Find the expected value of the probability density function to the nearest hundredth.f(x) = 3x-4; [1, ?)
A. 1.25
B. 1.50
C. 1.75
D. 1.00
Answer: B
Mathematics
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Without graphing the function, determine its amplitude or period as requested.y = -2 cos xFind the period.
A. ?
B. 2
C. 
D. 2?
Mathematics
Determine if the piecewise defined function is differentiable at the origin.f(x) = 
A. Not differentiable B. Differentiable
Mathematics
Use a calculator to approximate the root to the nearest thousandth.
A. 0.11 B. 1.100 C. 0.001 D. 0.011
Mathematics
Provide an appropriate response.Graph the following equation: 2x - 3y = 6 using a graphing calculator.
What will be an ideal response?
Mathematics