Which of the following statements are true about the function below? Select all that apply
f(x) = (x - 4)2 - 1
A. f(x) has a zero at x = 4
B. f(x) has a maximum at x = 4
C. f(x) has a minimum at x = -1
D. f(x) has a zero at x = 3
E, the minimum value of f(x) is -1
F. the maximum value of f(x) is 15

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west