Answer:
x = -3, y = 1
Step-by-step explanation:
To find the value of x and y, find the determinant of original matrix, which would be 21.
Then, substitute the value of x with the solutions to the equations and find the determinant of that matrix, which is -63.
Cramer's rule says that Dx ÷ D is the value of x. So, -63 ÷ 21 = -3.
So, the x-value is -3.
You can find the determinant of the y-value in the same way, and you'll find out that y = 1.
Hope this helped! :)
Answer:
33.275
Step-by-step explanation:
<u>1 step:</u> Difference in brackets

<u>2 step:</u> 

<u>3 step:</u> 

<u>4 step:</u>

<u>5 step:</u>

Answer:
15% tip
Step-by-step explanation:
6/40= 0.15= 15%
Answer: 4,536
Step-by-step explanation: Multiply your two 9's to get 81. Multiply your 8 and 7 to get 56. Multiply 81 and 56 together to get your answer of 4,536.
9 x 9 = 81
8 x 7 = 56
81 x 56 = 4,536
Use long multiplication to evaluate this equation.
I hope this helps you out! ♥
Answer: (2, 18)
Step-by-step explanation:
When x=2,
.
So, it should pass through (2, 18).