3 years ago

How to find volume,lateral area and total area?

1 answer:

4 0

lateral area is the faces not the bases,total area is the area if the whole shape and volume changes on what type of figure it is

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A water tank is in the shape of a right circular cylinder with a height of 20 feet and a volume 320π of cubic feet. What is the

8090 [49]

To solve for radius use the volume formula and solve for r.

V = πr²h
320π = πr²(20)
320π/π = 20r²
320 = 20r²
320/20 = r²
16 = r²
√16 = r
4 = r

Answer is D. 4 feet.

Hope this helps :)

7 0

4 years ago

Read 2 more answers

What is the surface area of a cone that has a radius of 8 feet and a slant height of 12 feet? (Use 3.14 for π.)

kodGreya [7K]

Answer:

Surface area of cone is $502.4\ ft^2$

Step-by-step explanation:

Given:

radius of a cone (r) = 8 feet

slant height of cone (l) = 12 feet

We need to find the surface area of cone.

Total surface area of cone = Area of circle $+$ Area of curved surface

Now we know that,

Area of circle = $\pi r^2$

Area of curved surface = $\pi rl$

Hence Total surface area of cone = $\pi r^2+\pi rl=\pi r(r+l) = 3.14 \times 8 (8+12)=3.14\times8\times20= 502.4 \ ft^2$

Surface area of cone is $502.4\ ft^2$ .

4 0

3 years ago

If e^(xy) = 2, then what is dy/dx at the point (1, ln2)?

love history [14]

E^(xy) = 2
(xdy/dx + y)e^(xy) = 0

At point (1, ln2), dy/dx + ln2 = 0
dy/dx = -ln2

3 0

3 years ago

Work out an estimate for the value of <br> 48.7 × 61.2/11.3

avanturin [10]

Answer:

$263.755$

Step-by-step explanation:

$48.7 \times 61.2 \div 11.3 \\ 2,980.44 \div 11.3 \\ = 263.755752$

hope this helps

brainliest appreciated

good luck! have a nice day!

4 0

3 years ago

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What time is 13 minutes before noon

marta [7]

Answer: 11:47

Step-by-step explanation:

6 0

3 years ago

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