Identify the maximum and minimum values of the function y = 8 COS X in the interval (-211, 21). Use your understanding of transformations not your graphing
calculator

max = 8

min = -8

Step-by-step explanation:

Sinusoidal functions take the form of

  y(x) = Acos(ωx + Ф) + k

where A is the amplitude.

k is your vertical shift.

Ф is your phase shift (horizontal shift).

In your case, you have

y = 8cos(x)

y = 8cos(x + 0) + 0

your amplitude is 8 and you're not shifting, so you max and min is just the positive and negative value of your amplitude.

first one because it can't have a fraction in it

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.