Solve the problem.What is the coefficient of a3b4c2 in the expansion of (a + b + c)9?
A. 40,320
B. 2520
C. 288
D. 1260
Answer: D
Mathematics
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Determine whether the graph is a complete graph.
A. No B. Yes
Mathematics
Express the number in scientific notation.0.0000004
A. 4 × 10-6 B. 4 × 10-8 C. 4 × 10-7 D. 4 × 10-9
Mathematics
Solve the problem.In his chemistry lab, Harrison measured the mass of a sample of calcium carbonate six different times. The mass measurements he observed were: 2.016 g, 2.009 g, 2.017 g, 2.011 g, 2.012 g, and 2.011 g. Find the mean of these measurements.
A. 2.011 g B. 2.015 g C. 2.013 g D. 2.01 g
Mathematics
Provide an appropriate response.Which of the following is a prime number?
A. 39 B. 29 C. 42 D. 55
Mathematics