Answer:
(5 * 10")
Step-by-step explanation:
9-4 = 5
I don't understand the "" part but im pretty sure this is what you meant
X=length
y=width
Area (rectangle)=length x width
we suggest this system of equations:
y=x/5
xy=9/20
solve this system of equations by substitution method:
x(x/5)=9/20
x²/5=9/20
Least common multiple=20
4x²=9
x²=9/4
x=⁺₋√(9/4)
we have two solutions:
x₁=-3/2 it does not validate
x₂=3/2 ⇒y=x/5=(3/2)/5=3/10
The dimensions of the lake are:
lengh=3/2 miles
width=3/10 miles
to check:
Area=3/2 miles x 3/10 miles=9/20 miles².
width is 1/5 the length of the lake ⇒ 3/10 miles=(3/2) /5 miles
To solve A, complete the square for both variables.
The center is (6,4)
A solid figure with a circular base and a curved surface would be a <em><u /></em><u />
cone.
I hope this helps you! Good luck :)
Answer:
20
Step-by-step explanation:
You multiply the 80 and the 18 and then you add 82