Answer: 4 units! Just took the test!
Step-by-step explanation:
<span>expressions for the mean and standard deviation of y if this variable is determined by the expression y
</span>
There are four 8’s in a deck.
Two of them are red.
The probably of being red given it was an 8 would be 2 out of 4, written as 2/4 which can be reduced to 1/2.
The answer is D.1/2
Two angles are complementary when they add up to 90 degrees<span>
</span>Two angles are supplementary when they add up to 180 degrees
angle = x
supplementary angle = (180-x)
complementary angle = (90-x)
180 - x - 40 = 2(90-x)
140 - x = 180 - 2x
-x + 2x = 180 - 140
x = 40°