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3 years ago

Determine which of the following formulas hold for all invertible n×n matrices A and B.

Mathematics

1 answer:

garik1379 [7]3 years ago

4 0

Answer:

1 hold

2 hold

3 does not hold

4 hold

5 hold

6 hold

7 does not hold

8 does not hold

9 Does not hold

10 Hold

Step-by-step explanation:

The detailed step by step verification is as shown in the attachment

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72/63 in simplest form

Viktor [21]

$\frac{72}{63}$
Divide both the numerator and denominator by 9 to get;
$\frac{8}{7}$
Convert the improper fraction to a mixed number;
$\frac{8}{7} =1 \frac{1}{7}$

3 0

2 years ago

How to solve Y = eight, X =2 and direct variation

rodikova [14]

Answer:

The answer is k = 4.

Step-by-step explanation:

Given:

Y = 8 and X = 2.

Now, to solve direct variation.

$y$ direct with $x$ .

Now, using equation to solve direct variation:

$y=kx$

$8=k\times 2$

Dividing both sides by 2 we get:

$4=k$ .

Therefore, the answer is k = 4.

5 0

3 years ago

A right triangle has a length of 30 and a side with a length of 18. A side with a length of 24 is opposite angle theta. What sta

tekilochka [14]

Answer:

$\text{A. }\cos \theta = \frac{3}{5}$

Step-by-step explanation:

See attached file for complete work.

Download pdf

7 0

2 years ago

The components of vector A are (10.5, 10.2). Waht is the magnitude of the vector?

Nataly_w [17]

Answer:

$||\overrightarrow{v}||\approx14.64$

Step-by-step explanation:

The magnitude of a vector $\displaystyle \overrightarrow{v}=\langle x,y\rangle$ is $||\overrightarrow{v}||=\sqrt{x^2+y^2}$ , which essentially describes the length of the vector itself between the initial and terminal points:

$||\overrightarrow{v}||=\sqrt{x^2+y^2}\\\\||\overrightarrow{v}||=\sqrt{(10.5)^2+(10.2)^2}\\\\||\overrightarrow{v}||=\sqrt{110.25+104.04}\\\\||\overrightarrow{v}||=\sqrt{214.29}\\\\||\overrightarrow{v}||\approx14.64$

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2 years ago

Math please help me :)

Arisa [49]

Answer:

D, My original answer was A (-6,2) B (-6,5) but that's particular order is not an option but if you flip it you get answer D

5 0

3 years ago