Question

the number 670x1 is equal to 67100, correct to 3 significant figures. find the value of x if 670x1 is a perfect square?

Answer 1

Answer:

x = 8

Step-by-step explanation:

The number 670x1 is equal to 67100, correct to 3 significant figures

=> x ≥ 5

so possible numbers

67051

67061

67071

67081

67091

√67081 = 259

=> 67081 is perfect square

hence value of x = 8

=> x = 8