2 years ago

Whoch of the following statements are true? Select all that apply

Mathematics

1 answer:

sineoko [7]2 years ago

8 0

Answer:

C and D

atleast 20 characters to explain it well

You might be interested in

Solve x2 + 2x + 9 = 0

Keith_Richards [23]

$x^2+2x+9=0 \\ \\
a=1 \\ b=2 \\ c=9 \\ b^2-4ac=2^2-4 \times 1 \times 9=4-36=-32 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-2 \pm \sqrt{-32}}{2 \times 1}=\frac{-2 \pm \sqrt{-16 \times 2}}{2}=\frac{-2 \pm 4i\sqrt{2}}{2}=-1 \pm 2i\sqrt{2}$

The answer is D.

8 0

3 years ago

Read 2 more answers

I dont get it so can someone explain

tigry1 [53]

Step-by-step explanation:

option A i think

hope it helps

8 0

2 years ago

Use the following graph to solve the equation 3n + 7 = 52

Tanya [424]