Answer: a...
Step-by-step explanation: wait for someone to answer in case i am wrong on this.....
Answer: They are all equations except c, which is a formula.
Step-by-step explanation:
Answer:
63
Step-by-step explanation:
This is because 25% of 84 is 21. He knows how to play 21 songs. 84-21=63.
63 is how many songs he does NOT know how to play.
Answer:
height : 150 feet
Step-by-step explanation:
![\sf \sf tan(x)= \dfrac{opposite}{adjacent}](https://tex.z-dn.net/?f=%5Csf%20%5Csf%20tan%28x%29%3D%20%5Cdfrac%7Bopposite%7D%7Badjacent%7D)
using tan rule:
![\hookrightarrow \sf tan(62)= \dfrac{b}{80}](https://tex.z-dn.net/?f=%5Chookrightarrow%20%5Csf%20tan%2862%29%3D%20%5Cdfrac%7Bb%7D%7B80%7D)
![\hookrightarrow \sf b = tan(62)*80](https://tex.z-dn.net/?f=%5Chookrightarrow%20%5Csf%20b%20%3D%20tan%2862%29%2A80)
![\hookrightarrow \sf b =150.46 \ feet](https://tex.z-dn.net/?f=%5Chookrightarrow%20%5Csf%20b%20%3D150.46%20%5C%20feet)