3 years ago

Which expression represents 5 less thann twice

Mathematics

1 answer:

Gwar [14]3 years ago

8 0

Answer:

2x -5, like that you didn't put enough.

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Which graph represents a proportional relationship?

Colt1911 [192]

Answer:

represented by the graph of a straight line through the origin with a slope equal to the unit rate.

Step-by-step explanation:

For each point (x, y) on the graph, ž is equal to k, where k is the unit rate.

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Please help me with this math problem.

NARA [144]

WHERE IS THE MATH PROBLEM

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

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

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

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

$B=1.35 m$

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2 years ago

A plane and a line can intersect in a point true or false

tester [92]

Answer:

True

Step-by-step explanation:

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The radius of the earth is 6.371 X 10^3 km. Write the value of this scientific notation and express the radius in words.

snow_tiger [21]

Answer:

6371. six thousand three hundred and seventy-one

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2 years ago