Multiply the real numbers. Write any improper fraction as a whole or mixed number where appropriate.(-9)(-4)
A. -40
B. 36
C. 40
D. -36
Answer: B
Mathematics
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Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 3
A. -1.00 B. 0.99 C. 1.00 D. -0.99
Mathematics
Answer the question or give an explanation.Name four posting or recording errors that can cause an unbalanced checking account.
What will be an ideal response?
Mathematics
Graph the equation.y = x2 - 5
A. 
B. 
C. 
D. 
Mathematics
A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true.Sn: 12 + 42 + 72 + . . . + (3n - 2)2 = 
What will be an ideal response?
Mathematics