a researched wishes to examine the effects of a new medical treatment on patients with alzheimer’s disease. the researcher plans to examine the effects on a group of randomly selected subjects. what is wrong with this design? select all that apply a. only one researchers is used b. subjects are not randomly assigned to an experimental group and control group c. a control group wasn’t used d. an entire population wasn’t used

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

the answer would be 44.79

plz mark brainliest

step-by-step explanation:

i can you with this answer

step-by-step explanation: