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Vedmedyk [2.9K]
3 years ago
9

WILL GIVE BRAINLIEST: Find the volume of a rectangular prism if the length is 3x, the width is 5x^2, and the height is 2x^2 + x

+ 7. Use the formula V = l ⋅ w ⋅ h, where l is length, w is width, and h is height, to find the volume.

Mathematics
2 answers:
melamori03 [73]3 years ago
5 0

Answer:

30x^5 + 15x^4 + 105x^3

Step-by-step explanation:

V = l*w*h

l = 3x

w = 5x^2

h = 2x^2 + x + 7

l*w = 3x * 5x^2 = 15x^3 (add exponents when multiplying variables)

l*w = 15x^3

V = l*w*h = 15x^3(2x^2 + x + 7) = 30x^5 + 15x^4 + 105x^3

Ilya [14]3 years ago
5 0
  • L=3x
  • B=5x^2
  • H=2x^2+x+7[/tex]

\\ \rm\longmapsto V=LBH

\\ \rm\longmapsto V=3x(5x^2)(2x^2+x+7)

\\ \rm\longmapsto V=15x^3(2x^2+x+7)

\\ \rm\longmapsto V=30x^5+15x^4+105x^3

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TIME REMAINING
Sergeu [11.5K]

Answer:

the first one.

Step-by-step explanation:

DJ and decorations are one time flat costs. they are constant. so, together, they are $300.

that is what decreases the profit.

on the other side, $5 per student = 5n in total increases our profit.

so, in total the sum of both (the decreasing amount has a negative sign, if course) :

5n - 300 = 1,500

is the right equation to calculate how many students are needed to make that much profit.

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2 years ago
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4 0
3 years ago
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Reptile [31]

Answer:

2a) $180

2b) $1440

Step-by-step explanation:

2a) Basically Samuel works for 6 hours a day and earns 7.50 per hour, so you have to do 7.50 x 6 to see how much he earns per day (which in this case is $45). You then have to multiply $45 to 4 since he earns $45 per day and works 4 days per week (which is $180).

2b) After finding out how much he earns per week ($180 from the previous question), you then have to multiply $180 by 8 as $180 is the amount he earns per week and since he works for 8 weeks you have to multiply $180 by 8 (the answer is then $1440).

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8 0
3 years ago
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8 0
2 years ago
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A grocery store has small bags of apples for $5 and large bags of apples for $8. If you buy 6 bags and spend $45, how many of ea
ladessa [460]
Based on the given problem above, here is the given solution.
Given that small bags = $5
                 large bags = $8
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And per small bag is $5 x 1 = $5
So this gives you a total of $45
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3 0
4 years ago
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