For the function f(t)= -1/2cos (3t + 3pi) -3, identify: a. the amplitude. b. the period. c. the phase shift. d. the vertical shift.

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

d 600 because 15*10*2=300

300+300=600

step-by-step explanation:

this is a good question! i'll do some research and come back when i have the answer!

the solution, from the graphing of the two lines, is (3,2), i.e., x = 3, y = 2.