Two forces of 545 n and 218 n act at a point. the resultant force is 619 n. find the angle between the forces

90.93 degrees

Step-by-step explanation:

Let us consider the angle between two forces .

As per the parallelogram rule we know that the sum vector is along the diagonal of the parallelogram, splitting the parallelogram into two triangle with sides of lengths 545 N, 218 N, and 619 N. The angle opposite to the side of length 619 is (π - θ) radians. Now apply the law of cosines to finish.

Therefore, the angle between two forces is 90.93 degrees.

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5

unless you made a typo, the answers are both a and c.

step-by-step explanation:

1.5/3 is .5 whereas 3/9 is .3333333 not proportional

22/33 is .66666 and 4/6 is also .66666 proportional

2/4 is .5 whereas 142/213 is .66666 not proportional

14/7 is 2 and 7/3.5 is also 2 proportional

you could've also checked it by doing this simple division:

if the larger fraction divides with the smaller fraction to equal 1, it is proportional. so let me show you what i mean:

when i divide 22/33 by 4/6 i get 1, so we know it is proportional, and it is the same with 14/7 and 7/3.5. now if i divide 3/9 by 1.5/3 i get .66666 so therefore we know it is not proportional.

there are many ways to do this so i wanted to show you some possible ways.