3 years ago

Question 1 What is the dashed part of the figure below?

Mathematics

2 answers:

Afina-wow [57]3 years ago

8 0

Where is the figure at?

photoshop1234 [79]3 years ago

4 0

Answer:

The answer is line segment.

Step-by-step explanation:

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4 years ago

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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.

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4 years ago

State the y-coordinate of the y-intercept for the function below.

krok68 [10]

Answer:

I think its zero .

Step-by-step explanation:

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3 years ago

Charles is 20% heavier than Edith. If Charles weighs 60kg, what is Edith's weight?

ddd [48]

Charles' weight = Edith's weight + 20% of Edith's weight

We'll use a variable to represent Edith's weight, x.

The decimal form of 20% is 0.2.

60 = x + 0.2x

60 = 1.2x

x = 50

Edith's weight is 50kg.

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The population of a certain inner-city area is estimated to be declining according to the model P(t)=331,000e−0.017t, where t is

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sorry i have to comment to "answer" a question so i can ask a question. sorry have a nice day.

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