Add and simplify. 
+ 
A. 
B. 
C. 
D. 
Answer: D
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Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = x2 - 4x - 5
A. vertex (2, 9)
intercepts (5, 0), (- 1, 0), (0, 5)
B. vertex (-2, 9)
intercepts (-5, 0), (1, 0), (0, 5)
C. vertex (-2, -9)
intercepts (-5, 0), (1, 0), (0, -5)
D. vertex (2, -9)
intercepts (5, 0), (- 1, 0), (0, -5)
Solve the linear programming problem.A summer camp wants to hire counselors and aides to fill its staffing needs at minimum cost. The average monthly salary of a counselor is $2400 and the average monthly salary of an aide is $1100. The camp can accommodate up to 35 staff members and needs at least 20 to run properly. They must have at least 10 aides, and may have up to 3 aides for every 2 counselors. How many counselors and how many aides should the camp hire to minimize cost?
A. 19 counselors and 23 aides B. 8 counselors and 12 aides C. 13 counselors and 17 aides D. 13 counselors and 16 aides
Solve the problem.A rectangular coal bin has a length of 
feet and a width of 
feet. What is its perimeter?
A. 6
ft
B. 6
ft
C. 12
ft
D. 12
ft
Provide an appropriate response.Explain what is wrong with the following solution for the equation 
in the interval 
cos 2? = 
cos ? = 
? = 
or ? = 
-17.0px;" />
What will be an ideal response?