Answer:
This one (look at the attachment)
Step-by-step explanation:
Answer:
-5
Step-by-step explanation:
From Thursday to Friday the points on the graph change by -5
Answer:
The length of the rectangle is 
Step-by-step explanation:
The perimeter of a rectangle is calculated by 
where 
represents the length and 
represents the width of the rectangle.
The perimeter of a rectangular pool is 
.
<h3>The solution is (x, y) = (-2, 3)</h3>
<em><u>Solution:</u></em>
<em><u>Given system of equations are:</u></em>
4x + 5y = 7 ------ eqn 1
3x -2y = -12 ------- eqn 2
Multiply eqn 1 by 2
8x + 10y = 14 ------ eqn 3
Multiply eqn 2 by 5
15x - 10y = -60 ------- eqn 4
Add eqn 3 and eqn 4
8x + 10y = 14
15x - 10y = -60
( + ) -------------
23x = -46
<h3>x = -2</h3>
Substitute x = -2 in eqn 1
4(-2) + 5y = 7
-8 + 5y = 7
5y = 15
<h3>y = 3</h3>
Thus the solution is (x, y) = (-2, 3)
To simplify this expression, first you would have to distribute the negative or subtraction throughout the second group of parentheses.
After we do this, we get the simplified expression:
ab + 8a + 1 + 6ab - 4
Now, we must simplify like terms, meaning combine the terms that have the same variable.
7ab + 8a - 3
That is your final answer ^^^
