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Vanyuwa [196]
3 years ago
13

Can you help me please for number 8

Mathematics
1 answer:
forsale [732]3 years ago
6 0
Sure... what's number 8????
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Samuel is preventing a boulder from rolling down a hill with a slope of 35°. If the boulder
Rashid [163]

Answer:

1,809.98 lb*m/s^2

Step-by-step explanation:

First, we want to know how much weight of the boulder is projected along the path in which the boulder can move.

The weight of the boulder is:

W = 322lb*9.8 m/s^2 = (3,155.6 lb*m/s^2)

This weight has a direction that is vertical, pointing downwards.

Now, we know that the angle of the hill is 35°

The angle that makes the direction of the weight and this angle, is:

(90° - 35°)

(A rough sketch of this situation can be seen in the image below)

Then we need to project the weight over this direction, and that will be given by:

P = W*cos(90° - 35°) = (3,155.6 lb*m/s^2)*cos(55°) = 1,809.98 lb*m/s^2

This is the force that Samuel needs to exert on the boulder if he wants the boulder to not roll down.

3 0
3 years ago
A house has increased in value by 37% since it was purchased. If the original value was $720, 000, what is the value after the i
STALIN [3.7K]

Answer:$986,4000



Step-by-step explanation:

8 0
2 years ago
What is the inequality of this graph?
Over [174]

Answer: y < 3x -4

Step-by-step explanation:

We know two points of line: (0,-4) and (1,-1)

Therefore, we can find the slope: 3/1.

We know the y intercept.

Dashed line means the inequality is not apart of the region.

y < 3x-4

7 0
3 years ago
A harris poll found that 35% of people said that they drink a caffeinated beverage to combat midday drowsiness. a recent survey
AysviL [449]
No it's not believable.
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Like terms are terms that have the same A.)numbers or B.)variables
lana66690 [7]

Answer:

B) variables

Step-by-step explanation:

7 0
3 years ago
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