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laila [671]
2 years ago
8

pls help i hate math. three forces act on an object. one force pulls right with 60n. the second pulls left with 30n. the third p

ulls left 20n. what is the net force?
Mathematics
1 answer:
inn [45]2 years ago
5 0

Answer:

20 is.the net force act in object

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The time, t, required to complete a job
tigry1 [53]

Answer:

19 hrs

Step-by-step explanation:

t varies inversely with number of people p

t = k/p

If it takes 7.125 hrs for 8 workers to do the job

K = tp

= 7. 125 x 8

= 57

How many hours will it take if there are 3 workers .

Recall t = k/p

t = 57/3

= 19 hrs

Therefore, It’ll take 19 hrs to Complete the job if there are only three workers.

3 0
3 years ago
A rectangular prism has a length of 11 mm and with a 5 mm. Its height is double its weight. What is the surface area of the pris
kkurt [141]

Answer:

C. 430

Step-by-step explanation:

length: 11

weight: 5

height (double of weight): 10

2 * (5 * 11 + 10 * 11 + 10 * 5)= 430

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3 years ago
The angles measures x and 4x are complementary angles. Which is the value of x?
Hitman42 [59]

<u>Answer:</u>

The angles measures x and 4x are complementary angles. The value of x is 36 degrees

<u>Solution:</u>

Given, two angles are x and 4x

We have to find the value of above given x  

We are also given that, given two angles are complementary angles for each other

So, we know that, <em>sum of any two complementary angles will always be equal to 180 degrees </em> 

Then, in the problem given,

x+4 x=180 \rightarrow 5 x=180 \rightarrow x=\frac{180}{5} \rightarrow x=36

Hence the angles measures x and 4x are complementary angles. The value of x is 36 degrees

3 0
3 years ago
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How much would you pay for Light Oak wood floors at $2.76 per sqft for a room that is 14 X 16?
Alchen [17]

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$618.24

Step-by-step explanation:

The area of the room is 224. Then for each square feet is 2.76 do multiplying that you get the answer.

8 0
2 years ago
Complex number 5+the square root of -9
Elden [556K]
A raiz de -9 = a +-3 
ou seja 5+3=8
5-3=2
6 0
3 years ago
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