360 ft * 160ft = 57,600 ft squared
I'm not sure, this question was kind of confusing
A.
earnings=bonus+pay
pay=pay per hour times number of hours
h=number of hours
9.5=pay per hour
pay=9.5h
bonus=60
earnings=9.5h+60
at least 460
greater than or equal to 460
9.5h+60<span>></span>460
B. solve for h
9.5h+60<u>></u>460
subtract 60
9.5h<u>></u>400
divide oth sides by 9.5
h<u>></u>42.1
at least 42.1 hour (about 42 hours and 6 minutes, if the job is rounding, then say 43 hours)
A. 9.5h+60<u>></u>460
B. 42.1 hours
Volume of a box (rectangular prism) should be length x width x height. Since you're given the values...
What's 2 1/2 x 1 1/2 x 4? That should give you your volume.
-6= 8m-2m= 6m
m=-1
3(-1)= -3
Answer:
a) h = 123/x^2
b) S = x^2 +492/x
c) x ≈ 6.27
d) S'' = 6; area is a minimum (Y)
e) Amin ≈ 117.78 m²
Step-by-step explanation:
a) The volume is given by ...
V = Bh
where B is the area of the base, x^2, and h is the height. Filling in the given volume, and solving for the height, we get:
123 = x^2·h
h = 123/x^2
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b) The surface area is the sum of the area of the base (x^2) and the lateral area, which is the product of the height and the perimeter of the base.
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c) The derivative of the area with respect to x is ...
When this is zero, area is at an extreme.
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d) The second derivative is ...
This is positive, so the value of x found represents a minimum of the area function.
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e) The minimum area is ...
The minimum area of metal used is about 117.78 m².