Answer:
1.341
Step-by-step explanation:
I'm smart at maths
Since you have the length and the area, you can assume the width
1496/44 = Width Because Area = L * W
Width = 34
So this is a ratio problem
44/11 = ratio
So, the ratio is 4:1
So since we have the width, we can divide the width of the school banner by 4 because of the scale
34/4 = 8.5 = width of the sign
The area of the sign is 8.5*11 = 93.5
and the perimeter is just that,
8.5 * 2 + 11*2 = 39
Perimeter = 39 inches
Area = 93.5 inches²

There is only one change of sign, so there is only one possible positive root.

There are five changes of signs, so there are 5,3 or 1 possible negative roots.
The number of complex roots can be equal to 4,2 or 0 (degree of a polynomial - possible positive roots - possible negative roots)
the expression
as a sum or difference is
and , is simplified as
.
<u>Step-by-step explanation:</u>
We need to rewrite the expression as a sum or difference , them simplify if possible , And the expression is :
From trigonometric identity we know that

Using the above identity we get:
⇒
⇒ 
⇒ 
⇒ 
⇒ 
Therefore , the expression
as a sum or difference is
and , is simplified as
.