Solve the problem.On a test, Sunita has an x percent chance of correctly answering a question for which she has not studied. The chance that she will correctly answer a question for which she has studied is 2x. She is happy to see that both of the first two questions on the test are questions for which she has studied. The chance that she doesn't answer either of these questions correctly is (1 - 2x)2, where x is expressed as a decimal. Multiply this expression.
A. 1 - 4x + 4x2
B. 1 + 4x - 4x2
C. 1 - 2x + 4x2
D. 1 - 4x2
Answer: A
Mathematics
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A. 2
B. - 
C. 7
D. 
Mathematics
Solve the system graphically.
A. (4, 1), 
B. 
C. 
, (-1, -29)
D. (4, 1)
Mathematics
Identify the following as an expression or an equation. 
x + 9 - 
x - 8
A. Expression B. Equation
Mathematics
Solve the problem.A size 48 dress in Country C is size 8 in Country D. A function that converts dress sizes in Country C to those in Country D is 
Find the inverse function.
A. f-1(x) = 2(x + 16) B. f-1(x) = x + 16 C. f-1(x) = 2x + 16 D. f-1(x) = 2(x - 16)
Mathematics