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Nostrana [21]
3 years ago
14

Given 2 circles: One with a diameter of 20 cm and another with a 50 cm, find the difference between the 2 areas. Hint: area= pi

times radius squared: the radius is half the diameter
Mathematics
1 answer:
Lelu [443]3 years ago
6 0

Answer:

1648.5

Step-by-step explanation:

20cm radius - 10

50cm radius- 25

area = 3.14×10²

3.14×100

=314

area= 3.14× 25²

3.14×625

= 1962.5

1962.5

- 314

_________

1648.5

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Answer:

40

Step-by-step explanation:

here is a trig calculator

http://www.carbidedepot.com/formulas-trigright.asp

4 0
2 years ago
Please help me if u give me an answer could u also give me an explanation on why that’s the answer.
Setler79 [48]
So it’s A

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there is a rule that states this

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7 0
3 years ago
What is the surface area of this triangular prism rounded to the nearest tenth?
Eddi Din [679]

Answer:

answer its B

Step-by-step explanation:

4 0
3 years ago
How to put -3x(4-6x) in distributive property
Rashid [163]

Answer:

-12x+18x²

Step-by-step explanation:

Given: -3x(4-6x)

Distributive property of multiplication under which a number is multiplied by the sum of two number, the first number can be distributed to both of those number.

∴  -3x(4-6x)

solving it by using distributive property

= (-3x\times 4)-(-3x\times 6x)

= -(12x) + 18x^{2}

Opening parenthesis

=  -12x+18x^{2}

Hence, -12x+18x^{2} is the result after using distributive property.

3 0
2 years ago
Each box is shaped like a rectangular prism. Which has more more storage space? Explain. Show all your work.
V125BC [204]

Answer:

Box A

Step-by-step explanation:

Find the volume of each one:

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Box B: 3*4*5= 60

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Box A has more space because if we compare the volume with each box, you will find that box A has a greater volume, which means it has more space.

8 0
3 years ago
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