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Algebra
The use of letters to substitute unknown numbers to form an equation. Solve the equation to get the unknown number using different methods such as simultaneous equations and more.
227,579 Questions
How many 4 digit numbers can be formed by the digits 1234567890?
Oh, what a happy little question! With the digits 1-9 and 0, you have 10 options for each digit in a 4-digit number. So, you can form 10 x 10 x 10 x 10 = 10,000 different 4-digit numbers. Isn't that just delightful? Just imagine all the beautiful combinations you can create!
What multiplies to 6 and adds to 18?
There are no two numbers that multiply to get 6 but add to get 18. In fact, the solutions are:
- 1x1x1x1x1x1x1x1x1x1x1x1x6 = 6; 1+1+1+1+1+1+1+1+1+1+1+1+6 = 18
- 1x1x1x1x1x1x1x1x1x1x1x1x1x2x3 = 6; 1+1+1+1+1+1+1+1+1+1+1+1+1+2+3 = 18
joes friends are going to climb the climbling wall and have invited Joe to go with them. Joe is afraid of heights an wants to know how high the clibling wall is before he climbs it Joe is 5 1/2 feet tall an at 3:00 p.m his shadow is 2 3/4 feet long at the same time the shadow of the rock wall is 35 feet long how high is the rock wall
Does a right triangle or right kite have right angles?
YES!!! The whole point of the word ' right' is to indicate a right (90 degree) angle.
What is 2 to the third power times 2 to the third power?
2^(3) x 2^(3) =
2^(3 + 3) =
2^(6) = 64
Or
2^(3) = 8
Hence 8 x 8 = 64
There is no last digit of Pi, (π). It is an irrational number which means it goes on forever.
Pi (approx 3.1416) doesn't have a last digit because it is irrational (and coincidentally, transcendental).
That means, basically, the decimal form of pi extends infinitely past the decimal point and so you will never get to "the last digit of pi".
What formulas use Pi in the equation?
C = pi d
C = 2 pi r
A = pi r^(2)
Vol(sphere) = ( 4/3) pi r^(3)
A(Sphere) = 4 pi r^(2)
Vol(Cylinder) = pi r^(2) h
A(Cyl) = 2pi r h + + 2 pi r^(2) =2 pi r ( h + r)
It is a linear equation in two variables, x and y. Any point on the line defined by the equation will satisfy the equation and conversely, any ordered pair that satisfies the equation will represent a point, in the Cartesian plane, will be on the line.
show me how to get the answer
Yes,
All multiples of an even number are themselves even.
4 is an even number, so its multiples are all even.
How do you write 630 with prime numbers and exponents?
First you separate it into prime factors (start looking for small factors, such as 2, 3, 5). Then, you combine the factors with exponents.
The area of a circle with a radius of 10 cm .?
A = pi r^(2)
pi = 3.14
r = 10
Substitute
A = 3.14 X 10^(2)
A = 3.14 X 100 cm^(2)_
A = 314.0 cm^(2)
What is the unit dm3 a measurement of?
'dm^(3)' is a measure of liquid volume.
'dm^(3( ' means decimetres cubed.
It is the same volume as litres.
1 dm^(3) = 1 litre.
It is used in chemistry labs. when completing volumetric analysis.
The sum of two numbers is 25 while their difference is 1 What are the two numbers?
Let the number be 'm' & 'n'
m + n = 25
m - n = 1
Add the two eq'ns.
2m = 26
m = 26/2 = 13
Hence n = 12
