Answer:
Option B
Step-by-step explanation:
We are given the following system of equations -
Now by Cramer's Rule, we would first write down the matrix of the coefficients , replacing each column with the answer column -
,
Replace each column of the coefficients shown at the top, with the answer column at the bottom respectively -
Now solve through Cramer's Rule -
x = Dx / D = - 6,
y = Dy / D = - 1,
z = Dz / D = 1
<u><em>Solution = ( - 6, - 1, 1 ) = Option B</em></u>
Answer:
3x+3
Step-by-step explanation:
You would just add the three sides so you would get x-3+x+x+6 and when you simplify you would get 3x+3 which would be the answer
Answer:
C) x also increases 5 times its original value
35/5=7
70/10=7
Step-by-step explanation:
Answer:
common difference is 4
Step-by-step explanation:
12-4=8
8-4=4
Answer:
Domain and range: [0, ∞)
Step-by-step explanation:
There is no limit to the number of concert tickets someone can buy, but there cannot be negative concert tickets. The domain, or what the input can be, is [0, ∞) as it can be greater than or equal to 0
The range is the total cost, or what the output can be. Since the total cost is the number of tickets multiplied by 55 (as it is $55 per ticket), this can be represented by 55 * number of tickets. The total cost cannot be negative, but it can be 0 if no one buys tickets. As there is no limit to the amount of tickets someone can buy, there is no limit to what the total cost could be, making the range [0, ∞)
