Find all real numbers in the interval [0, 2?) that satisfy the equation. cos2 x - 1 = 0
A. 
B. {0}
C. {0, ?}
D. 
Answer: C
Mathematics
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Divide using synthetic division.
A. 4r2 + 4r + 8
B. r2 + 8r + 4
C. 4r2 - 4r - 8
D. 4r2 + 4r + 
Mathematics
Determine whether the first variable varies directly or inversely with the other variable.The number of pizzas that you can buy for $50, the price per pizza
A. Directly B. Inversely
Mathematics
Two cards are drawn from a standard deck of cards, and one of the two cards is noted and removed. Find the probability of drawing the second card, given the information about the removed card.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
List all the elements of B that belong to the given set.B = {6, 
, -21, 0, 
, - 
, 4.5, 4?, 0.464646...}Integers
A. {6, 0, 
}
B. {6, 0}
C. {6, -21}
D. {6, -21, 0}
Mathematics