Find an equation of variation in which the following are true.y varies jointly as x and the square of z, and y = 4 when x = 5 and z = 8
A. y = 
xz2
B. y = 
xz
C. y = 
D. y = 
xz2
Answer: D
Mathematics
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Calculate the maximum error of the value indicated.e0.335 using four terms of the appropriate series expansion.
A. 3.5 × 10-5 B. 1.0 × 10-4 C. 1.8 × 10-4 D. 5.6 × 10-4
Mathematics
Convert the rectangular equation to polar form.x = 5
A. r sin ? = 5 B. cos ? = 5 C. r = 5 D. r cos ? = 5
Mathematics
Perform the indicated operation.(11x2 - xy - y2) + (x2 + 6xy + 4y2)
A. 11x2 + 6xy + 4y2 B. 10x2 - 7xy - 5y2 C. 12x2 + 5xy + 3y2 D. 12x2 + 7xy + 5y2
Mathematics
Write the expression as a single logarithm. Leave your answer in simplest form without negative or fractional exponents.2 log2(3x - 6) - 3 log2(5x - 1)
A. log2[(3x - 6)2 - (5x - 1)3]
B. 
C. log2 
D. log2[(3x - 6)2(5x - 1)3]
Mathematics