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3 years ago

The radius of one sphere measures twice the length of another. The ratio of their surface areas is

Mathematics

2 answers:

Katena32 [7]3 years ago

6 0

Answer:

4:1

Step-by-step explanation:

Alex787 [66]3 years ago

4 0

4:1
Because the ratio of areas is the ratio of the radii (or diameters) squared.

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Vaselesa [24]

Answer:

5 hours

Step-by-step explanation:

75 + 55x = 350

75 - 75 + 55x = 350 - 75

55x = 275

$\frac{55x}{55} = \frac{275}{55}$

x = 5

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3 years ago

Simplify 2 (8r2+r)-4r

taurus [48]

16r^2+ 2r -4r 16r^2 - 2r 2r ( 8r -1)

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3 years ago

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A rectangle has a height of 6k3 and a width of 2k2 + 4k +5.

Trava [24]

Answer: $12k^5+24k^4+30k^3$

Step-by-step explanation:

Given : The height of the rectangle = $6k^3$

The width of the rectangle = $2k^2+4k+5$

Formula : Area = height x width

Therefore , the area of triangle in terms of polynomial will be :

$6k^3\times( 2k^2+4k+5)\\\\= 6k^3(2k^2)+6k^3(4k)+6k^3(5)\ \ [\text{Using Distributive property}]\\\\=12k^{3+2}+24k^{3+1}+30k^3\ \ [\text{Using exponents rule}:\ a^n\times a^m=a^{n+m}]\\\\=12k^5+24k^4+30k^3$

Hence, the area of the entire rectangle = $12k^5+24k^4+30k^3$

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4 years ago

Wendy wants to show people how medicines that doctors use now would have been helpful during the Civil War

Soloha48 [4]

Answer:

Step-by-step explanation:

Think about the question, you can't say that i am wong.

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3 years ago

Two consecutive numbers that equal 25?

erma4kov [3.2K]

12345678910111213

12 and 13 are consecutive numbers

12+13=25

hence, 12 and 13 are your answers

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3 years ago

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