2x+5
let x be the unknown number, so twice of x (2x) increased (+) by 5
so,
2x+5
Answer:
38
Step-by-step explanation:
k= - 19 / - 0.5= -19*-2=38
<span>(1) narrower and open downward</span>
Answer:
Width=20 feet
Since Length=Width=20 feet, the rectangle is a Square.
Step-by-step explanation:
Area,
To determine the width of the rectangle that gives the maximum area, we take the derivative of A and solve for its critical point.
The width of the rectangle that gives the maximum area =20 feet.
Perimeter of a rectangle=2(l+w)
Perimeter of the rectangle=80 feet
2(l+w)=80
2l+2(20)=80
2l=80-40
2l=40
l=20 feet
Since the length and width are equal, the special type of rectangle that produces this maximum area is a Square.
Answer:
answer is 2:3
Step-by-step explanation:
i solved it including a calculator