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2 years ago

What do you think matrices are used for? What things can be represented with matrices?

Mathematics

1 answer:

emmainna [20.7K]2 years ago

8 0

Answer:

Matrices are a useful way to represent, manipulate and study linear maps between finite-dimensional vector spaces (if you have chosen basis).

Matrices can also represent quadratic forms (it's useful, for example, in analysis to study hessian matrices, which help us to study the behavior of critical points).

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PLEASE HELP ASAP !!!!! I DONT HAVE MUCH TIME

Anna11 [10]

Answer:

The correct answer would be chart A.

Step-by-step explanation:

7 0

2 years ago

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Evaluate the function. f(x) = -x2 + 5x + 15 Find f(9)

Keith_Richards [23]

Answer:

f(9) = 42

Step-by-step explanation:

f(9) = (-9)*2 + 5*9 +15

= -18 + 45 + 15

= 42

5 0

3 years ago

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It takes 154 cubes with side lengths of 1/2 inch to fill a rectangular prism. What is the volume of the rectangular prism? Show

Tju [1.3M]

Answer:

The volume of the rectangular prism is 19.25 inches³.

Step-by-step explanation:

Given:

It takes 154 cubes with side lengths of 1/2 inch to fill a rectangular prism.

Now, to find the rectangular prism's volume.

We first find the volume of a cube to fill in the rectangular prism.

The side length of the cube = $\frac{1}{2}\ inch.$

Now, to get the volume of cube we put formula:

$Volume=(side)^3\\\\Volume=(\frac{1}{2})^3 \\\\Volume=\frac{1}{8}\ inch^3.$

Thus, the volume of a cube is $\frac{1}{8} \ inch^3.$

Number of cubes = 154.

According to question, it takes 154 cubes to fill the rectangular prism.

So, to get the volume of prism we need to find the volume of 154 cubes.

Now, to get the volume of 154 such cubes we multiply the volume of a cube by number of cubes:

$\frac{1}{8}\times 154\\\\ =\frac{154}{8}\\\\ =19.25\ inches^3.$

Therefore, the volume of the rectangular prism is 19.25 inches³.

3 0

3 years ago

How to do this question

Alenkinab [10]

Answer:

10 tacos costs $15.00

Step-by-step explanation:

I like to use ratio's to solve this type of problem. I will put cost over number of tacos.

$6.00 x dollars

-------- = --------------

4 tacos 10 tacos

Using cross products

6 * 10 = 4 * x

60 = 4x

Divide each side by 4

60/4 = 4x/4

15 =x

10 tacos costs $15.00

6 0

3 years ago

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When individuals in a sample of 150 were asked whether or notthey supported capital punishment, the following information was ob

tensa zangetsu [6.8K]

Answer:

a. distribution is uniform

Step-by-step explanation:

Given that a sample of 150 were asked whether or notthey supported capital punishment.

we prepare contingency tab

Expected = 50 50 50

Chisquare = 4

chi square 2 2 0 4

p value 0.135

Since p >0.05 we accept H0

a. distribution is uniform

3 0

3 years ago