Friday

January 30, 2015

January 30, 2015

Posted by **mysterychicken** on Sunday, May 1, 2011 at 4:37pm.

5. Solve for x in the following system:

6x + 6y = -2

y = -x

I also need help in these:

38. We can take the product AB only if the number of columns of A equals the number of rows of B. -True?

40. The graph of the following system yields perpendicular lines:

x + 2y = -10

-4y = 2x + 20

True or False?

42. If we multiply a 2 x 2 matrix with a 2 x 1 matrix, the product is a 2 x 1 matrix.

-False?

Thanks

-MC

- Algebra 2 -
**bobpursley**, Sunday, May 1, 2011 at 4:41pmThere is no solution, the lines are parallel.

38. true

40. put each in slope intercept form:

y=-x/2 -5

y=-x/2 -5

false, it is the same line.

- Algebra 2 -
**mysterychicken**, Sunday, May 1, 2011 at 5:12pmWait, so 42 IS false?

-MC

**Answer this Question**

**Related Questions**

Algebra II - Right now we're doing systems of Linear Equations in Three ...

Algebra, help needed - I need help I don't know how to solve this system Solve ...

Algebra - I need help I don't know how to solve this system Solve the following ...

Algebra 2 - 1. What is the slope of the line perpendicular to y-6=-2x-4? 2. ...

Math - We have an important chemsitry test due and I want to make sure that I do...

Algebra - To solve the system of equations, which expression could be ...

Algebra II - Solve the following system. Then explain what your answer means in ...

math - the sum of a number and 3 times that number is 76. what is that number? ...

math - Please explain in detail how to solve each question: At a certain high ...

Algebra - Use Cramer's rule to solve the following system of equations. If D=0, ...