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makkiz [27]
2 years ago
11

Please help answer A and B

Mathematics
1 answer:
Goshia [24]2 years ago
4 0

Answer:

the answer is A

Step-by-step explanation:

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Solve the equation by using the quadratic formula. x^2+2x=6​
katrin [286]

Answer:

\Huge \boxed{{x=-1\pm \sqrt{7}}}

Step-by-step explanation:

x² + 2x = 6

Subtract both sides by 6.

x² + 2x - 6 = 0

ax²+bx+c=0

a=1, b=2, and c=-6

We can apply the quadratic formula.

\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

Plug in the values.

\displaystyle x=\frac{-2\pm\sqrt{2^2-4(1)(-6)}}{2(1)}

Evaluate.

\displaystyle x=\frac{-2\pm\sqrt{4-(-24)}}{2}

\displaystyle x=\frac{-2\pm\sqrt{28}}{2}

\displaystyle x=\frac{-2\pm 2\sqrt{7}}{2}=-1 \pm \sqrt{7}

6 0
3 years ago
Can somebody please help me
olasank [31]

Answer:

70

Step-by-step explanation:

Complementary angles equal 90 degrees

90 - 20 = 70

I hope this helps!

5 0
2 years ago
What is the slope of the line?​
Maurinko [17]

Answer:

-1

Step-by-step explanation:

i think thats corrext

3 0
3 years ago
Read 2 more answers
What is:
RSB [31]

Answer:

0

Step-by-step explanation:

Anything times 0 is 0.

7 0
2 years ago
Select all of the expressions that are equivalent to -7.
Ivanshal [37]

Answer:

the answers that are equivalent are a, b, and e

6 0
3 years ago
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