Total food:
8.50 + 1.99 = $10.49
Tax: 10.49 x 0.06 = $0.63
Tip: 10.49 x 0.15 = $1.57
Total: 10.49 + 0.63 + 1.57 = $12.69
Answer: x= -0.2
Step-by-step explanation:
Answer:
132.25 feet
Step-by-step explanation:
Since the function is a quadratic representing height, and the coefficient of the t² is negative, the vertex of the parabola will be the maximum height achieved by the ball.
The general form for a quadratic equation is ax² + bx + c,
here a is -16, and b is 92
To find the x coordinate of the vertex, use x = -b/(2a)
We have x = -92/[2(-16)]
x = -92/-32
x= 23/8
Now plug that into the equation to find the y value, which will be the height...
y = 92(23/8) - 16(23/8)²
y = 2116/8 - 16(529/64)
y = 1058/4 - 529/4
y = 529/4
y = 132.25
