Provide an appropriate response.A rectangle has a length of 
and a width of 
. What is the best estimate for its area?
A. 220
B. 228
C. 240
D. 209
Answer: B
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Perform the indicated operation involving cylindrical coordinates.Write the equation z = x2 + y2 in cylindrical coordinates
A. r tan ? = 1 B. z = r2 C. z = r2(cos ? + sin ?) D. r = cot ? csc ?
Solve the problem. Round to the nearest tenth.Find the percent increase (or decrease) in net sales from last year to this year for the income statement. 
A. 6.3% decrease B. 6.9% increase C. 6.3% increase D. 6.9% decrease
Perform the division.(x2 - 25) ÷ (x + 5)
A. x - 25 B. x + 25 C. x2 - 5 D. x - 5
Graph the parabola and label the vertex. Find the y-intercept.y = 
x2 + 8
A. vertex (0, 8), y-intercept (0, 8)
B. vertex (0, -8), y-intercept (0, -8)
C. vertex (0, 8), y-intercept (0, 8)
D. vertex (0, -8), y-intercept (0, -8)