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kramer
3 years ago
14

Why is the number of inches different from the number of feet?

Mathematics
2 answers:
-BARSIC- [3]3 years ago
8 0
Because ft is bigger than inches and 1ft is 12 inches
olga55 [171]3 years ago
6 0
Feet is bigger than inches
1 feet equals 12 inches
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Find the absolute maximum and minimum values of f(x,y)=xy−4x in the region bounded by the x-axis and the parabola y=16−x2.
skad [1K]

Answer:

The absolute maximum and minimum is 20\; \text{and} -20.

Step-by-step explanation:

We first check the critical points on the interior of the domain using the

first derivative test.

f_x=y-4=0

f_y=x=0

The only solution to this system of equations is the point (0, 4), which lies in the domain.

f_{xx}=0, \;f_{yy}=0\; \text{and}\; f_{xy}=-1

\Rightarrow f_{xx}f_{yy}-f_{xy}=o-1=-1

\therefore (0,4) is a saddle point.

Boundary points -  (4,0),  (-4,0), (0,16)

Along boundary  y=16-x^2

   f=x(16-x^2)-4x

=16x-x^3-4x

\Rightarrow f^'=16-3x^2-4=0

\Rightarrow 3x^2=12

\Rightarrow x=\pm2,\;\;y=14

Values of f(x) at these points.

\begin{array}{}(4,0)=-16\\(-4,0)=16\\(0,16)=0\\(2,14)=20\\(-2,14)=-20\end{array}

Therefore, the absolute maximum and minimum is 20\; \text{and} -20.

6 0
3 years ago
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4 years ago
A camera has a list price of $579.99 before tax. If the sales tax rate is 7.25%, find the total cost of the camera with sales ta
dezoksy [38]

Answer:

519.99(.0825) = 42.899

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Step-by-step explanation:

3 0
3 years ago
The parent graph (x) = y' wastransformed to form the graph ofb(x) = 6x. Which describes thetransformation?
aivan3 [116]

correct answer is option C, i.e. vertical shrink by a factor of 1/6.

Given:

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Find:

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Explanation:

when we transformed the graph

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Which inequality defines the shaded region graphed below?
masha68 [24]

Answer:

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