Perform the indicated operations.Estimate by rounding to the nearest thousand, then find the actual sum.
A. Estimate: 68,000
Actual: 66,261
B. Estimate: 66,000
Actual: 66,351
C. Estimate: 58,000
Actual: 66,225
D. Estimate: 70,000
Actual: 66,364
Answer: B
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Rotate the coordinate axes to change the given equation into an equation which has no cross product (xy) term. Identify the graph of the equation as a hyperbola, ellipse, parabola, a straight line, or parallel lines.7x2 - 4xy + 11y2 - 7x + 3y - 10 = 0
A. 6.172u2 + 7.828v2 - 6.467u + 5.450v = 0; Ellipse B. 11.828u2 - 11.828v2 + 5.450u - 5.319v - 10 = 0; Hyperbola C. 6.172u2 + 11.828v2 - 5.319u + 5.450v - 10 = 0; Ellipse D. 6.172u2 - 11.828v2 - 5.319u + 5.450v - 10 = 0; Hyperbola
Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is 
when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?
A. $71,556 B. $572,450 C. $143,113 D. $286,225
Find any excluded values.
A. -5, 1, 
B. 5, 1
C. -5, 1
D. 5, 1, 
Classify the polynomial as a monomial, a binomial, a trinomial, or a polynomial with no special name.-16s3 - 9s - 2
A. Trinomial B. Polynomial with no special name C. Monomial D. Binomial