3 years ago

I need help ASAP I have 8 minutes left

Mathematics

1 answer:

jeka57 [31]3 years ago

4 0

Answer:

The answer is A

Step-by-step explanation:

Find the area of the circle = pi x radius^2

Divide the area by 4 = area of sector

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olganol [36]

Answer

3/4=9/x

3x=9(4)

3x=36

x=36/3

x=12

7 0

3 years ago

What is the most accurate measurement of 1 pound?

PtichkaEL [24]

0.45 Kilogrammes

450 Grams

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3 years ago

The weight of a tree is doubling every 3 years and how many years will be way of the tree be 1600% of its weight now

BARSIC [14]

Doubling every 3 years, meaning 200% every 3 years.

$1600 \div 200 = 8$
$8 \times 3 = 24$
The answer is 24 years.

Hope this helps. - M

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3 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

Create a system of equations whose solution is <br> (−4, 7)<br> .

saveliy_v [14]

So 7 is greater I am not smart I am just trying to answers some question

5 0

2 years ago