Answer:
The inverse is ±sqrt(100-x)
Step-by-step explanation:
To find the inverse, exchange x and y
x = 100 -y^2
Solve for y
Subtract 100 from each side
x - 100 = -y^2
Divide by -1
-x +100 = y^2
Take the square root of each side
±sqrt(100-x) = sqrt(y^2)
±sqrt(100-x) =y
The inverse is ±sqrt(100-x)
Answer:
I think it's 6 but I'm not 100% sure sorry
Answer:
20x-10
Step-by-step explanation:
Cows have
legs and 3 toes on each leg, if we want to find the number of toes of ONE cow we have to multiply the legs by the toes giving the following:
![3(x+3) \quad (1)](https://tex.z-dn.net/?f=3%28x%2B3%29%20%5Cquad%20%281%29)
But we have two cows so (1) we have to multiply it by 2 giving a total of:
![2(3(x+3))\\6(x+3)\\6x+18 \quad (2)](https://tex.z-dn.net/?f=2%283%28x%2B3%29%29%5C%5C6%28x%2B3%29%5C%5C6x%2B18%20%5Cquad%20%282%29)
By the other hand chickens have
legs and 7 toes on each leg, if we want to find the number of toes we have to multiply the legs by the toes giving the following:
![7(2x-4)\\14x-28 \quad (3)](https://tex.z-dn.net/?f=7%282x-4%29%5C%5C14x-28%20%5Cquad%20%283%29)
To find the total amount of toes we have to add (2) and (3)
![(6x+18)+(14x-28)\\20x-10](https://tex.z-dn.net/?f=%286x%2B18%29%2B%2814x-28%29%5C%5C20x-10)
Answer:
x= - ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
Step-by-step explanation:
Given
- 6x + 9 - 4x = 14, that is
- 10x + 9 = 14 ( subtract 9 from both sides )
- 10x = 5 ( divide both sides by - 10 )
x =
= - ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
Answer:
0.278
Step-by-step explanation: