Option B is correct
Why
3x=21
3(7) =21
21=21
Step-by-step explanation:
Maybe it could've been:
3x = 32. Find the value of x.
Hence, you'd do 32 divided by 3 to find the value of x.
<h3>
Answer: Choice H) 2</h3>
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Explanation:
Recall that the pythagorean trig identity is 
If we were to isolate sine, then,

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.
Through similar calculations,
Cosine is also positive in this quadrant.
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So,

Therefore,

is an identity as long as 0 < x < pi/2
Just 9
I'm not sure for the second one but I think 1 ft
Answer: size and shape
Step-by-step explanation:i got it right on the quiz