Answer:
identity property of multiplication
No. The new area is 2.25 times the original area. That's (1.5 times 1.5).
Answer:
On the image
Step-by-step explanation:
...............
L = building side
W = non-building side
P = 2W + L = 42 (note only one L because the other L is the building itself)
Solve for L:
L = 42 - 2W
Area = l*w
Area = (42-2W)W = 42W - 2W2
Let area be y, so y = -2W2 +42W
Note this is a parabola pointing down because the coefficient of the W2 is negative. That makes the vertex the maximum for which we are searching.
Vertex of this parabola is at W=-b/2a, if the quadratic is aW2 + bW + c = 0
a = -2
b = 42
W = -42/(2*-2) = -42/-4 = 10.5
W = 10.5
L = 42-2(10.5) = 42-21 = 21
Area = L*W = 21 * 10.5
A = 220.5 ft2
Answer:
D) 312
Step-by-step explanation:
2(6*8)=96
6*9=54
9*10=90
8*9=72
96+54+90+71=312
, then find the value of 
