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While January takes its name from Janus, the Roman god of beginnings and endings, February comes from the word februum (purification) an...
Interpolation, in mathematics, the determination or estimation of the value of f(x), or a function of x, from certain known values of th...
The real natural logarithm function ln(x) is defined only for x>0. So the natural logarithm of zero is undefined. ln(0) is undefined....
Absolute value equations are equations where the variable is within an absolute value operator, like |x-5|=9. If the number is n...
Only three countries – the U.S., Liberia and Myanmar – still (mostly or officially) stick to the imperial system, which uses ...
Write a function to represent the data in the table.Look at the x values. Next look at the y values. ...
A linear sequence is a list of numbers that increases or decreases by the same amount each time....
Percentage Calculator: 35 is what percent of 50? = 70....
The graphs are the same. The graphs are reflected across the x-axis. The graphs are reflected across the -axis....
The degrees of freedom for the chi-square are calculated using the following formula: df = (r-1)(c-1) where r is the numbe...
Go to Insert tab, click Symbol button and choose More Symbols in the drop-down box. 2. The Symbol will display, select (normal te...
Like terms are terms that contain the same variables raised to the same power. We combine like terms to shorten and simplify alg...
There are /b> possible combinations of the first five numbers ranging from 1 to 70. Multiply that by the 25 options for the final ball and you get ...
Interior angles If you are given one interior angle of an isosceles triangle you can find the other two. For example, We are give...
Calculating Weighted Average in Excel – SUM Function While SUMPRODUCT function is the best way to calculate the weighted averag...
# handshakes = n*(n - 1)/2. This is because each of the n people can shake hands with n - 1 people (they would not shake their own hand)...
The Product Rule applies to events which are independent. Only then is the probability of the intersection equal to the product of the probabil...
Percentage Calculator: 65 is what percent of 500? = 13....
Wednesday is "Wōden's day." Wōden, or Odin, was the ruler of the Norse gods' realm and associated with wisdom, magic, victory and death. The ...
To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data value...
Parallelograms are quadrilaterals with two sets of parallel sides. Since squares must be quadrilaterals with two sets of parallel sides, then a...
The plus–minus sign (also, plus or minus sign), ±, is a mathematical symbol with multiple meanings. In mathemati...
Connect-Four is a tic-tac-toe-like two-player game in which players alternately place pieces on a vertical board 7 columns across and 6 ...
Prime Factorization of 900 by Division Method Therefore the prime factorization of 900 is 900=2 × 2 × 3 × 3 × 5 × 5 Or 22 ×...
The formula for combinations is generally n! / (r! (n -- r)!), where n is the total number of possibilities to start and r is the num...
The Pythagorean theoremPythagorean theorem"If in a triangle the square on one of the sides equals the sum of the squares on the remaining...
In the American system each of the denominations above 1,000 millions (the American billion) is 1,000 times the preceding one (on...
NameShort scaleLong scalebillion1,/b> (a thousand millions)1,000 (a million millions...
Blame Earth's orbit around the sun, which takes approximately 365.25 days. It's that . 25 that creates the need for a leap year every four years
We are left out with 1000 and we can make out that it is not divisible by 3. Hence, total numbers between 1 and 1000 divisible by 3 = 3 + 30 + ...
Just as you memorize multiplication tables, it is important to memorize how the directions relate. -When I face north, south is behind me, w...
It is calculated by dividing the standard deviation by the square root of the sample size ( ), and so it gets smaller as the sample s...
Factors are the numbers you multiply together. to get another number: There can be many factors of a number....
"e" is a commonly used base for exponential functions. Any number greater than 0 (except for 1) can be used for an exponential function. "e<...
B.C. stands for "before Christ," meaning before Jesus was born. So 400 B.C. means 400 years before Jesus was born. A.D. comes fro...
My StandardNameNumbersExamplesWhole Numbers{ 0, 1, 2, 3, ...
TI-84: Setting Up a Scatter PlotGo to [2nd] "STAT PLOT". Make sure that only Plot1 is ON. Go to Y1 and [Clear] ...
By examining the line plot, we find the number with the maximum number of crosses or occurrences. This gives the mode of the data set. W...
You may be asked to "determine algebraically" whether a function is even or odd. To do this, you take the function and plu...
The entire electromagnetic spectrum, from the lowest to the highest frequency (longest to shortest wavelength), includes all radio waves (e.g.,...
Percentage Calculator: 21 is what percent of 33.5? = 79....
There are 8 cups in two quarts....
Filters. The definition of geometry is a branch of math that focuses on the measurement and relationship of lines, angles, surfaces, sol...
Convert 6 Cups to Ouncescupsfl oz6.00486.0148.086.02...
The number sin(2θ) is the sine of twice the angle θ. It is almost never equal to 2sin(θ). But there is an important "double-angle" identity sin(2θ...
Units of MeasureVolume = length x width x height.You only need to know one side to figure out the volume of a cube
A tangent line is a straight line that touches a function at only one point. The tangent line represents the instantaneous rate ...
1 Answer. In stoichiometry, molar mass is used to convert between the mass of a substance and how many moles of a substanc...
Symbols for the mean: (an upper case X with a line above it) or (lower case x with a line above it) denote "the mean of the X sco...
Measure of Volumes10 milliliters (ml) =1 centiliter (cl)1 liter =1000 milliliters1 ...
A term is a single mathematical expression. It may be a single number (positive or negative), a single variable ( a letter ), several va...
Answer: The number of 16 oz bottles of water to equal a gallon is 8....
Solving Equations with a Variable on Both Sides. After simplifying, the first step in solving an equation with a variable on both...
The right whale, one of the largest whales on Earth, has testicles that weigh roughly 1,000 pounds EACH....
How to Calculate Average. The average of a set of numbers is simply the sum of the numbers divided by the total number of values in the ...
Polygons - Polygon basics - In Depth. The word polygon is a combination of two Greek words: "poly" means many and "gon" me...
Dr. WilsonShe gets 1 partridge in a pear tree on each of the 12 days.1 x 1212She gets 10 lords a-leaping...
The IRR Formula Broken down, each period's after-tax cash flow at time t is discounted by some rate, r. The sum of all these discounted cash fl...
Measurement is the action of measuring time, weight, height, temperature, length, speed, and more. Standard units, such as seconds, hour...
What are ratio expressions of strength? Ratios are a way to express the strength of a solution or liquid preparation. For example, a 1:1,000...
more The type of number we normally use, such as 1, 15.82, −0.1, 3/4, etc. Positive or negative, large or small, whole numbers or dec...
The main reason why the exponential grows faster than a polynomial is because if f is exponential, then f(n+1) is at least a cons...
A tricycle, often abbreviated to trike, is a human-powered (or gravity-powered) three-wheeled vehicle....
Percent Error Calculation StepsSubtract one value from another. Divide the error by the exact or ideal <...
45° is the half of right angle...
A positive exponent tells us how many times to multiply a base number, and a negative exponent tells us how many times to divide a base ...
To find the median:Arrange the data points from smallest to largest.If the number of data points i...
The next leap day is February 29, 2024. 2020 was also a leap year, so the last leap day was February 29, 2020....
Round to nearest 0.5To round a number down to nearest 0.5, use the FLOOR function, for example =FLOOR(A2, 0.5
The waves of energy are called electromagnetic (EM) because they have oscillating electric and magnetic fields. Scientists classify them...
Convert fraction (ratio) 13 / 15 Answer: 67%...
There are, you see, 3 x 2 x 1 = 6 possible ways of arranging the three digits. Therefore in that set of 720 possibilities, each unique c...
Factors of 72 by Prime Factorization Step 7: The prime factors of 72 are written as 2 × 2 × 2 × 3 × 3,= 23×32 2 3 × 3 2 , where 2 and 3 are the ...
Here are some steps to follow:Understand the problem. Understand all the words used in stating the problem. Understand what you are ask...
The symbol for an atom indicates the element via its usual two-letter symbol, the mass number as a left superscript, the <...
Answer: LCM of 8 and 12 is 24....
In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern u...
The nucleus and the electrons in the inner shell remain unaffected when atoms come close together. The electrons in outermost shell of ...
Liquor Shots per BottleHow Many Shots Are in a Bottle?BottleMillilitersOuncesStandard Bott...
The speed of any periodic wave is the product of its wavelength and frequency. v = λf. The speed of any electromagnetic waves...
Originally Answered: Are there any kind of spiders with 6 legs? There is one kind: the gladiator spider. A spider that has become a veteran of the art...
When writing your own two-column proof, keep these things in mind:Number each step.Start with the given informat...
Remember, the formula to calculate combinations is nCr = n! / r! * (n - r)!, where n represents the number of items, and r represents the numbe...
A factorial is a function that multiplies a number by every number below it. For example 5!= 5*4*3*2*1=120.What is a Factorial?...
What should be changed to make the following sentence true? Spontaneous acquisition is the return of a previously extinguished conditioned resp...
The answer is that one isomer of dichloroethylene has a zero dipole moment....
Find The Critical Numbers Of A Function : Example Question #4. . Explanation: To find the critical numbers, find the values
One litre of water has a mass of almost exactly one kilogram when measured at its maximal density, which occurs at about 4 °C. It follows, the...
There is an easy way to tell whether the graph of a quadratic function opens upward or downward: if the leading coefficient is gr...
3. PI/4 = 1/1 - 1/3 + 1/5 - 1/7 + PI/2 = 2/1 * 2/3 * 4/3 * 4/5 * 6/5 * 6/7 *...
To add or subtract radicals, the indices and what is inside the radical (called the radicand) must be exactly the same. If the indices a...
The number 10 represents the base value in every number system. Representing a number in base 5 somet...
So what does this mean (f g)(x), the composition of the function f with g is defined as follows: (f g)(x) = ...
The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Substitute 8 f...
The legs (or catheti; singular: cathetus) are the sides in a right triangle that form its right angle (90°). The side opposite the righ...
In more mathematical language, two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of th...
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other wo...
Let's start and divide by 3 digit numbers!How many digits are there in the divisor? 3!We ta...
The equation of a basic sine function is f(x)=sinx. In this case b, the frequency, is equal to 1 which means one cycle occurs in ...
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