Find the slope of the line through the pair of points.(9, -2) and (9, 1)
A. 0
B. Undefined
C. -3
D. 3
Answer: B
Mathematics
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Identify the type of surface represented by the given equation.
+ 
+ 
= 1
A. Ellipsoid B. Paraboloid C. Sphere D. Elliptical cone
Mathematics
Choose the graph that matches the equation. y = -2x + 3
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Give the solution set in both interval and graph forms.y - 2 < 2 
A. (4, ?)
B. (-?, 4)
C. (-?, 4]
D. [4, ?)
Mathematics
Solve the problem.The formula P = 14.7e-0.21x gives the average atmospheric pressure, P, in pounds per square inch, at an altitude x, in miles above sea level. Find the average atmospheric pressure for an altitude of 2.3 miles. Round your answer to the nearest tenth.
A. 11.0 lb/in.2 B. 8.4 lb/in.2 C. 9.1 lb/in.2 D. 7.8 lb/in.2
Mathematics