Determine whether the function is a probability density function over the given interval.f(x) = 
A. No
B. Yes
Answer: A
Mathematics
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Solve the problem.A girl asks her father how many ties he has and he answers with a riddle: "Seven-eighths of my ties plus five." How many ties does her father have?
A. 40 B. 45 C. 50 D. 35
Mathematics
Decide whether the slope is positive, negative, zero, or undefined.
A. Undefined B. Negative C. Positive D. Zero
Mathematics
If the function is one-to-one, find its inverse. If not, write "not one-to-one."{(3, -5), (5, -3), (9, 2), (-9, -2)}
A. {(-2, 9), (9, 5), (-5, 3), (2, -9)} B. not one-to-one C. {(-5, 3), (-3, 5), (2, 9), (-2, -9)} D. {(-2, 9), (-3, 5), (-5, 5), (2, -9)}
Mathematics
Use a calculator to write the expression as a decimal rounded to three decimal places.71/2
A. 2.646 B. 2.643 C. 2.651 D. 7.000
Mathematics