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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
How do i Solve 7x equals 20 plus 20x?
7x=20+20x
collect terms containg x on one side and then factorize
-13x=20
0r, x=-20/13
What is the fraction for the 45 percent?
The fraction for 45% is 45/100 or 450/1000 or 4500/10000, and finally 45000/100000. Also, reduced to lowest terms, it is 9/25.
1) Y=2x-4
2) x-Y=1
Since you already have Y alone in the first equation, plug the first equation into the second equation. This will give you:
2) x-(2x-4)=1
Now solve for X. To do this, first change the signs of (2x-4) since it is being subtracted. This gives you:
2) x-2x+4=1
Subtract 4 from both sides, giving you:
2) x-2x=-3
Combine like terms, giving you:
2) -x=-3
Of course, from this we can see that x=3.
Now plug x=3 into equation 1) Y=2x-4 which gives you:
1) Y=2(3)-4
Solve for Y. Y=2
X=3 Y=2
How would you solve this 2.14x - 12.18 equals -5.76?
2.14x - 12.18 = -5.76
add 12.18 to both sides:
2.14x = 6.42
divide both sides by 2.14
x= 3
What is the slope for -3 comma 1 and 1 comma -2?
A: (-3,1) B: (1,-2)
slope= b2-a2/b1-a1
Therefore, (-2-1)/(1-(-3)) equals -3/4
What is the polynomial of this factor x2 minus 9x plus 18 in descending order?
x2 - 9x + 18 = (x - 3)(x - 6)
What are the points for y equals -.75x plus 9?
As long as the y-value of the point is 9 more than -3/4 of the x-value, it's
included. There are an infinite number of them, and we're busy right now.
What is the square root of x squared plus 12x -2 equals x plus 4?
It's a second-degree equation in 'x' that screams "trouble". But we laugh in the
face of adversity and, with no thought for our personal safety, we plunge right in
and pursue solution[s].
sqrt( x2 + 12x - 2) = x + 4
Square each side . . . . . . . . . . x2 + 12x - 2 = x2 + 8x + 16
Subtract x2 from each side . . . 12x - 2 = 8x + 16
Add 2 to each side . . . . . . . . . 12x = 8x + 18
Subtract 8x from each side . . . 4x = 18
Divide each side by 4 . . . . . . . . x = 9/2
What is the value of the expression - 5x plus 12 when x equals 5?
-13
Plug 5 in and multiply it by -5 which equals -25
12 - 25 = -13
Who invented logarithms that enabled humans to do long mathematical calculations quickly?
John Napier of Edinburgh
How do you estimate the graph of the function fx2?
It crosses the y axis at zero and it opens up instead of down.
Does being good in mathematics help you in physics chemistry and engineering or is that a myth?
It is no guarantee of success in those disciplines, but it is helpful.
Building a fire is an art. Lighting a log normally means you have to start a fire using tinder, small pieces of wood and work your way up to the larger size. One way to 'cheat' is to use some fire starters.
What is the answer to y equals 10-x?
well if you arent doing graphs and you don't know the values for x or y, then you are done
Will 2y plus 3 equals 4 graph a horizontal equation?
2Y + 3 = 4
2Y = 4 - 3
Y = 2 - 3/2
Y = 4/2 - 3/2
Y = 1/2
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This is a horizontal equation where a line runs from negative infinity to positive infinity at the above.
