11a:
3x+5=5x-57
3x-5x=-57-5
-2x=-62
x=31
11b:
2x+2x+4x+150+4x+150=360
12x+300=360
12x=360-300
12x=60
x=5
hope this helped !!
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Square both sides:


Since

is positive, you can discard the negative sign. So,

Substitute this value back into

to find


I hope this helps. =)
Tags: <em>trigonometric identity relation trig sine cosine tangent sin cos tan trigonometry precalculus</em>
Answer:
6
Step-by-step explanation:
Find the predicted y value when x=1:

Find the residual:

Because our residual is positive, this is an indicator that our predicted y value is too low.
It’s y=3x-3 that is where the line passes thru
The answer is -41
You can graph them and see where the line passes on the y-axis which is the vertical axis