Answer:
Step-by-step explanation:
i is an imaginary unit, this means
Rewrite -5 as 
then
Rewrite -25 as 
then
Answer:
35ft squared
Step-by-step explanation:
First lets try solving the rectangular middle part
Width is 3 ft
Height is 5ft + 4ft = 9ft
3*9ft= 27ft. This is area of middle rectangular section
For the triangle, we subtract 3 from the rectangle from 11ft and divide by 2 because the two triangle on the edges are the same.
11-3=8
8/2=4
Triangle area formula = Base*Height / 2
4*4/2
16/2
4ft squared
and the other triangles area is also 4ft squared because they are congruent. So you add all the sections of the area up
27ft+4ft+4ft=35ft squared
35ft squared is the answer.
Hope this helps :)
Answer:
(a+b)^2 = a^2 + 2ab + b^2
(a-b)^2 = a^2 - 2ab + b^2
(a-b)(a+b) = a^2 - b^2
Step-by-step explanation:
They differ because you can either add the property or multiply
Answer:
Given expression has the value 69
Step-by-step explanation:
Given equation is:
Now we have to put x = 3
So the equation will become:
By simplifying:
As 
and 2*3 = 6
So the above equation will become:
So the value of given expression is 69.
i hope it will help you!
Answer:
it's 67
Step-by-step explanation:
