The line plot shows the ages of people taking a driving test at a certain station one day.
2 answers:
Answer:
The correct option is A) 32%.
Step-by-step explanation:
Consider the provided graph.
First count the total numbers of dots on the number line:
3+4+1+2+5+1+4+2+1+2=25
Now we need to find the percentage of the people are 18 or younger.
The Number of people who are 18 or younger than:
3+4+1=8
Thus 8 out of 25 are 18 or younger than.
Now find the percentage as shown:
Hence, 32% are 18 or younger than.
Thus, the correct option is A) 32%.
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Although, here are no expressions ! it's an incomplete question. So, showing the answer with general simplification .
<u>Step-by-step explanation:</u>
We have the expression as (5.4x10^10) (3.3x10^21) which can be further simplified as :
⇒(5.4x10^10) (3.3x10^21)
⇒
keep the power terms together and numbers to simply. Hence, we get as below
⇒
⇒
By solving the above, we get final simplified answer as
⇒
Although, here are no expressions ! it's an incomplete question . You may match to the listed options wherever!
Answer:
Problem 2):
which agrees with answer C listed.
Problem 3) : D = (-3, 6] and R = [-5, 7]
which agrees with answer D listed
Step-by-step explanation:
Problem 2)
The Domain is the set of real numbers in which the function (given by a graph in this case) is defined. We see from the graph that the line is defined for all x values between 0 and 240. Such set, expressed in "set builder notation" is:
Problem 3)
notice that the function contains information on the end points to specify which end-point should be included and which one should not. The one on the left (for x = -3 is an open dot, indicating that it should not be included in the function's definition, therefor the Domain starts at values of x strictly larger than -3. So we use the "parenthesis" delimiter in the interval notation for this end-point. On the other hand, the end point on the right is a solid dot, indicating that it should be included in the function's definition, then we use the "square bracket notation for that end-point when writing the Domain set in interval notation:
Domain = (-3, 6]
For the Range (the set of all those y-values connected to points in the Domain) we use the interval notation form:
Range = [-5, 7]
since there minimum y-value observed for the function is at -5 , and the maximum is at 7, with a continuum in between.