Answer:
<h2>The answer is option C</h2>
Step-by-step explanation:

Using trigonometric identities
That's

Rewrite the expression
That's

Simplify
We have

So we have
3( - 1)
We have the final answer as
<h2>- 3</h2>
Hope this helps you
Answer:
C. ±square root of 30
Step-by-step explanation:
Apply the square root function to both sides of the equation:

_____
The absolute value equation has two solutions. They match choice C.
Answer:
94.5yd³
Step-by-step explanation:
volume = length × width × height
length = 7 yd , width = 4.5 yd and height = 3 yd
so volume = 7 × 4.5 × 3 = 94.5yd³
Answer:
Marianne is 15 years old and her brother is 5 years old; is the relationship between their ages proportional?
Step-by-step explanation:
i just did it