Answer:
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
To find a percent of a number, change the percent to a decimal and multiply by the number. To change a percent to a decimal, move the decimal point of the percent two places left.
30% of 90 =
= 30% * 90
= 0.30 * 90
= 27
This is the concept of trigonometry, the value of x will be calculated as follows;
sin theta=[opposite]/[hypotenuse]
theta=x
opposite=16 units
hypotenuse=21 units
thus;
sin x=16/21
hence;
x=arcsin(16/21)
x=49.63
x=50 (to the nearest degrees)
IMA = length/height = (3 m)/(1.5 m) = 2
The Ideal Mechanical Advantage of the ramp is 2.
