Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. 2k5
B. 2k18
C. -2k5
D. 8k5
Answer: A
Mathematics
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Find the required part of the geometric sequence.Find a formula for the nth term of a geometric sequence with third term - 
and sixth term - 
.
A. an = 
n - 1 + 
B. an = - 
n - 1
C. an = - 
+ 
(n - 1)
D. an = - 
+ 
(n - 1)
Mathematics
Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.The length of the nail is 25 
.
A. m B. cm C. km D. mm
Mathematics
Find the exact value of the expression.
A. - 
B. -2
C. - 
D. -
Mathematics
Solve the problem.At the first tri-city meeting, there were 8 people from town A, 7 people from town B, and 5 people from town C. If the council consists of 5 people, find the probability of 3 from town A and 2 from town B.
A. 0.076 B. 0.072 C. 0.023 D. 0.036
Mathematics