Simplify the expression, leaving your answer with only positive exponents. Assume that all variables represent positive numbers.(4x4y4)1/2
A. 2x4y2
B. 2x2y2
C. 2x2y
D. x2y2
Answer: B
Mathematics
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Provide an appropriate response. The mold on a pipefitting allows for 1.2% shrinkage. What is the original length if the final length of the fitting is 0.247 mm?
A. 0.3 mm B. 0.25 mm C. 0.2058 mm D. 0.2964 mm
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Find the product of the complex number and its conjugate.-i
A. -1 B. i C. -i D. 1
Mathematics
Add or subtract as indicated. Express the answer as a single polynomial in standard form.6(1 - y3) - 4(1 + y + y2 + y3)
A. 10y3 - 4y2 - 4y + 2 B. -10y3 - 4 - ay2 - 4y + 2 C. -10y3 + 4y2 - 4y - 2 D. -10y3 - 4y2 - 4y + 2
Mathematics
Find a formula for the expression. Use sigma notation.
A. xny-1 + 
xn-kyk-1
B. + xny-1 + 
xn-kyk-1
C. xny-1 + 
xn-kyk
D. xny-1 + 
xn-kyk-1
Mathematics