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3 years ago

What is a scalar matrix

2 answers:

7 0

Im not sure what a Scalar Matrix is Iv e never come across that term. Scalar multiplication is the multiplication of a matrix by a scalar, as below

the scalar is in this case 2:-

2 ( 1 3)
( 0 1)

Mandarinka [93]3 years ago

6 0

It is a square diagonal matrix with all its main diagonal entries.

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Given the following geometric sequence, find the common ratio: {225, 45, 9...}

Tom [10]

Answer:

$\frac{1}{5}$ is the common ratio

Step-by-step explanation:

Common ratio(r) states that the ratio of each term of a geometric sequence to the term preceding it.

$r = \frac{a_2}{a_1} =\frac{a_3}{a_2}........\frac{a_{n+1}}{a_n}$

Given the sequence:

225, 45, 9, .........

Here,

$a_1 = 225$

$a_2 = 45$

$a_3 = 9$ and so on...

Using definition to find r.

$r = \frac{45}{225}=\frac{9}{45}......$

After solving we get;

$r = \frac{1}{5}$

Therefore, the common ratio is, $\frac{1}{5}$

8 0

3 years ago

Read 2 more answers

A pawn shop buys a pair of sunglasses for $20 and marks up the cost 15% to make a profit. What is the selling price?

Tema [17]

Well i do believe the new price would be $23.00. hope this helps.

8 0

2 years ago

The vertex of a figure is located at (1, 3). The figure is rotated and the image of vertex is located at (-3, 1) Which of these

Aleksandr [31]

Answer:

LOLOLOLOLO

Step-by-step e

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2 years ago

How many inches are in a foot then converted into millimeters

Semmy [17]

There are 12 inches in a foot. When you convert 12 into millimeters, it becomes 304.8.

6 0

3 years ago

Fraction:

Zanzabum

Answer + step-by-step explanation:

7/10 as a decimal would be 0.7.

7/10 or 0.7 in a word form would be seven tenths.

Hope this helps, if my answer or explanation is wrong

feel free to message me in the comments :).

- genius423

6 0

3 years ago