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3 years ago

Which expression is equivalent to (3x^5+8x^3)-(7x^2-6x^3)

Mathematics

1 answer:

inn [45]3 years ago

7 0

Answer: look at the picture that the answer to it

Step-by-step explanation: Hope this help :D

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Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in t

Tresset [83]

Answer: The volume of largest rectangular box is 4.5 units.

Step-by-step explanation:

Since we have given that

Volume = $xyz$

with subject to $x+2y+3z=9$

So, let $z=\dfrac{9-x-2y}{3}$

So, Volume becomes,

$V=xyz\\\\V=xy(\dfrac{9-x-2y}{3})\\\\V=\dfrac{9xy-x^2y-2xy^2}{3}$

Partially derivative wrt x and y we get that

$9-2x-2y=0\implies 2x+2y=9\\\\and\\\\9-x-4y=0\implies x+4y=9$

By solving these two equations, we get that

$x=3,y=\dfrac{3}{2}$

So, $z=\dfrac{9-x-2y}{3}=\dfrac{9-3-3}{3}=\dfrac{3}{3}=1$

So, Volume of largest rectangular box would be

$xyz=3\times \dfrac{3}{2}\times 1=\dfrac{9}{2}=4.5$

Hence, the volume of largest rectangular box is 4.5 units.

4 0

3 years ago

You move down 6 units. You end at (10, 4). Where did you start?

Alexandra [31]

Answer:

(10,10)

Step-by-step explanation:

coordinates are (x,y)

x is horizontal(left and right), y is vertical (up and down)

going down 6 means subtracting 6 from the second number

lets reverse that to go up and add 6 back

4+6=10

so the original point was (10,10)

8 0

2 years ago

Read 2 more answers

3g+5h+4g-2h please help :(

AveGali [126]

Answer:

7g+3h

Step-by-step explanation:

you combine like terms by adding 3g and 4g and subtracting 2h from 5h.

4 0

3 years ago

Read 2 more answers

can someone help me with this? pls explain the steps. You don't have to do them all I just need to know the steps to solve. Much

Luba_88 [7]

Answer:

can u help me with my history homework and ill help u with urs

Step-by-step explanation:

6 0

2 years ago

Sebastian programs his calculator to cvaluate a linear

jonny [76]

Answer: y = 3/4x

Step-by-step explanation:

Each y-value output is 3/4 of the x-value inputted.

8 x 0.75 = 6

12 x 0.75 = 9

3 0

3 years ago