The correct answer is 14.2 lb which is choice D.
Let:
F = minimum force required to prevent ball from rolling down the ramp
The formula will be:
F = w * sin theta
F = w * sin (39 degrees)
F = 22.6 * sin (39)
= 14.2 lb (this is rounded to the nearest tenth)
Kilo = 1,000
Hecto = 100
Deca = 10
Base (unit) = 1
Deci = 0.1
Centi = 0.01
Milli = 0.001

Actually Welcome to the Concept of the Symmetry,
Option A.) is correct,
=> N has only the Rotational Symmetry.
step.1 turn both of the numbers into fraction
24x8=192, because 8 out of 8 is 1. Plus one equals to 193/8
1x2=2 plus 1 equals to 3. 3/2
step.2 turn the bottom numver the same
because 2x4 is 8 from the bottom
3x4 is 12 so the lemonade she sampled is 12/8
step.3 substract
193/8-12/8you keep the bottom the same substract the top.
193-12
the answer is : 181/8
Answer:
This is assuming that both x and y do not equal zero, if that is necessary information. 1 minute ago Solve for x in the equation x squared minus 14 x + 31 = 63.