Thursday

July 31, 2014

July 31, 2014

Total # Posts: 19

**Algebra 2**

Can someone please explain to me how to solve logarithmic equations? Some examples are: -5=log2X 3^5x+1= 40 and log6X+(log6)7=(log6)35 I hope that makes sense because logs are hard to type.

**Algebra II**

How can you tell if a table of values(t-table) represents a direct variation?

**Algebra II**

How can you tell if a table of values(t-table) represents a direct variation?

**Algebra II**

1. If y varies directly as x, and y=30 when x=4, find the constant of proportionality. 2. If y varies inversely as x, and y=2 when x=10, find x when y=4. 3. If a varies jointly as b and c, and a=-10, when b=12 and c=2, find a when b=8 and c=1/2.

**Algebra II**

Solve: (2x – 3)(3x – 5) = 0 Solve by the quadratic formula. Leave the square root in your answer: 3x2 – x – 8 = 0

**Algebra II**

How do you find the vertex of a quadratic function? What are the steps to solving a quadratic function using factoring? Please help!

**Algebra II repost- please check**

I posted these a little while ago but this time I have answered them. 1. Does the graph of y = x – 3x2 + 5 have a maximum or minimum? 2. What is the vertex of the graph of y = -2(x - 3)2 + 4? 3. Does the graph of y = -2(x - 3)2+ 4 open up or down? My answers: 1. I cannot ...

**Algebra II**

Does the graph of y = x – 3x2 + 5 have a maximum or minimum? What is the vertex of the graph of y = -2(x - 3)2 + 4? Does the graph of y = -2(x - 3)2+ 4 open up or down?

**Kent, England**

I am looking for information on Kent England( location, history, anything). I', doing a family research project and my ancestors are from Kent England.

**English ( Dr. Faustus and To Heaven)**

Write a compare/ contrast essay of Dr.Faustas and To Heaven in regards to one of these issues: grace, forgiveness, salvation, and damnation OR relationship of the individual to cosmic beings like God, Satan, and devils. My essay needs to be between 300 and 500 words. Someone p...

**Algebra II**

What is the first step for solving this system by substitution? DO NOT SOLVE!! 3x-2y=8 x+7y=10 How many solutions does this system of equations have? 3y-6x=12 y-2x=4 My answer is 1 solution. Is this correct?

**Algebra II**

No one has to answer I figured it out. Sorry to waste your time. JaneLee

**Algebra II**

How do you find the inverse of a matrix?

**Algebra II**

Solve this system by substitution 2x-3y=12 x-4y=6

**Algebra II**

Can a matrix have a two digit number? I have to add the matrices[3 4] +[2 7] [7 6] +[3 8] Sorry this is the only way I know haw to put matrices on the board.

**Algebra II**

Yes I ment 3 x 1 multiplied by 1 x 3. Sorry.

**Algebra II**

What are the dimensions of the answer if you multiply a matrix with the dimensions 3 x 0 by a matrix with dimensions 0 x 3?

**Algebra II**

Solve this system using matrices. 3.7x - 2.3y + 4.2z = 8 2.6x + 4.6y - 3.9z = 10 8x + 2z = 20

**Algebra II**

1. solve this system using matrices: 3.7x-2.3+4.2z=8 2.6+4.6y-3.9z=10 8x+2z=20 2. Write this system as a matrix equation: -2x+y=8 7x-3y=10

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