Area=legnth times width
we notice this is a special case
(a+b)(a-b)=a^2-b^2
area=(a+3b)(a-3b)=a^2-9b^2
area=a^2-9b^2
Answer:
41 or 20
Step-by-step explanation:
good luck
follow me for more:>
Answer:
The age of the mother is 42 years, while the age of the girl is 7 years.
Step-by-step explanation:
Given that 1/6 of the age of a mother is the age of her daughter, to determine the age of the mother if the difference of their age is 35, the following calculations must be performed:
6 - 1/6 = 5/6
5/6 = 35
35/5 = 7
7 + 35 = 42 = 7 x 6
7 = 7 x 1
Therefore, the age of the mother is 42 years, while the age of the girl is 7 years.
Answer:
Step by Step:
x-2y=4
+2y +2y
x=-2y+4
x-2y=4
-4 -4
x-2y-4=0
+2y +2y
x-4=2y
Divid by 2
1/2x-2= y
x=-2y+4
x=-2(1/2x-2)+4
x=-x+4+4
x=-x+8
+x +x
2x= 8
x=4
y=1/2x-2
y=1/2(4)-2
y=2-2
y=0
(4,0)
Answer:
less
Step-by-step explanation:
