The voltage in an electrical circuit is multiplied by itself each time it is reduced. The voltage is 27/125 of a volt and has be
1 answer:
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First, split the triangle into half.
So the angle 38 becomes 38/2=19.
So we know two angles in the triangle:
One is 19 degrees.
The other one is 90 degrees (marked red).
The angles in a right-angled triangle add up to 180 degrees.
So to find the x angle, we calculate it by:
180 - (90+19) = 71
(the sum of three angles) - (the sum of the two known angles) = unknown angle
So x = 71 degrees.
Answer:
3
Step-by-step explanation:
Given
f(x) = , then
f(12) = =
= ± 3
There are 2 values 3 and - 3
The positive value of f(12) is + 3