Which equation is equivalent to X/ +11 = 15
1 answer:
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Answer: D. (x+5)/(x-3)
Step-by-step explanation:
Domain = Set of all input values of a function.
range = set of all output values of a function.
Given: Domain: ; range =
We do not include a value for domain if it makes the expression indeterminant .
Since all the functions in options are fractions, here the denominator does not equal to 0.
But in option C and D, the denominator can be zero if x=3.
So , domain for then it
Also, for option C if
.which is not true.
Wher as in option D,
Hence, Domain: ; range =
is for option D.
Answer:
Assuming each class is filled to capacity, the average class size is 70.
Step-by-step explanation:
We have to find the weighted average of the number of students.
The weights are the number of classes.
We have that:
One class of 20 students
Eight classes of 60 students.
One class of 80 students.
Four classes of 100 students.
So
Assuming each class is filled to capacity, the average class size is 70.