Use the method suggested to compute mentally.Use trading off. 
A. 166
B. 164
C. 161
D. 156
Answer: C
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Find the extreme values of the function and where they occur.y = 
A. The minimum is 1 at x = 0. B. The maximum is 1 at x = 2. C. The maximum is 1 at x = -2. D. The minimum is 0 at x = 1.
Find the polar equation of the given rectangular equation.y = -x
A. r = sin ? B. sin ? = - cos ? C. sin ? = cos ? D. r = cos ?
Make the indicated temperature conversion. Round answers to one decimal place if necessary.Convert 72°C to Fahrenheit.
A. 97.6°F B. 61°F C. 25.4°F D. 161.6°F
Solve.30 marbles are to be divided into three bags so that the second bag has three times as many marbles as the first bag and the third bag has twice as many as the first bag. If x is the number of marbles in the first bag, find the number of marbles in each bag.
A. 1st bag = 6 marbles; 2nd bag = 18 marbles; 3rd bag = 12 marbles B. 1st bag = 5 marbles; 2nd bag = 10 marbles; 3rd bag = 15 marbles C. 1st bag = 6 marbles; 2nd bag = 14 marbles; 3rd bag = 10 marbles D. 1st bag = 5 marbles; 2nd bag = 15 marbles; 3rd bag = 10 marbles