Solve the problem.Tom is going to build a fence around his garden which is a rectangle measuring 
by 
He will first put in posts which will be 4 m apart. If the posts cost $5.45 each, what will be the total cost for all the posts?
A. $54.50
B. $38.15
C. $65.40
D. $76.30
Answer: D
Mathematics
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Solve the problem.Find a field G = P(x, y)i + Q(x, y)j in the xy-plane with the property that at any point (a, b) ? (0, 0), G is a vector of magnitude 
tangent to the circle x2 + y2 = a2 + b2 and pointing in the clockwise direction.
A. -yi + xj B. xi - yj C. xi + yj D. yi - xj
Mathematics
Factor.250x3 - 54y3
A. 2(125x - 3y)(x2 + 15xy + 9y2) B. 2(5x + 3y)(25x2 - 15xy + 9y2) C. 2(5x - 3y)(25x2 + 15xy + 9y2) D. (10x - 6y)(25x2 + 9y2)
Mathematics
Express as a sum of logarithms.logx 4yz
A. (logx 4)(logx y)(logx z) B. logx (4 + y + z) C. logx 4 + logx y + logx z D. log4 y + log4 z
Mathematics
Find all real solutions of the equation.
?
?
A. 
B. ?
C. ?
D. ?
E. no solution
Mathematics