Simplify the expression. Assume that all variables are positive.
A. - 
B. y5/16
C. 
D. -y1/2
Answer: C
Mathematics
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Find the coordinates of the centroid (to the nearest 0.01 in.) of the uniform flat-plate machine part shown.
A. (2.34 in., 2.47 in.) B. (0.84 in., 2.38 in.) C. (1.03 in., 1.71 in.) D. (0.84 in., 1.71 in.)
Mathematics
Perform the indicated operation and simplify.
- 
A. 
B. 
C. 
D. 
Mathematics
Factor completely using the trial and error method to factor trinomials. If unfactorable, indicate that the polynomial is prime.72x2 + 42xy + 6y2
A. (18x + 6y)(4x + y) B. prime C. 6(3x + y)(4x + y) D. 6(3x - y)(4x - y)
Mathematics
Express the number in scientific notation.0.0000004
A. 4 × 10-6 B. 4 × 10-8 C. 4 × 10-7 D. 4 × 10-9
Mathematics