Step-by-step explanation:
The elements of matrices are represented in the form
Here r is the row number and c is the column number.
Given matrix is:
![A = \left[\begin{array}{ccc}3&6&9\\2&4&8\end{array}\right]](https://tex.z-dn.net/?f=A%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%266%269%5C%5C2%264%268%5Cend%7Barray%7D%5Cright%5D)
The elements of matrix will be represented by a_{r,c}
We have to find 
Which means that the first row and third column.
The first row is: 3 6 9 and the element in third column is: 9
So,
Keywords: Matrices, Elements
Learn more about matrices at:
#LearnwithBrainly
Answer:
60°
Step-by-step explanation:
90°+30°=120°
180°_120°=60°
Answer in order
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answer
A. -4.6 - (0.4 + 7.2)
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answer
B. -10 + (-90) + (-40)
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answer
associate property of addition
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answer
Commutative <span>Property
</span>
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answer
-147
Answer:
-17x=234
Step-by-step explanation:
Given that:
-17x = 234
Answer:
Step-by-step explanation:
let x = the amount of money in the second piggy back
We assume that the second piggy bank has MORE than the piggy bank with $7.31 in it:
x - 7.31 ≤ 10
<u>Solution</u>
Add 7.31 to both sides: x - 7.31 + 7.31 ≤ 10 + 7.31
⇒ x ≤ 17.31
