4. The drop that riders experience on Dr. Doom's Free Fall can be modeled by the quadratic function, h(t) = -9.8t2 - 5t + 39 where h is height in meters and t is time in seconds.
Part A: What is the starting height of riders?
Part B: According to the function, when will the height of the riders equal 0?
Part C: Will the height ever actually equal O? Why or why not?

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions

3, 12, 48, 384, 1536, 6144, 24576, 98304

step-by-step explanation:

just keep timing it by 4.

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh