When a student is designed so that neigter the subjects nor the experimenters know which subjects are in the treatment group and which ones are in the control group, the student is called a experiment? A) Double-blind B) Placebo-effect C) Biase D) Control

step-by-step explanation: you take each of the numbers and divide by the amount then you take the range

2 is the final ! : )

kbmflmklbhml; bmlzb; bdhzz

step-by-step explanation:

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh