Solve for x and y. Round to the nearest tenth if necessary.
1 answer:
4x + 2x = 90
x = 15
Tan (AngleA = 60) = y / 5
y = 1.7321 * 5
y =
<span>
<span>
<span>
8.660</span></span></span>3
It seems the answer is D (though y = 8.66 and NOT 8.1)
DOUBLE-CHECK
That is a 30 60 90 triangle and 2 * shrt side = long side (AB)
so, y^2 = 10^2 -5^2
y^2 = 75
y = 8.66
So, it seems the answer is D
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