Answer:
y = 72.5
x = 35.
Step-by-step explanation:
First Off, Let's Divide the question.
<em><u>Let's Find the variable y : </u></em>
<em><u /></em>
there are 2 y(s), so it is 2y.
equation: 2y +35 =180.
I put 180 because A straight Line is always 180.
2y+35=180
<u><em>1. Subtract both sides. </em></u>
2y = 145
y = 72.5
<u><em>Next,Find x </em></u>
So y + y + x = 180.
We already know y, which is<u> 72.5</u>
72.5 +72.5 + x = 180
72.5 +72.5
x + 145 = 180
x = 35.
Hope This Helps!
You want to find R. From angle R, you know the side lengths for opposite and hypotenuse. According to SohCahToa, that is sine. Sin (x) = Opposite / Hypotenuse = 2.5 / 5 = 0.5
Sine(x)=.5. To get x by itself divide both by the inverse of sine.
Plug in -1 for x and work it ou'
g(-1) = (-1)^3 + 6(-1)^2 + 12(-1) + 8
= -1 + 6 - 12 + 8
= 1
One of the 4 options prolly D