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2 years ago

Plz help.

Mathematics

1 answer:

Flauer [41]2 years ago

8 0

Answer:the first question on there is 23

Step-by-step explanation:28-5 equals 23

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At the beginning of a trip, the tank of Chloe's

Dimas [21]

Answer:

3 gallons

Step-by-step explanation:

35 minutes = -1 gallon

5 x 60 = 300

300 + 15 = 315

315 ÷ 35 = 9

12 - 9 = 3

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2 years ago

Please help answer this the best you can for brainlst <3

kumpel [21]

Answer:

it looks like d go's in the first one and b go's in the second one

Step-by-step explanation:

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1 year ago

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30PTs PLZ HelpASAP

Studentka2010 [4]

I think the answer is a

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2 years ago

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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 $20\; \text{and} -20.$

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2 years ago

Jayce travels 30 miles per hour in her car.how many miles does she travel in 4 hours

LekaFEV [45]

Answer:

120 miles

Step-by-step explanation:

30 miles per hour * 4 hours

120 miles

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2 years ago

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