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kozerog [31]
2 years ago
5

What is 8/9 times 4/7

Mathematics
1 answer:
Tanzania [10]2 years ago
4 0
8/9 times 4/7 equals 0
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Sheila is going to divide a 38-inch piece of ribbon into 5 equal pieces. She says each piece
DENIUS [597]

Sheila is incorrect! I think what she did is think the 38 was actually a 35, which WOULD of made her statement true, but since it's 38, she's very incorrect. Sheila should be using the quotient for the size of each piece. 38 divided by 5 is 7.6. The correct answer is 7.6 inches.

5 0
3 years ago
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
2 years ago
Answers options are <br><br><br> 6/26<br><br> 8/18<br><br> 14/12<br><br> 14/26<br><br> Pls help
prohojiy [21]

Answer:

14/26

Step-by-step explanation:

6+8=14

14+12=26

6 0
2 years ago
A coin is flipped 80 times. It lands tails 47 times. What is the P (Heads)?<br> percentages pls
Thepotemich [5.8K]

Answer:

%41.25

Step-by-step explanation:

80 - 47 = 33

33 divided by 80

convert to percentage

5 0
3 years ago
Suppose that one worker can produce 15 cookies, two workers can produce 35 cookies together, and three workers can produce 60 co
Ksenya-84 [330]
Suppose that one worker can produce 15 cookies, two workers can produce 35 cookies together, and three workers can produce 60 cookies together. What is the marginal product of the 3rd worker? Select one: a. 20 cookies b. 25 cookies c. 60 cookies d. 35 cookies
7 0
3 years ago
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