Answer:
7 ft
Step-by-step explanation:
Perimeter of a rectangle is denoted by the formula:
, where l is the length and w is the width.
We know that P = 20 and that w = 3. So, let's plug these values in:

Isolate the variable
by subtracting 6 from both sides and dividing by 2:


Thus, the answer is 7 feet.
Hope this helps!
Answer:
- m=y2-y1 / x2-x1
- m= 5-2 / 9-0
- 3/9 =1/3
- y=mx+b
- 2=1/3(0)+b
- 2=b
- slope is 1/3
- y-intr is 2
Step-by-step explanation:
Answer:
I believe the answer is D. Hope this helps
Step-by-step explanation:
Answer:

Step-by-step explanation:
The total surface area of a cone is given by :

Put r = 2r and l = 2l in the above formula

Hence, the total surface area of the cone is
.
Answer:
D
Step-by-step explanation:
its just obvious
go bucs