The graph of a piecewise-defined function is given. Write a definition for the function. 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the slope of the polar curve at the indicated point.r = 4 cos ? - 5 sin ?, ? = 
A. 
B. - 
C. - 
D. 
Mathematics
Graph using a graphing calculator.
+ 
= 1
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Anne and Nancy use a metal alloy that is 17.68% copper to make jewelry. How many ounces of a 10% alloy must be mixed with a 22% alloy to form 100 ounces of the desired alloy?
A. 38 ounces B. 64 ounces C. 69 ounces D. 36 ounces
Mathematics
Use the quadratic formula to solve the equation.5x2 + 12x = - 6
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics