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2 years ago

If line n bisects segment CE, find the positive value of x. A.6 B.10 C.15 D.9

Mathematics

2 answers:

givi [52]2 years ago

8 0

9514 1404 393

Answer:

D. 9

Step-by-step explanation:

The segment lengths are equal, so ...

x^2 = 90-x

x^2 +x -90 = 0 . . . . . . add x-90 to put in standard form

(x +10)(x -9) = 0 . . . . . factor

The solutions are the values of x that make the factors zero: -10, 9.

The positive value of x is 9.

alexandr402 [8]2 years ago

8 0

The answer has to be D 9

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