7 squared = 49 and 9 squared= 81 add up 49 and 81 and you get 130
Answer:
4553332 is the answer
Step-by-step explanation:
A triangle's angle measures add up to 180°.
67 + 90 = 157
180 - 157 = 23
The last angle measure is 23°.
The longer the side length, the larger the angle opposite it is. And vice versa. The shorter the side length, the smaller the angle opposite it is.
Side Length: ∠ Measure Opposite Side:
5 in 23°
12 in 67°
13 in 90°
Answer:
x=400000\\y=600000\\z=1000000
Step-by-step explanation:
Given that a trust account manager has $2,000,000 to be invested in three different accounts. The accounts pay 6%, 8%, and 10%, and the goal is to earn $172,000 with the amount invested at 10% equal to the sum of the other two investments.
To accomplish this, assume that x dollars are invested at 8%, y dollars at 10%, and z dollars at 6%.
The equations formed would be

Interest amount = 

these three can be written in matrix form as
![\left[\begin{array}{ccc}1&1&1\\6&8&10\\1&1&-1\end{array}\right] =\left[\begin{array}{ccc}200000\\17200000\\0\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%261%261%5C%5C6%268%2610%5C%5C1%261%26-1%5Cend%7Barray%7D%5Cright%5D%20%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D200000%5C%5C17200000%5C%5C0%5Cend%7Barray%7D%5Cright%5D)
The inverse of the matrix is
![\left[\begin{array}{ccc}9/2&-1/2&-1/2\\-4&1/2&1\\1/2&0&-1/2\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D9%2F2%26-1%2F2%26-1%2F2%5C%5C-4%261%2F2%261%5C%5C1%2F2%260%26-1%2F2%5Cend%7Barray%7D%5Cright%5D)
X = A inverse *B
Using this we get

Answer:
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Step-by-step explanation: