Find all vertical asymptotes of the given function.f(x) = 
A. x = 1, x = -4
B. x = -1, x = -4
C. x = -1, x = 4
D. x = -1
Answer: D
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Solve the problem.A data set consists of 248 test scores. Over a long period it has been found that the mean and standard deviation for these scores are known and that the scores are normally distributed. How many scores within this data set should lie within three standard deviations of the mean? Round your answer to the nearest whole number.
A. 237 B. 247 C. 169 D. 124
Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.an = an-1 + 10, a1 = 13
A. an = 10n + 3, a20 = 203 B. an = 10n + 23, a20 = 223 C. an = 3n + 10, a20 = 70 D. an = 13n - 3, a20 = 257
Write the standard form of the equation of the circle. 
A. (x + 6)2 + (y + 6)2 = 2 B. (x + 6)2 + (y + 6)2 = 4 C. (x - 6)2 + (y - 6)2 = 2 D. (x - 6)2 + (y - 6)2 = 4
Graph the linear function.f(x) = 
x - 6
A. 
B. 
C. 
D. 