For the 51-deg angle, y is the opposite leg, and 12 is the hypotenuse.
The trig ratio that relates the opposite leg and the hypotenuse is the sine.
sin A = opp/hyp
sin 51 deg = y/12
y = 12 * sin 51 deg
y = 9.3
ANSWER

EXPLANATION
We want to simplify

The fractions have the same denominator so we write one denominator and add the numerators to obtain,

Regroup in the denominator to get,

This simplifies to;
Answer:
d (d^6-3)
the 6 is the exponent
Step-by-step explanation:
Answer:
x = -4
Step-by-step explanation:
x/8 = -1/2
-1/2 = ?/8
2 * 4 = 8
-1 * 4 = -4
2 * 4 = 8
-1/2 = -4/8
x = -4