Answer:
$11.50
Step-by-step explanation:
Answer:
Approximately 3.8 seconds
Step-by-step explanation:
H(x)=-16x^2+60x+4
We want to find when the ball hits the ground, or where the zeros are
0 =-16x^2+60x+4
Using the quadratic formula
-b ±sqrt(b^2 -4ac)
---------------------------
2a
-60 ±sqrt(60^2 -4*-16*4)
---------------------------
2(-16)
-60 ±sqrt(3600+256)
---------------------------
-32
-60 ±sqrt(3856)
---------------------------
-32
We want the positive value for time
-60-62.09669879
---------------------------
-32
3.815521837
Approximately 3.8 seconds
Answer: B
Step-by-step explanation:
Substituting into y=3x+b,
The width is given as = x cm
As length is given as= the length is 5 cm more than the width
The width of the rectangle is = x cm
So, length of the rectangle becomes= x+5 cm
