For the function find the maximum number of real zeros that the function can have, the maximum number of x-intercepts that the function can have, and the maximum number of turning points that the graph of the function can have. f(x) = 11x4 - 9 + 0.16x2 - 7x
A. 3; 3; 3
B. 3; 3; 2
C. 2; 2; 1
D. 4; 4; 3
Answer: D
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Provide an appropriate response.A shirt costs x wholesale. The price the store pays is given by the function s(x) = 
x + 5, where x is the wholesale price. The price the customer pays is c(x) = 2(x + 1) where x is the price the store pays. Write a composite function to find the customer's price as a function of the wholesale price.
Fill in the blank(s) with the appropriate word(s).
Solve using the elimination method. x + y = -1x - y = -7
A. (-1, -7) B. (-5, 4) C. (4, 4) D. (-4, 3)
Write the compound inequality as an absolute value inequality. Do not simplify.6x ? -7 or 6x ? 7
A. 
? 7
B. 
? 7
C. 
? -7 or 
? 7
D. -7 ? 
? 7
Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the 
A. 3.98 × 10-4 B. 3.98 × 10-5 C. 2.51 × 10-4 D. 2.51 × 10-5