Question

Quadratics easy question. Please help

Answer 1

Answer:

1.62 seconds

Step-by-step explanation:hope i helped

Answer 2

Answer:

1.62 seconds

Step-by-step explanation:

h = -16t² + 24t + 16.4

The initial height is 16.4 feet.  The snowboarder lands 3.2 feet below this, or at a height of 13.2 feet.

13.2 = -16t² + 24t + 16.4

16t² − 24t − 3.2 = 0

Solve with quadratic formula:

t = [ -(-24) ± √((-24)² − 4(16)(-3.2)) ] / 2(16)

t = [ 24 ± √(576 + 204.8) ] / 32

t = 1.62

The snowboarder is in the air for 1.62 seconds.