Answer:
7x^-7, that is the answer
Answer:
The cosine of the angle is 4/5.
Step-by-step explanation:
An acute angle is between 0º and 90º, in the first quadrant of the trigonometric circle, in which both the sine and the cosine are positive values.
For each angle
, we have that:

We have that:

So




The cosine of the angle is 4/5.
Answer:
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C.
-3 squared is 9. 9 + (-3) is 6.
Therefore, it's C