Solve.Find which is the better buy (lower cost per ounce) by finding each unit price rounded to three decimal places if necessary. Crackers: $3.15 for 18 ounces $1.4 for 8 ounces
A. $1.4 for 8 ounces
B. $3.15 for 18 ounces
C. Both cost the same per ounce.
Answer: C
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Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 5 feet from the base along the axis of symmetry and the opening is 14 feet across, how deep should the searchlight be?
A. 12.3 ft B. 2.5 ft C. 9.8 ft D. 0.9 ft
Perform the indicated operation and simplify. +
+
A.
B. None of these
C.
D.
Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that and that the value of the "inner" inverse trigonometric expression represents an angle ? such that
cos (tan-1 u)
A. u
B.
C.
D.
Use the TABLE feature of a graphing utility to find the limit.
A.
B. 0
C. 1
D. does not exist