Find the special product.[(5x - 4) + 8y][(5x - 4) - 8y]
A. 25x2 - 40x + 16 + 64y2
B. 25x2 + 40x + 16 - 64y2
C. 25x2 - 40x + 16 + 80xy - 64y + 64y2
D. 25x2 - 40x + 16 - 64y2
Answer: D
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Solve the problem.The frequency table below shows the number of days off in a given year for 30 police detectives. Make a histogram. 
What will be an ideal response?
Find an equation of the line that fits the description.Passes through (0, -5) and is perpendicular to y = - 
x + 
A. y = 
x - 5
B. y = - 
x - 5
C. y = - 
x - 5
D. y = 
x - 5
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
Use Gauss-Jordan elimination to solve the linear system and determine whether the system has a unique solution, no solution, or infinitely many solutions. If the system has infinitely many solutions, describe the solution as an ordered triple involving variable z.x + 8y + 8z=87x + 7y + z=18x + 15y + 9z=-9
A. (-1, 0, 1) B. (0, 0, 1) C. (1, -1, 1) D. no solution