Calculus

X^2?

1/3x^3

7x + 10y = 4.5 : 10y = -7x + 4.5 : y = -x.7/10 + 0.45, the gradient of this line is -7/10

Two straight lines are perpendicular if the product of their gradients is -1.

Let the equation for the perpendicular line be y = mx + c

Then m x -7/10 = -1 : m = 10/7

The equation for the perpendicular line is y = x.10/7 + c

If the values of x and y for the point of intersection are provided then these can be substituted in the perpendicular line equation and the value of c obtained.

If appropriate, the equation can then be restructured to a format similar to the original equation.

x = 10

10

True

x=2

first:you find the gcm(greatest common factor)wich is the lowest number that can go evenly into the numerator and the denominator.

next:you devide both the numerator and the denominator by that gcm(greatest common factor)and walla!

3X + 8 = 12

Subtract 8 from both sides:

3X + 8 - 8 = 12 - 8

Reduce:
3X = 4

Divide both sides by 3

3X/3 = 4/3

Reduce:
X = 4/3

Or _
X = 1.33

x = 15 - N.

20*log10x = 5

Dividing both sides by 20: log10x = 5/20 = 0.25

Raising 10 to the powers: x = 100.25 = 1.7783 (approx)

5.3' = 161.5 cm.

You can specify a set either by listing all of its members (not an option for sets that are very large or even infinite), or by specifying some rule for elements to be a part of the set.

5p+18 = 8p

Subtract 5p from both sides:

18 = 3p

Divide both sides by 3:

6 = p or as p = 6

-2

4

When the answer is wrong because 4+3 = 7

-4 / x3

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Divide each side of the equation by 10 .

self worth, highly respected

44.5

Venus does not have rings.