Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = 8x6 - 9x4 - 4x3 + 4x2 - 9x
A. 0 or 2 positive; 0 negative
B. 1 or 3 positive; 2 negative
C. 1 or 3 positive; 0 or 2 negative
D. 0 or 2 positive; 1 or 3 negative
Answer: C
Mathematics
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Construct a decimal number by writing:8 in the tenths column,6 in the thousandths column,8 in the tens column,9 in the thousands column,8 in the hundreds column,7 in the hundredths column,8 in the ten thousandths column,2 in the ones column.
Fill in the blank(s) with the appropriate word(s).
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Decide whether or not the functions are inverses of each other.f(x) = 6x - 6, g(x) = 
x + 1
A. Yes B. No
Mathematics
Simplify.(2a)4
A. 8a4 B. 16a4 C. 16a D. 8a
Mathematics
Solve the problem.How many two-digit counting numbers do not contain any of the digits 1, 3, or 9?
A. 81 numbers B. 49 numbers C. 72 numbers D. 42 numbers
Mathematics