Answer:
Step-by-step explanation:
4(2y -8) + y = 13
8y - 32 + y = 13
9y - 32 = 13
9y = 45
y = 5
x = 2(5) - 8
x = 10 - 8
x = 2
(2, 5)
Area is length times width but if u do not have the width u have to multiply the length times 2 and subtract the result from the perimeter when u have the total length for both sides divide by 2 and ur answer for that is the width. gl
I think it is your second option 5
Answer:
.6601
Step-by-step explanation:
to find u, which we assume is an angle of course, we can take arctan of both sides. so arctan(-7.721) = -1.4420. this angle is in quadrant 4, but it is not in the range. In this instance you just go around the circle again, or add 2pi, which gets us 4.8412. You can check and you get the same answer if you take the tangent of either.
So now we have a number in the appropriate range in the appropriate quadrant. That means we have the correct angle. The question asks what is sine of that angle cut in half. so sin(4.8412/2), which gets you your answer. let em know if something didn't make sense.
16+5=21
21/3=7
I believe that is the correct answer]
