Without graphing the function, determine its amplitude or period as requested.y = -3 cos 
xFind the period.
A. 
B. 
C. 4?
D. -3
Answer: C
Mathematics
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Find all the roots of the function. Use preliminary analysis and graphing to determine good initial approximations. Round to six decimal places.f(x) = ln(3x) - 3x2 + 2x + 1
A. x ? 0.102911, 1.277901 B. x ? 1.603022, 2.778012 C. x ? 0.325022, 1.500012 D. x ? 0.103022, 1.278012
Mathematics
Provide an appropriate response. Choose the symbolic statement for the following verbal statement: Eight subtracted from a number is three.
A. x ÷ 8 = 3 B. 8 - x = 3 C. 8x = 3 D. x - 8 = 3
Mathematics
Simplify the complex fraction.
A. 
B. 
C. - 
D. 
Mathematics
Match the graph of the rational function with its equation.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics