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3 years ago

I am struggling hard out with linear algebra in math level one

1 answer:

4 0

I would recommend "Introduction to Linear Algebra," by Gilbert Strang. It is a compact but very helpful textbook reference written by a well-known MIT professor. There is a corresponding online MIT course that is free, so that's a bonus. I am currently using it to study linear algebra with no class or previous experience, and I think it does a solid job of explaining things. Each section in the book has a set of questions for you to work through, and answers to selected questions appear in an appendix at the end of the book. Hope this helps!

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What is the solution of the system when just looking at the equations? No Graph!

Kaylis [27]

The slope-intercept form: y = mx + b

m - slope

b - y-intercept

y = 5x + 2 and y = 5x – 8

m = 5 m = 5

b = 2 b = -8

When comparing equations:

1. Put in slope-intercept form.

2. Compare the slopes and the y-intercepts!

This system has no solution.

Because we have the same slopes and different y-intercepts.

If the slopes are the same and the y-intercepts are the same, then that system has infinitely many solutions.

If the slopes are different, then that system has one solution.

6 0

3 years ago

Help! What is the area of the triangle in this coordinate plane?

Novay_Z [31]

Answer: B

Step-by-step explanation:

Multiply 4 x 8 which is 32.

Then divide it by 1/2.

The answer is 16.

7 0

3 years ago

Enter the y coordinate of the solution to this system of equations.

riadik2000 [5.3K]

-x-y=1
-y=1+x
y=-1-x

-1-x=-2x+9
-x=-2x+10
x=10

y=-1-10
y=-11

3 0

3 years ago

If u={1,2,3,4,5},A={2,4} and Beta {2,5,5}find n(AUB)

slavikrds [6]

u={1,2,3,4,5},A={2,4} and Beta {2,5,5}

now, (AUB)={1,3,3,4,5}

[AUB is the set of all elements of set A and set B without any repetition ]

n(AUB)=5

n(AUB)is the total no of elements in set (AUB)

7 0

3 years ago

A regulation basketball hoop has a rim with an 18-inch diameter. What is the approximate length around the rim of a regulation b

MrRissso [65]

You are looking for the circumference. which is C(circumference)= $\pi$ x r (radius)
the radius is =to half of the diameter.
c=56.55

3 0

3 years ago

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