3 years ago

Anyone knows more about algebric expressions??? Who voulenteer to teach me

Mathematics

1 answer:

Tresset [83]3 years ago

5 0

algebraic expressions could be easy or hard

how difficult are u talkin

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7th grade help me plzzzzz

Gekata [30.6K]

Answer:

fifteen, "number sentence"

Step-by-step explanation:

5 + 5 +5 = 15

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2 years ago

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.

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3 years ago

Help me on this please appreciate it

lakkis [162]

Answer:

Step-by-step explanation:

reflections don't change size or shape just like mirrors

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2 years ago

Find the measure of the indicated angle to the nearest degree

aleksandrvk [35]

Tan^-1 x (2/3) = 34°

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2 years ago

When my car's gas tank is 80% empty, it contains 3 gallons of gas. How many gallons

Fofino [41]

The answer is 12 gallons

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2 years ago

Read 2 more answers

Anyone knows more about algebric expressions??? Who voulenteer to teach me​

Anyone knows more about algebric expressions??? Who voulenteer to teach me