3 years ago

Kristine is comparing the typing speeds of her friends. The following tables shows their typing speeds.

Mathematics

1 answer:

STALIN [3.7K]3 years ago

6 0

Emma types the fastest

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Answer:

Step-by-step explanation:

Move all terms to one side

4x^2 + 4x + 5 = 0

Plug into quadratic formula

x = (-4 + $\sqrt{16 - 4(4)(5)}$ ) / 2(4)

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At this point, there are no real answers. The roots to this equation are complex.

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Step-by-step explanation:

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