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.P(x) = 3x8 + 7x6 + 3x4 + 8x2 + 4
A. 0 or 2 positive; 0 negative
B. 4 positive; 0 negative
C. 0 positive; 0 negative
D. 0 positive; 0 or 2 negative
Answer: C
Mathematics
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Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = tan u, u = -10x + 11
A. -10 sec2(-10x + 11) B. - sec2(-10x + 11) C. -10 sec (-10x + 11) tan (-10x + 11) D. sec2(-10x + 11)
Mathematics
Multiply and express the product as a mixed number or an integer.2 ? 5
A. 10
B. 10
C. 11
D. 10
Mathematics
Solve the equation for all values 0 ? x ? 2?.2
sin 4x = 3
A. x = 0, 
, ?
B. x = 
, 
, 
, 
, 
, 
, 
, 
C. x = 0
D. x = 
, 
Mathematics
Solve the problem.Determine the domain of the function f(x) = log5(x + 2).
Fill in the blank(s) with the appropriate word(s).
Mathematics