Replace the Cartesian equation with an equivalent polar equation.x2 - y2 = 4
A. r cos 2? = 4
B. cos2? - sin2? = 4r
C. cos2? - sin2? = 4
D. r2 cos 2? = 4
Answer: D
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Solve the application using the percent equation. Answer with a complete sentence.Alex and Juana went on a 45-mile canoe trip with their class. On the first day they traveled 27 miles. What percent of the total distance did they canoe?
A. They canoed 0.6% of the total distance. B. They canoed 200% of the total distance. C. They canoed 2% of the total distance. D. They canoed 60% of the total distance.
Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.3.9x2 - 0.1x = -1.8
A. 0.013 ± 0.679 B. 0.026 ± 2.683i C. 0.013 ± 3.599i D. 0.013 ± 0.679i
Classify the equation as a contradiction, an identity, or a conditional equation. 3x - (4 - x) = 9[7 - (6 + 8x - 7)]
A. Contradiction B. Conditional C. Identity
Graph the function.y = csc
A. 
B. 
C. 
D. 