Find a constant k so that kf is a probability density function, or state it does not exist.f(x) = 
A. k = 2
B. k = -2
C. k = 
D. does not exist
Answer: D
Mathematics
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Simplify by using the order of operations.42 ÷ 14 ? 3 - 2 + 7
A. -8 B. 6 C. 0 D. 14
Mathematics
Simplify. Include the absolute value symbol if necessary. If the answer is not a real number, state so.
A. 6x2 B. not a real number C. 14x2 D. 36x2
Mathematics
Identify the type of surface represented by the given equation.
- 
- 
= 1
A. Hyperboloid of two sheets B. Hyperboloid of one sheet C. Ellipsoid D. Elliptical cone
Mathematics
Is the function graphed below one-to-one?
A. Yes B. No
Mathematics