-2(-2)^4 + 5(-2)^2 - 4
-2(-2)= 4. 4^4= 16
5(-2)= -10. -10^2= 100 - 4= 96
96 + 16= 112
Answer: 112
I can’t answer it doesn’t have enough information
Answer: 61725
Listen, I'm happy to help you cheat, but couldn't you have just ran this through a calculator? It's not that hard.
Answer:
B. 3m-18n
Step-by-step explanation:
5m+3n-5m+3(m-7n)
=5m+3n-5m+3m-21n
=3m-18n
Answer:
Jennifer
4/15 mph
Step-by-step explanation:
First, we find the two speeds in miles per hour.
Victoria:
1 1/5 mile per 1/2 hour = (1 1/5 mile)/(1/2 hour) = 2 2/5 mph = 2.4 mph
Jennifer:
2/3 mile per 1/4 hour = (2/3 mile)/(1/4 hour) = 8/3 mph = 2 2/3 mph
2 2/3 mph > 2 2/5 mph, so Jennifer's speed is greater.
The difference in speeds in mph is:
2 2/3 - 2 2/5 = 2 10/15 - 2 6/15 = 4/15
