Answer:
Step-by-step explanation:
This is a quartic equation with a positive coefficient for x^4 so it is shaped like an M xo ir rises to both the left and the right.
x - y = 14
given the ratio x : y = 5 : 3
then let x = 5x and y = 3x, hence equation can be expressed as
5x + 3x = 56
8x = 56 ( divide both sides by 8 )
x = 7
Hence x = 5 × 7 = 35 and y = 3 × 7 = 21
Thus x - y = 35 - 21 = 14
Answer:
x > -1
Step-by-step explanation:
![8-2x < -x+9\\8-2x-8 < -x+9-8\\-2x < -x+1\\-2x+x < -x+1+x\\-x < 1\\\left(-x\right)\left(-1\right) > 1\cdot \left(-1\right)\\x > -1](https://tex.z-dn.net/?f=8-2x%20%3C%20-x%2B9%5C%5C8-2x-8%20%3C%20-x%2B9-8%5C%5C-2x%20%3C%20-x%2B1%5C%5C-2x%2Bx%20%3C%20-x%2B1%2Bx%5C%5C-x%20%3C%201%5C%5C%5Cleft%28-x%5Cright%29%5Cleft%28-1%5Cright%29%20%3E%201%5Ccdot%20%5Cleft%28-1%5Cright%29%5C%5Cx%20%3E%20-1)