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Alenkinab [10]
3 years ago
14

Five times a number increased by 15 equals 8 decreased by twice the number. Write an equation and solve showing all work.​

Mathematics
1 answer:
ivanzaharov [21]3 years ago
8 0

Answer:

5x+15 = 8 -2x

Explanation:

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A boulder falls off the top of a cliff during a storm. The cliff is 90 feet high.
andreev551 [17]

Answer:

It will take the boulder approximately 4.28 seconds to hit the road

Step-by-step explanation:

The given height of the cliff from which the boulder falls, h = 90 feet

The equation that can be used to find the time it takes the boulder to fall is h = u·t + (1/2)·g·t²

Where;

h = The height of the cliff = 90 ft.

u = The initial velocity of the boulder = 0 m/s (The boulder is assumed to be at rest when it falls)

g - The acceleration due to gravity ≈ 9.81 m/s²

t = How long it will take for the boulder to hit the road below

Plugging in the values gives;

90 = 0 × t + (1/2)×9.81×t² = 4.905·t²

∴ t = √(90/4.905) ≈ 4.28

The time it takes the boulder to hit the road, t ≈ 4.28 seconds.

7 0
2 years ago
Which of the following equations could be used to solve for x in the triangle shown?
iVinArrow [24]

Answer:

a

Step-by-step explanation:

because do sin 48 x X to find it

7 0
2 years ago
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Pleaseee help
natulia [17]

Answer:

B.

Step-by-step explanation:

All computer simulations are designed to test a large number of different scenarios with various sets of data in order to understand each output that certain data generates and ultimately find the best solution. This is the overall main reason why simulations are created. The same applies in this scenario, this simulation will be used to test hypotheses about patterns in the job placement process that are costly or time-consuming to observe in reality. If such tests had to be conducted by actual people it would take months, years, or even decades to generate and analyze all the data.

5 0
3 years ago
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The area of this rectangle is 165 sq meters the width is 22 meters what’s is the perimeter?
Vesna [10]

Answer:

59 meters

Step-by-step explanation:

A=L*W

165=L*22

L=165/22=7.5

7.5=L

P=L+L+W+W

7.5+7.5+22+22=59


7 0
2 years ago
The questions are in the photos, I know it's a lot but the question is worth 100 points. Please answer it,,,,
FromTheMoon [43]

Soooooo sorry but I only understood part a and c.

sorry

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3 years ago
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