1. A cockroach covers a distance of 30 m in 1.5 minutes. What is the speed of cockroach?
Solution : Distance covered (s)= 30 m
Time (t)= 1.5 min = 90 s
S
30 m
Speed
..
= 0.33 ms-1
90 s
7

Iplay an instrument and i'm in band

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.