Answer: y = -3x + 1
step-by-step process
find the slope first using (y-y)/(x-x)
(4-(-5))/(-1-2) = 9/(-3)
m = -3
then use one of the points to find the y-intercept by putting it in y=mx+b, substituting m with -3 (aka the slope) as well
4 = -3(-1) + b
4 = 3 + b
4 - 3 = 3 + b - 3
1 = b
therefore, the equation for the line is: y=-3x+1
Cos(x) = 10.5 / 20
cos(x) = 0.525
answer
C.
x = 58.3"
she ran 15 miles in the first month and 15 in the second but because it doubled in the third month she ran 30 miles. 15+15+30=60 miles total
Answer:
60
Step-by-step explanation:
let a = 22 / kg, and b = 12 / kg
a + b = 20 kg
22a + 12b = 15 * 20
12a + 12b = 240
10a = 60
<span>To determine the Area, A, we just multiply the two sides together:
A = (x - 1) (x + 4)
A = x^2 - 1x + 4x - 4
A = X^2 + 3x - 4</span>