Answer:
y ≈ 61
Step-by-step explanation:
Using the Sine rule in the triangle
= 
( cross- multiply )
y × sin18° = 21 × sin117° ( divide both sides by sin18° )
y = 
≈ 61 ( to the nearest whole number )
c (cost)
m (month)
c= xm + b
$424.20= 24.95m+ $49.95
Move everything except variable on one side.
424.20 - 49.95 = $374.24
$374.25 = 24.95m
Divide by 24.95
m = 15
15 Months
C. Jasmine bought some tiles to put around her patio. . .
They asked for area which is always L x W, which was the give away.
Answer:
y = -1/2x^2 -5x -45/2
Step-by-step explanation:
Multiply it out and collect terms.
y = -1/2(x^2 +10x +25) -10 . . . . . expand the square
y = -1/2x^2 -5x -25/2 -20/2 . . . eliminate parentheses
y = -1/2x^2 -5x -45/2 . . . . . . . . collect terms
Number 1 & 2 both goes in 200. Numbers 9,3, & 27 goes into 81. Numbers 10,5,4,8,20, & 25 goes into 200. Hope this helps
