<span>For the answer to this question,
Let x = depth of the gutter
then
18 - 2x = width of the gutter
Cross section area
A = depth x width
</span><span> = x(18 - 2x)
A = 18x - 2x^2
:
Axis of symmetry will give x value for max area:
x = -b/(2a)
x = -18/(2x(-2))
x = 4.5 inches is the depth for max area
</span><span>Max area: 4.5 * 9 = 40.5 sq/in
I hope my answer helped you.</span>
Answer:
Prime
Step-by-step explanation:
x² + 25 is prime (unfactorable).
Here's what the other options come out to:
(x + 5)(x + 5) = x² + 10x + 25
(x + 5)(x − 5) = x² − 25
(x − 5)(x − 5) = x² − 10x + 25
Answer:r=0.001 I think
Step-by-step explanation:
Answer:
-5.2; -4.75; -9/2
Step-by-step explanation:
Answer:
m=1
Step-by-step explanation:
2m+7=9
subtract 7 on both sides
2m=2
divide 2 on both sides
m=1
hope it helped
