Use a graphing calculator to graph the piecewise-defined function, using the window indicated.f(x) = 
; window [-4, 6] by [-2, 8]
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the unit ratio.40 to 30
A. 0.25
B. 1.
C. 0.75
D. 7.5
Mathematics
Without graphing the function, determine its amplitude or period as requested.y = cos 3xFind the period.
A. 3
B. 1
C. 2?
D. 
Mathematics
Solve for the variable.24.6 = x + 4.1
A. 20 B. 20.5 C. 28.7 D. 28.2
Mathematics
Factor out the largest common factor.7a2 - 28a + 42
A. 7(a2 - 4a + 6) B. 7(a2 - 28a + 6) C. 7(a2 - 28a + 42) D. 7(a2 + 4a - 6)
Mathematics