Question

5 * ( lg625 / lg25 ) = ?

Answer 1

Lg625=lg(25*25)=lg(25)²=2lg(25), тогда lg625/lg25=2 и 5*2=10. Ответ:10

Answer 2

To calculate the expression 5 * (lg625 / lg25), we need to evaluate the logarithms and perform the division and multiplication.

First, let's calculate the logarithms:

lg625 = log base 10 of 625 = 2.796574

lg25 = log base 10 of 25 = 1.39794

Next, let's divide lg625 by lg25:

lg625 / lg25 = 2.796574 / 1.39794 = 1.998

Finally, multiply the result by 5:

5 * 1.998 = 9.99

Therefore, 5 * (lg625 / lg25) is approximately equal to 9.99.