3 years ago

Factor the expression 5x^2 -22x -15

1 answer:

3 0

$5x^2-22x-15=5x^2\underbrace{-25x+3x}_{-22x}-15\\\\=(5x^2-25x)+(3x-15)=5x(x-5)+3(x-5)\\\\=\boxed{(x-5)(5x+3)}$

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Alina [70]

Answer:

5/13

Step-by-step explanation:

Using SOHCAHTOA

Cosine of D = adjacent / hypotenuse

Cosine of D = 5 / 13

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2 years ago

Harlamova29_29 [7]

A would either be + or -3, or + or minus 4 depending on what b is

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3 years ago

Leto [7]

Answer:

0.66(1.1 ^n -1)

Step-by-step explanation:

They are in GP!

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3 years ago

Tanya [424]

Answer:

I think its 12.3 years

Step-by-step explanation:

a fifth of 775 is 155 and 155 x 12.3 = 1850

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3 years ago

Ket [755]

Yep it is greater. Hope this helps

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3 years ago