Answer:
1.6 please correct me if im wrong by commenting
Step-by-step explanation:
1: Bettina's 60, and Melvina's 20.
2: 4.5 gallons
x^2 − 8x + 9
What two numbers when multiplied yield 9 but when added yield -8?
There are no such numbers.
Use the quadratic formula.
Answer:
Yes repetition is permitting in permutations/combinations. It depends on the problem. For example a password being "555" is allowed. But in a race, racers logically can not repeat.
Step-by-step explanation:
