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Inga [223]
2 years ago
7

Please answer, any good answer will get brainliest.

Mathematics
2 answers:
ch4aika [34]2 years ago
5 0
6. 11 plus t
7. 10 minus t
8. 12 times t
9. t divided by 11
10. 14 divided by t
11. t minus 4
12. 2 times t
Goryan [66]2 years ago
5 0
6) 11 plus t
7) 10-t
8) 12 times t
9) t divided by 11
10) 14 divided by t
11) t minus 4
12) 2 times t
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Matrix multiplication was used to encode a message using the given encoding matrix: [i 47 A=1 |-1 -3] The original message was c
nadya68 [22]

Answer:

A^{-1}=\left[\begin{array}{cc}-3&-4\\1&1\end{array}\right] message SHOW_ME_THE_MONEY_  

Step-by-step explanation:

The matrix

A=\left[\begin{array}{cc}1&4\\-1&-3\end{array}\right]\rightarrow |A|=(1 \times -3)-(-1\times 4)=1\\\rightarrow A^{-1}=\left[\begin{array}{cc}-3&-4\\1&1\end{array}\right] \\

We can check that in fact A*A^⁻1=I_2 the identity matrix of size 2 x 2.

Now the message was divided in 1 x 2 matrices, then we have that the sequence given is the result of multiplying m by A, so to get m again we multiply now by A^⁻1. and we get the next table

Encoded message    Decoded message    message in letters by association

11 52        19 8    S H

-8 -9         15 23  O W

-13 -39        0 13   _ M

5 20         5 0   E _

12 56        20 8    T H

5 20         5 0    E _

-2 7           13 15  M O

9 41         14 5   N E

25 100       25 0    Y _

Then the message decoded is SHOW_ME_THE_MONEY_                                

3 0
3 years ago
Use a standard normal table to find the positive critical value that corresponds to a right tail area of 0.0250.025​, rounding t
IRINA_888 [86]
Let the require value be x, then

P(z > x) = 0.025
1 - P(z < x) = 0.025
P(z < x) = 1 - 0.025 = 0.975
P(z < x) = P(z < 1.96)
x = 1.96

Therefore, <span>the positive critical value that corresponds to a right tail area of 0.025</span> is 1.96
4 0
3 years ago
Find the circumference of a lid with a radius of 0.3 inches.​
stiks02 [169]
The answer is 1.884956
7 0
3 years ago
Read 2 more answers
BRAINLIEST FOR THE CORRECT ANSWER What is the slope-intercept equation for the line below?
disa [49]

Answer:

y=-2x-1

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which of the following is a valid probability distribution? Probability distribution A is shown. The probabilities of 1, 2, 3, 4
arsen [322]

Considering the given probability distributions, distribution D is valid.

<h3>When a probability distribution is valid?</h3>

A probability distribution is valid if:

  • There are no negative probabilities.
  • The sum of all probabilities is of 1.

In this problem, only distribution D has a sum of 1, hence it is the only valid distribution.

More can be learned about probability distributions at brainly.com/question/23670007

#SPJ1

7 0
2 years ago
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