3 years ago

Simplify the exponential expression. (−8) 2 =

Mathematics

1 answer:

sweet-ann [11.9K]3 years ago

6 0

Answer:

-16

Step-by-step explanation:

You might be interested in

Solve for x.<br> 2x² +21x-61 = (x+7)²<br><br> Please

Ymorist [56]

Answer:

$x = \frac{-7 +\sqrt{489} }{2}$

$x = \frac{-7 - \sqrt{489} }{2}$

Step-by-step explanation:

2x² +21x-61 = (x+7)²

expand

2x² + 21x - 61 = x² + 14x +49

move everything to one side

x² + 7x - 12 = 0

use quadratic formula

$x = \frac{-b +- \sqrt{b^{2}-4ac } }{2a}$

plug in the values

$x = \frac{-7 +- \sqrt{7^{2}-4(1)(-110) } }{2(1)}$

solve

$x = \frac{-7 +- \sqrt{49-4(1)(-110) } }{2}$

$x = \frac{-7 +- \sqrt{49 + 440 } }{2}$

$x = \frac{-7 +- \sqrt{489} }{2}$

7 0

2 years ago

Read 2 more answers

Select the inequality that represents the graph.

vagabundo [1.1K]

The second option is correct, I,e what you've chosen

6 0

3 years ago

Please help will mark you brainliest. ( all links will be reported)

cestrela7 [59]

Answer:

$6.22

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

The current value of a baseball card is 60 times its original value v

jeka94

60v = $15

60v/60 = $15/60

v = 0.25

The original value of the baseball card is $0.25

5 0

4 years ago

PLEASE HELP

Mumz [18]

If you use/make a number line, then you will see that the answer is -18 or a. When using a number line, negative = ← and positive = →.

6 0

3 years ago