Answers
Answer:
A
Step-by-step explanation:
Related Questions
What is the probability of choosing a clubs or a numbered card from a deck of cards? Type your answer as a fraction.
Answers
Answer:
13/52
Step-by-step explanation:
College Math! Pls help
Answers
Answer:
right: 11.15
left: 17.15
Step-by-step explanation:
right formula: [tex]\int _a^bf\left(x\right)dx\:\approx \Delta \:x\left(f\left(x_1\right)+f\left(x_2\right)+...+f\left(x_n\right)\right)[/tex]
left formula: [tex]\int _a^bf\left(x\right)dx\:\approx \Delta \:x\left(f\left(x_0\right)+f\left(x_1\right)+...+f\left(x_{n-1}\right)\right),[/tex]
[tex]\Delta \:x\:=\:\frac{b-a}{n}[/tex]
estimating : [tex]\int _1^7\left(\frac{7}{x}\right)dx[/tex] , with n = 6 (number of sub-intervals in Riemann sum)
right: 1 [tex]\left(f\left(x_1\right)+f\left(x_2\right)+f\left(x_3\right)+f\left(x_4\right)+f\left(x_5\right)+f\left(x_6\right)\right)[/tex] =[tex]1\cdot \left(\frac{7}{2}+\frac{7}{3}+\frac{7}{4}+\frac{7}{5}+\frac{7}{6}+1\right)[/tex] = 11.5
left: [tex]1\cdot \left(f\left(x_0\right)+f\left(x_1\right)+f\left(x_2\right)+f\left(x_3\right)+f\left(x_4\right)+f\left(x_5\right)\right)[/tex] =
[tex]1\cdot \left(7+\frac{7}{2}+\frac{7}{3}+\frac{7}{4}+\frac{7}{5}+\frac{7}{6}\right)[/tex] = 17.15
The first digits of data entries in most real-world data sets are not uniformly distributed. The most common first digit is 1, followed by 2, and so on, with 9 being the least common first digit. This phenomenon is known as Benford's Law.
The table below is the probability distribution for Benford's Law where the random variable D represents the first digit in a data entry.
What is the probability that a randomly selected data entry has a first digit greater than 7?
Answers
According to the given data,
Probability of D1 = 0.301Probability of D2 = 0.176By adding the probabilities, we get
→ [tex]P (D \leq = 2) = 0.301+0.176[/tex]
[tex]= 0.477[/tex]
Thus the response above is appropriate.
Learn more about probability here:
https://brainly.com/question/16790640
Answer:
0.097
Step-by-step explanation:
1) "First digit greater than 7" means that the first digit is 8 or 9.
2) P(first digit greater than 7)=0.051+0.046=0.097
3) 0.097
write 770000 and round it to the nerest lakh
Answers
Step-by-step explanation:
Seven lakh and seventy thousand.
This is your answer.
Which group shows 0.25 of the faces smiling?
Answers
Answer:
My dude the groul that shows that tiny bit of smiling must be the beatles or backstreet boys
How many 5/6 s are in 3?
Answers
Step-by-step explanation:
If we think over it, we could recognise that this question is like
How many 3's are in 6?
Probably the answer is
2
, as
6
÷
3
=
2
So, we divide
1
by
5
6
→
1
÷
5
6
→
1
⋅
6
5
→
6
5
⇒
1
1
5
=
1.2
So, there are
1
1
5
number of
5
6
's in
1
Answer:
3/(5/6)
Step-by-step explanation:
multiply the numerator and denominator by 6
18/5
Solve for the letter d
Answers
Answer:
34 I am pretty sure
Step-by-step explanation:
34+55 well is 89 so yeah d=34
What you have to do is put 89 on the other side with 55 so 55-89=-34 so -34=d
How many bananas are there in B ?
Answers
Answer:
there are 35 bananas in B
Step-by-step explanation:
There are 16 bana
FIRST TO ANSWER GETS BRALYIST
good luck :-)
Answers
Answer:
My answer is 20ft I'm not really sure but hope this helps
WILL MARK BRAINLEST
PLS SHOW STEP BY STEP
Answers
Answer:
[tex]\frac{225}{30}[/tex] or [tex]7\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]\frac{25*9}{3*10} = \frac{225}{30}[/tex]
hope this helped
sorry if im too late lol
a man diposited 80000 in a bank for 2 years at 10% per annum. after one year policy of bank change
Answers
Answer:
if you help me ill help you
Step-by-step explanation:
Carmen's father is 28 years older than her and 3 years ago he was 5 times her age. What are their ages?
brendan has $200 in a saving account with a 1% interest rate. using the formula for simple interest, how much will he earn in interest after 7 years?
Answers
answer:
$14
step-by-step explanation:
the formula for simple interest is-
i=prt
meaning interest=principal (the starting amount of money) * rate * time
=200*0.01*7
(we have to turn 1% into a decimal so 1/100=0.01)
=14
i=14
good luck :)
i hope this helps
brainliest would be highly appreciated
have a nice day!
After 7 years and a 1% interest rate, Brendan will have a total of 214$.
What is simple interest?
Simple interest is calculated based on a loan's principal or the initial deposit into a savings account. Simple interest doesn't compound, therefore a creditor will only charge interest on the principal sum, and a borrower will never be required to pay further interest on the interest that has already accrued.
Given, Brendan has $200 in a saving account with a 1% interest rate.
The simple interest is given as
Interest = (PRT/100)
where
P = Amount deposited = 2,00
R = Rate = 1%
T= Time = 7 years
Interest = (PRT/100)
Interest = (200 × 7 × 1/100)
Interest = 14
Total amount = SI + principal amount
Total amount = 14 + 200 = 214
Therefore, Brendan will have 214 $ after 7 years and a 1% interest rate.
Learn more about simple interests here:
https://brainly.com/question/29210957
#SPJ6
if the ordered pairs graphed are all equivalent ratios, what ordered pair is missing?
A) (9,11)
B) (9,12)
C) (9,15)
D) (9,18)
Answers
Answer:
C) (9,15)
Step-by-step explanation:
1) For each dot you go right 3 up 5 to get to the next dot.
2) right 3 up 5 from (6, 10) would be (9,15)
Answer:
C) (9,15)Step-by-step explanation:
For x- coordinate we have:
3, 6, x, 12 ⇒ x = 9For y-coordinate we have:
5, 10, y, 20 ⇒ y = 15Missing point is (9, 15)
Correct choice is C
In a litter of 8 puppies, suppose there are 2 brown females, 2 brown males, 1 spotted female, and 3 spotted males. If a puppy is randomly selected, what is the probability of selecting a female or a brown puppy?
Answers
Answer:
spotted male
Step-by-step explanation:
if you look at the numbers then you will see that this one has the biggest number
10 ft 8 ft Find the area of this figure. Round your answer to the nearest hundredth. Use 3.14 to approximate pie
Answers
Answer:
10ft · (8ft) = 80 [tex]f^ {2} t^{2}[/tex]
3.14 = 80 [tex]f^{2} t^{2}[/tex]
Step-by-step explanation:
I mean as how many minutes are there in 11 a.m
Answers
Answer: Hewo, there! your answer is Below
There are 60 mins In 11 a.m And every hour
Step-by-step explanation:
You can easily convert 1 hour into minutes using each unit definition:
Hour
hour = 60 min = 3600 s
Minutes
minute = 60 s = 60 s
Hope this helps you!!
Have a great day!!
Answer:
their are 60 minutes in 11 am
A movie complex is showing the same movie in three theaters. In theater A, 56 of the 80 seats are taken. In theater B, seats are taken and seats are empty. In theater C, of the seats are empty. Which theater has the greatest percent of its seats taken?
Also, I need this ASAP.
Answers
Answer:
Theatre A has the greatest percent
What is the area of the kite 10 12 12 18
Answers
q so it’s 18
That is the answe
QUICK ITS TIMED WILL GIVE BRAINLYIST
Which measurements are in the correct order from largest to smallest?
A. quart, pint, cup, fluid ounce
B. gallon, quart, cup, pint
C. gallon, pint, quart, cup
D. gallon, cup, fluid ounce, quart
Answers
Hope it helps!!!!!!
Which expression is equivalent to 10x2 - (2 – 3x) + (5x - 3x2)?
Answers
=7x^ + 2x - 2
Answer:
H) 7x² + 8x - 2
Step-by-step explanation:
write 770000 and round it to the nerest lakh
Answers
Answer:
8 lakhs = 8,00,000
Step-by-step explanation:
770000
=> 7,70,000
=> 7.7 lakhs
7.7 lakh rounded to the nearest lakh = 8 lakhs and it is Rounded Up
Hope it helps :)
Find XS, VY, and YZ. I am very confused on what to do.
Answers
Answer:
Do you see the lines and how they are named? I am going to try and explain this in less words than I can. Where it says XS you have to match it up with the lines. But if it says that you have to find XSU (which it does not) you would have to go up all the way but you stop where it says the S so you wont go all the way up to the U. I hope this helps!
One-third of the candidates for a job were 25 years old or younger. Two-sevenths of the candidates were at least 50 years old. If 84 people applied for the job, how many were between 25 and 50?
Answers
Answer:
1/3 * 84 = 28 were under 25
2/7 * 84 = 24 were at least 50
28 + 24 = 52
84-52 = 32 were between 25 and 50
Step-by-step explanation:
construct a rectangle (a and b of known length, d diagonal)
Answers
The graph shows the amount of money that Janice saves each week from her summer job. which equation best represents the graph
Answers
Answer:
y = 100x + 200
Step-by-step explanation:
I REALLY NEED HELP IN THIS
Answers
Answer:
150°
Step-by-step explanation:
We know each angle in a equilateral triangle is 60° and that of a rectangle is 90° . So ,
[tex]\implies \angle ABC = \angle DBC + \angle ABD \\\\\implies \angle ABC = 90^o + 60^o \\\\\implies \boxed{\boxed{ \angle ABC = 150^o }}[/tex]
Pls help me, it is so proooooooooooooooooooooo
Answers
Answer:
hi
Step-by-step explanation:
i think it is A
because
[tex] \frac{x}{3} + 10 = \frac{15}{3} + 10 = 5 + 10 = 15[/tex]
hope it helps
have a nice day
Answer:
answer is A and C
hope it helps
PLEASE HELP
will mark brainliest
These figures are congruent. What series of transformations moves
quadrilateral FGHI onto quadrilateral F'G'HT?
Note: Rotations are clockwise. Reflections are over the x-or y-axis.
A. Reflection, reflection
B. Rotation, translation
C. Translation, reflection
D. Reflection, rotation
Answers
Answer:
wait nvm I did the wrong answer lemme re check
Ok sorry I reviewed it and i think its D i looked to fast and got confused sorry
Answer:
Its C Translation,reflection
Step-by-step explanation:
I took the test and this was the right answer!!
HELP WILL GIVE BRANLIEST
Answers
Answer:
the answer is b
Step-by-step explanation:
Answer:
Last Choice
Step-by-step explanation:
No time to explain I am 100 % sure its correct i had same problem
The standard gasoline engine for the 2017 Toyota Corolla includes the following data: Configuration: In-line four-stroke, four-cylinder engine Bore: 3.17 in Stroke: 3.48 in Compression ratio: 10.6:1 Assuming an ideal Otto cycle to describe this engine. Consider the working fluid to be air, modeled as an ideal gas with variable specific heat. Determine: (a) The total engine volume VBDC for all cylinders (cu.in). (b) The mass of air (lbm) contained in the engine assuming ambient conditions of 540 R and 14.7 psia. (c) The efficiency of the engine (%). The maximum temperature that occurs during the cycle is 3600 R.
Answers
Answer:
a) The total engine volume is 30.3265 in³
b) the mass of air contained in the engine is 0.00129 lbm
c) The efficiency of the engine is 55.6%
Step-by-step explanation:
Given the data in the question;
The configuration is in line with four-stroke, four-cylinder engine.
Bore ( d ) = 3.17 in
Stroke ( L ) = 3.48 in
compression ratio ( r ) = 10.6 : 1
First, we calculate the swept Volume V₁ = π/4 × d²L
we substitute
V₁ = π/4 × (3.17 )² × (3.48) = 27.4655 in³
Now, Compression Ration; r = Vs + Vc / Vc
r = (V₁ + V₂) / V₂
we substitute
10.6 = (27.4655 + V₂) / V₂
10.6V₂ = 27.4655 + V₂
10.6V₂ - V₂ = 27.4655
9.6V₂ = 27.4655
V₂ = 2.861 in³
So
a) total engine volume
[tex]V_{BDC[/tex] = V₁ + V₂
we substitute
[tex]V_{BDC[/tex] = 27.4655 in³ + 2.861 in³
[tex]V_{BDC[/tex] = 27.4655 in³ + 2.861 in³
[tex]V_{BDC[/tex] = 30.3265 in³
Therefore, The total engine volume is 30.3265 in³
b) The mass of air
given that; T = 540°R, P = 14.7 psia
we know that; PV = mRT { R is constant }
we solve for m
m = PV / RT
we substitute
m = (14.7 × 30.3265) / ( 0.3704 × 1728 )540
m = 445.79955 / 345627.648
m = 0.00129 lbm
Therefore, the mass of air contained in the engine is 0.00129 lbm
c) The efficiency
from table { properties of air}
At 540°R; u₁ = 92.04 BTu/lbm, u[tex]_r[/tex]₁ = 144.32
Now process 1 - 2 ( Isentropic ) u[tex]_r[/tex]₁ / u[tex]_r[/tex]₂ = V₁/V₁ = r
so, u[tex]_r[/tex]₁ / u[tex]_r[/tex]₂ = r
144.32 / u[tex]_r[/tex]₂ = 10.6
u[tex]_r[/tex]₂ = 144.32/10.6
u[tex]_r[/tex]₂ = 13.61
Thus, at u[tex]_r[/tex]₂ = 13.61, u₂ = 235 BTU/lbm, T₂ = 1340°R
Now, we know that;
P₁V₁/T₁ = P₂V₂/T₂ ⇒ (P₁/V₁)r = P₂/T₂
⇒ ( 14.7 / 540 )10.6 = P₂/1340
P₂ = 386.664 psia
process 2 - 3; constant volume heat addition;
Now, At T₃ = 3600°R, u₃ = 721.44 BTU/lbm, u[tex]_r[/tex]₃ = 0.6449
so, [tex]q_{in[/tex] = u₃ - u₂
we substitute
so, [tex]q_{in[/tex] = 721.44 - 235 = 486.44 BTU/lbm
Next, process 3 - 4; Isentropic
u[tex]_r[/tex]₄/u[tex]_r[/tex]₃ = V₄/V₃ = r
u[tex]_r[/tex]₄ / 0.6449 = 10.6
u[tex]_r[/tex]₄ = 6.8359
At u[tex]_r[/tex]₄ = 6.8359; u₄ = 308 BTU/lbm
∴
Heat Rejection [tex]q_{out[/tex] = u₄ - u₁ = 308 - 92.04 = 215.96 BTU/lbm
so, [tex]W_{net[/tex] = [tex]q_{in[/tex] - [tex]q_{out[/tex]
[tex]W_{net[/tex] = 486.44 - 215.96
[tex]W_{net[/tex] = 270.48 BTU/lbm
so the efficiency; η[tex]_{thermal[/tex] = ([tex]W_{net[/tex] / [tex]q_{in[/tex] ) × 100%
η[tex]_{thermal[/tex] = ( 270.48 / 486.44 ) × 100%
η[tex]_{thermal[/tex] = ( 0.55604 ) × 100%
η[tex]_{thermal[/tex] = 55.6%
Therefore, The efficiency of the engine is 55.6%