A researcher wants to survey people from different age groups to analyze voting patterns. Which type of survey will best accomplish this goal?

systematic random sampling

voluntary sampling

convenience sampling

stratified sampling

K divided by 2 is 40

How do you write an interger whose absolute value is greater than itself.

A sine function can be used to model light waves. Green light has a wave length, or period of about 510 nm. which equation best models green light? a. y = sin pi/510 theta b. y = sin pi/255 theta c. y = sin 510/pi theta d. sin 255/pi theta

Steve had $10 in his drawer. He put in an additional $5 before his parents doubled his money.

Convert the improper fraction to a mixed number. 17/3 = ? A - 3 1/3 B - 5 2/3 C - 6 1/3 D - 3 1/6

Write a quadratic equation with the roots 3/4 and - 5

A system of equations has no solution. If y=8x + 7 is one of the equations, which could be the other equation has no solution. If y=8x + 7 is one of the equations, which could be the other equation

How do you write down 6.24 divided by 2.4 showing work?

3x^3+3x^2-21x+4/x-2 long divide

Solve the equation b^2-13b+36=0