A study of sleep patterns randomly selected participants in the study to sleep in either a dark room or a room with light.

Which element of experiment design is known to be a part of this study?

A.

blinding

B.

replication

C.

randomization

Simplify (3+2i) / (4-i)

1 3/5+8 1/2 find the sum I don't need steps

The range of typical total prices for an American tourist traveling on the European continent is $20.70 to $25.00. What is the average price?

Which of the following relations are NOT functions? Select all that apply.* (1,3), (3,7), (5,11), (7,15), (9,19) (1,3), (1,7), (5,11), (5,15), (9,19) (-2,4), (-1,1), (0,0), (1,1), (2,4) (2,4), (1,1), (0,0), (1,-1), (2,-4) (6,3), (4,1), (2,1),

The next number in the series 13, 18, 16, 21, 19,

Ac=3 (x-6) and BD=x+6

Tony has 50 miles to his destination after 21 minutes of driving and he has 40.4 miles to his destruction after 33 minutes of driving. How many miles will he have to his destination after 37 minutes of driving?

Describe a situation in which there would be a positive association between two variables.

One angle of a triangle measures 34. A second angle measures 81. What is the measure of the third angle of the triangle? A: 65 B: 99 C: 115 D: 146

What are the x and y intercepts of the equation x=-5?