Identify the conic that the polar equation represents. Also, give the position of the directrix.r = 
A. ellipse, directrix is perpendicular to the polar axis at a distance 
units to the right of the pole
B. ellipse, directrix is perpendicular to the polar axis at a distance 3 units to the left of the pole
C. hyperbola, directrix is perpendicular to the polar axis at a distance 3 units to the right of the pole
D. hyperbola, directrix is perpendicular to the polar axis at a distance 
units to the left of the pole
Answer: D
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Convert as indicated. Express the answer in decimal form when needed.62 kilometers per hour to miles per hour (Round to the nearest thousandth.)
A. 38.440 mi/hr B. 99.758 mi/hr C. 44.702 mi/hr D. 93.558 mi/hr
Solve.There are currently 56 million cars in a certain country, increasing exponentially by 2% annually. How many years will it take for this country to have 68 million cars? Round to the nearest year.
A. 4 yr B. 10 yr C. 6 yr D. 124 yr
A township has corners with the coordinates A(0, 0), B(7, 0), C(7, 5), and D(2, 5), where measurements are given in miles. Remembering that there are 5280 feet in one mile and that an acre is 43,560 sq. ft., find the area of the township to the nearest tenth of an acre.
What will be an ideal response?
Find an equation of the parabola described.Focus at (5, 0); vertex at (0, 0)
A. x = 20y2 B. y2 = 20x C. x2 = 20y D. y = 20x2