Answer:
386,400
Step-by-step explanation:
840 x 4.6 x 10^2nd power
4.6 x 10^2nd power = 460
840 x 460 = 386,400
Hope this helps!
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The first one
117
the answer is one solution
X=-7
X + 142=135°
X=135-142
So the value of X is -7
