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

Mathematics

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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'

Mathematics

Find the square.(9m + 2)2

A. 81m2 + 4 B. 9m2 + 36m + 4 C. 81m2 + 36m + 4 D. 9m2 + 4

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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 

Mathematics

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

Mathematics