What is the cube root of 857375 ?
2 points
95
85
75
65
Answers
Answered by
1
Answer:
95 is correct answer
Step-by-step explanation:
we have,
857375.
this can be written in the estimation technique by grouping 3 numbers in each group
group
2 group
1
857 375
___ ___
the cube root of a perfect cube ending with 5 will have 5 in units
857375 will have 5 in units place.
Moving to the second step,
which says that it should lie between cubes of two consecutive number and the tens digit should be counted while considering the smaller cube
we have 857.
it lies between the cube of 9 and 10
{9}^{3} = 729 < 875 < {10}^{3 } = 10009
3
=729<875<10
3
=1000
therefore,
the tens digit will be 9
therefore,
\sqrt[3]{857375 } = 95
3
857375
=95
Answered by
0
Step-by-step explanation:
95 is correct answer........
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