MATHEMATICS MIDDLE SCHOOL

A cone has a diameter of 30 in. and a slant height of 17 in.What is the approximate volume of the cone? Use 3.14 to approximate the value of PI.
Round your answer to the nearest tenth, if necessary.
A cone has a diameter of 30 in. and a - 1

Answers

Answer 1
Answer: Use the given formula :

V=\frac{1}3\pi r^2h=\frac{1}3\pi (\frac{D}2)^2h where D is the diameter.

By Pythagoras, h=√(17^2-(30/2)^2)=8\text{ in}

Hence V\approx\frac{3.14}3*15^2*8=\boxed{1884.0\text{ in}^3}

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A brand of crackers is sold in a box shaped like a rectangular prism. The box has a length of 12 cm, a width of 9 cm and a height of 23 cm. What is the volume of the box of crackers?A. 1182 cm cubed B. 4761 cm cubed C. 2484 cm cubed D. 972 cm cubed
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Can someone help me asap please, i've beens stuck for the longest.What is the length of stack BC with bar on top ? Round to the nearest tenth of a unit.



A.
3.5 units

B.
4.9 units

C.
8.6 units

D.
15.0 units

Answers

c. 8.6 units because if you use the Pythagorean thereom and square the bottom side and the left side and add them, you get the square root of 74 which is 8.6023.... and you round it too 8.6
your answer is 8.6 otherwise: C and do you go to a virtual school named k12?

candice bought 3 shirts. Each shirt cost the same amount and was discounted by 3.66. Candice paid a total of 62.31 before tax. How much did each shirt cost before the discount?

Answers

Just divide 62.31 by three. The subtract the number you get by 3.66. That should be your answer.
$62.31 ÷ 3 = $20.77

$20.77 + $3.66 = $24.43

The answer us $24.43

Help please!! please answer ASAP... I NEED HELP...
i feel soo dumb...

Answers

Answer:

dont say you feel dumb we all need help

Step-by-step explanation:

Answer: 15.71 is it when using 3.14 as the pi substitute

Step-by-step explanation:

The arc is simply the length of its portion of a circumference. Because its half of a circle, we can just find the circumference of the circle and divide it by 2.

C = 2 * 3.14 * radius/2 (because semi circle)

= 15.71

I need help:Sarah has red, green and blue t-shirts.

2/3 of all t shirts are red

1/3 of all t shirts are green

What fraction of all t shirts are blue?

Answers

Answer:

8 green tshirts

Step-by-step explanation:

this is monomial x polynomial, I need to write an expression with the picture above in simplest form.​

Answers

Answer:

2x(6x+1)

big rectangle - small rectangle = shaded region

Suppose it took 19 riders a total of 11 days 21 hours to ride from St. Joseph to Sacramento. If they all rode the same number of hours, how many hours did each rider ride?

Answers

Answer:

The number of hours each riders ride = 15 hours.

Step-by-step explanation:

19 riders = 11 days 21 hours to ride from St.Joseph to Sacramento

Let's find the number of hours taken.

1 day = 24 hours.

11 days = 11 times 24 = 264 hours

So, 11 days 21 hours = 264 + 21 = 285 hours

19 riders rode the same number of hours.

To find the each rider ride, we need to divide 285 by 19.

The number of hours each rider ride = (285)/(19) = 15 hours.
I’m not sure if I’m right but I tried.First I multiplied 11 times 24,because there's 24 hours in a day,then I got 264. So then I added 21 hours more to it, so then I got 285.So then I divided 285 out of 19,since there is 19 riders, and I got 15. So 15 might be the answer to the problem. (But I’m still not sure, atleast I tried right?)   
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PLEASE HELP I GIVE THANKS