Solve.The average price (in dollars) to rent a studio in a certain city can be approximated by the equation  where t is the number of years since 1990. Solve this equation for t and use the new equation to determine approximately what year it will be when the average price of a studio in this city reaches $1316.60.

A. 2016
B. 2015
C. 2017
D. 2014


Answer: D

Mathematics

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Find the particular solution to the given differential equation that satisfies the given conditions.D2y - 2 Dy - 15y = 0; Dy = 0 and y = 3 when x = 0

A. y = e-3x + e5x 
B. y = e-3x - e5x 
C. y = - e-3x - e5x 
D. y = - e-3x + e5x 

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Write a mathematical expression for the word phrase.Thirteen more than negative ten

A. 10 + 13  B. -13 + 10  C. -10 - 13  D. -10 + 13 

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Solve the problem.A radio telescope has a parabolic surface. If it is 9 meters deep and  wide, how far is the focus from the vertex?

A. 3 m B. 9 m C. 4 m D. 1 m

Mathematics

Prove the formula for all natural numbers n. ? ? List the steps involved.

What will be an ideal response?

Mathematics