The table represents the height of a rock that is dropped, h(t), in meters, after t seconds.
2 answers:
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Step-by-step explanation:
Part (a):
Since new payment amount is 20% less than the original, we can write
New Earning = N = $18 - (20%) ($18)
N = (80%)($18)
N = 0.8 * 18
N = $14.4
Part (b):
New number of errors are one-third () of the initial 15 errors,
Therefore, new number of errors = E =
E =
E = 5
It is given that, earnings per error = n = 15 cents = $0.15
Thus, we can calculate the total earnings for new number of errors as follows,
New Total Earning = N = n * E
N = 0.15 * 5
N = $0.75
the length of the rectangle is 10ft
Step-by-step explanation:
let the length = x
width = x - 4
area = length X width
so, according to the problem
x(x-4) = 60
or, - 4x = 60
or, -4x -60 = 0
or, - 10x + 6x -60 = 0
or, x(x-10) +6(x-10) =0
or, (x-10)(x+6) = 0
x = 10 ( x= -6 for length this value is not possible)
so length is 10ft
width = 10 - 4 = 6ft