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Harrizon [31]
3 years ago
5

Determine whether the forces are pulling at right angles to each other. Explain. 3.5 lb, 6.2 lb, resultant force 9.1 lb

Mathematics
1 answer:
8_murik_8 [283]3 years ago
7 0
The resultant force in this item, is that which connects the heads of the magnitude of the given vectors. The magnitude of the resultant force can be calculated through the Pythagorean theorem which states that the square of the resultant force should be equal to the sum of the squares of the smaller forces. That is,
          A² + B² = C²

Investigating the vector values, 
 A² + B² = (3.5 lb)² + (6.2 lb)² = 50.69 lb²
C² = (9.1 lb)² = 82.81 lb²

Since the Pythagorean theorem is not satisfied by the given set of forces then, the forces are not in right angle. 

The answer to the question is letter C. 
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Alalalalalalalalalalalalalallalalalalalalalalalalalalalalalal
saveliy_v [14]

Answer:

-4

Step-by-step explanation:

There are many methods to solve this system of equations.

I will use the elimination method.

First step:

Multiply the first equation by -2

2(2x-3y) = -14(-2)

-4x + 6y = 28

Multiply the second equation by 3 so you can eliminate the y term

3(3x-2y) = -6(3)

9x-6y = -18

Second step: Add the equations vertically(Basically adding like terms)

-4x+6y = 28

     +

9x - 6y = -18

5x = 10

Third step: Solve for x

\frac{5x}{5}  = \frac{10}{5}

x = 2

Substitute the x-value into any of the original equation to get the y value

3(x) - 2y = -6

3(2) - 2y = -6

6 - 2y = -6 (Since we are solving for y, it will be isolated and we will move 6 to the other side)

-2y = -6 - 6(Moving 6 to the other side makes it negative)

Solve for y by dividing by -2

\frac{-2y}{-2} = \frac{-12}{-2}

y = 6

So (x, y) = (2, 6)

Since the question is asking to subtract x and y

2-6 = -4

3 0
2 years ago
The photo contains the question​
Sladkaya [172]

Answer:

all the answers are there in safari and also can refer to your text book

Step-by-step explanation:

8 0
2 years ago
What is 1.8 divided by 7.74<br> What is 56.4 divided by 4.7 please explain
Angelina_Jolie [31]
1.8 divided by 7.74 is 0.23 .
And 56.4 divided 4.7 is 12 .
4 0
3 years ago
Is 1709 divisible by 2,3,5,6,9
coldgirl [10]
Hey mate!
Let's figure this out!

The answer is false.

1709 / 2 = 854.5
1709 / 3 = 569.6
1709 / 5 = 341.8
1709 / 6 = 184.8
1709 / 9 = 189.8


Hope this helps! :)

6 0
2 years ago
Read 2 more answers
I was wondering what the answer to these problems is?
alina1380 [7]
The first one is 4
Second is 5/9
Third is 1/2
Fourth is 11
7 0
2 years ago
Read 2 more answers
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