Use the form a cos(bx-c) +d to find the variables used to find the amplitude, period, phase shift and vertical shift.
a would be the amplitude and is the number before cos.
In the given formula -1/2 is before cos, so the amplitude would be the positive value which would be 1/2
Answer:
Here You Go! I'm not really sure about this one but i tried.
Step-by-step explanation:
$26.20 minimum cost of option 1
$36.68 minimum cost of option 2
Area₁ = Length x Width
A₁ = 80 x 36
A₁ = 2880 in² * this in only one side of the door.
Total Area = A₁ x 2 sides = 2880 = 5760 in² * only good for 1 coating of paint
Total Area to be coated = 5760 x 2 coats of paint = 11,520 in²
1st option - $10 / gallon and 4400 sq. in.
2nd option - $ 7 / gallon and 2200 sq. in
11,520 / 4400 = 2.62 x $10 = $26.20 minimum cost of option 1
11,520 / 2200 = 5.24 x $ 7 = $36.68 minimum cost of option 2