What is a placebo and why is it important in an experiment to test the effectiveness of a drug

Given the system of equations 2x - 8y = 0 and - 2x + 4y = - 8, which statements are true? Check all that apply. The x-variable will cancel when adding the system of equations. After adding the system of equations, you get - 12y = - 8.

Sally can drive 750 miles in 12 hours and 30 minutes. What is her unit rate in miles per hour?

The range of the scores in Mr Roberts Science class

7x^2 + 4 = 29x What's answer

Slove for x 3 (2x-5) = 4x+33

The height of a ball is modeled by f (x) = - 16x^2 + 128x, where x is the number of seconds after the ball is hit. How long is the ball in the air?

What is the reference angle in degrees for 31π 6?

How long does it take Seth to travel 1 mile Write the constant rate of change in miles per second

Add: 3x+9/2x+6+8x+12/x^2+6x+9

The lenght of a rectangle is five times its width. the area pf it is 374. what are the measurements