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postnew [5]
3 years ago
5

You need about 1 1/2 hours to set up a computer workstation. At this rate, how many hours should it take you to set up 7 of thes

e workstations? A 4 2/3 B 8 1/2 C 10 D 10 1/2 E 11 2/3
Mathematics
2 answers:
nevsk [136]3 years ago
8 0
7 x 1.5 = 10.5


answer c
castortr0y [4]3 years ago
5 0
If it is 1.5 hrs to set up one, then to set up 7, it would be 7 * 1.5 = 10.5 (or 10 1/2) hrs
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You're subtracting three each time.
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(9•4)•18 = 9•(4•18)<br><br><br> A True <br> B. False
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Answer:

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Step-by-step explanation:

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LenKa [72]

If Sa=2πrh+2πr^{2}v=πr^{2}h then the surface area is πr^{2} h and volume is

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We have to find surface area and volume from the given expression.

Volume is basically amount of substance a container can hold in its capacity.

First we will find the value of v from the expression. Because they are in equal to each other, we can easily find the value of v.

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Keeping the term containing v at left side and take all other to right side.

2πr^{2}v=πr^{2}h-2πrh

v=(πr^{2}h-2πrh)/2πr^{2}

v=πr^{2} h/2πr^{2}-2πrh/2πr^{2}

v=h/2-h/r

v=h(r-2)/2r

Put the value of v in Sa=2πrh+2πr^{2} v

Sa=2πrh+2πr^{2}*h(r-2)/2r

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=πr^{2}h

Hence surface area is πr^{2}h and volume is h(r-2)/2.

Learn more about surface area at brainly.com/question/16519513

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2 years ago
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Triangle B can be proven congruent
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