Answer:
The units are always squared. The area can be found when given the diameter by first finding the radius. Circumference can be used to find area.
Step-by-step explanation:
This distance should be 14.317821
You know this by plugging it into the distance formula which is
D=squareroot (x-x) +(y-y)
The first x and the first y should come from the same coordinate
Answer:
The answer is, " About 56% of those who prefer baseball are eight graders"
Step by Step Explanation:
Step 1: Turn 56% to a decimal, you get 0.56
Step 2: Multiply 0.56 by 68, the total amount of people who like baseball
Step 3 : you get 38.08 ( Don't mind the extra .08, just round )
Step 4 : You celebrate with a little victory dance!!!!!
Answer:
b. Invalid, because the sample may not be representative of the population.
Step-by-step explanation:
A sample of around 10% of the population is needed to be representative.
In this question:
We have a population of 500,000, and a sample of 10,000.
10,000/500,000 = 1/50 = 0.02 = 2% of the population, so not representative, and option b is correct.
