Find the domain of the composite function (f ? g)(x). Write the domain in interval notation.f(x) = 
, g(x) = x + 9
A. (-?, -19) ? (-19, ?)
B. (-?, ?)
C. (-?, -10) ? (-10, ?)
D. (-?, -10) ? (-10, -9) ? (-9, ?)
Answer: A
Mathematics
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A and B designate finite sets. Decide whether the statement is true or false.n(A ? B) = n(A) + n(B) - n(A ? B)
A. True B. False
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Find the product.(3a + 5)(-9a + 2)
A. -27a2 + 39a + 10 B. -27a2 + 51a + 10 C. -27a2 + 10 D. -27a2 - 39a + 10
Mathematics
Decide whether the relation defines a function.
A. Function B. Not a function
Mathematics
The following circle graph displays Chris and Mary Smith's monthly $2900 family budget. Use the circle graph to answer the question. 
What is the ratio of money spent on miscellaneous to the total amount of the monthly budget?
A. 
B. 
C. 
D. 
Mathematics