You take what Mark ran, 46 miles, and you see that Mark ran 31 more miles than Jack, so the equation would be 46-31, which would be 15 miles. So, Jack ran 15 miles.
The jeans were $10.00 before 15% tax.
So x+0.15x=11.50
1.15x=11.50
x=10
Answer:
the vertex is at (2, 5) and the axis of symmetry is x = 2
Step-by-step explanation:
A word to the wise: Please use " ^ " to indicate exponentiation. And so we have:
y= -2x^2+8x-3
The x-coordinate of the vertex and the equation of the axis of symmetry is determined by the equation
b -8
x = ------- which here is x = ----------- = 2
2a 2(-2)
Then the y-coordinate of the vertex is f(2) = -2(-2)^2 + 8(2) - 3 = 8 - 3 = 5
and so the vertex is at (2, 5) and the axis of symmetry is x = 2
Answer:
(0,−6)
Step-by-step explanation:
brainest PLEASE