Express the number in decimal notation.7 × 10-7
A. 0.0000007
B. -700,000
C. 0.00000007
D. 0.000007
Answer: A
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Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = 
A. ? B. 0 C. 1 D. No limit
Choose the polar equation that matches the graph.
A. r = sin 6? + sin2 5? B. r = cos 5? + cos2 6? C. r = sin 5? + sin2 6? D. r = cos 6? + cos2 5?
Solve the problem.Northwest Molded molds plastic handles which cost $0.70 per handle to mold. The fixed cost to run the molding machine is $1613 per week. If the company sells the handles for $1.70 each, how many handles must be molded and sold weekly to break even?
A. 2304 handles B. 672 handles C. 1613 handles D. 1075 handles
Find the vertices and foci of the ellipse. Graph the ellipse.81x2 + 25y2 = 2025
A. Foci at (- 2
, 0) and (2
, 0)
Vertices at (-9, 0), (9, 0)
B. Foci at (0, - 2
) and (0, 2
)
Vertices at (0, -9), (0, 9)
C. Foci at (-9, 0) and (9, 0)
Vertices at (-81, 0), (81, 0)
D. Foci at (0, -9) and (0, 9)
Vertices at (0, -81), (0, 81)