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How do you draw a nonagon?

To draw a regular nonagon, you need a ruler and a protractor. First, choose a length for the sides; for instance, 5 centimeters. This is the length for each of the nine sides of the nonagon. Next, use the ruler to mark two points at the length chosen. Connect the points using the ruler; this is the first side. At one of the points, use the protractor to measure 140 degrees clockwise and, using a pencil, draw a line extending from the measurement. Use the ruler to measure the pencil line and mark the dot at the length chosen for the side. Erase the excess pencil line past the dot. Repeat the pr..

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How is a number sentence used in third grade math?

Number sentences do not necessarily have to be true. Some teachers show number sentences that are not true to help teach children about math. Some number sentences have question marks in the middle as a way to introduce algebra. For example, “If trying to calculate 10 + ? =15, what is the missing number?” Number sentences also use the greater than or equal to sign or the less than or equal to sign. The not equal to sign appears in number sentences as well. These sentences can have two sides to them with an equal sign in the middle. An example is “5 +2= 6 +1” This is part of the reason ..

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How do you solve an equation with a calculator?

The order of operations is parentheses, exponents, multiplication, division, addition and subtraction. It is frequently remembered by the phrase "Please Excuse My Dear Aunt Sally" as a memory trick for PEMDAS. For an equation, first solve all parentheses working from the inside of multiple parentheses towards the outside. Second, solve all exponents from left to right. Third, solve all multiplication and division simultaneously, working from the left to the right. Fourth, solve the addition and subtraction at the same time, working from the left to the right.\nIf an calculator solves an equati..

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What are the factors of 4?

Any non-prime number's factors can be found by first dividing the number by its smallest prime divisor, a number such as 2, 3, 5 and so on. This yields two factors, the smallest prime divisor and another number. If this second number is not prime, the process continues by finding the smallest prime divisor until the entire list of numbers consists of prime numbers. These are the factors of the original number.

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Is "0" a prime number?

The value of zero is less than one, so zero does not meet the first criteria of the definition. Zero can be divided by any number, and the answer is always zero. The smallest prime number is two, and it is the only even prime number. With the exception of the numbers two and five, all prime numbers end in 1, 3, 7 or 9.

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What is a function rule in mathematics?

The term f(x) is often used to represent a function. One example of a function is: f(x) = x + 2. This means that for each value of x, f(x), also know as the y value, is "x + 2". The value of y depends on the value of x. A graph is a function if it passes something called the vertical line test. If a vertical line can be drawn at any point and only pass through the graph once, then the graph is a function.

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Where can you find a rounding calculator?

In addition to a rounding calculator, TheCalculator.com offers more than 750 calculation tools, including a mortgage calculator and calorie counter.\nRounding a number means replacing it with another number that is nearly equal but is shorter or simpler. People round numbers for many reasons, including obtaining a number that is easier to report or communicate than the original precise value. The concept of rounding is very old, as evidenced by the ancient clay tablets with tables of rounded numbers that archaeologists found in Mesopotamia.

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What are some algebra 2 logarithms?

Algebra 2 coursework on logarithms may also involve techniques for graphing them. Proofs taught may include the identity in which log(a) + log(b) = log(a + b), as well as a * log(b) = log(b^a) and log(a) - log(b) = log(a/b). Students of algebra 2 may also learn how to express the log of one base as a log with a different base.

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What are logs and exponents?

For example, two to the power of two has an exponent of two and equals four. In the reverse, the log to the base two of four results in two. The exponent in two to the power of two is written in superscript, while the base in the log of base two of four is written in subscript.

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What is a right Riemann sum?

The Right Riemann sum is a method that calculates an approximation using the right endpoint of a subinterval, according to Wikipedia. It is also known as a right-hand sum. Riemann sums are calculated by taking the sum of a function multiplied by a small amount of the independent variable, according to Math Open Reference.\nA right-hand sum is similar to a left-hand sum, but for the right-hand sum one should use the value of the function at the right endpoint to determine rectangle height, according to Shmoop. In order to find a right-hand sum, one must know the value of the function at the rig..

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