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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

What is 8 over 20 in simplest form?

Well, isn't that just a happy little fraction we have here! To simplify 8 over 20, we can divide the top and bottom by 4 since they both have a common factor. So, 8 divided by 4 is 2, and 20 divided by 4 is 5. Therefore, 8 over 20 simplifies to 2 over 5. Just like that, we've created a beautiful, simplified fraction!

How many triangles can you fit in a 20 sided polygon?

An infinite number.

Just when you think you are done, pick any triangle, draw a line from any of its vertices to the opposite side and you have spilt that triangle in two. As a result the number of triangles is increased by one. You think you are done? Pick any triangle, ...

What is the distributive property of 3x13?

Well, darling, the distributive property states that when you have a number outside the parentheses being multiplied by the sum inside the parentheses, you can distribute that number to each term inside. So, in this case, 3 times 13 is simply 39. Easy peasy lemon squeezy.

What is the square root of 0.36?

There are basically two ways to work out a square root. Either your goal is to find an EXACT, mathematical result, or your goal is to find an ESTIMATED result.

To get an ESTIMATED result, you need to key it into the calculator and round the answer to the specified number of digits for your assignment. Anything else involves using "power series"... something in University level Mathematics.

To get an EXACT result, you need to simplify the expression by square root operators:

sqrt(0.36) = sqrt( 36 / 100 )

Keep simplifying until you have nothing by prime factors in there:

sqrt( 2 x 3 x 2 x 3 / 2 x 5 x 2 x 5 )

Next we can cancel out all the 2s from that fraction:

sqrt( 3 x 3 / 5 x 5 )

Next, we can break the square root:

sqrt( 3 x 3 ) / sqrt( 5 x 5 )

In this case the answer is 3/5.

Here is a good video explaining more about simplifying these:http://www.youtube.com/watch?v=Thxzb35HQlw&NR=1

What does the word of mean in math EXAMPLE...0.94 of 10?

In math, the word "of" typically indicates multiplication. So, when you see "0.94 of 10," you would multiply 0.94 by 10 to find the result. In this case, 0.94 multiplied by 10 equals 9.4. So, 0.94 of 10 is equal to 9.4.

An expression that contains at least one variable is called a?

An expression that contains at least one variable is called an algebraic expression. Algebraic expressions consist of variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. These expressions can be simplified or evaluated by substituting specific values for the variables. Algebraic expressions are fundamental in algebra and are used to represent mathematical relationships and solve equations.

What are two names for a triangle?

Two names for a triangle are "scalene triangle" and "isosceles triangle." A scalene triangle is a triangle with three unequal sides, while an isosceles triangle is a triangle with at least two equal sides. These names are based on the measurements of the sides of the triangle and help classify different types of triangles based on their properties.

How do you write twice the difference of p and q?

Well, darling, to write twice the difference of p and q, you simply calculate 2 times (p - q). It's as easy as baking a pie, just double the result of subtracting q from p. So, go ahead and show those numbers who's boss!

What is the circumference of a circle whose radius is 20?

The circumference of a circle is calculated using the formula C = 2πr, where C is the circumference, π is a constant approximately equal to 3.14159, and r is the radius of the circle. Given a radius of 20, the circumference would be C = 2 * 3.14159 * 20 = 125.6636 units.

What is a runners average speed if he runs 100 meters in 15 seconds?

To calculate the runner's average speed, you would use the formula: speed = distance ÷ time. In this case, the distance is 100 meters and the time is 15 seconds. Therefore, the average speed of the runner would be 100 meters ÷ 15 seconds = 6.67 meters per second.

What is the answer of 5 cubed?

Well, darling, 5 cubed is 125. That means you take 5 and multiply it by itself three times. It's like saying "5 times 5 times 5" and the result is 125. Math can be sassy too, you know!

How many four digit numbers are there?

If you count 0000 to 9999 you have 10,000. For whole numbers you have 9999.

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Not sure about "whole" numbers. There are 10,000 in all, of which 9000 (from 1000 to 9999) do not have leading 0s.

How do i slove -7m-38-3(7m 8)?

You cannot.!!!!

Because it is an Algebraic Expression NOT an Algebraic Equation; there is NO 'EQUALS (=)' sign.

What is the meaning for triangular pyramid?

if you can visualize the pyrimads of Egypt do so. these pyrimads are square pyrimads. it means they have a square base. a triangular pyrimad has a triangle base with the three corners of the triangle rising up and meeting at one point.

The areaa of a square rug is 64 square feet what is the length of one side?

To find the length of one side of the square rug, you would take the square root of the area. In this case, the square root of 64 square feet is 8 feet. Therefore, each side of the square rug is 8 feet long.

How do you factor 3x2 9x3?

To factor the expression 3x^2 - 9x^3, we first need to find the greatest common factor (GCF) of the two terms. The GCF of 3x^2 and 9x^3 is 3x^2. We can factor out 3x^2 from both terms to get 3x^2(1 - 3x). Therefore, the factored form of 3x^2 - 9x^3 is 3x^2(1 - 3x).

What is the area of a perimeter with 6 inch sides?

That's oddly worded. You can't find the area of a perimeter. Either way, we need to know how many sides there are. A square with 6-inch sideshas a perimeter of 24 inches and an area of 36 square inches.

What is the correct simplification of the expression b5 x b4?

The correct simplification of the expression b^5 x b^4 is b^(5+4) which equals b^9. This is because when multiplying two terms with the same base, you add the exponents. In this case, b^5 x b^4 simplifies to b^(5+4) which is equal to b^9.

How many 4 digit combinations can you get from numbers 1226?

To calculate the number of 4-digit combinations you can get from the numbers 1, 2, 2, and 6, we need to consider that the number 2 is repeated. Therefore, the total number of combinations is calculated using the formula for permutations of a multiset, which is 4! / (2!1!1!) = 12. So, there are 12 unique 4-digit combinations that can be formed from the numbers 1, 2, 2, and 6.

What do you call a 31 digit number?

1 followed by 30 zeroes would be a nonillion in US usage and a quintillion in Continental European and traditional British usage.

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Traditional British usage if by that you mean something that was abandoned around 50 year ago!

What website do you get the answers for houghton mifflin math book 5th grade?

These are websites that help:www.algebrahelp.com and www.webath.com.Plus, the online calculator,www.metacalc.com.(By the way you do know this is kind of cheating.)These websites give you descriptions about the answer.Figure out the rest by yourself.

What is 6 x pi?

The answer depends upon how many decimal places you will assign to pi. Assuming 3.14159 is good enough for your use, the answer would be 18.84954. If your calculations are more critical, you may want to use calculate your answer by assigning more decimal places to pi; pi calculated to 50 decimal places is 3.14159265358979323846264338327950288419716939937510. My calculator will only accept 15 decimal places; in that case pi is 3.141592653589793, multiply that by 6, and the answer is now 18.849555921538758.

What is the speed of a jogger who jogs 6 kilometers in 45 minutes. you want answer in meters per second?

Well, honey, if a jogger covers 6 kilometers in 45 minutes, you just divide 6 km by 45 min to get 0.133 km/min. And since there are 1,000 meters in a kilometer and 60 seconds in a minute, you can convert that to 2.22 meters/second. So, that jogger is strutting their stuff at a speed of 2.22 meters per second.