Solve the problem.A hardware store owner advertises a certain brand of drill. Each month he changes the price (in dollars) of the drill and tracks the number of units sold. His sales can be approximated by the equation 
where x represents price and y represents sale. Complete the table, and make a scatter diagram of the data.
What will be an ideal response?
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Find the derivative of the function.s = sin 
- cos 
A. - 
cos 
- 
sin 
B. 
cos 
- 
sin 
C. cos 
+ sin 
D. 
cos 
+ 
sin 
Convert as indicated. Round to the nearest tenth of a degree, if necessary.At a particular business it is required that the temperature be kept at 74°F, but the thermostat is calibrated in degrees Celsius. Find the temperature to be set.
A. 139.6°C B. 24.3°C C. 23.3°C D. 165.2°C
Write expanded notation.The number of school children in a European country is 559,798.
A. 5 hundred thousands + 5 ten thousands + 9 thousands + 7 hundreds + 98 ones B. 5 hundred thousands + 5 ten thousands + 9 thousands + 7 hundreds + 9 tens + 8 ones C. 5 hundred thousands + 59 + thousands + 9 hundreds + 9 tens + 8 ones D. 55 ten thousands + 9 thousands + 7 hundreds + 9 tens + 8 ones
Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros of f(x) = x5 + 2x.
A. 1 positive real; 3 negative reals or 1 negative real B. no positive reals; no negative reals C. 1 positive real; 5 negative reals or 3 negative reals or 1 negative real D. 5 positive reals or 3 positive reals or 1 positive real; no negative reals E. 3 positive reals or 1 positive real; 3 negative reals or 1 negative real