Provide an appropriate response.Last week a car dealership sold 8 luxury cars at $61,000, 5 sports vans at $29,000, 20 mid-size cars at 
and 29 compacts at 
Which measure of central tendency should be used to describe the average sale?
A. Weighted mean
B. Median
C. Mean
D. Mode
Answer: A
Mathematics
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Solve the problem.Is the line that passes through (3, 2) and (8, -5) perpendicular to the line 
A. Yes B. No
Mathematics
Solve the problem.Find the values of a, b, and c such that the graph of the quadratic equation 
passes through the points 
and 
A. a = -1; b = -3; c = 5 B. a = 1; b = -3; c = 5 C. a = -1; b = 5; c = -3 D. a = 1; b = 5; c = -3
Mathematics
Let v and w be two vectors in the plane with given magnitudes. The angle between v and w is ?. Find the expression. Round the answer to the nearest tenth.
= 5, 
= 9, ? = 51°
Find 
A. 10.3 B. -42.6 C. 7.0 D. 12.8
Mathematics
Multiply.10i ? 2i
A. 20 B. -20 C. -12 D. 12
Mathematics