Question

the easiest way to solve a set of linear eqns in 3 variables using matrix or determinents

Answer 1

Determinents allow you to see if the system is linearly independant (or not) without needing to actually solve the system. det() = 0?

i.e.
1x + 2y + 3z = 0 (eq 1)
-2x + 0y -2z = 2 (eq 2)
-1x + 2y + 1z = 2 (eq 3)

is a system that's not linearly independant (eq 3 = eq 2 + eq 1) Therefore, there is not a unique solution for the 3 variables x,y, & z.

Answer 2

Cramer's Rule

Answer 3

best way is to find through Cramer's Rule

Answer 4

Best way to find it is to use Gaussian elimination. Cramer's rule is computationally inefficient, but easier on the brain if you have a calculator.

Answer 5

Math help

Answer 6

Math help

Answer 7

Joe takes part in math competitions. A particular contest consists of 25 multiple-choice questions, and each question has 5 possible answers.

Answer 8

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Answer 9

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Answer 10

Math help please

Answer 11

For the graph, which are possible functions u0192 and g?

https://dlap.gradpoint.com/Resz/~0.WizMacW1O0YyUA6.3mlS9pk2V_dxq3Z3V_nFYjSGI1H7UJXF1eNTFTnwZ-I/7234256,D94/Assets/questions/quiz/precalculus/pcalexpo/IMG73460.png

Answer 12

i need some help please

Answer 13

Select the correct answer.
Read this excerpt from "The Third Philippic," written by Demosthenes in 342 B.

Answer 14

Jackson is teaching a class the concept of the binary number system. Which term w

Answer 15

Affirmative action policies were originally designed to _____.

make sure a certa

Answer 16

What two Democratic leaders constantly challenged President Carter during his adm

Answer 17

Is the function u0192(x) = xu2078 an exponential function? If so, identify the base.

Answer 18

Perform the arithmetic operation. Write it in the simplest form. 5 yd. 1 ft. - 2 yd.

Answer 19

The narrator's description of Kunthi as "a thin, slight girl" connotes that

Answer 20

Math help

Answer 21

I just write whatever comes to mind, so..ye.

- Endless -

Answer 22

Which term describes the point where the perpendicular bisectors of the three sid

Answer 23

Write the Standard Form of the line with x-intercept of 3 and y-intercept of 4.

Answer 24

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