Estimate the sum or difference by rounding each number to the nearest hundred.6,869
A. 5,300
B. 5,233
C. 5,200
D. 5,000
Answer: A
Mathematics
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Calculate the flux of the field F across the closed plane curve C.F = yi - xj; the curve C is the circle (x + 10)2 + (y + 10)2 = 64
A. 160 B. -320 C. -160 D. 0
Mathematics
Solve the problem.Find an expression that represents the perimeter of the rectangle. Give the simplified form.
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Assume that all variables are non-negative.
A. 13
B. 13
C. 
D. 2
Mathematics
Graph the ellipse.4x2 + 25y2 = 100
A. 
B. 
C. 
D. 
Mathematics