0
Calculus
The branch of mathematics that deals with the study of continuously changing quantities, with the use of limits and the differentiation and integration of functions of one or more variables, is called Calculus. Calculus analyzes aspects of change in processes or systems that can be modeled by functions. The English physicist, Isaac Newton, and the German mathematician, G. W. Leibniz, working independently, developed calculus during the 17th century.
25,068 Questions
What is 5x plus 35 equals -30?
Start by subtracting 35 from both sides to get 5x = -65
Now, divide both sides by 5 to get x = -13
If: 2x+y = 1 then y =1-2x and y^2 = (1-2x)^2 which is 1-4x+4x^2
If: x^2 -xy -y^2 = -11 then x^2 -x(1-2x) -(1-4x+4x^2) = -11
Expanding brackets: x^2 -x +2x^2 -1 +4x -4x^2 = -11
Collecting like terms and adding 11 to both sides: -x^2 +3x +10 = 0
Dividing all terms by -1: x^2 -3x -10 = 0
Completing the square: (x-3/2)^2 -9/4 -10 = 0 => (x-3/2)^2 = 49/4
Square root both sides: x-3/2 = -/+ 7/2
Add 3/2 to both sides: x = 3/2 -/+ 7/2
Therefore: x = 5 or x = -2
Solutions by substitution are: (5, -9) and (-2, 5)
If: y = 5x^2 -2x +1 and y = 6 -3x -x^2
Then: 5x^2 -2x +1 = 6 -3x -x^2
Transposing terms: 6x^2 +x -5 = 0
Factorizing the above: (6x -5)(x +1) = 0 meaning x = 5/6 or x = -1
By substitution points of intersection are at: (5/6, 101/36) and (-1, 8)
What is x when y is 30 if x is 20 when y is 40?
x and y are in a ratio of 1:2 so when y is 30 x is 15
How do i simplify and identify the undefined of x plus 4 3x 2 plus 11x-4?
Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "times", "equals", "squared".
The question does not contain an equation nor an inequality so there is not much that can be done with it.
What is 1 plus 1 half plus 1 third plus 1 quarter plus 1 fifth and so on?
This series is known as the Harmonic Series and it diverges but very, very slowly.
For example, the first 100 terms sum to 5.187...., the first 1000 terms to 7.486...., and the first 1000000 terms to 14.392....
There are many proofs of the divergence of this series and an internet search of Harmonic Series will no doubt find many of them.
How long does it take to count up to 1 thousand?
it take 1000000000000000000000000000000000000000000000 seconds to count to 100 ; D
If 3x-2 equals 11 Find th value of x2 plus x?
3x - 2 = 11 3x = 13 x = 13/3 x2 + x = x( x + 1 ) = (13/3) (16/3) = 208/3 = 69-1/3
How long would it take for an object to hit the ground from 1248 ft tall building?
In a vacuum, just under 9 seconds. In the real world, more than that, but it depends on the shape of the object and the prevailing winds and air currents.
What is x if 3x plus 2 equals 2x - 5?
1. Subtract 2x from each side: x + 2 = -5
2. Subtract 2 from each side: x = -7
The above method is correct, however I find it simplier to write out each step separately rather than subtracting 2x from each side automatically.
3x +2 =2x-5. Subtract 2x from the right and it must be subtracted from the left.
3x-2x+2=-5 Subtract the 2x from the left.
x+2 = -5 Subtract 2 from the left and it must also be subtracted from the right.
x = -5-2 Subtract it.
x =-7
Resolver metodo de despeje 2x-9 equals -10 plus x?
2x - 9 = -10 + x
thus 2x - x = -10 + 9
thus x = -1
yes you can
