Answer:
A) B is greater
B) when C = 21, A = 5 and B = 15
C) A must be 0, 5, or 12 for C to be greater than B
Step-by-step explanation:
A) when a = -3, c = -20 and b = 4(-3)-5 so B = -17
B) when c = 21, a = 5 and b = 4(5)-5 so B = 15
C) C is greater than B when a = 0, 5, and 12
when a = 0, b = 4(0)-5 or -5
when a = 5, b = 4(5)-5 or 15
when a = 12, b = 4(12)-5 or 43
Y=x. I hope that this helped! Good luck! :)
Answer:
![5\sqrt{2}](https://tex.z-dn.net/?f=5%5Csqrt%7B2%7D)
Step-by-step explanation:
To rationalize the denominator, you need to multiply the numerator and denominator by the radical in the denominator (aka. a factor of 1):
![\frac{10}{\sqrt{2}}](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7B%5Csqrt%7B2%7D%7D)
![\frac{10}{\sqrt{2}}*\frac{\sqrt{2}}{\sqrt{2}}](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7B%5Csqrt%7B2%7D%7D%2A%5Cfrac%7B%5Csqrt%7B2%7D%7D%7B%5Csqrt%7B2%7D%7D)
![\frac{10\sqrt{2}}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B10%5Csqrt%7B2%7D%7D%7B2%7D)
![5\sqrt{2}](https://tex.z-dn.net/?f=5%5Csqrt%7B2%7D)
Put this in your calculator or use pictures if you'd like. (3/4) x 12 and you'll get 9