Bills right because the y-intercept is 50 so I’m think what he’s saying about the rocket being launched 50 feet above water is right
Answer:
about 3 hours and 33 mins
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
related equation
-16t^2 + 32t + 20 = 0
-4t^2 + 8t + 5 = 0
Δ/4 = 16 + 20 = 36
t1 = (-4 + 6)/-4 = -1/2
t2 = (-4 - 6)/-4 = 5/2
-16(t+1/2)(t-5/2)
-16(2t+1/2)(2t-5/2)
-4(2t+1)(2t-5)
Answer:
C.
and
Step-by-step explanation:
You have the quadratic function
to find the solutions for this equation we are going to use Bhaskara's Formula.
For the quadratic functions
with
the Bhaskara's Formula is:


It usually has two solutions.
Then we have
where a=2, b=-1 and c=1. Applying the formula:

Observation: 

And,

Then the correct answer is option C.
and