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2 years ago

Find the product.

Mathematics

2 answers:

notsponge [240]2 years ago

8 0

Answer:

A) 4n²- 4

Step-by-step explanation:

use the FOIL method:

F = first, meaning multiply the 1st terms in each factor

O = outer, meaning multiply the 1st term in first factor and last term in second

I = inner, meaning multiply the 2nd term in first factor and 1st term in second

L = last, meaning multiply the last terms in each factor

F = 2n · 2n = 4n²

O = 2n(-2) = -4n

I = 2(2n) = 4n

L = 2(-2) = -4

you have 4n² - 4n + 4n - 4

this can be simplified by adding the two middle terms (which will zero out):

4n²- 4

Harrizon [31]2 years ago

5 0

$(2n+2)(2n-2)\\\\=(2n)^2 -2^2 ~~~~~~;[a^2 -b^2 =(a-b)(a+b)]\\\\=4n^2 -4$

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Read 2 more answers

Solve: 2cos(x)-square root 3=0 for 0 less than x less than 2 pi

Leona [35]

Answer:

The general solution of $cos x = cos(\frac{\pi }{6})$ is

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Step-by-step explanation:

Explanation:-

Given equation is

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Dividing '2' on both sides, we get

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General solution of cos θ = cos ∝ is θ = 2nπ±∝

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x = 2nπ± $\frac{\pi }{6}$

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$x = 2\pi +\frac{\pi }{6} = \frac{13\pi }{6}$

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put n=2

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And so on

But given 0 < x< 2π

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3 years ago

cylinder A has a radius of 6 centimeters cylinder B has the same height and a radius half as long as cylinder A what fraction of

REY [17]

Volume of a cylinder=the area of the base multiply the height
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Cylinder B's volume: pi*3*3*h=9*pi*h
so the fraction is 9/36=1/4

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3 years ago