Maximum value of the function f(x)=-x²-6x-17

Step-by-step explanation:

y = -x^2 + 6x - 17

y = -(x^2 - 6x) - 17

y = -(x^2 - 6x + 9 - 9) - 17

y = -(x^2 - 6x + 9) - 17 + 9

y = -(x - 3)^2 - 8

The maximum value is -8 for x = 3.

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

the answer is d

step-by-step explanation:

you can also use mathway to get you answer + steps