Solve the problem.The mean height of 5 students is 56.4. If one of the students leaves, the mean height becomes 57.25. What is the height of the absent student?
A. 56
B. 50
C. 53
D. 54
Answer: C
Mathematics
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Find the Jacobian for the given transformation.
A. 24u2 B. 24v2 C. 12v2 D. 12u2
Mathematics
Use properties of exponents to simplify the expression. First, express the answer in exponential form. Then, evaluate the expression.23 ? 22
A. 25; 12 B. 5 ? 2; 10 C. 25; 32 D. 26; 64
Mathematics
Use logarithmic differentiation to find the derivative of y.y = x(x - 3)(x - 9)
A. x(x - 3)(x - 9)
B. x(x - 3)(x - 9)(lnx + ln(x - 3) + ln(x - 9))
C. 1
D. 
+ 
+ 
Mathematics
Solve the inequality.-3x2 + 7x - 5 ? 0
A. 
? x ? 5
B. -3 ? x ? - 
C. All real numbers
D. No solutions
Mathematics