Author: noahh2016

Fahrenheit 451 Reflection

noahh2016 on

Contributions : (pg.41-46)

  •  I completed and presented the literary luminary role.
  • Created 2 discussion questions and was prepared to assist with the discussion if necessary.
  • I made a total of 5 slides for the presentation with supporting images to go with each slide.
  • Created the title of the presentation.
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week 17 precalc

noahh2016 on

This week in precalc we finished our trigonometry unit with sine and cosine laws.  these are fairly simple concepts knowing that it’s just a formula and a little bit of algebra.  in Sine law you must remember that there can be two possibilities to an angle if it’s extraneous.

Sine law : \frac {a}{sinA} = \frac {b}{sinB} = \frac {c}{sinC}

cosine law : a^2 = b^2+c^2-ab(cosA)

\frac {b^2+c^2-a^2}{2bc}

example of sine law                                             example of cosine law

 

 

week 15 precalc

noahh2016 on

this week we finished unit 7 on rational expressions.

In 7.4 we learned how to simplify rational expressions with binomials or trinomials.  first you must factor or simplify any functions in the expression before finding the lowest common denominator.  then by multiplying the numerator with the common denominator you can start to add the like terms of the expression together and make it into one whole fraction.

Ex :

\frac {6}{v-2} + \frac {7}{2v+7}

 

\frac {12v+42}{(v-2)(2v+7)} + \frac {7v-14}{9v-2)(2v+7)}

 

\frac {19v+28}{(v-2)(2v+7)}

v cannot equal 2 or \frac {-7}{2}

 

In 7.5 we solved rational equations by eliminating the fractions, bringing everything over to one side and either isolate or factor to find x.

Ex:

\frac{4}{5x-2} = \frac {3}{4x-1}

 

16x-4=15x-6

 

x=-2

 

x= \frac{2}{5} , \frac {1}{4}

In 7.6 we solved word problems involved with rational expressions.  With word problems involving time, speed and distance we would use the TSD triangle to help find and equation with variables to help find the average speed.  With problems involving work we need to create a chart that shows the fraction of work done in each period of time.  in these problems, the expression will always equal 1 because in a case of mowing a lawn, you are mowing 1 whole lawn not multiple lawns.

week 14 precalc 11

noahh2016 on

This week we started with unit 7 of rational expressions.  We started with the basics of non-permissible values which are the values of x that make the denominator equal zero.  By simplifying rational expressions we can find x which are the non-permissible values.

In 7.2 we learned how to multiply and divide rational expressions by cross cancelling when simplified.

\frac{3x}{2(x-3)} \frac{8(x-3)}{9x^2}

 

\frac{4}{3x}

x cannot equal 3 and 0.

 

Then we learned how to add and subtract rational expressions with monomial denominators.  by finding the common denominator we can expand and reduce to end up with one simplified fraction.

adding a monomial :

\frac{2x-3}{x} + \frac{x-1}{3x}

 

\frac{6x-9}{3x} + \frac{x-1}{3x}

 

\frac{7x-10}{3x}

x cannot equal 0