Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Answer: C
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t = 3.8 æsec, C = 450 pF, and R = 20 Kê. Find VR in a circuit connected to a 37 V source.
a. 10.9 V b. 17.4 V c. 20.9 V d. 24.3 V e. 31.2 V
Find the range of the quadratic function.f(x) = -x2 + 6x - 7
A. [2, ?) B. (-?, 3] C. (-?, 2] D. [3, ?)
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
The sales of a product S (in thousands of dollars) are given by 
, where x is the advertising expenditure (in thousands of dollars). Find the rate of change of sales with respect to advertising expenditure. Use the second derivative to find how this rate is changing at 
varid="variable_id_field" variablename="impvar_af3043c08a7441e2858a7f822" />. Round your answer to two decimal places. ? A. 0.89 B. -0.03 C. 0.00 D. -0.89 E. -0.02