Question

In the equation 3 x sqr(t) = 39, t equals:

a) 13
b) 169
c) 26
d) sqr(13)
e) 9

Answer 1

b

Explanation:

3
`√(t)` = 39 ( square both sides to clear the radical )

( 3
`√(t)` )² = 39² , that is

9t = 1521 ( isolate t by dividing both sides by 9 )

t =
`(1521)/(9)` = 169