Use the standard normal curve table to find the closest z-score for the given condition.20.1% of the total area is to the right of z.
A. 0.83
B. 0.82
C. -0.84
D. 0.84
Answer: D
Mathematics
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Solve.How many 
-ounce doses are available in a 12-ounce container of medicine?
A. 4 doses
B. 
dose
C. 33 doses
D. 36 doses
Mathematics
Write the number in simplest form, without a negative radicand.
A. ±20
B. 20i
C. -20i
D. i
Mathematics
Write standard form and identify a, b, and c.5x2 + 5 = 5x + 1
A. 5x2 + 5x - 1 = 0; a = 5, b = 5, c = -1 B. 5x2 - 5x + 5 = 1; a = 5, b = -5, c = 5 C. 5x2 + 5x - 4 = 0; a = 5, b = -5, c = -4 D. 5x2 - 5x + 4 = 0; a = 5, b = -5, c = 4
Mathematics
Find the foci of the ellipse whose equation is given.
+ 
= 1
A. foci at (- 2
, -3) and (2
, -3)
B. foci at (-1 + 2
, -3) and (-1 - 2
, -3)
C. foci at (-3 + 2
, -1) and (-3 - 2
, -1)
D. foci at (-1 + 2
, -1) and (-1 - 2
, -1)
Mathematics