H=45d h stands for hours and 45d means 45 minutes per day
Answer:
See below
Step-by-step explanation:
we have f(x) = -(x-7) + 3
and we want to find f(4)
essentially, f(4) means that the input is 4 and to find the output we plug in the value of the input where ever x is and evaluate.
So for f(x) = -(x-7) + 3
To find f(4) we replace all x's with 4
f(4) = -(4-7) + 3
we now evaluate
==> subtract 7 from 4
f(4) = -(-3) + 3
==> apply two negative rule ( basically if there are two negative signs they cancel out and the number turn positive )
f(4) = 3 + 3
==> add 3 and 3
f(4) = 6
F(3) = $4 + $2.5(3)
f(3) = $4 + $7.5
f(3) = $11.50
Answer:
y ÷ 4 - 3
Step-by-step explanation:
Since it asks for the quotient of y and 4, quotient indicates that it is division, so those two are going to be divided. It also says 3 less than. Less than means subtraction.
