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3 years ago

11

What is 20 percent of 248

2 answers:

Dvinal [7]3 years ago

5 0

Answer:

20% of 248 is 49.6

Step-by-step explanation:

aleksley [76]3 years ago

5 0

49.6 is the correct answer

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What is the equation, in point-slope form, for a line that goes through (2, −6) and has a slope of −34 ? plz help

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Answer:

y = -34x + 62

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3 years ago

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 $=(2LH+2BH)\cdot 8$

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

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

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

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

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

$B=1.35 m$

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L=2.19 m

C=$ 265.25

3 0

3 years ago