Answer:
60 mph
Step-by-step explanation:
mph=miles/hours
240/4=60
60 miles per hour
Answer:
Step-by-step explanation:
Rationalize the denominator of b. So, multiply the numerator and denominator by 

Now, find a +b

Combine like terms

Now find (a + b)²
(a +b)² = 

Hint: 
Answer: 95.40
Step-by-step explanation:
7.95*12=95.40
Answer:
r=3
Step-by-step explanation:
- The equation of a circumference is
. - Then , in this case
, and then to know the value of r we just simply have to calculate the square root of 9, which is 3.
67Answer:67
Step-by-step explanation: