Answer: -1
Step-by-step explanation:
Subtract each fraction by each other than simplify
2.47 + 7.1
7.1 + 2.47
9.57-7.1
9.57-2.47
Answer:
91
Step-by-step explanation:
Multiplication first, so 7x4 = 28
28+63=91
A: 540 steps in one
B: 111 bc it’s different two
Answer:
7x2 + 14x = 0
x2 + 3x -5 = 0
x2 - x = 3x + 7
Step-by-step explanation:
A quadratic equation has the highest power of x to the second power. It must have x to the second power
7x2 + 14x = 0 quadratic
x3 - 3x2 + 1 = 0 not quadratic but cubic
5x - 7 = 0 not quadratic but linear
x2 + 3x -5 = 0 quadratic
x - 5 = 9x + 7 not quadratic but linear
x2 - x = 3x + 7 quadratic