Answer:
The difference of two cubes is equal to the difference of their cube roots times a trinomial, which contains the squares of the cube roots and the opposite of the product of the cube roots. A number's opposite is that same number with a different sign in front.
Step-by-step explanation:
Answer: She's used 630 minutes.
Step-by-step explanation:
She has 1400 minutes.
She used 45% of them.
1. Convert 45% to decimals. You can do by dividing by 100.
2. Multiply by the total amount of minutes.
Midpoint = sum of x and y, divide by 2
Sum of x: 6 + 2 = 8/2 = 4
Sum of y: -5 + 1 = -4/2 = -2
The mid point is (4,-2)