State whether the function is a polynomial function or not. If it is, give its degree. If it is not, tell why not.f(x) = -13x3 + ?x2 - 4
A. Yes; degree 3
B. Yes; degree 6
C. No; x2 has a non-integer coefficient
D. Yes; degree 5
Answer: A
Mathematics
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Use a sum or difference identity to find the exact value.tan 
A. -2 + 
B. 2 - 
C. 2 + 
D. -2 - 
Mathematics
If 
is a root of 
use synthetic division to factor the polynomial completely and list all real solutions of the equation.
a. 
b. 
c. 
d. 
e. 
Mathematics
Find the sum or difference.(-8 - 9x2 + 4x4 + 2x3) + (3x3 - 4x2 + 6 + 2x4)
A. -5x4 - 5x3 + 10x2 + 4 B. 6x8 + 5x6 - 13x4 - 2 C. -2x18 - 2 D. 6x4 + 5x3 - 13x2 - 2
Mathematics
If y varies inversely as x, and x = 5 when y = 3, find y when x = 4. Round to the nearest hundredth.
A) 4.37 B) 3 C) 3.75 D) 3.12 E) 4.5
Mathematics