One way to choose a representative sample in a survey is to select a very small sample from a population. select people at random from a population. obtain informed consent from subjects. place all the subjects in the control group.

Describe what happens in the algebraic solution of a system of equations whose graphs are parallel lines.

551 rounded to the nearest hundreth

A jar of coins contains dimes, pennies, and quarters. There are 220 pennies in the jar. There are 3 quarters for every 4 pennies, and there is 1 dime for every 3 quarters. How many dimes and quarters are in the jar? A. 55 dimes and 165 quarters B.

14.63 as a mixed number

Comparing to Internet service plans plan one cost $34.99 per month plan to cost $134.97 every three months if Crystal plans to stay with one service plan for one year which should she choose how much will she se comparing to Internet service plans

The sum of three consecutive integers is - 255. what are they?

How many two third ounce can be made with 8ounces

Written as a simplified polynomial in standard form, what is the result when (3x + 1) 2 is subtracted from 8?

Every two days he's trying to spend 1.75 hours observing dolphins and 2.5 hours observing sea lines at this rate how many total hours will the scientist spend a observing dolphins and sea lions in 10 days

An expression is given: x (-1.8-6y) Use the distributive property to expand the expression.