dont use chegg Problem 1: Significant DigitsChoose the correct answer for each calculation.Part AArea of a circle with radius 5.00 cm, where A = ².8x10¹ cm²79 cm²78.5 cm²78.54 cm²Part BTotal weight of elevator (1.23×10³ lb), one person (148 lb), and one cart (10.5 lb).1,400 lb1,390 lb1,389 lb1,388.5 lb

Answered: Problem 1: Significant Digits Choose…

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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Question

dont use chegg

Problem 1: Significant Digits
Choose the correct answer for each calculation.
Part A
Area of a circle with radius 5.00 cm, where A = ².
8x10¹ cm²
79 cm²
78.5 cm²
78.54 cm²
Part B
Total weight of elevator (1.23×10³ lb), one person (148 lb), and one cart (10.5 lb).
1,400 lb
1,390 lb
1,389 lb
1,388.5 lb

Expert Solution

Step 1: In this step we will mention given details.

Solution-

A) Radius of the circle (r)=5.00 cm

$A r e a equals straight pi asterisk times straight r squared put space straight pi equals 3.14 straight A equals 3.14 asterisk times 5 asterisk times 5 space cm squared straight A equals 25 asterisk times 3.14 space cm squared straight A equals 78.5 space cm squared Option space straight C space is space correct.$