A ladder that is 15 meters long is leaning against a wall. The top of the ladder is being pulled up the wall at a rate of 3 meters per second. If x is the distance between the bottom of the ladder and the wall, find the rate of change of this distance at x = 10 meters. Assume that the top of the ladder maintains contact with the wall throughout. A.
–2.72 m/s
B.
–3.354 m/s
C.
–4.56 m/s
D.
–5.75 m/s

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 on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

hope i could someone! : )