It's M to the exponent of -3...? It means you multiply M by itself -3 times.
So √175=√25×7=√25×√7=5√7 . We cannot further simplfy √7 so we'll simplify the other square root.
66. Tip: subtract all known angles from 360 to find unknown angle
I believe it is choice B.
The center is at 2,-6 and the radius is 2.
Answer:
90 mph
Step-by-step explanation:
To get miles per hour (
), we just need to divide. 
gives us 
, meaning the train travelled 90 miles in one hour. This is the same as going 90 mph. Hope that explained things :)
