Determine whether the following number is prime or composite. If composite, write the prime factorization.47
A. composite, 24 ? 2
B. composite, 47 ? 1
C. prime
D. composite, 23 ? 47
Answer: C
Mathematics
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Expand.(a - b)6
A. a6 + 6a5b + 15a4b2 + 20a3b3 + 15a2b4 + 6ab5 + b6 B. a6 - 6a5b + 15a4b2 - 20a3b3 + 15a2b4 - 6ab5 + b6 C. a6 - 6a5b - 15a4b2 - 20a3b3 - 15a2b4 - 6ab5 - b6 D. -a6 + 6a5b - 15a4b2 + 20a3b3 - 15a2b4 + 6ab5 - b6
Mathematics
Solve using the addition principle and/or the multiplication principle.
x = 21
A. 84 B. 80 C. 25 D. 63
Mathematics
Find the sum of the sequence.
A. -34 B. 34 C. 26 D. 2
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.
(
+ 
)
A. 3
+ 9
B. 3
+ 3
C. 9
+ 3
D. 21 + 9
Mathematics