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3 years ago

A,(a+b)×(a+b)

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

3 0

Answer:

a)a^2+2ab+b^2

b)a^2-b^2

c)a^2-b^2

d)a^3+3a^2b+3ab^2+b^3

e)a3-3a^2b+3ab^2-b^3

f)(a^3+b^3)

g)(a^3-b^3)

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Svetach [21]

Answer:

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Step-by-step explanation:

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3 years ago

-4/3,4/9,-4/27,4/81,-4/243...<br><br> what is the common ratio! HELP ASAP

kaheart [24]

Answer: The common ratio is -1/3

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Work Shown:

Pick any term to divide it by the previous term. I'm going to pick the second term and divide it by the first term.

r = common ratio
r = (term 2) divided by (term 1)
r = (4/9) divided by (-4/3)
r = (4/9) * (-3/4)
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3 years ago

The circumference of ruby's old swimming pool is 47.1 feet. Her new swimming pool has a diameter of 21 feet. How much larger is

Alla [95]

The new pool is 18.84 feet larger in circumference than the old one.

<u>Explanation:</u>

Given:

Circumference of the pool = 47.1 feet

Diameter of the new pool, d = 21 feet

radius, r = 21/2 feet

Circumference of the new pool = ?

We know:

Circumference = 2πr

where,

r is the radius

On substituting the value:

C = $2 X 3.14 X \frac{21}{2}$

C = 65.94 feet

The difference in circumference of the two pools = 65.94 - 47.1 feet

= 18.84 feet

Therefore, the new pool is 18.84 feet larger in circumference than the old one.

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3 years ago