150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.Approximately what percent of the students scored between 65 and 75 points?
A. 34%
B. 10%
C. 68%
D. 95%
E. none of these
Answer: A
Mathematics
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Find the indicated vector.Let u = 
, v = 
. Find u - v.
A. 
B. 
C. 
D. 
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Use L'Hospital's rule to find the limit.
A. 0
B. - 
C. 
D. ?
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Use the rational zeros theorem to determine the potential rational zeros of the polynomial function. Do not find the zeros.f(x) = x5 - 5x2 + 2x + 21
A. ± 1, ± 7, ± 3, ± 21
B. ± 1, ± 
, ± 
, ± 
C. ± 1, ± 7, ± 3
D. ± 1, ± 
, ± 
, ± 
, ± 7, ± 3, ± 21
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
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