Translate the sentence to an equation.The product of 
and n is 12.
A. 
n = 12
B. 12n = 
C. 
= n
D. 
n = 12
Answer: D
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Name the conic (horizontal ellipse, vertical hyperbola, and so on) corresponding to the given equation.x2 - 49y2 = 49
A. Horizontal ellipse B. Vertical hyperbola C. Horizontal hyperbola D. Vertical ellipse
Use your estimation skills and the percent shortcuts to select the most reasonable answer. Do not write an equation and solve it.What is 80% of 1700 pounds?
A. 80 pounds B. 340 pounds C. 3060 pounds D. 1360 pounds
Solve the problem.A railroad tunnel is shaped like a semi-ellipse. The height of the tunnel at the center is 15 ft and the vertical clearance must be 9 ft at a point 16 ft from the center. Find an equation for the ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
If the sides of a triangle are a, b, and c and they satisfy a2 + b2 = c2, the triangle is a right triangle. Determine whether the triangle with the given sides is a right triangle.a = 1, b = 
, c = 
A. Yes B. No