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3 years ago

Help look at the pic

Mathematics

2 answers:

anzhelika [568]3 years ago

8 0

Answer:

b = -6.307 or -11.693

Step-by-step explanation:

$b^{2} +9b +13\\$

This can't be factored so you need to use the quadratic formula which is

-b ± $\frac{\sqrt{b^{2} -4ac}}{2a}$

Plugging the numbers from the equation in, it's

-(9) ± $\frac{\sqrt{(9)^{2}-4(1)(13) } }{2(1)}$

This simplifies down to b = -6.307 or -11.693.

These are both real solutions.

Lapatulllka [165]3 years ago

7 0

Answer:

b = -6.307 or -11.693

Step-by-step explanation:

hope it helps credits to first guy tho

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$2.89 \times 10^{-8}\\\\1.997 \times 10^2\\\\8.9 \times 10^{-6}\\\\5 \times 10^{-6}$

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