Answer:
<em>after 4seconds</em>
Step-by-step explanation:
Given the height, h , in feet, of the football above the ground after t seconds expressed by h ( t ) = − 8 t^2 + 32 t, the height of the ball on the ground is 0feet.
Substitute h(t) = 0 into the expression and calculate t;
h ( t ) = − 8 t^2 + 32 t
0 = − 8 t^2 + 32 t
8t² = 32t
8t = 32
Divide both sides by 8
8t/8 = 32/8
<em>t = 4s</em>
<em>Hence the football hits the ground after 4seconds</em>
Answer:
137 degrees
Step-by-step explanation:
supplementary angles add up to 180 degrees
180-43=137
She put nine muffins on each plate. 9 x 4 is 36.
Answer:
a) 1325 frogs b)75.47 hours
Step-by-step explanation:
start = 150 frogs
after 4 hours = 530
1) figure out how many frogs per hour 530/4 = 132.5 frogs per hour
2) 10 hours after initial time * 132.5 frogs = 1325 frogs
3) Time to reach 10000 frogs is => 10000 / 132.5 = 75.47 hours
Your absolute value is x+5 so next you would find the answer to 5 minus 8 which is -3 but since -3 and x are on the same side of the equation you have to add 3 to both sides. So the answer is 3
