2.000 electric bulbs arc installed in various offices of an organization. The bulbs have a mean life of 1,000 working hours with a variance of 40.000 hours. Now many bulbs may fail between 800 hours and 1.100 working hours?

Which number produces a rationale number when multiplied by 1/5

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

Asap! i'm not good math and i'm lost.