Answer:
![x=\frac{c^2y^2}{4}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7Bc%5E2y%5E2%7D%7B4%7D)
Step-by-step explanation:
![\frac{2\sqrt{x}}{c}=y\\\\2\sqrt{x}=cy\\\\\sqrt{x}=\frac{cy}{2}\\\\x=\frac{c^2y^2}{2^2}\\\\x=\frac{cy}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5Csqrt%7Bx%7D%7D%7Bc%7D%3Dy%5C%5C%5C%5C2%5Csqrt%7Bx%7D%3Dcy%5C%5C%5C%5C%5Csqrt%7Bx%7D%3D%5Cfrac%7Bcy%7D%7B2%7D%5C%5C%5C%5Cx%3D%5Cfrac%7Bc%5E2y%5E2%7D%7B2%5E2%7D%5C%5C%5C%5Cx%3D%5Cfrac%7Bcy%7D%7B4%7D)
6x + 6 > 3x+ 15
3x > 9
x > 3
Answer:
x = 62.3 degrees.
Step-by-step explanation:
We should notice a certain trigonometric function that works here.
tan x = opposite side / adjacent side
tan x = 40/ 21
x = arctan (40/21) = 62.3005 degrees
x = 62.3 degrees.
Answer:
part 1: A
part 2: A
Step-by-step explanation:
Part 1:
I think it is A (c ≤ 56), since it should be less than or equal to, due to it describing how many are left : 56 and less are left
B can't be right even though it is less than or equal to, since it says that -56 cans are left to collect: nonsense
Part 2:
A represents c ≤ 56
C represents c ≤ –56
B represents c ≥ 56
D represents c ≥ –56
thus, answer is A