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2 years ago

Which correctly gives the location of the point (–19, 0)?

Mathematics

2 answers:

mafiozo [28]2 years ago

8 0

(-19,0) is located on the x-axis

xxTIMURxx [149]2 years ago

6 0

<span>A. x-axis</span>
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26 was divided by a power of ten to get 0.26. What power of ten was it divided by?

Inga [223]

100

I got the answer by 26 divided by 0.26

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2 years ago

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

I need some assistance. Please help!

horsena [70]

Answer: Hope this helps you!

Edit: the 2nd photo is more in detail and should help you better. Good luck!

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

3w + 2 = 7w Please help

mash [69]

3w +2 =7w
-3w -3w
2=4w
Divide each side by 4
1/2=w

Check your answer:
3 (1/2) + 2 = 7 (1/2)
(3/2) + (4/2) = (7/2)
(7/2) = (7/2)

Hope this helps.

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2 years ago

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Solve 42 div 3 using an area model

ololo11 [35]

What's area model ? ☺☺☺☺

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3 years ago