x*-8 would be -8x
then you would divide -8 by both sides
should get a decimal as your answer I believe
L=16
W=21
Set up a systems of equations:
x=length
y=width
xy=336
x+5=y
Use substitution to solve:
x(x+5)=336
x^2+5x=336
Solve using factoring:
x^2+5x-336=0
(x-16)(x+21)=0
x=16 and x= -21
Since length can't be negative, l=16
To find width, plug length into the first equation:
(16)y=336
y=21
So...
L=16
<span>W=21</span>
A function has a property such as "one input must be mapped to exactly one output." An input is the x-value, and the output is, generally, the y-value. In this set of points above, the input 3 maps to 4 <em>and </em>12, and therefore is not a function.
Answer:
Part a) The lateral area is 
Part b) The area of the two bases together is 
Part c) The surface area is 
Step-by-step explanation:
we know that
The surface area of a right cylinder is equal to

where
LA is the lateral area
B is the area of the base of cylinder
we have


Part a) Find the lateral area
The lateral area is equal to

substitute the values


Part b) Find the area of the two bases together
The area of the base B is equal to

so
the area of the two bases together is

Part c) Find the surface area of the cylinder

we have


substitute
