What number should be added to the expression x^2 + 4x to change it into a perfect square trinomial
1 answer:
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Answer:
Step-by-step explanation:
Recall the formula for the volume of a cylinder:
where R is the radius of the cylinder's base, and H is the cylinder's height.
Therefore, in our case the volume becomes:
Student attendance numbers were the same during which two weeks of the workshop? B. weeks 2 and 4
<h3>Explanation: </h3>A histogram is the graphical display of data by using bars of different heights. Histograms provide a visual interpretation of numerical data by indicating the number of data points that lie within a range of values. Histogram was first introduced by Karl Pearson in 1891.
Some histograms presented with the independent variable along the vertical axis and dependent variable along the horizontal axis. The histogram attached below shows the weekly attendance of participants in a school's study skills program. In the histogram the x axis is number of weeks and y axis is number of students in attendance.
According to the histogram attached we can see that in week 1 the Student attendance was 8, in week 2 the Student attendance was 12, in week 3 the Student attendance was 15, in week 4 the Student attendance was 12, in week 5 the Student attendance was 18, in week 6 the Student attendance was 16. Hence the Student attendance numbers are the same during week 2 and 4 of the workshop. Therefore the correct option is B
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