All categories

4 years ago

A 9cm wife cross section pipe has a height of 13cm . What is the volume of the pipe

1 answer:

7 0

I think you meant "wide." :) Since it is a pipe, you should know that it is the shape of a cylinder. Therefore, the formula would be: πr^2h. Substitute the height for h. (π(4.5)^2(13). Since it's 9 cm wide total, divide it by 2 to get the radius (part of formula), which is 4.5 So multiply π times 4.5^2 (which equals 20.25) times 13. This all will equal 826.605. You can simplify this decimal to 827. Therefore, the volume is 827 cm^3.

You might be interested in

Eliminate the parameter t. Then use the rectangular equation to sketch the plane curve represented by the given parametric equat

____ [38]

Answer:

$9x^2+4y^2=36$

Step-by-step explanation:

We are given that

$x=2cos t$

$y=3 sin t$

$0\leq t\leq 2\pi$

$cost=\frac{x}{2}$

$sint=\frac{y}{3}$

$sin^2 t+cos^2 t=(\frac{x}{2})^2+(\frac{y}{3})^2$

$1=\frac{x^2}{4}+\frac{y^2}{9}$

By using the formula

$sin^2\theta+cos^2\theta=1$

$1=\frac{9x^2+4y^2}{36}$

$9x^2+4y^2=36$

4 0

3 years ago

Eight times the result of subtracting 3 from a number is equal to the number increased by 25. What is the number?

kykrilka [37]

Your answer should be 8(3-n)+25

7 0

3 years ago

The last time it placed an order for ingredients, Sweet Treats Bakery ordered 7,160 kilograms of sugar. This time, the bakery is

melomori [17]

Answer:

4296 kg

Step-by-step explanation:

40/100 = x/7160

716 times 6 is 4296

3 0

3 years ago

Pls help :: geometry summer assignment

Damm [24]

42/12 = 3.5, 63/18 = 3.5, therefore we will be multiplying the last time by 3.5. 40x3.5= 140, and therefore, the number of pencils produced in 40 seconds is 140

7 0

3 years ago

Read 2 more answers

If you are given a part-to-whole ratio, can you write part-to-part ratio? Explain

stealth61 [152]

There are 2 types of ratios: Part-to-Wholes, and Part-to-Part ratios.

Part-to-part ratios show the relationship between the two groups.

Lets say theres 10 fruits in a fruit bowl.

If you have 3 apples, and 7 oranges, then the ratio is 3:7 as the part-to-part ratio. But the part-to-whole ratio would be either 3:10 ( for apples) or 7:10 (for oranges)

8 0

4 years ago