Answer:y=-3x+4
Step-by-step explanation: use the y=mx+b equation.
70
make 30 minutes into an hour then divide 140 by 2
140/2=70
70x1=70
92 can be rounded to 90
68 can be rounded to 70
90 x 70 = 6300
Answer:

(Assuming you want your answer in radians)
If you want the answer in degrees just multiply your answer in radians by
giving you:
.
We can do this since
(half the circumference of the unit circle is equivalent to 180 degree rotation).
Step-by-step explanation:
is going to output an angle measurement in
.
So we are looking to solve the following equation in that interval:
.
This happens in the second quadrant on the given interval.
The solution to the equation is
.
So we are saying that
implies
since
.
Answer is
.