$f(x) = \sqrt{ {x}^{2} } - 5 \\ = > f(4) = \sqrt{ {(4)}^{2} } - 5 \\ \: \: \: \: \: \: \: \: \: \: = \sqrt{16 } - 5 \\ = 4 - 5 \\ = - 1 \\ or \\ = - 4 - 5 \\ = - 9$

<h3>Answer:</h3>

-1 or -9

<h3>Hope it helps</h3>

ray4918 here to help

3 0

2 years ago

Anna earned $72. She gives her mother 1/3 of this amount and spends 1/4 of the money on going out. What fraction of the $72 is l

Maurinko [17]

1/3 of 72 is 24 subtract 24 from 72 and get 48 and 1/4 of 48 is 12 so you subtract 12 from 48 and get 36 there for you have 36 dollars left over

7 0

3 years ago

Read 2 more answers

Solve the inequality 3(x + 2) > 0.

Murljashka [212]

Answer:

B.) x>-2

Step-by-step explanation

3 0

3 years ago

Read 2 more answers

A.) write an equation in slope intercept form for the total cost of any number of tickets at 7 tickets for $5.

marta [7]

Slope intercept form is y = mx + b

7 tickets for $5 means that 1 ticket costs 5/7 dollars

So for part a, the slope intercept form would be:

$y = \frac{5}{7}x$

where x is the number of tickets, and y is the price.

For part b)

The slope intercept form is:
$y = 25x$

where x is the number of all you can ride wristbands you buy, and y is the total price.

3 0

3 years ago