2 years ago

I need to know this by today

Mathematics

1 answer:

lys-0071 [83]2 years ago

4 0

Sorry but I can't see the answer..

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A silo is formed by a cylinder with a hemisphere at the top. If the height of the silo is 10 m and the radius is 3 m, what is th

IrinaVladis [17]

V=282.74m³

Radius= 3m
Height= 10m

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2 years ago

The length of a rectangle is 3 inches more that its width. The perimeter of the rectangle is at least 30 inches. Which inequalit

Nutka1998 [239]

Perimeter of a rectangle: 2(l + w)

2(l + w) ≥ 30 in


Simplify- divide both sides by 2.

l + w ≥ 15 in

Substitute (w + 3) into l so only 1 variable is used.

(w + 3) + w ≥ 15 in

Simplify further- add variables and subtract 3 from both sides.

2w ≥ 12 in

Divide both sides by 2.

w ≥ 6 in

Answer: D

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2 years ago

(2.5×10−8)(9×10−10) Express your answer in scientific notation.

Lunna [17]

Answer: 2.25x $10^{-17}$

Scientific notation is used in science because the number can be vary from so much that using decimal is making it hard. The number expressed in $10^{x}$ form. Both number in the question is already in scientific notation. Then to multiply the number and keep it at scienfitic notation the calculation should be:

2.5 x $10^{-8}$ x 9 x $10^{-10}$ = 22.5 x $10^{-18}$ = 2.25x $10^{-17}$

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2 years ago

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Find the length of the altitude a. I need help ASAP.

Mashutka [201]

Answer:

Step-by-step explanation:

sin38=a/14

a=14(sin38)

a=8.61926

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2 years ago