What is the deifition for irrational number?
An irrational number is a number that is not rational. A rational number is a number that can be expressed as the quotient of two integers, the divisor not being zero.
Y equals ax2 - 2x - 3 The line of symmetry is x equals 1 Does an equal 1 or -1 or 2?
For the equation ax2-2x-3, the quadratic coefficients are:
a=a,
b=-2
c=-3.
The equation of the line of symmetry is:
x= -b/2a
As we know that the line of symmetry is x=1,
we get:
1 = 2/2a, so
2a = 2
and a = 1.
We get a bowl-shaped parabola, whose lowest point is (1,-4).
X plus y equals 5 and 2x-y equals 4?
If you are trying to find x and y, the answers are x=3 and y=2.
You can use elimination to find the answer. First you cross out the y and -y in the equations and then add the x's and numbers, which will give you 3x=9. You can then solve for x and you will get x=3. To find y, you put 3 into either of the equations for x and solve for y.
Does a constant always have an inverse?
No, zero does not have an inverse.
The inverse of x is 1/x. x<>0
What is the integral of 1 divided by the cosine squared of x with respect to x?
∫ 1/cos2(x) dx = tan(x) + C
C is the constant of integration.
What is the integral of the hyperbolic tangent of x with respect to x?
∫ tahh(x) dx = ln(cosh(x)) + C
C is the constant of integration.
What is the integral of two functions of x added together with respect to x?
∫ f(x) +g(x) dx = ∫ f(x) dx + ∫ g(x) dx.
What is the point of intrescetion of x-y equals 7and 3x plus y equals 9 using substitution?
x-y = 7 so x = 7+y
3x+y = 9 so 3(7+y)+y = 9
21+3y+y = 9
4y = 9-21
4y = -12
y = -3
Substitute the value of y into the original equations to find the value of x:
Therefore: x= 4 and y = -3
You have to use the periodic table of elements.
P E M D A S
P - ( ) _Parenthesis
E - y2 _Exponents
M - X _Multiplication
D - / _Division
A - + _Addition
S - [-] _Subtraction
•6+2x4-2•
Multiplication comes fist so... 2 x 4 = 8
Addition comes next so... 6 + 8 = 14
Subtraction is last so... 14 - s = 12
Who plays the boy who can stop peoples powers in x men 3?
Jimmy, or 'Leech' is played by Cameron Bright.
How do you find radians using the conversion factor?
One way to remember it is: a full circle is 2pi radians, or 360°, so 2pi radians = 360°, and then you multiply degrees by (2pi/360 radians per degree) = pi/180 radians per degree.
How do you answer addmaths project 2010?
if a kilogram of cake has a 3800cm3,and the height of the cake is to be 7.0cm,calculate the diameter of the baking tray to be used to fit the 5kg cake ordered by your school.
How do I factor 45b2 plus 150bd plus 125d2?
45bb+150bd+125dd
Steps:
1. Factor out common terms
45bb+150bd+125dd
5(9bb+30bd+25dd)
2. Multiply coefficients of first and third terms:
9*25=225
3. Factor product of first and third terms, choose factors whose sum is the second term(30):
225=3*3*5*5
=3*75
=5*45
=15*15
4. Rewrite polynomial:
5(9bb+30bd+25dd)
5(9bb+15bd+15bd+25dd)
5. Factor sets of terms (first and second, third and fourth):
5(9bb+15bd+15bd+25dd)
5(3b(3b+5d)+5d(3b+5d)
6. Combine like terms:
5(3b+5d)(3b+5d)
7. Combine like terms:
5(3b+5d)**2
What is the answer to 2x-3 equals -7?
2X - 3 = - 7
add 3 to each side
2X - 3 + 3 = - 7 + 3
2X = - 4
divide each sides integers by 2
(2/2)X = - 4/2
X = - 2
=========check in original equation
2(- 2) - 3 = - 7
- 4 - 3 = - 7
- 4 (+) - 3 = - 7
- 7 = - 7
=======checks
Is calculus hard if you are excellent in basic algebra?
Not really. Of course, you'll have to learn some new concepts - just as when you learned algebra.
Cubic graph oh - x plus 3 2-x?
There is insufficient information for us to even begin to understand this question. Please edit the question to include more context or relevant information.
What are the values of the variables when 6x squared plus 2x plus k equals 0 has repeated roots?
Equation: 6x^2 +2x +k = 0
Using the discriminant formula: k = 1/6
Using the quadratic equation formula: x = -1/6
Check: 6(-1/6)^2 +2(-1/6) +1/6 = 0