Use the product rule to simplify. Write the results using exponents.(-3x3y)(-7x2y6)
A. 21x6y6
B. -21x5y6
C. -21x5y7
D. 21x5y7
Answer: D
Mathematics
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A. is a critical player in every winning coalition. B. is a dummy. C. has veto power. D. is a dictator. E. none of these
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Determine whether the positive or negative sign makes the equation correct. Do not use a calculator.tan 
= ±
A. Positive B. Negative
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How many three-digit numbers can be formed under the following condition?
The number is at least 400. a. 599 b. 610 c. 601 d. 600
Mathematics
Solve.log (x + 9) + log x = 1
A. -1 B. 1 C. -10, 1 D. -1, 10
Mathematics