Tech 155 Week 1 Quiz | excelsior-college

Tech 155 Week 1 Quiz | excelsior-college

Question 1

8 - 25

-17  

-33 

33  

17

 

Question 2

|-9.8|  

0  

-9.8  

1/9.8  

9.8

 

Question 3

-6 - (-27) 

33 

-33  

21  

-21 

 

Question 4

|-1.7| 

1.7 

0

1/1.7 

-1.7  

 

Question 5

 (-5)3 - 42 ÷ (-6) 

167/6  

-118  

132  

-132

 

 Question 6

5/8 + 1/3 

6/11  

43/24  

23/24 

1/4

 

Question 7

 (1/9)*(1/5)  

9/5  

1/45    

45  

1/7

 

Question 8

4/21 – 2/21 

2/7 

1/3 

2/21  

1/2

 

Question 9

1/4  ÷ 6/7 

7/11  

3/14  

1/3  

7/24  

 

Question 10

(8/7) * (15/24)  

23/31 

64/35 

5/7   

16/11 

 

Question 11

Write as a percent: 0.241  

241% 

0.241% 

0.0241% 

24.1%  

 

Question 12

Write as a percent: 2/5  

20%  

1000%  

4%  

40% 

  

Question 13

Write as a decimal: 0.3%  

0.003 

0.03 

0.004

0.3 

 

Question 14

16.79 / 0.23 

3.862  

7.3 

73   

730

 

Question 15

What number is 27% of 90?  

24.3  

243 

48.6 

2.43 


Question 16

Simplify 125−−−√125  

255–√255  

11  

5  

55–√55  

 

Question 17

-122 

-24  

169  

-144  

144  

 

Question 18

Rationalize the denominator: −6/7–√−6/7 

(−66–√)/7(−66)/7 

−67–√−67 

-6/7  

(−67–√)/7(−67)/7  

 

Question 19

(-8)2

-64

16  

64   

-81

 

Question 20

Simplify 147−−−√147 

7  

73–√73   

493–√493 

12

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