Solve using the principle of zero products.(x - 7)(x + 4) = 0
A. 7, -7, 4, -4
B. -7, 4
C. 7, 4
D. 7, -4
Answer: D
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Solve the given equation for the indicated variable.A = 
bh for h
A. h = 
B. h = 
C. h = 
D. h = 
Solve.The product of the page numbers on two facing pages of a book is 342. Find the page numbers.
A. The page numbers are 17 and 18. B. The page numbers are 17 and 19. C. The page numbers are 18 and 19. D. The page numbers are 18 and 20.
Solve the problem.You have 84 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 21 feet, width: 21 feet B. length: 42 feet, width: 42 feet C. length: 63 feet, width: 21 feet D. length: 42 feet, width: 21 feet
Solve by using the square root property.y2 = 7
A. {
}
B. {±3.5}
C. {49}
D. {±
}