Define a function f: R ?? R as follows: for all real numbers x,
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Solve graphically the problem to the stated accuracy.A mother is choosing which baby foods to serve her infant. A jar of meat has 
of protein and 36 calories. A jar of vegetables has 
of protein and 18 calories. How much of each (to the nearest tenth) will she need to serve to get 
of protein and 109 calories?
A. 1.5 jars of meat and 2.0 jars of vegetables B. 2.0 jars of meat and 1.5 jars of vegetables C. There are infinitely many such combinations. D. There is no such combination.
Write the algebraic expression described. Simplify if possible.A 52-centimeter piece of rope is cut into two pieces. If one piece is z centimeters long, express the other length as an algebraic expression in z.
A. (z + 52) cm B. (z - 52) cm C. (52 - 2z) cm D. (52 - z) cm
Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.
A. 11x2 B. -11x C. 11x D. 121x
Add or subtract as indicated. Express the answer in pounds and ounces.32 lb 14 oz - 16 lb 10 oz
A. 48 lb 8 oz B. 16 lb 4 oz C. 49 lb 8 oz D. 15 lb 4 oz