Answer:
A)1,-3
Step-by-step explanation:
X+2y=5
X-3y=7
To write a determinant we take the coefficient of the variables
To get first row we take the coefficients of x and y from the equation x+2y = 5
x or 1x are same
1x+2y = 5
The coefficient of x is 1 and coefficient of y is 2
So first row is 1 , 2
We do the same for second row
To get second row we take the coefficients of x and y from the equation x-3y = 7
1x - 3y = 7
The coefficient of x is 1 and coefficient of y is -3
So second row is 1, -3
Answer:
$28.91
Step-by-step explanation:
The first step is to calculate the amount of the tip. You multiply the price (24.50) by the tip amount (18% or 0.18). The product is 4.41. Then, you add the tip to the bill. 24.50+4.41=28.91.
For calculating the mean, you want to add up all of the numbers then divide by how many numbers there are. So you'd do:
5+10+12+4+6+11+13+5 then divide that by 8
The answer to your question is: 8.25
Answer:
2
Step-by-step explanation:
Given:
The interval, x = -2 to x = 0.
Required:
Average rate of change from x = -2 to x = 0.
SOLUTION:
From the graph,
If x = -2, f(-2) = 0.
If x = 0, f(0) = 4
Average rate of change =
Where,
Plug in the values into the formula:
Average rate of change from x = -2 to x = 0 is 2.
10% of $2,000 is $200.
30%=3*10%
Therefore:
30% of $2,000 is $600.