Answer:
QOR =3Y
=3×30
=90°
ROS = 2Y
=2×30
=60°
Morgan's electronic car has a speed of 35.2 feet per second. How fast can the car travel in miles per hour?
1 answer:
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Answer:
Step-by-step explanation:
The sine of an angle is defined as the ratio between the opposite side and the hypotenuse of a given right-angled triangle;
sin x = ( opposite / hypotenuse)
The opposite side to the angle x is thus 1 unit while the hypotenuse is 3 units. We need to determine the adjacent side to the angle x. We use the Pythagoras theorem since we are dealing with right-angled triangle;
The adjacent side would be;
The cosine of an angle is given as;
cos x = (adjacent side / hypotenuse)
Therefore, the cos x would be;
Answer:
116.6 pounds
Step-by-step explanation:
Set up a proportion where x is the weight of her desk in pounds:
=
Cross multiply:
x = 116.6
So, her desk is 116.6 pounds