What is the answer? and how did you solve it?

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x = 2

Explanation:

54 + 10x + 16 = 90

70 + 10x = 90

10x = 20

x = 2

I hope this helped!

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- Zack Slocum

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a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)