.......the answer is 7.26
The average speed is 52.6 miles/hour.
Step-by-step explanation:
Given,
The distance (D) = 389.24 miles
Time (T) = 7.4 hours
To find the speed
Formula
Distance = Speed × Time
Now,
Speed = 
= 
miles/ hour
= 52.6 miles/ hour
Hence, the average speed is 52.6 miles/hour.
Answer:
a=9 , b=14
Step-by-step explanation:
Just do the operation (x+7)(x+2)
x(x)+x(2)+7(x)+7(2)
x^2+2x+7x+14
x^2+9x+14
So a=9 and b=14
... undergoes development throughout the course of the story. They're dynamic, and change as the plot progresses.
Answer: 62.
Step-by-step explanation: The mean is the average. In order to find the average, we need to add all of the numbers up, then divide by the number of quizzes. So:
20 + 40 + 40 +40 + 60 + 60 + 60 + 60 + 80 + 80 + 80 + 80 + 100 = 800
800 / 13 = 61.5, appr. 62.
