Let F(x) = xet^2 dt for x ∈ [0, 1]. Find F''(x) for x
∈ (0, 1).
4. Let F(x) = Só xetdt for x € [0,1]. Find F"(x) for x € (0,1). (Al- = ) though not necessary, it may be helpful to think of the Taylor series for the exponential function.)

Answers

Answer 1

To find the second derivative of F(x) = [tex]\int\limits^0_x {e^t}^{2} } } \, dx[/tex] dt for x ∈ (0, 1), we can use the fundamental theorem of calculus and apply the chain rule twice. The second derivative is given by F''(x) = [tex]2e^{x^{2} } (1+2x^{2} )[/tex]

To find F''(x), we differentiate F'(x) first. Using the fundamental theorem of calculus, we have F'(x) = [tex]e^{x^{2} }[/tex]. Applying the chain rule, we obtain d/dx([tex]e^{x^{2} }[/tex]) = [tex]2xe^{x^{2} }[/tex].

Now, to find F''(x), we differentiate F'(x) with respect to x. Applying the chain rule again, we have d/dx([tex]2xe^{x^{2} }[/tex]) = [tex]2e^{x^{2} }[/tex] + [tex]4x^{2} e^{x^{2} }[/tex]. Simplifying this expression, we get F''(x) = 2[tex]e^{x^{2} }[/tex](1 + [tex]2e^{x^{2} }[/tex]).

Therefore, the second derivative of F(x) is given by F''(x) = 2[tex]e^{x^{2} }[/tex](1 + 2[tex]{x^{2} }[/tex]) for x ∈ (0, 1). This result shows that the second derivative is always positive for x ∈ (0, 1), indicating that the function is concave up within that interval.

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Related Questions

Suppose that the average screen time for all students at this middle school is 2 hours, with a standard deviation of 0.6 hours. A random sample of 36 students turns out to have an average of 2.2 hours? Calculate a standardized score for this sample average.

Answers

The calculated value of the standardized score for this sample average is 2

How to calculate a standardized score for this sample average.

From the question, we have the following parameters that can be used in our computation:

Population mean = 2

Population standard deviation = 0.6

Sample size = 36

Sample mean = 2.2

The standardized score for this sample average can be calculated using

z = (Score - Sample mean)/(Sample standard deviation)

Where

Standard deviation = Population standard deviation/√n

So, we have

Standard deviation = 0.6/√36

Evaluate

Standard deviation = 0.1

So, we have

z = (2.2 - 2)/0.1

Evaluate

z = 2

Hence, the standardized score for this sample average is 2

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I got correct on this question but I wrote some of the numbers in a different order, is it okay if I wrote it in a different order on every question similar like this?

Answers

Answer:

yes and no....It depends if u got the answer correct then u got ur mark but if the teacher expects your answer a certain way then u might lose maybe just 1 mark but dont stress it looks good and u should get full marks

Serenity is going to invest $850 and leave it in an account
for 5 years. Assuming the interest is compounded
annually, what interest rate, to the nearest hundredth of a
percent, would be required in order for Serenity to end up
with $1,130?

Answers

Answer:

5.86

Step-by-step explanation: its right on delta math

what is the longitudinal position latitudinal position of Nepal ​

Answers

Step-by-step explanation:

I think that is your answer because in the Himalayas it lies between latitudes 26.

What is the compound ratio of 3:4 and 4:5?

Answers

Use this link i cant put it

Hhhhhhhhhhjhhjhhjhjjjjjjhhhhhhhhhh

Answers

Answer:

i know right? It's so difficult till I'm brainless when I try to solving it

Answer:

same tbh

Step-by-step explanation:

5x-2y=15
2x+6y=-11
solve by substitution or equal values method

Answers

Answer:

Point form -

[tex](2-\frac{5}{2})[/tex]

Equation form -

[tex]x=2, y=-\frac{5}{2}[/tex]

Step-by-step explanation:

if you have any questions feel free to ask

What is the area, in square inches of a rectangle will the dimensions with 7/8 3/16 in the diagram below?​

Answers

Answer:

1 1/16

Step-by-step explanation:

you you have to add 7/8 + 3/16 to get the answer of one whole and 1/16

Please help if you would want brianleist!! :D ^^

Answers

Answer:

384

Step-by-step explanation:

v= L x W x H

v= 4 x 2 x 1.2

v= 9.6

9.6 x 40 = 384

lmk if you have any questions  :)

Answer:

A

Step-By-Step Explanation:

Step One: The first step is to figure out the volume of one. The volume formula is length times width times height. We have all the dimensions so: 4 times 2 times 1.2= 9.6.

Step Two: Now, we just mutiply the number by 40 since there are 40 slabs: 384.

Select the correct answer.
If f(t)
- 6 and 9(3)
22 (
+ 3), find g(x) < f(x).
OA. 5/2 - 3232
- 1867
OB. 75
3VI3
18va
OC. 5
6vr
OD.
5
3.13 – 180

Answers

A

see attached for explanation

I hope it helps

Complete the following similarity statement for the figure below.

Answers

Answer:

Triangle JKLM ~ Triangle STUV

∆ JKLM ~ ∆ STUV.(ASSA)Angle, side, side ,and angle is the reason according to congruency .

Electron A is fired horizontally with speed 1.00 Mm/s into a region where a vertical magnetic field exists. Electron B is fired along the same path with speed 2.00 Mm/s.
(i) Which electron has a larger magnetic force exerted on it?
A does.
B does.
The forces have the same nonzero magnitude.
The forces are both zero.
(ii) Which electron has a path that curves more sharply?
A does.
B does.
The particles follow the same curved path.
The particles continue to go straight.

Answers

a)The force on electron B doubles the force acting on electron A

The correct answer is (b)

b)The path radius for electron A is half that of electron B .

The correct option is (a)

Magnetic Force

Moving charges are sources of the magnetic field and also recipients of the magnetic interaction. Stationary charges interact with the electric field but are not influenced by the magnetic field. The magnetic force acting on a moving charge is proportional to the value of the charge, to its velocity, and the absolute value of the magnetic field. The absolute value of the force also depends on the relative direction of the magnetic field and the velocity.

The magnetic force acting on the electron equals:

[tex]F_A =ev_A(B).....(1)\\\\F_B =ev_B(B).....(2)[/tex]

proportional to the vector product between the velocity and the magnetic field. The magnetic field and the velocity vectors are perpendicular, consequently, the absolute value of the vector product reduces to the product of the absolute values,

[tex]|F_A| =e|v_A||B|\\\\|F_B| =e|v_B||B|[/tex]

The only difference between the forces strives in the value of the velocities. The velocity of electron B is twice that of electron A . Therefore, the force on electron B doubles the force acting on electron A

The correct answer is (b)

b) To analyze the orbit of the electrons due to the magnetic force let us use Newton's second law. The magnetic force is always perpendicular to the velocity not changing its absolute value but only its direction. The acceleration resulting from the force is centripetal. In scalar form

[tex]F_A =ev_A(B)=ma_c_A\\\\F_B =ev_B(B)=ma_c_B[/tex]

Substituting the centripetal acceleration in terms of the velocities and the radiuses,

[tex]ev_AB=m\frac{v^2_A}{R_A} \\\\ev_BB=m\frac{v^2_B}{R_B}[/tex]

Solving for the radius,

[tex]R_A=\frac{mv_A}{eB} \\\\R_B=\frac{mv_B}{eB}[/tex]

The orbital radius is directly proportional to the velocity of the electron. As a result the path radius for electron A is half that of electron B .

The correct option is (a)

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Tamika is making a flag design in the shape of a parallelogram. Which x- and y-values must she use in order to guarantee that the flag is in the shape of a parallelogram?​

Answers

Answer:

x = 1/2

y = 3

Step-by-step explanation:

Remark

The diagonals of a parallelogram cut each other in half. That means that x lengths are equal and the y lengths are equal

Equations

3y = y + 6

10x = 6x + 2

Solution for x

10x = 6x + 2                     Subtract 6x from both sides

10x - 6x = 6x - 6x + 2

4x = 2                              Divide by 4

4x/4 = 2/4

x = 1/2

Solution for y

3y = y + 6

3y - y = y- y + 6

2y = 6

y = 3

Answer:

Step-by-step explanation:

The results of an empirical study reveal the following: n=27, sample mean = 3,000, sample standard deviation = 900. The 90% confidence interval of the true population mean is closet to: = = 2,400 and 3,400 1,200 and 4,800 2,700 and 3,300 0 2,000 and 4,000.

Answers

The 90% confidence interval is approximately 2,400 and 3,400.

The 90% confidence interval of the true population mean can be calculated using the formula: sample mean ± (critical value * standard error). Since the sample size is small (n=27), we need to use the t-distribution and its corresponding critical value. For a 90% confidence level with 26 degrees of freedom (n-1), the critical value is approximately 1.706.

Using the given values, the standard error is calculated as the sample standard deviation divided by the square root of the sample size: 900 / sqrt(27) ≈ 171.97.

Substituting the values into the formula, the 90% confidence interval is approximately 3,000 ± (1.706 * 171.97), which yields a range of approximately 2,424.5 to 3,575.5.

Therefore, the closest option to the 90% confidence interval is 2,400 and 3,400.

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Determine whether the following equation is separable. If so, solve the given initial value problem. dy/dt = 2ty +1, y(0) = -3 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The equation is separable. The solution to the initial value problem is y(t) = ___ B. The equation is not separable. 9.3.28

Answers

The equation is separable. The solution to the initial value problem is y(t) = y(0) = -3.

A. The equation is separable. The solution to the initial value problem is y(t) = ___

To determine whether the given differential equation is separable, we need to check if it can be written in the form dy/dt = g(t) * h(y), where g(t) is a function of t only and h(y) is a function of y only.

In this case, the equation is dy/dt = 2ty + 1. We can rearrange it as:

dy = (2ty + 1) dt

Now, we can see that we have both y and t terms on the right-hand side, indicating that the equation is not yet separable.

Therefore, the correct choice is B. The equation is not separable.

Unfortunately, no solution can be provided for the initial value problem y(0) = -3 since the equation is not separable.

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• The ratio of cookies to eggs was 9 to
1, which means that?
? cookies
could be made using 3 eggs.

Answers

I got shot in the Hebrew morning I was going on the same day lol I was going on the balls in

Sarah needs to make 3 pies. She needs 6 apples to make one apple pie, 9 peaches to make one peach pie, and 32 cherries to make one cherry pie. The graph shows how many apples, peaches, and cherries Sarah has.

What combination of pies can she make?

Answers

The combination of pies she can make are:

one cherry pie, one peach pie and one apple pie

How to Interpret Bar Graphs?

A bar graph is defined as a diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width.

We are given the following parameters:

Number of apples to make one apple pie = 6

Number of peaches to make one peach pie = 9

Number of cherries to make one cherry pie = 32

From the bar graph, she has:

26 apples

12 peaches

34 cherries

Since she wants to make 3 pies, then she can make:

one cherry pie, one peach pie and one apple pie

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Create 5 geometric sequences

Answers

Answer:

Below.

Step-by-step explanation:

The formula for a GS is:

a1, a1r,  a1 r^2, a1r^3 .....

Examples are:

1. First  term a1 =2 and common ratio r = 3, the first 4 terms are:

2,  2*3,  2*3^2,  2*3^3

= 2, 6, 18, 54

2. a1 = 1 , r = 0.5:

1, 0.5,  0.25,  0.125  .....

3. a1 = -4,  r = -2:-

-4,  8, -16,  32  ...

4.  a1 = 0.1,  r = -3:

0.1,  -0.3,  0.9, -2.7 .....

5. a1 = 2, r = 1/3:

2,  2/3,  2/9,  2/27 .....

Find the maximum heigh reached by the rocket

y=-16x^2+146x+137

Answers

The height of the rocket y in feet is related to the time after launch, x in seconds, by the given equation i.e.
......(1)
It is required to find the maximum height reached by the rocket. For maximum height put .
So,

Put x = 5.15 in equation (1).

So, the maximum height reached by the rocket is 503.39 m.

Answer:

Step-by-step explanation:

se gana 10000 y 2

The equation for the rollercoaster before is f(x)=-0.2x^2-2x

Find the vertex algebraically

Hint: x=-b/2a

Answers

??? The answer is not able to be found for the fact that there are 3 numbers all coming from x.

Suppose Nate loses 38% of all thumb wars.

(a) What is the probability that Nate loses two thumb wars in a row?
(b) What is the probability that Nate loses three thumb wars in a row?
(c) When events are independent, their complements are independent as well. Use this result to determine the probability that Nate loses three thumb wars in a row, but does not lose four in a row.

1. The probability that Nate loses two thumb wars in a row is: _______________
2. The probability that Nate loses three thumb wars in a row is:_____________

Answers

a. Probability of losing the second thumb war is also 0.38.

b. Probability of losing the third thumb war is also 0.38.

Given that Nate loses 38% of all thumb wars.

We can use the probability of losing the thumb war as

p=0.38.

The probability of winning is

1-0.38=0.62.

a) Probability of losing two thumb wars in a row is:

P(loses two in a row) = P(loses first) × P(loses second)

The probability of losing the first thumb war is 0.38.

The probability of losing the second thumb war is also 0.38

So,

P(loses two in a row) = (0.38) × (0.38)

= 0.1444

b) Probability of losing three thumb wars in a row is:

P(loses three in a row) = P(loses first) × P(loses second) × P(loses third)

The probability of losing the first thumb war is 0.38.

The probability of losing the second thumb war is also 0.38

The probability of losing the third thumb war is also 0.38.

So,

P(loses three in a row) = (0.38) × (0.38) × (0.38)

= 0.054872

c) When events are independent, their complements are independent as well.

If the probability of winning the thumb war is p, then the probability of losing the thumb war is 1-p.

The complement of "losing three in a row" is "not losing three in a row".

P(not loses three in a row) = 1 - P(loses three in a row)P(not loses three in a row)

= 1 - 0.054872

= 0.945128

The probability that Nate loses three thumb wars in a row, but does not lose four in a row is the probability of losing three minus the probability of losing four in a row.

P(loses three but not four in a row) = P(loses three in a row) - P(loses four in a row)

P(loses four in a row) = P(loses three in a row) × P(does not lose the next)

P(loses four in a row) = (0.38) × (0.38) × (0.38) × (0.62)

= 0.02081416

P(loses three but not four in a row) = 0.054872 - 0.02081416

= 0.03405784

The probability that Nate loses two thumb wars in a row is 0.1444

The probability that Nate loses three thumb wars in a row is 0.054872.

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A combination lock has 38 numbers from zero to 37, and a combination consists of 4 numbers in a specific order with no repeats. Find the probability that the combination consists only of even numbers. (Round your three decimal places). The probability that the combination consists only of even numbers is.

Answers

The probability represents the combination consists only of even numbers as per given condition is equal to 0.020.

Total numbers in combination lock = 38

Numbers from 0 to 37.

To find the probability that the combination consists only of even numbers,

Determine the total number of combinations that can be formed using only even numbers

And divide it by the total number of possible combinations.

Total number of even numbers in the lock

= 19 (since there are 19 even numbers from 0 to 37)

Calculate the total number of combinations using only even numbers,

Use the concept of combinations (nCr).

Since there are 19 even numbers to choose from,

Choose 4 numbers without repetition, the number of combinations is,

Number of combinations

= ¹⁹C₄

= 19! / (4!(19-4)!)

= (19 × 18 × 17 × 16) / (4 × 3 × 2 × 1)

= 3876

Now, calculate the total number of possible combinations without any restrictions.

Since we have 38 numbers to choose from,

and  choose 4 numbers without repetition, the number of combinations is,

Number of total combinations

= ³⁸C₄

= 38! / (4!(38-4)!)

= (38 × 37 × 36 × 35) / (4 × 3 × 2 × 1)

= 194,580

Finally, find the probability by dividing the number of combinations using only even numbers by the total number of combinations,

Probability

= Number of combinations using only even numbers / Total number of combinations

= 3876 / 194580

≈ 0.0199

≈ 0.020 Rounded to three decimal places.

Therefore, the probability that the combination consists only of even numbers is approximately 0.020.

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Given the following facts about the moment generation Max+b) (+) . et My lat). If a normal random Variable, with mean cand stand and deviation d, (I) then My (4) variable and standard with mean Mr deviation bx = 4, and that y=34+5. use the moment generating & unction uniqueness theoren, and facts (I) and (IT) above to prove that is a normal random variable.

Answers

Since the mean and variance of y are the same as those of a normal random variable, y is a normal random variable.

The given moment generating function is Mx(t) = e^(t(4 + 5t + 17t^2/2)), where t is the moment. The moment generating function of a normal random variable is given by Mx(t) = e^(μt + σ^2t^2/2).Comparing the two, we get:μ = 4σ^2 = 17/2We can now compute the first and second moments of y, using the moment generating function: My(t) = e^(t(34 + 5t)) × e^(t(4 + 5t + 17t^2/2))= e^(34t + 9t^2 + 17t^3/2 + 4t + 5t^2) = e^(34t + 14t^2 + 17t^3/2)So,μy = My(0) = 1 and σy^2 = My''(0) - My'(0)^2= (17/2) - 4 = 9/2

Since the mean and variance of y are the same as those of a normal random variable, y is a normal random variable.

This completes the proof using the moment generating function uniqueness theorem.

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The moment generating function (MGF) of a random variable is a mathematical function that uniquely defines the probability distribution of that variable. Therefore, if the MGF of a random variable is the same as that of a known distribution, the random variable follows that distribution.

This is known as the uniqueness theorem of moment generating functions.

Using the given moment generating function of a random variable X (Max+b)(+).etMy.lat), we need to prove that X follows a normal distribution. Here, Max+b = a, My = m, and  = s (standard deviation).

Using the MGF, we can find the moments of the distribution. Differentiating the MGF 'n' times gives the nth moment about zero. We can use this to find the mean and variance of the distribution.

Therefore, the mean of the distribution is the first derivative of the MGF at t=0,

and the variance is the second derivative of the MGF at t=0.

Using facts (i) and (ii), we can write the MGF of X as:

(Mx(t)) = [(b + mt) + a(s^2 + m^2)/2] / [(s^2/2) + (t^2/2)]

Taking the first derivative of Mx(t) and substituting t=0, we get:

[tex]E(X) = [(b + m*0) + a(s^2 + m^2)/2] / [(s^2/2) + (0^2/2)]E(X) = (b + am) / (s^2/2) + 0E(X) = (2(b + am))/s^2[/tex]

This gives us the mean of the distribution as

(2(b + am))/s^2

Taking the second derivative of Mx(t) and substituting t=0, we get:

[tex]Var(X) = [(b + m*0) + a(s^2 + m^2)/2] / [(s^2/2) + (0^2/2)]Var(X) = [a(s^2 + m^2)/2] / (s^2/2) + 0Var(X) = a(s^2 + m^2)/s^2 - 1[/tex]

We know that the MGF of a normal distribution with mean m and variance s^2 is given by:

[tex](Mn(t)) = e^(mt + s^2t^2/2)[/tex]

Comparing this with the given MGF of X, we see that they are equal.

Therefore, X follows a normal distribution with mean (2(b + am))/s^2 and variance a(s^2 + m^2)/s^2 - 1.

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Can someone help out? No BS please. ​

Answers

Answer:

Angle EHG

Step-by-step explanation:

If you want explanation tell me in comments

Answer:

the correct answer is angle EHB

find a vector function, r(t), that represents the curve of intersection of the two surfaces. the paraboloid z = 2x2 y2 and the parabolic cylinder y = 3x2

Answers

To find the vector function that represents the curve of intersection between the paraboloid z = 2x^2y^2 and the parabolic cylinder y = 3x^2, we can parameterize the curve using a parameter t. The vector function r(t) will consist of x(t), y(t), and z(t), where each component is expressed in terms of t.

First, we need to find the relationship between x and y by setting the equation of the parabolic cylinder equal to the y-coordinate of the paraboloid. Substituting y = 3x^2 into z = 2x^2y^2, we get z = 2x^2(3x^2)^2 = 18x^6.

Now, we can express x and z in terms of t. Let's set x(t) = t, which allows us to write z(t) = 18t^6. The y-component can be obtained by substituting x(t) into the equation of the parabolic cylinder: y(t) = 3(t^2).

Finally, we can combine the x(t), y(t), and z(t) components to form the vector function r(t) = (x(t), y(t), z(t)). In this case, r(t) = (t, 3t^2, 18t^6) represents the curve of intersection between the two surfaces.

Note that this vector function parameterizes the curve and allows us to describe various points on the curve by plugging in different values of t.

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Glenn needs to cut pieces of ribbon that are each 1 meter long to make ribbon key chains. If he has 6 pieces of ribbon that are each 1 dekameter long, how many 1−meter pieces of ribbon can he cut?

Answers

Answer: 60

Step-by-step explanation:

S someone please help me ​

Answers

The correct answer is D the very last one.
the last answer i believe

How many pints is 80 cups

Answers

Answer:

40

Step-by-step explanation:

2 cups = 1 pt

therefore

1/2 is the equation

...

80/2 = 40

I have two questions
1.) what are 3 equivalent ratios for 5/45

2.) what are 3 equivalent ratios for 3/5

Answers

1.) 1/9, 2/18, 3/27
2.) 6/10, 12/20, 9/15

Find the particular solution determined by the given condition. ds/dt = 16t^2 + 9t - 6; s = 120 when t = 0 The particular solution that satisfies the given condition is s =

Answers

The particular solution that satisfies the given condition is s = (16/3)t³ + (9/2)t² - 6t + 120

To find the particular solution of the differential equation ds/dt = 16t² + 9t - 6 with the condition s = 120 when t = 0, we need to integrate the right-hand side of the equation with respect to t and then solve for the constant of integration using the given condition.

First, let's integrate the right-hand side of the equation:

∫(ds/dt) dt = ∫(16t² + 9t - 6) dt

Integrating term by term, we get:

s = (16/3)t³ + (9/2)t² - 6t + C

Now, we can use the given condition s = 120 when t = 0 to determine the value of the constant of integration C:

120 = (16/3)(0)³ + (9/2)(0)² - 6(0) + C

120 = C

Therefore, the particular solution that satisfies the given condition is:

s = (16/3)t³ + (9/2)t² - 6t + 120

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a long, straight solenoid has 750 turns. when the current in the solenoid is 2.90 a, the average flux through each turn of the solenoid is 3.25103wb..What must be the magnitude of the rate of change of the current in order for the self-induced emf to equal 7.30mV ? At the peak of rice production in Georgia, approximately howmany acres of land in Georgia were used to grow the crop?A. 40,000B. 4 millionC. 12 millionD. 24 million Question 4 (1 point) Beginning Ending Inventory $27,000 $28,000 Accts. Rec. 21,000 22,000 Accts. Pay. 10,000 14,000 Credit Sales = $175,000 COGS = $125,000 How many days are in the receivables period? Q1. A firm's total cost function is c(y) = y + (a + B)y + 100. p = $50. Find the best output level, y*. Which of the following events will shift the aggregate demand curve to the right?A?An increase in government expenditures, but not a change in the price levelB?An increase in government expenditures or a decrease in the price levelC?An? decrease in the price level, but not an increase in governmnet expenditures.D: A decrease in governmnet expenditures or an increase in the price level Proper segregation of plasmids into daughter cells may incorporate which of the following strategies?(choose appropriate response(s)A. Random partitioning due to high copy numberB. Polymerization of a filament that binds to, and physically separates plasmidsC. Post-segregational killing via toxin / antitoxin systemD. Handcuffing Smash Company has 4.000 machine hours available annually to manufacture badminton racquets. The following information is available for the two different racquets produced by Smash: How many units of each racquet should be manufactured for the company to maximize its operating income? 1.900 units of Pro and 271 units of Mid 1.900 units of Pro and 1,629 units of Mid 4.000 units of Mid and 271 units of Pro 1.900 units of Pro and 4.000 units of Mid Which of the following are valid ways to specify the string literal foo'bar in Python:1 'foo\'bar'2 """foo'bar"""3. foo'bar4. none of above. (Algebra: perfect square) Write a program that prompts the user to enter an integer m and find the smallest integer n such that m * n is a perfect square. (Hint: Store all smallest factors of m into an array list. n is the product of the factors that appear an odd number of times in the array list. For example, consider m = 90, store the factors 2, 3, 3, 5 in an array list. 2 and 5 appear an odd number of times in the array list. So, n is 10.)Here are sample runs:Enter an integer m: 1500The smallest number n for m * n to be a perfect square is 15 m * n is 22500 Consider the process of grocery delivery to the customers after online ordering. Please respond the following questions based on the information provided below.4-1. If the workday is 8 hours, and if it takes 30 minutes to deliver each order, calculate the daily rate of order delivery. Show how you obtained this number4-2. If orders are received at the grocery store at a rate of 3 per hour, considering that prep for delivery takes 15 minutes, how many orders in average will be awaiting prep at any point in time at this grocery store? A survey was conducted two years ago asking college students their options for using a credit card. You think this distribution has changed. You randonty select 425 colage students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the diston? Use -0.005 Complete pwts (a) through (d) 28% 110 23% 97 Rewards Low rates Cash back Discounts Other 20% 21% 100 8% 48 st What is the alemate hypothes, 7 OA The dirbusion of movatns a 20% rewards, 23% low rate, 21% cash back, 0% discours, and 20% other The deribution of motivations is 110 rewards, 97 low rate 109 cash back, 48 discounts, and other The distribution of motivations differs from the old survey Which hypsis is the dai? Hy (b) Determine the offical value- and the rejection region Mound to the deceal places a ded) Help me solve this View an example Clear all Get more help. 18 Points: 0.67 of 6 Rasponse Save Check answer tv N Bik Old Survey New Survey Frequency, f A survey was conducted two years ago asking college students their top motivations for using a credit card. You think this distribution has changed. You randomly select 425 colege students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the distribution? Use a-0025. Complete parts (a) through (d) % 28% 23% 110 97 Rewards Low rates Cash back Discounts A% 21% 100 48 Other 20% 61 What is the alternate hypothesis, H,? CA The distribution of motivations is 28% rewards, 23% low rate, 21% cash back, 8% discounts, and 20% other The distribution of motivations is 110 rewards, low rate, 109 cash back, 48 discounts, and 61 other c. The distribution of motivations differs from the old survey. Which hypothesis is the claim? OH H (b) Determine the critical value. and the rejection region. X-(Round to three decimal places as needed.) A new machine that deposits cement for a road requires 12 hours to complete a one-half mile section of road. An older machine requires 15 hours to pave the same amount of road. After depositing cement for 3 hours, the new machine develops a mechanical problem and quits working. The older machine is brought into place and continues the job. How long does it take the older machine to complete the job? (Round your answer to one decimal place.) 200mA, A good radiograph is taken with: 200ms, 75RS, 100cm SID, 6:1 grid. Find the new mAs value to maintain optical density for: 150 RS, 200 cm SID, 16:1 grid Find the Perimeter of the figure below, composed of a square and four semicircles. Rounded to the nearest tenths place Modos Company has deposited $4,020 in checks received from customers. It has written $1,510 in checks to its suppliers. The initial bank and book balance was $410. If $3,400 of its customers' checks h Which of the following are techniques for constructing acontinuous yield curve from a discrete set of spot bond prices orinterest rates?A) SplinesB) Polynomial InterpolationC) Neson-Siegel Functi Assume that females have pulse rates that are normally distributed with a mean of u = 76.0 beats per minute and a standard deviation of c = 12.5 beats per minute. Complete parts (a) through (b) below.16 adult females are randomly selected, find the probability that they have pulse rates with a sample mean less than 83 boats per minute The probability is _____(Round to four decimal places as needed) b. Why can the normal distribution be used in part (a), even though the sample size does not exceed 30?A. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample sizeB. Since the mean pulse rate exceeds 30, the distribution of sample means is a normal distribution for any sample size C. Since the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size D. Since the distribution is of individuals, not sample means, the distribution is a normal distribution for any sample size, When a population mean is compared to to the mean of all possible sample means of size 25, the two means area. equalb. not equalc. different by 1 standard error of the meand. normally distributed & what is the incremental IRRConsider two mutually exclusive R&D projects that Savage Tech is considering. Assume the discount rate for both projects is 12 percent. Project A: Project B: Server CPU .13 micron processing project B Which pair of functions is equivalent? 12 a. f(x) = x - 3x + 5 c. f(x) - 10x2 + 9x + 8 g(x) = x + 3x - 5 g(x) = 8x2 + 10x + 9 b. Ax) = (5x - 7) + (-2x + 1) + 4x d. f(x) - 18x - 24 g(x) = (x + 4)-(-4x + 2) + 2x g(x) = 6(3x - 4) 2. Which expression represents the volume of the prism shown? 14 (9x+3) (x+2) (4x - 5) a. 36x - 30 c. 36x + 39x2 - 81x - 30 b. 36x + 18x - 30 d. 14x. 3. Which of the following represents factoring g* +5g + 25 + 10 by grouping? 12 Page 1 a. glg + 5) +268 + 5) c. (8 + 5)3 b. (g? + 5) + (2g + 5) d. (8 + 5)(8 + 5) + (8 + 2)(8 + 2) Part B. Applications 4. What are the restrictions on the variable for 18n" ? 27n9 /1 5x r2 5. Simplify. + 9x 3y _12 __12 3x2 + x 6. Simplify. 2x + 4 7. Simplify 8g 36g i 11 8. Simplify. 6x? - 5472 x? + 4xy-2172 __12 9. Simplify. 3x 14x2 7x? 15x 12