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3 years ago

7

Help!!! please & explain if can:(

1 answer:

horsena [70]3 years ago

6 0

Answer:

x = 15

Step-by-step explanation:

AEB is a right angle, a right angle is 90 degrees

this means 5x+15 needs to equal 90

plug in 15 for x

5 x 15 + 15 = 90

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Plzzzz help! I need it ASAP.

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Answer:

22

Step-by-step explanation:

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I hope I helped you.

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2 years ago

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Step-by-step explanation:

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3 years ago

A research team aboard an underwater research vessel descends 800 feet below sea level. They then rise 480 feet before descendin

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Step-by-step explanation:

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2 years ago

Read 2 more answers

Which equation is the inverse of y = 7x2 – 10?

MrRissso [65]

we have

$y=7x^{2}-10$

To find the inverse

Step 1

Exchanges the variables, x for y and y for x

$x=7y^{2}-10$

Step 2

Isolate the variable y

$x=7y^{2}-10$

$7y^{2}=x+10$

$y^{2}= \frac{x+10}{7}$

Square Root both sides

$y=(+/-)\sqrt{\frac{x+10}{7}}$

Step 3

Let

$f(x)^{-1}=y$

so

$f(x)^{-1}=(+/-)\sqrt{\frac{x+10}{7}}$

therefore

<u>the answer is</u>

The inverse is

$f(x)^{-1}=(+/-)\sqrt{\frac{x+10}{7}}$

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2 years ago

Read 2 more answers