Smith Engineering is in the process of reviewing the salaries of their surveyors. During this​ review, the company found that an experienced surveyor can survey a roadbed in 7 hours. An apprentice surveyor needs 11 hours to survey the same stretch of road. If the two work​ together, find how long it takes them to complete the job. Type answer in an integer or a simplified fraction

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A: Let's find.

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A: Mode is maximum occuring observation.   Here i attached the solution of this question.

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A: Note -  According to Bartleby guidelines, we are supposed to do only one question. If you want more…

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A: We write geometric sequence like this:                 a1, a1r, a1r2, a1r3, ..., a1rn-1,... where,…

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A: answer is in next step

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A: Given

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A: topic - exponential function

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A: Solution ) arithmetic sum  = n/2[ 2a  + ( n - 1 ) d ) ]     n = 10 , a = 3 , d = 2 S = 10/2 [ 2 × 3…

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A: Solving the problem by just simplifying them.

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A: Here we have to represent the given set with a Venn diagram.

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A: Observe the graph and then answer the questions.

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A: answer is in next step

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A: