Use negative exponents where necessary to write the expression with all variables in the numerator of a term. That is, write each term in the form cxn if the term contains a variable.y = 7x2 + 5 - 
+ 
A. y = 7x2 + 5 - 3x-1 + 3x-2
B. y = 7x2 + 5 - (3x)-1 + (3x)-2
C. y = 5 - 3x-1 + 10x-2
D. y = 7x2 + 5 + x-1 + x-2
Answer: A
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Graph the function.y = -cot 
A. 
B. 
C. 
D. 
Solve the problem.Cordelia has a credit card balance of $4121.62 with an annual percentage rate of 21.2%. Her card requires a minimum payment of 2% of the total balance. If she pays only the minimum payment, what amount of the minimum payment is applied to the principal? (Assume that interest is compounded monthly.)
A. $72.82 B. $82.43 C. $9.61 D. $21.20
Perform the matrix operation.Given A =
and B = 
, find 2A + B.
A. 
B. 
C. 
D. 
Solve the problem.The maximum distance d in kilometers that you can see from a height h in meters is given by the formula 
How high above the ground must you be to see 40 kilometers. Round to the nearest tenth.
A. 457.1 m B. 11.4 m C. 130.6 m D. 22.1 m