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agasfer [191]
2 years ago
9

PLease help me this is due at midnight!

Mathematics
2 answers:
wel2 years ago
6 0
What do you need help with? Please give me a photo or something so that I can help you with it. All I see is “Please help me, this is due at midnight!!” Next time please give US a picture or something so I can be able to help you, Thank you, Sincerely Unknown.
rusak2 [61]2 years ago
3 0
I have no idea how to do this question or anything I just want to answer for the points so my bad
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Suppose we want to build a rectangular storage container with open top whose volume is $$12 cubic meters. Assume that the cost o
Snezhnost [94]

Answer:265.25

Step-by-step explanation:

Given

Volume of box=12 m^3

height is 3 times the width

let height, length and breadth be H, L & B

H=3\times B

V=12=L\times B\times H

4=B^2\times L[/tex]

L=\frac{4}{B^2}

Cost of side walls $ 8/m^2

Cost of base $ 12/m^2

Cost of side walls=(2LH+2BH)\cdot 8

Cost of base =12LB

Total cost C=16LH+16BH+12LB

C=48LB+48B^2+12LB

C=\frac{192}{B}+48B^2+\frac{48}{B}

differentiate C w.r.t B to get minimum cost

\frac{\mathrm{d} C}{\mathrm{d} B}=-\frac{192}{B^2}+2\times 48 B-\frac{48}{B^2}

B^3=\frac{240}{2\times 48}

B=1.35 m

H=3\times 1.35=4.07 m

L=2.19 m

C=$ 265.25

3 0
3 years ago
Santiago receives an allowance of $7 every week.How much total dose he receve after 4 weeks?
zlopas [31]
7  x 4 = 28

Santiago has a total of $28.
5 0
3 years ago
A piece of pie costs .10 and a cup of coffee costs .5. How much will 40 pieces of pie and 20 cups of coffee cost?
dybincka [34]
One pie costs 0.10
you are buying 40 pies so...
40 x 0.10 = $4

one cup of coffee costs 0.50
you are buying 20 coffee so...
20 x 0.50 = $10

$4 + $10 = $14

It costs $14 to buy 40 pieces of pie and 20 cups of coffee
7 0
3 years ago
How do you do this <br>.
mars1129 [50]
The slope of the line on the graph represents Pete's speed. That slope is 8 miles/hour.

Paul walks 2 miles in 0.4 hours, so walks at (2/0.4) miles/hour = 5 miles/hour.


a) Pete is moving at a greater rate.


b) At 8 miles per hour, it takes Pete (2 mi)/(8 mi/h) = 1/4 h = 15 minutes to get to school. If Pete leaves 5 minutes later than Paul, he will reach school 20 minutes after Paul starts, while Paul is still 4 minutes away from the school.

Yes, Pete will catch Paul before they get to school.
6 0
3 years ago
What are the domain and range of the function f(x)= 1/4(x^3+6^2+5x-4)
alexandr1967 [171]

Answer:

it is 300

Step-by-step explanation:

because of you get it and dived it den you will time it so you will get to 300

4 0
3 years ago
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