Find the value of x.

C

Step-by-step explanation:

if you subtract 55 from 90 and divide it by 5 then you get your answer, which is C:7

7

Step-by-step explanation: This is a adjacent angle, meaning they've a common vertex and side but don't overlap.

In the problem...

This is a right and acute angle. So, we can subtract 90 by 55 to find the value of x.

90 - 55 = 35. We're not done yet. In the problem, it says 5x. We'll need to divide 35 by 5 to get our answer.

35 ÷ 5 = 7

Hence, 7 is the answer.

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i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation: