calculate the volume of a cylinder whose height is (2x-5) inches and whose base has a radius of (x-5) inches round your answer to the nearest tenth of a cubic inch

Answers

Answer 1

Answer: v=(1/3)hpir^2
aprox pi to 3.14 fo this problem
v=(1/3)(2x-5)(3.14)(x-5)^2
v=(1/3)(2x-5)(3.14)(x^2-10x+25)
v=(1/3)(3.14)(2x^3-25x^2+100x-125)
v=(1/3)( $6.28x^(3)-78.5x^(2)+314x-392.5$ )
v= $(6.28x^(3)-78.5x^(2)+314x-392.5)/(3)$
and since we don't know what x,height, or radius or diameter or surface area or anything about the cylinder, we can't solve

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Solve the system of equations .y = -14x - 20y = x2 - 4x + 5
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Ryans living room is 10 feet wide, 12 feet long, and 10 feet high. If one gallon of paint covers 400 square feet of surface area, how many gallons of paint would Ryan need to paint all four walls and the ceiling? Please help.

What is the standard form of the equation of the circle in the graph

Answers

When an equation of circle is expressed in the form:

(x-h)^2 + (y-k)^2 = r^2

(h, k) is the center and r is the radius.

The center = the coordinate you have plotted on the graph.

Radius = how many units long the circle extends to.

SO, let's plug this in.

Coordinate plotted = (0, -4)

0 = h

-4 = k

(x - {0})^2 + (y - {-4})^2 = 2^2

(x - 0)^2 + (y + 4)^2 = 4

(whenever we have two negative signs next to each other, it turns the digit to the right of the final negative sign positive.)

Now we are left with this final equation as a solution:

x^2 + (y + 4)^2 = 4.

I hope this helped~!

The standard form of a circle:

$(x-h)^2+(y-k)^2=r^2$

$(h;\ k)$ - the coordinates of a center of a circle

$r$ - the radius

We have:

the center: $(0;\ -4)$

the radius: $r=2$

substitute

$(x-0)^2+(y-(-4))^2=2^2\n\nx^2+(y+4)^2=4$

The woods behind adam house went 2 miles wide and 5 miles long . what is the perimeter

Answers

you have to do 2 + 2 and 5 + 5 to get the answer. 2+2+5+5 = 14. the perimeter is 14 miles long

The answer will be 14.

In order to get that answer you must add 2 twice (2+2) and 5 twice (5+5). Once you do that you add 4 and 10 which will give you 14.

Hope it Helps :]

What's 13/15 as a recurring decimal? Also I need working out

Answers

Hey there, a recurring decimal is a decimal that repeats. For example, 0.666 is a recurring decimal. 13/15=0.8666 repeating. Therefore, 0.8666 repeating is a recurring decimal.

Cindy has printed 45 pages. Each page has 18 stickers. she will cut apart the tickets on each page . How may tickets will Cindy have in all.

Answers

Answer:

810 stickers.

Step-by-step explanation:

Since there are 18 stickers per page, we need to use multiplication to calulate how many stickers we have total.

Our problem is 45*18, since we have 45 pages, each with 18 stickers.

45*18=810

Cindy has 810 stickers in all.

Hope this helps!

Answer:

She'll have 810

Step-by-step explanation:

45x 18= 810

Hope this hlped :)

What is the sum of the series?
S (-5k +20)
13

Answers

Answer:

- 10

Step-by-step explanation:

Substitute k = 3, 4, 5, 6 into the expression and sum the terms, that is

(- 15 + 20) + (- 20 + 20) + (- 25 + 20) + (- 30 + 20)

= 5 + 0 - 5 - 10

= - 10

justin has a bag with 12 blue marbles 6 green marbles 8 purple marbles and 4 red marbles if she wants a probability of picking a blue marble to be 50% what should Justin do

Answers

There are many answers to this, but one answer might be to take away 6 of the other colors. This is because if 12 marbles are to equal 50%, we need the other side to have the same amount of marbles as the blue. And since the other color marbles add up to 18 and not 12, we need to take away six of the other colored marbles to make it 12.
I hope I helped, and if you need more information, please feel free to tell me! :D

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