Rewrite the rational exponent as a radical. (5 3/4) 2/3
3 square root 2 over 5
12 square root 5
square root 5
3 square root 5 over 4

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain