1.

Please this is the second time I am asking these questions. Please someone should help me out

Answer»

Answer:

1)5

2) 2

3)6

4)N2

Step-by-step explanation:

1) addition is 57 ROUNDING off to one significant digit will be 5

2) SUBTRACTION is 28 one digit rounding off will give us 2

3) (15/4) + (5/2 )= 25/4 = 6.125 = 6

4) N2

5) 3.8 is subtraction .rounding off to one significant digit will give 3



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