50 POINTS!!! Use the quadratic formula above to solve for h(t) = -4.9t^2 + 8t + 1 where h is the height of the ball in meters an

Question

3 years ago

6

d t is time in seconds. Round to the nearest hundredth second!

2 answers:

myrzilka [38] · Answer 1 · 2022-03-04T10:47:14+03:00

Answer:

1.75 seconds

Step-by-step explanation:

Lets apply the quadratic formula-

- 8 +_ (sqrt of 64 + 19.6)

__________________

-9.8

-8 +_ 9.1433

__________________

-9.8

x = 1.74931972 ( since x can only be positive in real life situations like when throwing a ball)

x = 1.75 rounded in seconds

LuckyWell [14K] · Answer 2 · 2022-03-04T12:29:00+03:00

3 0

Answer:

Step-by-step explanation:

h(t)= -8±√8^2-4(-4.9)(1)/2(-4.9)

h(t)=-8±√64-19.6/ -9.8

h(t)=-8±√44.4 / -9.8

h(t)=-8±6.6633325/ -9.8

h(t)= 0.14

The height will be 0.14

The time will be 2.02 seconds per meter

Hope that helps.