Answer:
Only A. a=3
Step-by-step explanation:
Because since 7+a<11 then that means a have to be 3 or below... good luck!
Answer:
Step-by-step explanation:
I'm not sure how to solve the first one, but I'll try to simplify sqrt3-1/sqrt3+1. I simplified it and I got 2-sqrt3. Does that help?
For question 2, I got -0.251.
Answer:
He should leave by 10:30 a.m
Step-by-step explanation:
If he drives 60 miles per hr it will take him 270÷60=4.5 (4 n half) hrs to reach there.
If he want to be there at 3p.m he should leave by 10:30 a.m