f(x) = 
In this exponential function , the base is 
if base is less than 1 then it a decreasing function
We can verify it using a table
We plug in some x and values and find out f(x) to get point for the graph
x -----> f(x)
-1 -----> 2
0 ------> 1
1 -------> 0.5
The table is same as the points in first graph.
So first graph represents the graph of f(x) = 
Answer:
He must study for at least 7.5 hours each week
Step-by-step explanation:
Here, we want to know the number of hours that Mr Smith must study each week
From the question, we are told that he must study a minimum of 60 hours total over the course of the 8 weeks
The number of hours he must study each week will be 60/8 = 7.5 minimum number of hours each week
That depends on the total distance of the race, which you
have not bothered to mention.
If the team has exactly enough runners to run the entire race,
one at a time, then the number of runners needed is ...
(3) times (the total distance of the race, in miles) .
Tim has completed greater amount of work and overall they have completed 142/143 of the project work
Step-by-step explanation:
Given
Work completed by Jaime = j = 5/11
Work completed by Tim = t = 7/13
<u>a. Who has completed the greater amount of work?</u>
In order to see that we have to convert the fractions in decimal
So,
j = 5/11 = 0.45
t = 7/13 = 0.53
As we can see that the decimal for Tim's work space is large, Tim has completed greater amount of work
b. How much of the project have they completed together? Show your work.
We have to find the total work done by them

Hence,
Tim has completed greater amount of work and overall they have completed 142/143 of the project work
Keywords: Fractions, LCM
Learn more about fractions at:
#LearnwithBrainly
Answer:
Step-by-step explanation:
The slopes of the two lines (representing the speeds of the trains) are the same, and so the two trains are traveling at the same speed.