Solve equations!!!!!!!!!!!!!!!
How can you use a distance time graph to compare the motion of two different object
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Let x-2, 4x, 7x+2 be three first terms of arithmetical sequence. Then
.
Since
, you receive that 
.
The formula for n-th term of arithmetical sequence is:
.
Hence
.
Since
The formula for n-th term of arithmetical sequence is:
Hence
Answer:
(a) $12,000. It is reasonable since profit is positive
(b) $6,000
Step-by-step explanation:
(a) The promoter's expected profit is given by the product of his potential earnings by the probability that it does not rain, minus the product of his potential losses by the probability of rain:
The promoter's expected profit is $12,000, it is a reasonable criterion since profit is positive.
(b) An insurance company should charge the product of the full potential losses by the probability of rain:
An insurance company should charge $6,000.