![\left[\begin{array}{cc|c}-1&-1&-12\\-3&2&32\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Cc%7D-1%26-1%26-12%5C%5C-3%262%2632%5Cend%7Barray%7D%5Cright%5D)
Multiply through row 1 by -1:
![\left[\begin{array}{cc|c}1&1&12\\-3&2&32\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Cc%7D1%261%2612%5C%5C-3%262%2632%5Cend%7Barray%7D%5Cright%5D)
Add 3(row 1) to row 3:
![\left[\begin{array}{cc|c}1&1&12\\0&5&68\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Cc%7D1%261%2612%5C%5C0%265%2668%5Cend%7Barray%7D%5Cright%5D)
Multiply through row 2 by 1/5:
![\left[\begin{array}{cc|c}1&1&12\\0&1&\frac{68}5\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Cc%7D1%261%2612%5C%5C0%261%26%5Cfrac%7B68%7D5%5Cend%7Barray%7D%5Cright%5D)
Add -1(row 2) to row 1:
![\left[\begin{array}{cc|c}1&0&-\frac85\\&&\\0&1&\frac{68}5\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Cc%7D1%260%26-%5Cfrac85%5C%5C%26%26%5C%5C0%261%26%5Cfrac%7B68%7D5%5Cend%7Barray%7D%5Cright%5D)
Answer:
Eh you got 3 wrong
Step-by-step explanation:
!! You got wrong !! First picture the answer is A b/c a function is when the X value only has 1 Y value assigned to it.
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!! You got wrong !! The second picture, the answer is 35 T-Shirts
12T + 25S = 795
T - 20 = S
12T + 25(T - 20) = 795
12T + 25T - 500 = 795
37T = 1295
T = 35
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!! You got wrong too !! First one has a solution of 0. The answer is the last answer choice.
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You got this one correct, it is (2,3)
Answer:
c = 50.27in
Step-by-step explanation:
Answer:
The approximate volume of the sphere= 4187 cubic units
Step-by-step explanation:
<u>Points to remember</u>
Volume of sphere = (4/3)πr³
Where 'r' radius of sphere
<u>To find the volume of sphere</u>
It is given that the radius of the sphere is 10 units. ,
Here radius r = 10 units
Volume = (4/3)πr³
= (4/3) * 3.14 * 10³
= (4/3) * 3140
= 4186.666 ≈ 4187 cubic units
Answer:
96 miles
Step-by-step explanation:
3 multiplied by what gives you 24?
8 right?
So, what you want to do is 8 multiplied by 12.
Doing so you will reach the conclusion that 12 multiplied by 8 equals 96.
So you can go 96 miles on a speedboat with 12 gallons of gas.
I hope this helped you :)
