Solve the problem.A railroad tunnel is shaped like a semi-ellipse. The height of the tunnel at the center is 18 ft and the vertical clearance must be 12 ft at a point 5 ft from the center. Find an equation for the ellipse. 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: A
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Write the number as the product of a real number and i.- 
A. -11i
B. 11
C. i
D. 11i
Find the x- and y-intercepts for the equation. Then graph the equation.6y - 3x = -9
A. (-3, 0), 
B. 
, (0, 3)
C. (3, 0), 
D. 
, (0, -3)
State whether the function is a polynomial function or not. If it is, give its degree. If it is not, tell why not.f(x) = 14
A. Yes; degree 1 B. No; it is a constant C. Yes; degree 0 D. No; it contains no variables
Solve the problem.A box of instant brownies has the list of ingredients shown in the table. Use this information to find the amount of the stated ingredient you would need to make the indicated number of servings.
Water3 tablespoonsOil
cupNuts
cupBrownie Mix2
cupsAmount of oil for 10 servings
A. 
tablespoon(s)
B. 
cup
C. 
cup
D. 
cup