Will give brainliest and follow u on here basic geometry Pls Help which point do plane abc cde and Age have in common

Mathematics

1 answer:

ANEK [815]3 years ago

7 0

What all they have in common is that they all form sorta of an L shape I'm pretty sure

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Identify the solution to the system of equations

Lina20 [59]

Answer:

(-2, -1).

Step-by-step explanation:

When trying to find the solution to a system of equations <u>graphically</u>, all you need to do is find the <u>point of intersection</u> between the two equations.

In the graph pictured, we can see that the two equations <u>intersect</u> at (-2,-1).

4 0

3 years ago

A sheet of metal that is 30cm wide and 600cm long is to used to make a rectangular eavestrough by bending the shett an equal amo

tensa zangetsu [6.8K]

Answer:

The sheet should be turned up 7.5cm on each side to obtain maximum volume.

Step-by-step explanation:

If we make a rectangular eavesdrop, by bending the sheet along dotted line, then.

Height of eaves trough = x cm

Length of eaves trough = 600 cm

Width of eaves trough = (30 - 2x) cm

We know that Volume is given by:

V = Length · Width · Height

V = (x)(30 - 2x)(600)

V = -1200x² + 18000x

To maximize the volume, we take the derivative and put it equal to zero.

$\frac{dV}{dx} =\frac{d}{dx}( -1200x^2 +18000x)=0\\\frac{d}{dx}( -1200x^2 +18000x) = 0\\-(2)1200x+18000=0\\-2400x+18000=0\\x=\frac{18000}{2400}\\ x=7.5cm$