1)Volume= π r² h
radius=r
hight=hight
2) A= 2 π r h + 2 π r²
A= surface area
r= radius
h= hight
Answer:
23ft
Step-by-step explanation:
Area of the rectangle = LW
L is the length
W is the width
Given
Area = 414ft²
If the length of this garden is 5 feet longer than its width, then;
L = W+5
Substitute into the formula
414 = (W+5)W
414 = W²+5W
W²+5W-414 = 0
W = -5±√5²-4(-414)/2
W = -5±√25+1656/2
W = -5±√1681/2
W = -5+41/2
W = 36/2
W = 18ft
Since L = W+5
L = 18+5
L = 23ft
Hence the length of the rectangle is 23ft
Is the answer suppose to be in a percentage?
Answer:
i think its A or D but idrk, it has been 3 days so what did you choose and did you get it right or wrong?
Step-by-step explanation:
Answer:
(a) 0
(b) -3/26
Step-by-step explanation:
(a)
We essentially plug 1 in for x and 2 in for y.
Our expression is 
, so making the correct substitutions yields:
So, the answer for part (a) is 0.
(b)
Again, we're now plugging in 1 for x and 5 for y:
So, the answer for part (b) is -3/26.
