Answer:
-8/45
I hope this helped!
Step-by-step explanation:
-2/3 ÷ 3 3/4
Answer:
idk
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
The mechanical advantage of a machine is the ratio of the force that you need to input to how much is outputted. 200:1000=1:5, meaning that the mechanical advantage is 5. Hope this helps!
To not depend on anyone else
Answer:
a person travel 50 ft from the bottom to the top of the escalator
Step-by-step explanation:
An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30 degree angle
The escalator forms a right angle triangle
opposite to 30 degree angle is 25 feet. to find the distance from the bottom to the top of the escalator we find the hypotenuse
let x be the hypotenuse
![sin(theta)=\frac{opposite}{hypotenuse}](https://tex.z-dn.net/?f=sin%28theta%29%3D%5Cfrac%7Bopposite%7D%7Bhypotenuse%7D)
![sin(30)=\frac{25}{x}\\x sin(30)= 25\\x=\frac{25}{sin(30)} \\x=50\\](https://tex.z-dn.net/?f=sin%2830%29%3D%5Cfrac%7B25%7D%7Bx%7D%5C%5Cx%20sin%2830%29%3D%2025%5C%5Cx%3D%5Cfrac%7B25%7D%7Bsin%2830%29%7D%20%5C%5Cx%3D50%5C%5C)
a person travel 50 ft from the bottom to the top of the escalator