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Add 589 and 1023, round off the answer to 3significant figures
a) 161    
b) 1612                  
c) 1610  
d) 1609

c

Estimate 11.5 - 0.76 by rounding off each number to 1 s.f.
a) 10       
b) 11                       
c) 9.2      
d) 13

c

……..are the numbers of figures that indicate the accuracy of any calculation or measurement.
a) final number                    
b) digits
c) significant figure           
d) last digit

c

What is the number 75.66852 rounded off to 5 significant digits?
a) 75.67                 
b) 75.669
c) 75.668                                               
d) 75.667

b
Comments :

option c is correct

by at 2025-03-10 20:24:54

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The length of a cube is 2.3 cm. What is its volume rounded off to 4 significant digits in cm3?
a) 12.67 
b) 12.167               
c) 12.17 
d) 13

c
Comments :

explain plz

by at 2024-08-01 17:35:41

If we fine the volume of cube the Volume of cube = l³ = 2.3 ³ =12.167 If we round off 4 s.f It will become 12.17 The 4 s.f digit is 6 and the next number is 7 which is strong number so we add 1 to 6 and I will become 12.17

by at 2025-04-06 17:14:59

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How many significant digits are there in 25.33600?
a) 7         
b) 8                         
c) 5         
d) 6

a