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3 years ago

What are the three Pythagorean identities?

1 answer:

4 0

$Pythagorean \ Identity : \\\\1) \\\\sin^2\alpha +cos^2\alpha =1\\\\2)\\\\tan^2\alpha +1=sec^2\alpha \\\\ 3)\\\\1+cot^2\alpha =csc^2\alpha$

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What is 713,753 rounded to the nearest hundred thousand?

Pani-rosa [81]

Answer:

700,000

Step-by-step explanation:

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2 years ago

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4 and 5 PLEASEEEE!!!

prohojiy [21]

Answer:

True

Bones seperated from a joint

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2 years ago

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I'm using system of equations and I have to use either substitution or elimination. My two equations are

Svetach [21]

There is no solution. Here is the explanation with both of the methods :)

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2 years ago

14. Write a two-column proof.

scZoUnD [109]

Given:

$\bold{ 8x=4y-20} \\\\ \bold{ y=13}$

Prove:

$\bold{x=4}$

Solution:

$\to \bold{8x=4y-20}..........(i)\\\\\to \bold{ y=13}........................(ii)$

Putting the value of equation (ii) into the equation (i):

$\to \bold{8x=4(13)-20}\\\\\to \bold{8x=52-20}\\\\\to \bold{8x=32}\\\\\to \bold{x=\frac{32}{8}}\\\\\to \bold{x= 4}\\\\$

putting the value x into the equation (i):

$\to \bold{8(4)=4y-20}\\\\\to \bold{32=4y-20}\\\\\to \bold{32+20=4y}\\\\\to \bold{52=4y}\\\\\to \bold{y=\frac{54}{4}}\\\\\to \bold{ y= 13.5}$

Therefore, the value of x= 4

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brainly.com/question/6219408

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2 years ago

Consider a function that describes how a particular car’s gas mileage depends on its speed. What would be an appropriate domain

natta225 [31]

Domain are x values (independent variable);

Speed would be independent so what speeds can be used ? -30 mph, 30 mph, 1000 mph?

Can a car go 0 mph?

What is realistic?

I would say 0 greater or equal to x greater than whatever you think is beyond the max that a car can go.

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2 years ago

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