The equation that models the height above or below equilibrium in inches, h, of a spring over
time in seconds, t, is h=-15 cos(2pi/5 t.
At which times will the spring be at a height of 8 in.
above equilibrium? Select all that apply.
4.2 seconds
D 1.7 seconds
0 2.9 seconds
0.8 seconds
00 3.3 seconds

0.32

step-by-step explanation:

2.24/7

answer: x=60

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step-by-step explanation:

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b