We use the trigonometric function for this case. An escalator is an inclined path. We form a right triangle since we have given the value of the height. The height from the first floor to second floor is called the adjacent while the travelled distance of the people is called the hypothenuse. We use cosine function because we are given in terms of adjacent and hypothenuse. The ratio of cosine function is
cos x = a/h
where x is the angle
Solving for h,
h = a/(cos x) = 21/(cos 30) = 24.25 ft
Answer:
2>x
y>-1
Step-by-step explanation:
assume y=0 when finding x and vice versa
Answer:
$2.60 per towel
Step-by-step explanation:
15.60 devided by 6 =2.60
It is the first equation, 3x-y=-7.
It is the only equation that both sets of points satisfy as true.
Answer:2000
Step-by-step explanation:2500x0.2=500
2500-500=2000