If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.245x2 + 420x + 180
A. 5(7x - 6)2
B. 5(7x + 6)2
C. 5(49x + 36)2
D. 5(7x + 6)(7x - 6)
Answer: B
Mathematics
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Find the median for the given sample data.The salaries of ten randomly selected doctors are shown below.
Find the median salary.
A. $224,000 B. $249,000 C. $163,000 D. $175,000
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Solve.-5x2 + 7x = 4
A. 
B. 
C. 
D. 
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A set of data items is normally distributed with a mean of 500. Find the data item in this distribution that corresponds to the given z-score.z = -3, if the standard deviation is 70.
A. 497 B. 430 C. 290 D. 710
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Find the exact values of s in the given interval that satisfy the given condition.[-?, ?); 2 cos2 s = 1
A. - 
, - 
, 
, 
B. - 
, - 
, - 
, - 
C. - 
, - 
, 
, 
D. 
, 
, 
, 
Mathematics