Answer:
The area would be '15l - l²
Step-by-step explanation:
Given,
By 30 feet of wire fencing we need to make a rectangular shape,
Thus, perimeter of such rectangle = 30 feet,
We know that,
Perimeter of a rectangle = 2( length + width)
if length = l feet,
⇒ 2(l + width) = 30
⇒ 2l + 2 × width = 30
⇒ 2 × width = 30 - 2l
⇒ width = 
= (15-l) feet,
Now, area of the rectangle,
A = length × width
= l × (15-l)
= 15l - l²
Which is the required polynomial expression.
Note :
Polynomial expression : an expression having terms consisting coefficients and variables separated by addition, subtraction and multiplication.
Answer:
the first one is 15 & the second missing number is 8
multiply 15×5 & divide it by 5 & multiply 24×2 n divide it by 6
This is a pretty basic multiplication problem.
If one box has 789 pieces of paper in it and there are 25 boxes, you will simply multiply 789 x 25
789 x 25 = 19,725.
This shows that there are 19,725 pieces of paper in the 25 boxes of paper.
Since this is a right triangle, you can use the pythagorean theorem, 
, to find XY. Since we know that 15 and 17 are our legs and that XY is the hypotenuse, we can solve it as such:
In short, XY is √514, or 22.67 rounded to the hundreths, units long.
I believe the answer is B I pretty sure
