11) 4
12) $6.66 a min
13) 25¢
14) Alexander
15) C. 22.50
16) C
The answer is C.The area of the triangle in Step 3 should be doubled since there are 2 triangles.
56 is your answer.
Equation for direct proportion is y = kx where k is the constant of proportionality. For your letters, it’s f = ka
We know 72 =k9, so k = 8
Then they want you to solve
f = 8•7
f = 56
D)
Calculate sin inverse of .4321, then add 180 degrees
Use distance formula, line segment Uv is 5, vw is 6, and uw is square root of 61, add line segments up to get perimeter
