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Chapter 11: Q. 19 (page 624)

Find the surface area of the prism, cylinder, or pyramid. Round to the nearest whole number.

Short Answer

Expert verified

The surface area is 90 square centimetres.

Step by step solution

01

Step 1. Given Information.

The figure is shown below.

02

Step 2. Formula used.

Areaofpyramid=b2

Areaoftriangle=12×base×height

03

Step 3. Calculation.

Evaluate the area of four slant sides of pyramid.

Area1=4×12×4×85=885

Calculate the area of the base of pyramid.

Area2=4×4=16

Total surface area (A) of cylinder is equal to the sum of Area1and Area2.

A=16+885=90

04

Step 4. Conclusion.

The surface area of pyramid is 90 square centimetres.

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Most popular questions from this chapter

A theatre group handed out cards at its last performance to gather information about the ages of people who attend the group’s performance. The histogram shows the results of the survey.

  1. What percent of people who attended the show were under 30 years old? Round your answer to the nearest percent.
  2. In which age group does the median age fall? Explain.
  3. The theatre group advertise its performance on the ratio. Should the group advertise on a station that younger adults like or one that older adults like? Explain.

Tell which data display(s) you could use to display the data. Explain why.

The heights (in meters) of different palm trees.

Clothing Prices, The table lists the prices of a set of comparable items of women’s and men’s and men’s clothing in 9 different cities.

  1. Make box-and-whisker plots for the women’s and men’s data.
  2. How do the prices in Houston compare with the rest of the cities for both women’s and men’s clothing? Explain your reasoning.
  3. Interpret, would you say women’s clothing prices or men’s clothing prices vary more in the cities in the survey? Explain your reasoning.

    City

    Women’s

    Men’s

    New York

    \(690

    \)1190

    Los Angeles

    \(450

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    Chicago

    \(590

    \)1100

    Houston

    \(440

    \)900

    Paris

    \(430

    \)700

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    \(350

    \)660

    Toronto

    \(310

    \)850

    Tokyo

    \(760

    \)1050

    Mexico City

    \(380

    \)620

A survey was conducted to find the percent of Americans who enjoy camping. The surveyor randomly selected 20 individuals from each of the 50 states and asked, “DO you enjoy, greatly enjoy, or not enjoy camping in the woods, where the air is fresh and clean?” How much should you trust the results of this survey?

  1. Identify the sampling method and population.
  2. Do you think the sample chosen was representative of the population? Explain.
  3. Do you think the question is biased? If so, explain how it would affect the results of the survey.

The manager of an apartment building wants to know if noise is a problem in the building. The manager asks one person on each floor if the person thinks noise is a problem.

  1. Describe the survey’s population and sampling method.
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  3. Describe another sampling method the manager could use. Could this method result in a biased sample? Explain.
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