Calculus

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People needed a way to measure things

All I know is it takes about 4 years of college/

2 litres = 2,000 millilitres.

184.909242

The y intercept is at co-ordinates (0,b).

X triangle

Find the x-intercepts of f(x)=(x+4)/x

The instructions simply mean that you should set f(x) equal to 0. To get the answer, you must set the numerator equal to zero, so x+4=0. Then x=-4 is the answer.

According to the Pythagorean identity, it is equivalent to sin2theta.

-7y + 21 = 3x

Add '7y' to both sides

21 = 3x + 7y

Subtract '3x' from both sides

21 - 3x = 7y

'Swop around'.

7y = -3x + 21

Divide both sides by '7'

y = -(3/7)x + 3

The slope of a straight line is the coefficient of 'x'

In this case it is ' -3/7'.

The answer is 32. A negative number times a negative yields a positive. Adding a negative number is the same as subtracting a positive.

-2

Rounded to three decimal places, (2998 x 108) / (510 x 1014) = 0.626

2x2+5x+3 = (2x+3)(x+1) when factored

The balue is giveh beloq.

you times that number by the one replaced with x

Geometry

2x + 5x = 35

It is a linear equation in x so, it as only one value of x.

2x + 5x = 35

taking common x on the left side

(2 + 5 )x = 35

7x = 35

dividing by 7 on both sides, we get

7x/7 = 35/ 7

X= 5

????RIGHT????

8x-16=4x+4

when solving equations try to get the variable on just one side and the non-variables on the other. In this problem lets first subtract 4x from both sides.

8x-16=4x+4

-4x -4x

4x-16=4

Now add 16 to both sides this will leave all the xs in one side and all of the non x on the other.

4x-16=4

+16 +16

4x=20

Now to leave the x by itself divide both sides by 4.

4x=20

/4 /4

x=5

That's your final answer.

For a relation to be a function, for every value of x there must be exactly one value of y. Or whatever other variables you choose. A function may also depend on more than one variable, but I am illustrating the simplest case here.

For example, in y = x2, for every x there is exactly one y.

On the other hand, the equation x2 + y2 = 1describes a unit circle; it is a relation (a rule that includes certain elements in the product set - in this case, the rectangular coordinate plane), but it is not a function: for any x, such that -1 < x < 1, there are two corresponding values of y.

5x+1

Do the right thing and get him a citizenship. It won't matter how skilled he was when your business is getting grilled for having an illegal in your employment.

x+32 is an expression that says take a number and add 32 to it. In order to simplify it we need more information. For example, if it says x+32= something, we could solve that.
But in this case, there is nothing more you can do. If you understand that x is just a placeholder for a number and the algebra is saying add 32 to it, then you will understand why there is not more to do.

"1 plus 1" has no variable, no "equals" sign, and no unknown.

It's not an equation, and it asks no question.

In order to come up with an "answer", one would first have invent a question.

"1 plus 1" is at best an arithmetic expression with a numerical value of 2.

∫ cos(x) dx = sin(x) + C

C is the constant of integration.