Answer:
Graph A
Step-by-step explanation:
For each piece of the function the first number is included (0, 4, 8) and second number excluded (4, 8, 12). Included points are solid and excluded are open dots.
It's correctly reflected in A graph only.
$2,234.38 after 5 years and he will have to repay $9,384.38.
It took 3 days to complete a work by 10 people.
<h3>What is Efficiency?</h3>
The efficiency is the output of the work which we divide by the work input and then express it in a percentage form.
Here, Efficiency of 1 person to complete a piece of work in 30 days is 1/30.
The number of days to complete the work = n days
Number of person to complete the work = p.
Now, according to question
Number of days to complete the work by 10 people = 30 / 10
= 3 days.
Thus, it took 3 days to complete a work by 10 people.
Learn more about Efficiency from:
brainly.com/question/13828557
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Answer:
(b) It is symmetrical about 
Step-by-step explanation:
Given
See attachment for options
Required
True statement about the graph
First, we check the line of symmetric
Expand
Open bracket
A quadratic equation 
has the following line of symmetry
By comparison, the equation becomes:
Hence, the line of symmetry is at:
(b) is true.
