2 years ago

HELP I NEED HELP ASAP

Mathematics

2 answers:

disa [49]2 years ago

5 0

I believe it’s B I apologize if it’s wrong

solniwko [45]2 years ago

3 0

I agree with the fist answer it’s B.

You might be interested in

Please help :( will give brainliest!

Fittoniya [83]

B c and d are correct

3 0

2 years ago

Read 2 more answers

What is the answer to this

skad [1K]

The answer is 10 because 5 and 5 is 10

8 0

2 years ago

Solve the equation 4n2 − 16n − 84 = 0 by completing the square.

melomori [17]

4n² - 16n - 84 = 0

Multiply both sides by 1/4 :

n² - 4n - 21 = 0

Add 21 to both sides:

n² - 4n = 21

Complete the square by adding 4 to both sides:

n² - 4n + 4 = 25

(n - 2)² = 25

Solve for n :

n - 2 = ± √25

n - 2 = ± 5

n = 2 ± 5

Then n = 2 + 5 = 7 or n = 2 - 5 = -3.

8 0

1 year ago

Simplify. (-2)^-3 <br> ?????

Licemer1 [7]

Remember
$(ab)^c=(a^c)(b^c)$ and
$x^{-m}= \frac{1}{x^m}$
so
$(-2)^{-3}= \frac{1}{(-2)^3}= \frac{1}{(-1)^3(2)^3}=\frac{1}{(-1)(8)}=\frac{1}{-8}=\frac{-1}{8}$

3 0

2 years ago

Determine which system below will produce infinitely many solutions. -4x + 6y = 20 4x - 3y = -2 -2x + 4y = 18 4x - 8y = -36 3x -

Vanyuwa [196]

The second:
$\left \{ {{-2x+4y=18} \atop {4x-8y=-36}} \right.$
<span>The second equation is equal to the first multiplied by -2, giving two coincident straight lines with infinite points in common (solutions)</span>

3 0

2 years ago