Determine whether the given sequence is arithmetic, geometric, or neither. If the sequence is arithmetic, find the common difference; if it is geometric, find the common ratio.{7n/5}
A. Arithmetic; d = 71/5
B. Geometric; r = 71/5
C. Geometric; r = 7
D. Neither
Answer: B
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Solve the problem.Under standard conditions, molecules of a gas collide billions of times per second. If each molecule has diameter t, the average distance between collisions is given by 
where n, the volume density of the gas, is a constant. Find 
.
A. 
= - 
B. 
= 
C. 
= 
D. 
= - 
Find the cross-product and determine whether the proportion is true or false.
= 
A. 110.25 ? 248.0625; false B. 164.25 = 110.25; true C. 165.375 ? 165.375; false D. 165.375 = 165.375; true
For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = 
, g(x) = 
Find (f/g)(x).
A. 
B. 
C. 
D. 
Solve. Write the answer as a mixed number in simplest form.Ted walks around a lake on a path that is 1
miles long. It takes him 1
hours to complete his walk. What is his average speed (in miles per hour)?
A. 1
miles per hour
B. 1
miles per hour
C. 1
miles per hour
D. 2
miles per hour