Answer:
D = -47
Step-by-step explanation:
-9x²+5x-2 = 0 (a = -9, b = 5, c = -2)
D = b² - 4ac
= 5² - (4*-9* -2) =
25 - (72) = -47
Answer:
132 cm^2
Step-by-step explanation:
Find all areas and add together.
A = L x W
tA = (L x W)/2
30 + 30 + 48 + 12 + 12 = 132
Answer:
Slope = rise / run
= -12 / 1500 (It's -12 and not 12 because a drop means it's decreasing)
= -0.008
I don't believe that 1 and 17/20 can be simplified any further. It is already in lowest terms.
Let
so that the Lagrangian is
You have
Solving for
, you find four potential critical points, each giving values of
listed below:
Before you choose any of these, keep in mind that
is not a plane, so you need to also check for any possible critical points within the disk
.
The gradient is zero when
and
. At this point, you have
.
So, there are two maxima, both 50, and one minimum, -4.