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3 years ago

What is the length of the unknown side in the triangle to the right? (C)Hypotenuse= 25 (B)=Unknown (A)=15

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

8 0

Answer:

<em>Subtract 225 from both sides. You have a 2 (or b 2 ) = 400 . Square root on both sides. Therefore, a 2 (or b 2 ), i.e. the other leg, is </em>

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Read 2 more answers

Which expressions are equivalent to (2^2-9) (x + 3)?

mestny [16]

Answer:

$(x^2-3^2)(x+3)$

$(x-3)(x+3)(x+3)$

$(x-3)(x+3)^2$

Step-by-step explanation:

Given

$(x^2-9)(x+3)$

Required

Select 3 equivalent expressions

$(x^2-9)(x+3)$

Express 9 as 3^2

$(x^2-3^2)(x+3)$ --- This is one equivalent expression

Take $x^2 - 3^2$ as difference of two squares

$(x-3)(x+3)(x+3)$ -- This is another equivalent expression:

Solving further:

$(x-3)(x+3)(x+3)$ becomes

$(x-3)(x+3)^2$ -- This is another equivalent expression:

Hence, the equivalent expressions are:

$(x^2-3^2)(x+3)$

$(x-3)(x+3)(x+3)$

$(x-3)(x+3)^2$

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3 years ago