Step-by-step explanation: For A: All you had to do was multiply -1(-3 2/5) and that was going to make your answer positive because the negatives were going to cancel each other out.

For B: First you had to make your fractions improper fractions instead of mixed numbers. And that would make it 9/4 + 17/5. Next, since they don't have the same denominator, you would have had to find the least common multiple of 5 and 4 which is 20. So then how ever many times your denominator went in to 20, that's what you'll multiply your numerator by. 45/20 + 68/20= 113/20

8 0

2 years ago

Find the average rate of change of f(x) = x over the interval [-10, -8]. Write your answer as an integer, fraction, or decimal r

Inessa [10]

Answer:

Step-by-step explanation:

7 0

10 months ago

Here is an expression: 2 + 3t

Dima020 [189]

2+3t
When t is 1
2+3(1)
2+3
5

When t is 4
2+3(4)
2+12
14

3 0