A quadratic equation is written in four equivalent forms below. I. y = (x + 5)2 - 1
II. y = x2 + 10x + 24
III. y = (x + 4)(x + 6)
IV. y = x(x + 10) + 24

Which of the forms shown above would be the most useful if attempting to find the x-intercepts of the quadratic equation?
A.
II.
B.
I.
C.
IV.
D.
III.

the answer is d. (1.2, -4.7) on edgn

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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: