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Eva8 [605]
3 years ago
7

Amir encoded a secret phrase using matrix multiplication.

Mathematics
1 answer:
shtirl [24]3 years ago
4 0

This is the question

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How do you get figure 1 to 2?
Hatshy [7]
Do this on paper, please. 
First, rotate the larger rectangle about the origin so that it ends up being a vertically-oriented rectangle in the fourth quadrant (next to the smaller rectangle).  What would you then have to do to this large, vertical rectangle so that it has the same size and shape as does the small vertical triangle?
5 0
3 years ago
I will thank you!!!!
Hitman42 [59]
What question do you need help on?
6 0
3 years ago
Is this graph a function or not a function?
weeeeeb [17]

Answer:

It is a function.

Step-by-step explanation:

You can test if a graph is a function if you draw a vertical line anywhere on the graph and you see it hits two points.

This is the table for the graph.

\left[\begin{array}{ccc}x&y\\-3&0\\0&1\\3&2\end{array}\right]

Remember these rules:

  • Each x value, or input, has its unique y value, or output
  • If you draw a vertical line anywhere on the graph, it should only go through one point

We can check these two rules for this graph:

  • Does each x value have its own, unique y value? Yes
  • If you draw a vertical line anywhere on the graph, does it only go through one point? Yes, there are no overlaps

Keep in mind that two different x-values can have the same y value.

Figure 1:

It has two x values with the same y-values.

Figure 2 and 3:

The vertical line goes through two points. So the same x-value has two different y-values.

-Chetan K

4 0
2 years ago
Yesterday it took 40 minutes to drive to school. Today is took 32 minutes to drive to
Leokris [45]

Answer:

20%

Step-by-step explanation:

To find the percent decrease, we do old number subtracted from the new numbers over old.

We do

40 - 32 = 8

Then we put the 8 over the old and get

8/40

In percentage form it would be 20%

8 0
3 years ago
The length of a rectangle is twice the width. If the perimeter of the rectangle is 60 units, find the area of the garden.​
AlexFokin [52]
Perimeter = (length+width) x 2


Let w units be the width of the rectangle.

Length of the rectangle = 2w

Perimeter:
(2w+w) x 2 = 60

(3w)2 = 60

6w = 60

w = 10


Area:
2(10) x 10

= 20 x 10

= 200 units

4 0
2 years ago
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