Convert the given polar coordinates of the point to rectangular coordinates.(6, 45°)
A. (3?, 3?)
B. (3
, 3
)
C. (-3
, -3
)
D. (3
, 3
)
Answer: D
Mathematics
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Change the given quantity to the indicated unit.108 in. = 
ft
A. 36 B. 324 C. 9 D. 0.75
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Find the probability.An urn contains balls numbered 1 through 20. A ball is chosen, returned to the urn, and a second ball is chosen. What is the probability that the first and second balls will be a 6?
A. 
B. 
C. 
D. 
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Express the interval in set-builder notation and graph the interval on a number line.(-4, ?)
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Mathematics
The following while loop is annotated with a pre- and post-condition and also a loop invariant. Use the loop invariant theorem to prove the correctness of the loop with respect to the preand post-conditions.
Mathematics