Answer:
3.2 miles per hour
Step-by-step explanation:
Time=75 minutes=75/60=5/4=1.25 hours
Speed=Distance/time=4/1.25=3.2 miles per hour
David's jogging rate is 3.2 miles per hour.
Given:
The inequality is

To find:
The value of x and then graph on the number line.
Solution:
We have,

Subtracting 19 from both sides, we get


It means all the real values of x which are less than or equal to 4 are in the solution set. So, an arrow approaches towards left from x=4 as shown in the below figure.
Constant because of the fact that it has a zero slope, so it will never decrease nor decrease.
Answer:
52
Step-by-step explanation:
2(4^2 + 10) =
We do what's in the parenthesis first.
4^2 = 16 and 16+10 =26.
2(26)
= 52