When x = -1, y = - 3 ((-1)^2-4)
When x = 0, y = -4 ((0)^2-4)
When x = 5, y = 21 ((5)^2-4)
When x = 13 y = 165 ((13)^2-4)
You just substitute the values of X into the equation
Y=5x-1
-15x-3y=3
-15x-15x+3=3
-30x=0
x=0
therefore y=5x0 -1= -1
so one solution(0,-1)
Answer: The population in Eric's survey is the high school seniors.
9514 1404 393
Answer:
x ≈ 136.7 ft
Step-by-step explanation:
As you have marked, the relevant sides are the adjacent side and the hypotenuse. The mnemonic SOH CAH TOA reminds you ...
Cos = Adjacent/Hypotenuse
For this triangle, that means ...
cos(43°) = (100 ft)/x
x = (100 ft)/cos(43°) . . . . . . . . . . multiply both sides by x/cos(43°)
x ≈ 136.73 ft
The length x is about 136.7 feet.
