Solve the problem.How many three-digit codes can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 if the last digit cannot be 0 or 1 and repetition of digits is allowed?
A. 800
B. 504
C. 720
D. 512
E. none of these
Answer: A
Mathematics
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A. 1 B. 16 C. 32 D. 8
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Write an equivalent expression. Use a commutative law.y + 13
A. 13 + y B. y13 C. 13y D. 13(y + 1)
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Write the equation of the axis of symmetry.f(x) = x2 + 11x - 2
A. x = 0
B. x = - 
C. x = 11
D. x = 
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Four players (A, B, C, and D) agree to divide the 16 items shown below by lining them up in order and using the method of markers. The players' bids are as indicated.
Item 8
A. goes to A. B. goes to B. C. goes to C. D. goes to D. E. is left over.
Mathematics