A group of 7 students was asked, "How many hours did you watch television last week?" Here are their responses. 20,6,17,10,19,15,9 Find the mean number of hours for these students. If necessary, round your answer to the nearest tenth.

Answers

Answer 1

Answer: 13.71

Step-by-step explanation:

20+6+17+10+19+15+9=96

96/7=13.71


Related Questions

one thousand seven thousand,eight hundred ten number form.​

Answers

Answer:

one hundred seven thousand?

Step-by-step explanation:

107,810

How do you do this question?

Answers

Answer:

1) ∫₀¹ 2π x (x − x²) dx

4) ∫₀¹ π ((√y)² − y²) dy

Step-by-step explanation:

The solid formed is a hollow, upside down cone.  We can either use washer method or shell method to find the volume.

If we use washer method, the thickness of the washers is dy.  The outside radius is R = x₂ = √y, and the inside radius is r = x₁ = y.

Therefore, the volume of each washer is:

dV = π (R² − r²) t

dV = π ((√y)² − y²) dy

The total volume is the sum of all washers from y=0 to y=1.

V = ∫ dV

V = ∫₀¹ π ((√y)² − y²) dy

If we use shell method, the thickness of each shell is dx.  The radius of each shell is r = x.  The height of each shell is h = y₂ − y₁ = x − x².

Therefore, the volume of each shell is:

dV = 2π r h t

dV = 2π x (x − x²) dx

The total volume is the sum of all shells from x=0 to x=1.

V = ∫ dV

V = ∫₀¹ 2π x (x − x²) dx

The local reader's club has a set of 64 hardback books and a set of 24 paperbacks. Each set can be divided equally among the club members. What is the
greatest possible number of club members?
A. 6
B.192
C. 12
D. 8

Answers

24/8 = 3, 64/8 = 8
Therefore the answer is D. 8

Answer:

D

Step-by-step explanation:

Yw UVU

3193.55767741 round to the nearest thousand

Answers

Answer:

3000

Step-by-step explanation:

Rounding to the nearest thousand implies not writing any significant figure after the digit located in the column of the thousand. In this case, what you have in that column is the number 3 (which is followed by a 1 in the column of the hundreds) so you need to round the number to 3000.

If the number that followed the 3 was 5 or larger, you would have rounded it to 4000.

Answer:

3,000

Step-by-step explanation:

The answer is 3,000 because:

1) The number in the hundreds place is 1, which is less than 5. Therefore, the number in the thousands place stays the same.

2) Whenever you are rounding with decimals, you have to leave the numbers after the decimal point.

Hope this helps!

what is 360 x 4500 plsssssssssssssssss help

Answers

Answer:

1,620,000

Step-by-step explanation:

360×4500

=1,620,000

is the answer

Hey there!

[tex]Answer:\boxed{1,620,000}[/tex]

[tex]Explanation:[/tex]

[tex]360*4500[/tex]

Let's multiply to get our answer.

[tex]360*4500=1,620,000[/tex]

[tex]1,620,000[/tex]

Hope this helps!

in a survey of 23 college students it was found that 17 were taking an english class 10 were taking a math class and 8 were taking both english and math. how many students were talking a math only class?
a. 6
b. 14
c. 2
d. 4

Answers

Answer:

2

Step-by-step explanation:

out of 10 that were taking math 8 of them were also taking english. 10-8=2

A cylinder has a volume of 320x cubic inches and a height of 5 inches.
What is the radius of the cylinder?

Answers

Answer: 8 inches

Step-by-step explanation:

320π in³= π (r²) (5 in)

64 in² = r²

r = 8 in

A candy distributor needs to mix a 30% fat-content chocolate with a 40% fat-content chocolate to create 150 kilograms of a 32% fat-content chocolate. How many kilograms of each kind of chocolate must they use?

Answers

Answer:

120 kg of 30% fat-content chocolate and 30 kg of 40% fat-content chocolate.

Step-by-step explanation:

We are given that a candy distributor needs to mix a 30% fat-content chocolate with a 40% fat-content chocolate to create 150 kilograms of a 32% fat-content chocolate.

Let the amount of 30% fat-content chocolate be 'x' and the amount of 40% fat-content chocolate be 'y'.

So, according to the question;

x + y = 150 ------------ [equation 1]

and [tex]30\% \text{ of } x + 40\% \text{ of } y=32\% \text{ of } 150[/tex]

[tex]30x+40y= 32 \times 150[/tex]

[tex]30x+40\times (150-x)= 4800[/tex]

[tex]30x+6000-40x= 4800[/tex]

[tex]10x = 6000-4800[/tex]

[tex]x=\frac{1200}{10}[/tex]

x = 120 kg

Now, putting the value of x in equation 1, we get;

x + y = 150

120 + y = 150

y = 30 kg

Hence, 120 kg of 30% fat-content chocolate and 30 kg of 40% fat-content chocolate.

Laundry detergent comes in 2 sizes. Box A is $7.62 for 2.5 Litres, Box B is
$5.74 for 1.5 Litres. Which is the better deal and by how much?

Answers

Answer:

$7.25 = 2.5, so divide by 7.25 by 5 = 1.45 <- better deal & $0.46333333333 per litre.

5.74 = 1.5, so divide 5.74 by 3 = 1.91333333333

Step-by-step explanation:

Why 3 and 5 - 0.5 is 5 times 2.5 and so is 0.5 times 3= 1.5

1.91333333333 - 1.45 = $0.46333333333 per litre.

The region between the graphs of X = y2 and X = 5y is rotated around the line y=5. The volume of the resulting solid is_________.

Answers

Answer and Step-by-step explanation:

The volume of the resulting solid is shown below:-

The lines in for

y can be y = sqrt(x) using square root

and y = x ÷ 5

In this, the intersect is done when sqrt(x) = x ÷ 5  using square root

Now

x = x^2 ÷ 25

x = 0

or

x = 25

so outermost is x ÷ 5 innermost is sqrt(x)  using square root

Therefore A is

= integral of pi ( (x ÷ 5-5)^2 - (sqrt(x)-5)^2)  using square root

from 0 to 25

= 625 pi ÷ 6

Find PUR, given the following sets:
P = {b, d, f, g}
Q = {a, b, c, d]
R = {c, e, f, g}
S = {a, d. g}

Answers

Answer:

={b,c,d,e,f,g}

Step-by-step explanation:

={b,c,d,e,f,g}

Answer:

PUR= b, d, f, g, c, e

Step-by-step explanation:

To fid the answer you unite the sets together. When uniting the sets you only write the letter once even if it appears in both sets.

So when we combine p and r the answer we get is:

PUR= b, d, f, g, c, e

HOPE IT HELPED

{x|x is a living U.S. president born after 1700}

Answers

Answer: I HOPE IT HELPS

was the tenth president of the United States ... President Harrison died just one month after taking office, and Tyler became the ... John Tyler was born on March 29, 1790; like his future running mate, William ... Tyler was of frail health, thin and prone to diarrhea throughout life.

Step-by-step explanation:

x + 4 = 13 simple equations​

Answers

Answer:

9

Step-by-step explanation:

13-4=9

9+4=13

Hey there!☺

[tex]Answer:\boxed{x=9}[/tex]

[tex]Explanation:[/tex]

[tex]x+4=13[/tex]

To find x, subtract 13 by 4.

[tex]13-4=9[/tex]

Let's try substituting 9 for x to see if we get 13.

[tex]x+4=13\\9+4=13[/tex]

[tex]x=9[/tex]

Hope this helps!

which equation represents a line that passes through (2,-1/2) and has a slope of 3


plzzz help me

Answers

Answer:

C

Step-by-step explanation:

The slope-point formula is  y-y₁=m(x-x₁). So if you plug in your information you get C.

Suppose (-6,- 1) is a point on the graph of y=g(x).
(a) What point is on the graph of y = g(x+4)-5?
(b) What point is on the graph of y= - 49(x-7)+4?
(c) What point is on the graph of y = g(4x + 2)?
(a) What point is on the graph of y = g(x + 4) - 5?

Answers

A- (-1,3)
B- (39,-8)
C- (-6,-2)

(5^3)(5^2)(5^4)(5^7)
Answer choices
625^16
5^168
625^168
5^16

Answers

Answer: 5^16

Multiply the terms with the same base by adding their exponents
5^3+2+4+7

Calculate the sum of the positive numbers
and you get 5^16

Hope this helps ʕ•ᴥ•ʔ

What is the solution to 10(3x−5)=−20

Answers

Answer:

x = 1

Step-by-step explanation:

Apply the distributive property. It should now look like this:                  30x - 50 = -20Add 50 to each side, so it now looks like this: 30x = 30Divide each side by 30 to cancel out the 30 next to x. It should now look like this: x = 1

I hope this helps!


State the size of angle OAB, giving a reason for your answer

Answers

Answer:

Angle OAB = 90°

Reason: tangent theorem of a circle

Step-by-step explanation:

The diagram given shows a tangent line of the given circle with center O. The tangent touches the circle at point A.

The diagram also shows the radius of the circle, OA, drawn from the center to the circle to meet at the point of tangency.

Thus, according to the Tangent Theorem of a circle, the point at which the radius drawn from the center meets the point of tangency = 90°. The tangent is perdendicular to the radius drawn to meet at the point of tangency.

Therefore, angle OAB = 90°

help me please this means a lot to my grade

Answers

Answer:

Step-by-step explanation:

You know that lines PQ and RS are parallel and line XY is a transverse line. This means that XMP and QMN are equal because they are vertical angles. Now set the equations equal to each other because they are.

10x-7=6x+21 and solve for x

4x-7=21

4x=28

x=7 boom

From the drawing above, Bryan discovered that his area was 2 less than
Jon's area. What is the reasonable value of x?

Answers

Answer:

1

Step-by-step explanation:

Please help, I don't understand, please
5+(-5)

Answers

Answer: 0

Step-by-step explanation: To make this easier, ignore the addition sign (for this one, at least), so just do 5-5

Answer: 0

Step-by-step explanation:

There are 266 basketball fans who plan to go to a game. How many buses will be needed, given that each bus can hold 31 fans? Division and rounding required of whole numbers.

Answers

Exact answer: 8.5

Rounded Answer: 9

You take your car to an auto repair shop. The charge for repairs is $48 per hour plus the cost of parts. If
the car needs new parts that cost $256 and the final bill was $616, then how long did it take to repair the
car?

Answers

It took 7.5 hours to repair the car.
Steps: You subtract 256 from 616: 616 - 256 = 360. Then, you divide 48 from 360 and get 7.5. Hope this helps.

Answer:

7.5 Hours

Step-by-step explanation:

48x + 256 = 616

      - 256 = -256

-----------------------------------

48x =  360 divide both side by 48

-----     -------

48        48

x = 7.5

This week Kent worked 15 hours at 12.50 an hour his paycheck including his commission

Answers

Answer:

$187.5

Step-by-step explanation:

if he worked for 15 hours at $12.50 an hour he would have made $187.5

Answer:

187.50

Step-by-step explanation:

Suppose PR = 54, solve for QR

Answers

We will use the segment addition postulate.

PQ + QR = PR

4x - 1 + 3x - 1 = 54

7x - 2 = 54

7x = 56

x = 8

So QR is 3(8) - 1 or 24 - 1 which is 23.

Answer:

QR is 23

Step-by-step explanation:

PR = 54 Which means:(4x-1)+(3x-1)=54We can solve for x to find what QR is:7x-2 =54 7x=56x=8Plug in x for QR equation:3(8)-1 = 24-1=2323 is the answer

You want to get an idea of how much your children will benefit from the education system in a state. Which column of numbers will you use for your analysis? Why?

Answers

use the Per-Pupil Expenditure column to compare how much each state spends on average for each student. Total expenditure for the state can be misleading. A state with a high number of students could have a high overall expenditure, even if it doesn't spend very much on each student. I'm more concerned about how much the state is likely to spend on each of my children, not how much they spend overall.

Step-by-step explanation:

Answer:

I'd use the Per-Pupil Expenditure column to compare how much each state spends on average for each student. Total expenditure for the state can be misleading. A state with a high number of students could have a high overall expenditure, even if it doesn't spend very much on each student. I'm more concerned about how much the state is likely to spend on each of my children, not how much they spend overall.

-PLATO

Solve for all possible values of x.
Vx+7-11=2
Ox= 6
O x = 20
Ox= 162
Ox = 169

Answers

x=6. 6+7=13 13-11=2

Introduction to interval notation

What is the domain and range?

Answers

Answer:

1,7

Step-by-step explanation:

you go up one and over seven and i'll be on the other point

Solve 5x + 2 = 3x -8

Answers

Step-by-step explanation:

5x-3x=-8-2

2x=-10

x=-10/2

x=-5

Answer: x=-5

Step-by-step explanation:

Given

5x + 2=3x -8

Subtract 2 on both sides

5x + 2 - 2=3x - 8 - 2

5x=3x-10

Subtract 3x on both sides

5x - 3x=3x - 10 -3x

2x=-10

Divide 2 on both sides

2x / 2=-10 / 2

x=-5

i have trouble dividing​

Answers

Answer:

I'm Sorry, do you have a question you need help with?

Step-by-step explanation:

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