Find the probability.The table lists the eight possible blood types. Also given is the percent of the U.S. population having that type.
Let E be the event that a randomly selected person in the U. S. has type B blood. Let F be the event that a randomly selected person in the U. S. has RH-positive blood.Find P(F|E).
A. 0.818
B. 0.340
C. 0.720
D. 0.107
Answer: D
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Write the appropriate rotation formulas so that in a rotated system the equation has no x'y'-term.4x2 + 5xy + 4y2 - 8x + 8y = 0
A. x = 
x' - 
y'; y = 
x' + 
y'
B. x = 
x' - 
y'; y = 
x' + 
y'
C. x = 
(x' - y'); y = 
(x' + y')
D. x = -y'; y = x'
Find the square.(9m + 2)2
A. 81m2 + 4 B. 9m2 + 36m + 4 C. 81m2 + 36m + 4 D. 9m2 + 4
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number. 1
1
A. 318
B. 9
C. 9
D. 7
The height above ground, S (in feet), of a ball thrown vertically into the air is given by 
, where t is the time in seconds since the ball was thrown. Graph this equation with a graphing utility and the range 
. Estimate the time at which the ball is at
its highest point. Round your answer to two decimal places. ? A. 9.25 B. 0.22 C. 0.05 D. 18.50 E. 4.63