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geometric sequence

Select he first five terms of the geometric sequence an=(2)^n^-1, starting with n=1   I believe the answer is 2,4,8,16,64   I get arithmetic sequence and geometric sequence...

Can you think of one real-world example of when the concept of functions might be useful? Do you think you will ever use functions in your life to solve probl

Can you think of one real-world example of when the concept of functions might be useful? Do you think you will ever use functions in your life to solve problems? If yes, explain how and why; if no,...

Graphing 6x-y=1

I need to graph two points on a line. I am having trouble finding the two points of the inequality 6x-y=1 and actually getting those points right on the graph.

Word Problem

Julie is a math tutor in the academic center. She charges $210 for the first 7 hours of tutoring and $20 for each additional hour of tutoring. If she earned $410 tutoring 1 student, how many total...

Trigonometry

(i) Factorize the expression 2 sin x cos x - cos x + 4 sin x -2. (ii) Hence solve the equation 2 sin x cos x - 2=cos x - 4 sin x for -360°≤ x ≤ 360°

Logarithms

Given that a>b>1 and that 2 logab + 4 logba=9, find b in terms of a.   Ans: b=√a

What's the shortest length?

A certain cord will break if its tension exceeds 360 N. Suppose the cord is attached to a 0.40 kg ball. If the ball is to be swung with a speed of 25 m/s, what's the shortest length of cord that can...

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