A heptagon has angles x, 105 degrees, 105 degrees, 160 degrees, 124 degrees, 97 degrees, 137 degrees. Find the missing angle measure in the heptagon. The sum of the interior angles of a heptagon is °. The measure of the missing angle is °.

Answers

Answer 1
Heptagon has all angle 900
So
X+105+105+160+124+97+137=900
X=900-728=172
Answer 2

Answer:

900 and 172 for edg 2020-2021

Step-by-step explanation:


Related Questions

yo i really need help please in order to pass this i’ll give a brainliest to anyway who knows the correct answer please no links

Answers

all i know is that it would not be 13.9

Answer:

12in

Step-by-step explanation:

this is the only subject i'm good at in math XDDD.

round 3.060 to the nearest whole number.

Answers

Answer:

3

Step-by-step explanation:

dude kinda obv that its 3

Answer:

answer would be 3

Step-by-step explanation:

Part A is already answered

Part B asks: What is the length of the hypotenuse?

Answers

Answer:

52

Step-by-step explanation:

Using the Pythagorean theorem

a^2+b^2 = c^2

20^2 + 48^2 = c^2

400 +2304=c^2

2704=c^2

Taking the square root of each side

sqrt(2704) = sqrt(c^2)

52 = c

Answer:

[tex]hypotenuse^{2}[/tex] = [tex]altitude^{2}[/tex] + [tex]base^{2}[/tex]

[tex]hyp^{2}[/tex] = [tex]48^{2}[/tex] + [tex]20^{2}[/tex]

       = 2304 + 400

       = 2704

∴[tex]hyp[/tex] = [tex]\sqrt{2704}[/tex]

       = 52

hope this answer helps you....

HURRY PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Answers

Answer:

48 is the answer

Step-by-step explanation:

9*4 +. 6*2

36 + 12

48

48.............................

In a publication of a renowned magazine, it is stated that cars travel in
average at least 20,000 kilometers per year, but do you think the average actually
is minor. To test this claim, a sample of 100 car owners is asked
randomly selected to keep a record of the kilometers they travel. It would
If you agree with this statement, if the random sample indicates an average of 19,000
kilometers and a standard deviation of 3900 kilometers? Use a significance level of
0.05 and for its engineering conclusion use:
a) The classical method.
b) The P-value method as an auxiliary.

Answers

Both the classical method and the p-value method lead to the conclusion that the average distance cars travel per year is less than 20,000 kilometers,

a) t =  -2.564

b)  t = -2.564

How to thest the claim?

To test the claim that the average distance cars travel per year is less than 20,000 kilometers, we can conduct a hypothesis test using the classical method and the p-value method.

a) The steps we need to follow are:

Step 1: Formulate the null and alternative hypotheses:

Null hypothesis (H₀): The average distance cars travel per year is 20,000 kilometers.

Alternative hypothesis (H₁): The average distance cars travel per year is less than 20,000 kilometers.

Step 2: Determine the test statistic:

Since we know the sample size (n = 100), the sample mean (x = 19,000 kilometers), and the sample standard deviation (s = 3900 kilometers), we can use the t-test statistic.

t = (x - μ₀) / (s / √n)

where μ₀ is the assumed population mean under the null hypothesis.

Step 3: Set the significance level:

The significance level is given as 0.05, which means we want to be 95% confident in our conclusion.

Step 4: Calculate the critical value:

Since the alternative hypothesis is one-tailed (less than), we need to find the critical t-value corresponding to a 0.05 significance level and degrees of freedom (df) = n - 1 = 99. From the t-distribution table or calculator, the critical t-value is approximately -1.660.

Step 5: Calculate the test statistic:

t = (19,000 - 20,000) / (3900 / √100)

t = -10 / (3900 / 10)

t ≈ -2.564

Step 6: Compare the test statistic with the critical value:

Since -2.564 is less than -1.660, the test statistic falls in the rejection region. We reject the null hypothesis.

Step 7: Make a conclusion:

Based on the classical method, since the test statistic falls in the rejection region, we conclude that the average distance cars travel per year is significantly less than 20,000 kilometers.

b) The P-value method:

Using the same test statistic t = -2.564 and the degrees of freedom (df) = 99, we can calculate the p-value. The p-value is the probability of observing a test statistic as extreme as the one obtained, assuming the null hypothesis is true.

From a t-distribution table or calculator, the p-value corresponding to t = -2.564 and df = 99 is approximately 0.0075 (or 0.75% if multiplied by 100).

Since the p-value (0.0075) is less than the significance level (0.05), we reject the null hypothesis. This suggests strong evidence that the average distance cars travel per year is significantly less than 20,000 kilometers.

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i really need help so can you plz help meeee

Answers

Answer:

5/11 is 0.4555555555555555555555555

so basically the first option out of the two.

U do know you can just calculate this with the calculator right?

Help!! Please!!!!!!!

Answers

Answer:

E

Step-by-step explanation:

dentify all the steps necessary for graphing parametric equations? select all answers that apply. select one or more: a. draw arrows on the curve to show the direction the curve follows b. plot the points c. create a table d. solve the equations for t and plot that point e. connect the points with a dashed line f. connect the points with a smooth curve g. combine both equations into one equation in terms of t h. setup your coordinate plane with t on the horizontal axis

Answers

The steps necessary for graphing parametric equations include creating a table, solving the equations for t and plotting those points, connecting the points with a smooth curve, and setting up the coordinate plane with t on the horizontal axis (c, d, f, h).

Create a table: Choose a range of values for t and calculate the corresponding values for x and y using the parametric equations. List these values in a table.

Solve the equations for t and plot those points: Solve the parametric equations separately for t to obtain the x and y coordinates. Plot these points on the coordinate plane.

Connect the points with a smooth curve: Once all the points are plotted, connect them with a smooth curve. This curve represents the graph of the parametric equations.

Set up the coordinate plane with t on the horizontal axis: Label the horizontal axis as t and the vertical axis as either x or y. This allows you to visualize how the x and y values change with respect to the parameter t.

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Suppose you have two similar trapezoids with a scale factor of 4. If the angle measures of trapezoid ABCD are 70,110,110,70, what is the answer?

Answers

Answer: 140,  220,  220,  140

Step-by-step explanation:

All you have to do is double the numbers.

OMG PLS HELP WITH THIS IM PANICKING OMG I GOT A F IN MATH MY MOM JUST YELLED AT ME IM CRYING PLS HELP WITH THS- PLSS TELL ME I ALREADY DID NUMBER 2 BTW SO NO NEED JUST PLS HELP IN THE BOTTOM :(

Answers

Answer:

3. The equivalent fractions are presented as follows;

[tex]\dfrac{2}{3} = \dfrac{2 \times 2}{3 \times 2} =\dfrac{4}{6}[/tex]

4.  The equivalent fractions are presented as follows;

[tex]\dfrac{2}{3} = \dfrac{4 \times 2}{4 \times 3} =\dfrac{8}{12}[/tex]

5. The reason why it works is because [tex]\dfrac{1}{8} + \dfrac{1}{8} = \dfrac{1}{4}[/tex]

Step-by-step explanation:

3. Based on the shaded region of the given figures, the two fractions are equivalent

Mathematically, we can show the equivalency of the two fractions as follows;

[tex]\dfrac{2}{3} =\dfrac{2}{3} \times 1 = \dfrac{2}{3} \times \dfrac{2}{2} = \dfrac{2 \times 2}{3 \times 2} =\dfrac{4}{6}[/tex]

Therefore;

[tex]\dfrac{2}{3} = \dfrac{2 \times 2}{3 \times 2} =\dfrac{4}{6}[/tex]

4. From the shaded region of the given figure, the fractions are equivalent

Mathematically, we have;

[tex]\dfrac{2}{3} =\dfrac{2}{3} \times 1 = \dfrac{4}{4} \times \dfrac{2}{3} = \dfrac{4 \times 2}{4 \times 3} =\dfrac{8}{12}[/tex]

Therefore;

[tex]\dfrac{2}{3} = \dfrac{4 \times 2}{4 \times 3} =\dfrac{8}{12}[/tex]

5. The amount of salt required by the recipe = 1/4 teaspoon of salt

The measure of the spoon Jonas has = 1/8 teaspoon

When Jonas adds two 1/8 teaspoons, he gets;

[tex]\dfrac{1}{8} + \dfrac{1}{8} = \dfrac{1 + 1}{8} = \dfrac{2}{8} = \dfrac{2 \times 1}{2 \times 4} = \dfrac{2}{2} \times \dfrac{1}{4} = 1 \times \dfrac{1}{4} = \dfrac{1}{4}[/tex]

Therefore;

[tex]\dfrac{1}{8} + \dfrac{1}{8} = \dfrac{1}{4}[/tex]

Two 1/8 measuring teaspoons are equivalent to one 1/4 teaspoons and therefore Jonas is able to get the 1/4 teaspoons of salt the recipe asks for b combining two 1/8 measuring teaspoons of salt he has because 1/8 + 1/8 = 1/4.

Solve the system of differential equations S x1 = – 5x1 + 0x2 – 16x1 + 322 X2' x1(0) = 1, X2(0) = 5 21(t) = = 22(t) - = X2

Answers

The solution to the system of differential equations is x₁(t) = e⁻⁵ˣ + 3e³ˣ and x₂(t) = 2e⁻⁵ˣ + 5e³ˣ

Let's solve the given system of differential equations: x₁' = -5x₁ + 0x₂ ...(1) x₂' = -16x₁ + 3x₂ ...(2)

To solve this system, we can rewrite it in matrix form. Let's define the vector X = [x₁, x₂] and the matrix A as:

A = [[-5, 0], [-16, 3]]

The system can then be written as X' = AX, where X' is the derivative of X with respect to time.

Now, let's find the eigenvalues and eigenvectors of matrix A. The eigenvalues are obtained by solving the characteristic equation det(A - λI) = 0, where I is the identity matrix.

A - λI = [[-5 - λ, 0], [-16, 3 - λ]]

det(A - λI) = (-5 - λ)(3 - λ) - 0(-16) = λ² + 2λ - 15 = (λ + 5)(λ - 3)

Setting the characteristic equation equal to zero, we find the eigenvalues: λ₁ = -5 λ₂ = 3

To find the corresponding eigenvectors, we substitute each eigenvalue back into the matrix A - λI and solve the system of equations (A - λI)v = 0, where v is the eigenvector.

For λ₁ = -5: A - (-5)I = [[0, 0], [-16, 8]]

Using Gaussian elimination, we can solve the system of equations to find the eigenvector corresponding to λ₁: -16v₁ + 8v₂ = 0 => -2v₁ + v₂ = 0 => v₁ = (1/2)v₂

Let v₂ = 2, then v₁ = 1. Therefore, the eigenvector corresponding to λ₁ is v₁ = [1, 2].

For λ₂ = 3: A - 3I = [[-8, 0], [-16, 0]]

Solving the system of equations, we find: -8v₁ = 0 => v₁ = 0

Thus, the eigenvector corresponding to λ₂ is v₂ = [0, 1].

Now, let's express the solution of the system in terms of the eigenvalues and eigenvectors.

X(t) = c₁e(λ₁t)v₁ + c₂e(λ₂t)v₂

Substituting the eigenvalues and eigenvectors we found earlier, we have: X(t) = c₁e⁻⁵ˣ[1, 2] + c₂e³ˣ[0, 1]

Using the initial conditions, x₁(0) = 1 and x₂(0) = 5, we can find the values of c₁ and c₂.

At t = 0: [1, 5] = c₁[1, 2] + c₂[0, 1] 1 = c₁ 5 = 2c₁ + c₂

Solving these equations, we find: c₁ = 1 c₂ = 3

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Complete Question:

Solve the system of differential equations

x₁' = – 5x₁ + 0x₂

x₂' = – 16x₁ + 3x₂

x₁(0) = 1, x₂(0) = 5

solve the system of substitution y=-2x y=5x-21

Answers

Answer:

x = 3 is the answer

Step-by-step explanation:

1. Write the equation.

y = -2x

y = 5x - 21

2. Substitute the values.

(-2x) = 5x - 21

3. Solve the equation.

-2x = 5x - 21

-5x    - 5x

-7x = -21

4. Both negatives cancel

7x = 21

5. Divide both sides by 7

7x = 21

/7      /7

6. x = 3

7. Check the answer.

-2(3) = 5(3) - 21

-6 = 15 - 21

-6 = -6

x = 3 is the answer

Hope this helped,

Kavitha

P.S Sorry for taking so long.

How many sides do 4 pentagons and 3 nonagons have in all?

Answers

Answer:

47

Step-by-step explanation:

^

Help please I need this today

Answers

I’m not the best at math so I won’t even try. But have you used Photomath ?

Answer:

a = 15

t = 5

Step-by-step explanation:

[tex] \frac{12}{a} = \frac{16}{20} \\ \\ 16a = 12 \times 20 \\ \\16 a = 240 \\ \\ a = \frac{240}{16} \\ \\ a = 15 \\ \\ \\ \frac{2}{8} = \frac{t}{20} \\ \\ 8t = 40 \\ \\ t = \frac{40}{8} \\ \\ t = 5[/tex]

The first term of a geometric sequence is 8 and the fourth term is 216. What is the sum of the first 12 terms of the corresponding series? A. 2,125,760 B. 6,377,288 C. 236,192 D. 708,584

Answers

Answer:

2,125,760

Step-by-step explanation:

The first term (a) is 8

The fourth term is 216

Hence the sum of the first 12 term can be calculated as follows

= 8-8(3)^12/1-3

= 8-24^12/-2

= 2,125,760

The sum of first 12 terms is 2,125,760

Sum of the first 12 term  =  2,125,760

For geometric sequence,

aₙ = arⁿ⁻¹

where

a = first term

r = common ratio

n = number of terms

Therefore,

a = 8

a₄ = 216

let's find the common ratio

216 = 8 × r⁴⁻¹

216 = 8 × r³

r³ = 216 / 8

r³ = 27

r = [tex]\sqrt[3]{27}[/tex]

r = 3

Let's find sum of the first 12 terms.

Sₙ = a (rⁿ - 1) / r - 1

S₁₂ = 8(3¹² - 1) / 3 - 1

S₁₂ = 8(531440) / 2

S₁₂ = 4251520 / 2

S₁₂ = 2,125,760

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Write the integer that represents the opposite of each situation
100 feet above sea level

Answers

The answer is 100 m below sea level

Find the total area.

Answers

Answer:

area = 164.52 cm²

Step-by-step explanation:

area = (12x6) + (12x3x0.5x2) + (3.14)(0.5)(6²) = 164.52 cm²

4a=32



Fill in the blank:



a=___

Answers

Answer:

a = 8

Step-by-step explanation:

Divide both sides by 4.

a = 32 ÷ 4

a = 8

Four minutes is what percent of an hour?​

Answers

Answer

6 and 2/3 percent of an hour OR 6.666.... hour

I don’t know if you have to round or not but if it does just round

Step-by-step explanation:

Well 4 minutes of an hour is basically 4/60

4/60=1/15

1/15=x/100

solve the proportion by cross multiplying

100=15x

x=6.66666666

That is yoru percent

Plz answer quick need help. are the sums of double odd?

Answers

what do you mean are the sums of double odd?
no, they’re always even.

plllllzzz helppppppp

Answers

Answer:

5. B

6. A

7. C

Step-by-step explanation:

Answer:

5.) b. 12 - 2x

6.) a. 8x

7.) c. 5d + 3c = 66

Step-by-step explanation:

uhm, I don't really have proof, i've just been doing this for a long time, you're just gonna have to trust me on this one

As a preliminary helper result, show by induction that for events E1, E2,..., EM, M P(E, or E2 or ... ог Ем) < Р(Еm). m=1

Answers

By applying the principle of inclusion-exclusion, we can show that for any events E1, E2,..., EM, the inequality P(E1 or E2 or ... or EM) < P(EM) holds. This result holds true for any integer M ≥ 1.

To prove the statement by induction, we will assume that for M = 1, the inequality holds true. Then we will show that if the statement holds for M, it also holds for M + 1.

Base case (M = 1):

For M = 1, we have P(E1) ≤ P(E1), which is true.

Inductive step:

Assuming that the inequality holds for M, we need to show that it holds for M + 1. That is, we need to prove P(E1 or E2 or ... or EM or EM+1) < P(EM+1).

Using the principle of inclusion-exclusion, we can express the probability of the union of events as follows: P(E1 or E2 or ... or EM or EM+1) = P(E1 or E2 or ... or EM) + P(EM+1) - P((E1 or E2 or ... or EM) and EM+1). Since events E1, E2, ..., EM, and EM+1 are mutually exclusive, the last term on the right-hand side becomes zero: P(E1 or E2 or ... or EM or EM+1) = P(E1 or E2 or ... or EM) + P(EM+1)

Since we assumed that P(E1 or E2 or ... or EM) < P(EM), we can rewrite the inequality as: P(E1 or E2 or ... or EM or EM+1) < P(EM) + P(EM+1)

Now we need to show that P(EM) + P(EM+1) < P(EM+1) for the inequality to hold. Simplifying the expression, we have: P(EM) + P(EM+1) < P(EM+1)

Since P(EM+1) is a probability and is always non-negative, this inequality holds true. Therefore, by the principle of mathematical induction, we have shown that for any integer M ≥ 1, the inequality P(E1 or E2 or ... or EM) < P(EM) holds.

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Can I get help with number 15 am stuck

Answers

your answer is gonna be C !!

write 3^3 in expanded form and evaluate. can someone help me??

Answers

Answer:

27.

Step-by-step explanation:

3^3 = 3 * 3 * 3

= 9 * 3

= 27.

Answer:

IMAO YOU GAVE UP, PSY

Step-by-step explanation:

In sarah classroom, There are 6 girls or every 2 boys. What is the ratio of boys to the total number of student

Answers

For every 3 girls there is 1 boy, or for every 1 boy there is 3 girls

Answer:

3:1 (Girls:Boys)

6 divided by 2

A box contains 12 cereal bars. The empty box weighs 1.75 oz. The box and cereal bars together weighs 18.55 oz. How much does each cereal bar weigh?

Answers

Answer:

Each cereal bar weighs 16.8 oz

Step-by-step explanation:

Multiply 12 times 1.4 to get 16.8

Add 16.8 and 1.75 to get 18.55

Hope this helps! Pls mark brainliest

There are 60 apples and then add 59 apples two times . How many apples and there altogether

Answers

Answer:

Step-by-step explanation:

59 apples two times = 59 x 2 = 118 apples

Total apples = 118 + 60 = 178 apples

What is the solution to the system of
equations graphed below?

a.(-13,-20)
b.(-15,-22)
c.(-1,-8)
d.(-10,-15)

Answers

Answer:

(-13,-20)

Step-by-step explanation:

We know that the graph with x-intercept at (7,0) and y-intercept at (0,-7) is y = x-7

and the second equation is y = 2x+6

Therefore, we have two equations.

[tex] \large{ \begin{cases} y = x - 7 \\ y = 2x + 6 \end{cases}}[/tex]

Because both equations are equal (y=y)

x-7=2x+6

-7-6=2x-x

-13=x

We know the value of x, but not y-value. We substitute the value of x to get the value of y.

Substitute in any given equations which I will be substituting in the first equation.

y=-13-7

y = -20

Therefore when x = -13, y = -20

In coordinate form, we can write as (-13,-20).

If you have any questions, feel free to ask.

evaluate sum in closed form
f(x) = sin x + 1/3 sin 2x + 1/5 sin 3x + ....

Answers

The sum of given series is infinity ∑(n = 1) sin(nx)/(2n - 1).

What is sum of series?

A series' sum is the sum of the words or list of numbers that make up the series. If a series has a sum, it will be one integer (or fraction), such as 0, 1/2, or 99.

As given series is,

f(x) = sinx + sin(2x)/3 + sin(3x)/5+.....

The series function is trigonometric function such as sinx, sin(2x), sin(3x).

The nth term of series is sin(nx).

The coefficient of series is 1, 1/3, 1/5.

The coefficient of nth terms is 1/(2n - 1).

Sum of series is,

= infinity ∑(n = 1) sin(nx)/(2n - 1).

Hence, the sum of given series is infinity ∑(n = 1) sin(nx)/(2n - 1).

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Which value of x satisfies the equation below? 1/2 (3x + 17) = 1/6 (8x-10)

Choice answers:
A. -61
B -55
C. -41
D-35

Answers

I think is C,,,,,,,,,,,,,
Other Questions
Circle A has a radius of 16 inches. What is the circumference? 1) The P-wave from the March 11 9.0 magnitude Japan earthquake first arrived in Honolulu, Hawaii, 9 minutes and 19.7 seconds after the earthquake occurred. This is equal to 0.155 hours. Honolulu, Hawail, is 3715. 35 miles from the epicenter of this 9.0 magnitude earthquake How fast, in miles per hour, did the P-wave generated by this earthquake travel between Japan and Honolulu? Show your work 2) The tsunami that was generated by this March 11" earthquake took approximately 7.35 hours to reach Hawaii. The distance between the epicenter of the earthquake and the Hawaiian islands that first experienced the tsunami waves is approximately 3466 miles. How fast was the tsunami wave moving in miles per hour when it arrived in Hawaii? Show your work. 3) The height of the tsunami was "10 meters (32 feet) in Japan. It was only 0.9 to 1.2 meters (3 to 4 feet) on average when the tsunami reached Hawail. The destruction from the tsunami in Japan was devastating, while it was much less severe in Hawai. Why do you think the size of the tsunami changed so much between these two locations? I Abason dessordemille fiantsuno3. The regle sotamot4. Abou et Pierreleurs liverscommencant a t5 l'argentvolt How many times do I need to repeat myself and NO LINKSWhich of the following is often considered the most fundamental question about environmental ethics?Group of answer choicesWhat are the most moral food choices?Do we have a moral obligation to grow our population?How should non-human animals be treated by science?What is the moral value of clean water?What moral obligations do we have about the environment?Which moral theory is best? Which statement is true? A. A number subtracted from itself is a natural number. B. All rational numbers are integers. C. All irrational numbers are real numbers. W D. Every whole number is a natural number. Please help!!! It says what is Gods motive for depriving mans rest??No links and mark brainliest!! 19. A 0.0340 kg bullet traveling at 120 m/s embeds itself in a 1.24 kg wooden block whichis at rest on a smooth surface. The block then slides toward a spring and collides with it.The block compresses the spring (k = 99.0 N/m). Calculate how far the block bulletcompresses the spring.I Manure is carried by rainwater from land to a river. This is an example of whatA. Single pollution B. Multiple pollution C. Non point source pollution D. Point source pollution Solve the following equation for x.m(7-x) = 5-yNeed help ASAP!!! Will mark brainliest if correct!! The geological theory that states that pieces of earths lithosphere are in constant, slow motion is the theory of Responda verdadero (V) o Falso (F) Don Quijote atac a los molinas porque eran gigante disfrazados.a. Sancho no vea a los gigantes porque no era caballero.b. El dolor de Don Quijote provena de la cada que le ocasiono un molino. c. Don Quijote no durmi porque el dolor no lo dej.d. Sancho prefera comer y dormir que ir de aventura. Find the inverse Laplace transform f(t) = --!{F(s)} of the function F(s): = 4s $2 81 ft= (6) - c-- {} - {22} - = 4s 81 = L + help (formulas) 2 S 9 (1 point) Find the inverse Laplace transform f(t) = (-1{F(s)} of the function F(s) = = 7 52 9 + s-1' 7 f(t) = 2-1 50== -{+} = = help (formulas) S2 S - 1 Which of the following is not considered part of operational CRM?a. Sales systemsb. Marketing systemsc. Customer service systemsd. Data mining systems 1. Your house is 50 feet below sea level and you hike up 125 feet. What is your current elevation What argument did the university make in Regents v. Bakke?The student was not a good candidate to be a doctor.Racial quotas were not used to make admissions decisions.Minority applicants did not receive special treatment.Minority students with lower grades were admitted.help pls!!!! thanks in advance For a mass hanging from a spring, the maximum displacement the spring is stretched or compressed from its equilibrium position is its The area of the base of a trapezoid pyramid is (34ft squared) the pyramid is 12 inches tall. What is the volume of the pyramid envision a totem pole, Estimate the height of the totem pole in the front. How did you go about deciding how to estimate its own height. Use the points (0,60) and (4,90) from the line on the scatter plot What is the equation of the linear modal?1009080Test Score706000 1 2 3 4 5Time Studying (hours) Quin es la protagonista de esta biografa? (1 point)