Solve.Andrea's sleeping bag is designed for camping in temperatures of -3°C or warmer. For what Fahrenheit temperatures is her sleeping bag designed? Round to the nearest tenth.
A. -33.7°F or warmer
B. -19.4°F or warmer
C. 52.2°F or warmer
D. 26.6°F or warmer
Answer: D
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Translate to a proportion. Do not solve.4.0 is what percent of 9.7?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 7
C. 
D. 
The primal problem and the final tableau in the solution of the primal problem are given. Use the final tableau to solve the dual problem.Primal problem :Maximize7x1?+ 8x2subject tox1?+ 2x2? 105x1+ 4x2? 30and x1 ? 0, x2 ? 0Final tableau in solution to primal problem: x1x2?x3?x4?M 
A. Minimum = 50 when y1 = 2 and y2 = 1
B. Maximum = 50 when y1 = 2 and y2 = 1
C. Minimum = 50 when y1 = 
and y2 = 
D. Minimum = 0 when y1 = 0 and y2 = 0
Graph the equation and give the coordinates of the vertex.y = (x + 2)2
A. (2, 0)
B. (0, 2)
C. (0, -2)
D. (-2, 0)