Answer:
400 ft
Step-by-step explanation:
h(t)= -16t^2 + 160t
The vertex is found at
h = -b/2a where b is the coefficient of t and a is the coefficient of t^2
= -160/(2*-16)
-160/-32
5
The time where the maximum occurs is at t=5
To find the maximum substitute into the function
h(5) = -16 (5)^2 +160*5
= -16*25 +800
=-400+800
= 400
The maximum height is 400 ft
Answer:
x=2
Step-by-step explanation:
First use the distributive property on the right side... You should get then have 7x+30 = 2 + 6x + 30
Simplify further by combining like terms to get 7x + 30 = 32 + 6x
Now subtract 6x on both sides (6x - 6x cancels out) to get 1x + 30 = 32
Next subtract 30 from both sides(30-30 cancels out) to get 1x = 2
2 divided by 1 is 2 so x = 2
Answer:
C. all real numbers
Step-by-step explanation:
D(y) = {x / x € R }
_____
Answer:
1. One side of a rectangle is 4 in shorter than three times the other side. Find the sides if the
perimeter of the rectangle is 48 in.
Solution: Let us denote the shorter side by x: Then the other side is 3x
We now apply the zero property. Either x
Cost of 3 gallons of milk =3.79
Amount Kari paid =20
difference =20-3.79 = 16.21
so she will receive 16.21 back