3 years ago

Help me with #4 pleasedeeee

Mathematics

1 answer:

Romashka [77]3 years ago

4 0

Answer:

$\dfrac{dy}{dx}=-\dfrac{2x-y-1}{2y-x-1}$

Step-by-step explanation:

Differentiating, you get ...

... x·dy +y·dx +dx +dy = 2x·dx +2y·dy

Collecting terms gives ...

... dy(x +1 -2y) = dx(2x -y -1)

... dy/dx = -(2x -y -1)/(2y -x -1)

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Help! I need these metric units converted into customary!

Liono4ka [1.6K]

Answer:

Inches,Foot ,Yards and Miles are customary unit used here.

$2.54\ cm = 1\ inch$

$0.30\ m = 1\ Foot$

$0.91 \ m = 1\ Yard$

$1.61\ km=1\ mile$

Step-by-step explanation:

To convert the metric units to customary units.

We have,

$2.54\ cm = 1\ inch$

Note:A centimeter, or centimeter, is a unit of length equal to one hundredth of a meter. There are 2.54 centimeters in an inch.

$0.30\ m = 1\ Foot$

Note:A foot is a unit of length equal to exactly 12 inches or 0.3048 meters.

$0.91 \ m = 1\ Yard$

Note:A yard is a unit of length equal to 3 feet or exactly 0.9144 meters.

And

$1.61\ km=1\ mile$

Note:A mile is a unit of distance equal to 5,280 feet or exactly 1.609344 kilometers.

An Image is attached here with.

So the customary units are inches,foot,yard and miles.

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