Answer:
The ball will take 4.05 seconds to hit the ground.
Step-by-step explanation:
we have
This is a quadratic equation (vertical parabola) open down
The vertex is a maximum
we know that
The ball hit the ground when h=0
Solve the quadratic equation
For h=0
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
---> the time cannot be a negative number
therefore
The ball will take 4.05 seconds to hit the ground.
Answer:
Which of the following sets of possible side lengths forms a right triangle?
<h3><em><u>11, 60, and 61</u></em><em><u>✓</u></em></h3>
6, 12, and 13
9, 40, and 45
12, 35, and 38
Step-by-step explanation:
<h3>11, 60 and 61 is the right answer.</h3>
Answer:
(8,-2)
Step-by-step explanation:
270 counterclockwise is the same as 90 clockwise. Rotate on a graph.
Answer:
150x + 280y = 1310
Step-by-step explanation:
