Answer:
x² + 12
48m²
Step-by-step explanation:
Find the diagram attached.
The room can be segregated into two rectangles
The area of the room = Area of bottom rectangle + area of the top rectangle
Area of the bottom rectangle = x * (x-3) = x² - 3x
Area of the top rectangle = 3* (4+x) = 12 + 3x
The area of the room = x² - 3x + 12 + 3x
Area of the room = x² + 12
Hence the algebraic expression that the architect can use to find the area of the room is x² + 12
Given x = 6m
The area of the room = x² + 12
The area of the room = 6² + 12
The area of the room = 36 + 12
<em>The area of the room = 48m²</em>
Your answer would be 4,516
<h2>
Answer:</h2>
The rate of change of the function described in the table is:
<h2>
Step-by-step explanation:</h2>
We know that the rate of the change is the ratio of the change in the y-values to the change in the x-values.
The table of values are as follows:
x y
-1 1/10
0 1/2
1 5/2
2 25/2
3 125/2
The rate of change is calculated as follows:
Answer:
f = -2
Step-by-step explanation:
3f + 7 = 1
or, 3f = 1 - 7
or, 3f = -6
or, f = -6/3
or, f = -2