Answer:
Please see the attached file for the complete answer.
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
Given in the question the equation
y = -x² + 2x - 1
To find the x-intercept, substitute in 0 for y
0 = -x² + 2x - 1
To find value of x use quadratic equation
x = -b ± √b²-4ac / 2a
here a = -1
b = 2
c = -1
x1 = -2 + √2²-4(-1)(-1) / 2(-1)
= -2 + 0 / -2
= -2 / -2
= 1
x2 = -2 - √2²-4(-1)(-1) / 2(-1)
= -2 - 0 / -2
= -2 / -2
= 1
Answer:
The answer is 100.5 
.
Step-by-step explanation:
To solve for the volume of the cylinder, use the cylinder volume formula, which is V = 
.
Next, plug in the information given from the problem, and the formula will look like V = 
.
Then, solve the equation, and the answer will be 100.5 .
8.5/12=0.708333 1 hour=60 minuets 60x0.708333= 42.5 or 42 1/2 miles
