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uysha [10]
2 years ago
11

PLZ I NEED HELP I FORGOT HOW TO DO THIS

Mathematics
1 answer:
Fynjy0 [20]2 years ago
5 0
If it’s asking for the area, wouldn’t it be multiplying it so the answer would be 10560?
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The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code read
stira [4]
The mean of the answer is 20.5 because you add all of the number together and divide by 6 because there's 6 numbers. 
I'm sorry, but I don't know how to do the standard deviation... 
Hope this helped!
4 0
3 years ago
(b) Given that
Gnesinka [82]

Answer:n=-2 or n=4

Step-by-step explanation:

Q is not inversible if det(Q)=0

\left|\begin{array}{ccc}6&7&-1\\3&n&5\\9&11&n\end{array}\right| =0\\\\\\\\6(n^2-55)-3(7n+11)+9(35+n)=0\\\\n^2-2n-8=0\\\\\Delta=36=6^2\\\\n=\dfrac{2-6}{2} =-2\ or\  n=\dfrac{2+6}{2}=4\\

4 0
2 years ago
What is the value of the expression? 8.5 - (-4.8) - 7
marysya [2.9K]

Answer:

6.3

Step-by-step explanation:

8.5 - (-4.8)

Let's focus on - (-4.8)

if a negative number is subtracted, it reverses itself

In other words, if a negative number is being subtracted, it is the same as being added as a positive number

So we change the equation to

8.5 + 4.8 = 13.3

Now we subtract 7 from 13.3

Since positive 7 is being subtracted, the rule for -4.8 does not apply to it

13.3 - 7 = 6.3

5 0
2 years ago
What is the least common denominator of the fraction 2 over x plus the fraction x over x plus 1 plus the fraction x plus 1 over
Anna71 [15]
3x is the least common denominators because you need to be able to make sure all other denominators can go multiple into it.  Since the rest are just x, the largest number of 3x would be the denominator you want. 
5 0
3 years ago
What is the equation of this line?
Juli2301 [7.4K]

Answer:

Not sure but i think its C. y=-2x-3


8 0
3 years ago
Read 2 more answers
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