# Posts by Donielle

Total # Posts: 4

**Math**

to measure the height of the Eiffel Tower in Paris, a person stands away from the base and measures the angle of elevation to the top of the tower to be 60 degrees. Moving 210 feet closer, the angle of elevation to the top of the tower is 70 degrees. How tall is the Eiffel Tower?

*February 14, 2012*

**Algebra 2**

Look at the following polynomials and their factorizations: x^2-1=(x-1)(x+1) x^3-1=(x-1)(x^2+x+1) x^4-1=(x-1)(x^3+x^2+x+1) In general, how can x^n-1 be factored. Show that this factorization works by multiplying the factors

*December 16, 2011*

**Algebra 2**

Look at the following polynomials and their factorizations: x^2-1=(x-1)(x+1) x^3-1=(x-1)(x^2+x+1) x^4-1=(x-1)(x^3+x^2+x+1) In general, how can x^n-1 be factored. Show that this factorization works by multiplying the factors

*December 16, 2011*

**Math**

Three neighbors are sharing a rectangular strip of land for a garden.They divide the landinto equal peices. What fraction of the land does each person get if they share it equally? Write the answer in more than one way.

*November 28, 2011*

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