Q: Find the area of each triangle:

Area of Δ=21×b×hArea of Δ=21×5×10Area of Δ=25 yd2

Question 1

Construct a box-and-whisker plot for the set of data:The number of posters various students have in their rooms is 3,2,1,0, 2,3,4,2,5,0, and 2 . Construct a box-and-whisker plot for the data. What do the lengths of the parts of the plot tell you?

Accepted Answer

The data between the median and the upper and lower quartile are more spread out than compared to any other part of the box-and-whisker plot because the length of this section is longer than any other section. The data in the other sections are equally spread out because of their lengths.

Question 2

Which pizza was chosen by about twice as many people as supreme?

Accepted Answer

Pepperoni was chosen by about twice as many people as supreme.

Question 3

Use the histogram at the bottom:How large is each interval?

Accepted Answer

Each interval is 5 seconds large.

Question 4

Use the histogram at the bottom:What was the most likely time?

Accepted Answer

Most runners were in the 60−64 interval.

Question 5

Display the number of pages read in a stem-and-leaf plot: 12,15,17,20, 22,22,23,25,27, and 35.

Accepted Answer

The tens digits form the stems, and the ones digits form the leaves.

Question 6

The graph shows the number of points scored in the first twelve hockey games. What is the average number of points scored so far this season?

Accepted Answer

The graph shows the number of points scored in the first twelve hockey games.Total number of points scored = 20Total hockey games= 12Average number of points scored so far this season=1220​=1.7 points per game.

Question 7

Use the graph to find the average test score.

Accepted Answer

Add the test scores: 73+83+79+91+ 88+84+96+93 or 687Divide: 8687​ or 85.9So, the average test score was 85.9.

Question 8

Use the scatter plot to describe the relationship between flower height and water received.

Accepted Answer

The graph shows no obvious patterns. So, there is no relationship.

Question 9

Select an appropriate display to show individual student's Calorie intake for lunch in numerical order.

Accepted Answer

Stem and-leaf plot

Question 10

Select an appropriate display for the number of Olympic sprinters compared to the total number of athletes. Explain.

Accepted Answer

A circle graph would be appropriate because you are comparing a part to the whole.

Question 11

Find the area of each triangle:

Accepted Answer

Area of Δ=21​×b×hArea of Δ=21​×5×10Area of Δ=25 yd2

Question 12

Find the area of each triangle:

Accepted Answer

Given.​ Base =17 mm height =9 mm​Area of Δ=21​×b×hArea of Δ=21​×17×9Area of Δ=76.5 mm2

Question 13

Anita's yard is in the shape of a triangle. It has a height of 35 feet and a base of 50 feet. What is the area of the yard?

Accepted Answer

Area of Δ=21​×b×hArea of Δ=21​×35×50Area of Δ=875 ft2

Question 14

Find the area of the triangle:

Accepted Answer

A=21​×b×h A=21​(12)(5) A=21​(60)A=30 The area of the triangle is 30 square inches.

Question 15

Find the area of each circle. Use 3.14 for π. Round to the nearest tenth:

Accepted Answer

Diameter =24 mmr=2d​=12 mm​A=πr2=3.14(12)2=3.14×144⇒452.16=452 mm2​

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