# Math **URL:** https://howtodiscuss.com/c/math/10.md?page=2 [Latest](https://howtodiscuss.com/latest.md) · [Categories](https://howtodiscuss.com/categories.md) **Page:** 3 --- ## [What Is 30-60-90 Degree Triangle](https://howtodiscuss.com/t/what-is-30-60-90-degree-triangle/96)
**Author:** [@Christine\_Woods](https://howtodiscuss.com/u/Christine_Woods)\ **Replies:** 0\ **Last updated:** [May 4, 2020, 7:18am UTC](https://howtodiscuss.com/t/what-is-30-60-90-degree-triangle/96 "2020-05-04T07:18:18Z")
The 30-60-90 degree triangle is in the shape of half an equilateral triangle, cut straight down the middle along its altitude. It has angles of 30°, 60°, and 90°. In any 30-60-90 triangle, you see the following: The shor… --- ## [How To Identifying the Seven Quadrilaterals](https://howtodiscuss.com/t/how-to-identifying-the-seven-quadrilaterals/102)
**Author:** [@Debbie-Sutton](https://howtodiscuss.com/u/Debbie-Sutton)\ **Replies:** 0\ **Last updated:** [May 4, 2020, 8:02am UTC](https://howtodiscuss.com/t/how-to-identifying-the-seven-quadrilaterals/102 "2020-05-04T08:02:30Z")
A quadrilateral is a polygon with four sides. There are seven quadrilaterals, some that are surely familiar to you, and some that may not be so familiar. Check out the following definitions and the quadrilateral family t… --- ## [How to Reduce a Fraction to Its Lowest Terms](https://howtodiscuss.com/t/how-to-reduce-a-fraction-to-its-lowest-terms/107)
**Author:** [@Debbie-Sutton](https://howtodiscuss.com/u/Debbie-Sutton)\ **Replies:** 0\ **Last updated:** [May 4, 2020, 8:30am UTC](https://howtodiscuss.com/t/how-to-reduce-a-fraction-to-its-lowest-terms/107 "2020-05-04T08:30:23Z")
Even if fractions look different, they can actually represent the same amount; in other words, one of the fractions will have reduced terms compared to the other. You may need to reduce the terms of fractions to work wit… --- ## [How to Add Fractions with Different Denominators](https://howtodiscuss.com/t/how-to-add-fractions-with-different-denominators/119)
**Author:** [@Debbie-Sutton](https://howtodiscuss.com/u/Debbie-Sutton)\ **Replies:** 0\ **Last updated:** [May 4, 2020, 12:06pm UTC](https://howtodiscuss.com/t/how-to-add-fractions-with-different-denominators/119 "2020-05-04T12:06:22Z")
When the fractions that you want to add have different denominators, there are a few different ways you can do it. Here, you’ll learn the easy way, then a quick trick that works in a few special cases, and finally, the t… --- ## [How to Interpret a Correlation Coefficient](https://howtodiscuss.com/t/how-to-interpret-a-correlation-coefficient/137)
**Author:** [@Allan](https://howtodiscuss.com/u/Allan)\ **Replies:** 0\ **Last updated:** [May 5, 2020, 8:32am UTC](https://howtodiscuss.com/t/how-to-interpret-a-correlation-coefficient/137 "2020-05-05T08:32:20Z")
In statistics, the correlation coefficient r measures the strength and direction of a linear relationship between two variables on a scatterplot. The value of r is always between +1 and –1. To interpret its value, se… --- ## [How p-Value Tells You about Statistical Data?](https://howtodiscuss.com/t/how-p-value-tells-you-about-statistical-data/184)
**Author:** [@GenesisSutton](https://howtodiscuss.com/u/GenesisSutton)\ **Replies:** 0\ **Last updated:** [May 6, 2020, 9:39am UTC](https://howtodiscuss.com/t/how-p-value-tells-you-about-statistical-data/184 "2020-05-06T09:39:50Z")
When you perform a hypothesis test in statistics, a p -value helps you determine the significance of your results. Hypothesis tests are used to test the validity of a claim that is made about a population. This claim th… --- ## [How to Calculate a Confidence Interval](https://howtodiscuss.com/t/how-to-calculate-a-confidence-interval/214)
**Author:** [@IrmaScott](https://howtodiscuss.com/u/IrmaScott)\ **Replies:** 0\ **Last updated:** [May 7, 2020, 8:05am UTC](https://howtodiscuss.com/t/how-to-calculate-a-confidence-interval/214 "2020-05-07T08:05:11Z")
If you know the standard deviation for a population, then you can calculate a confidence interval (CI) for the mean, or average, of that population. When a statistical characteristic that’s being measured (such as income… --- ## [How to Identify Skew right](https://howtodiscuss.com/t/how-to-identify-skew-right/219)
**Author:** [@Jackie\_Reid](https://howtodiscuss.com/u/Jackie_Reid)\ **Replies:** 0\ **Last updated:** [May 7, 2020, 8:32am UTC](https://howtodiscuss.com/t/how-to-identify-skew-right/219 "2020-05-07T08:32:26Z")
Symmetry in a Statistical Histogram Sometimes the mean versus median debate can get quite interesting. Especially when you look at the skewness and symmetry of your statistical data in a histogram. For example, suppose… --- ## [How to Subtract Fractions](https://howtodiscuss.com/t/how-to-subtract-fractions/226)
**Author:** [@JohnniStewart](https://howtodiscuss.com/u/JohnniStewart)\ **Replies:** 0\ **Last updated:** [May 7, 2020, 9:32am UTC](https://howtodiscuss.com/t/how-to-subtract-fractions/226 "2020-05-07T09:32:51Z")
When you want to subtract fractions with different denominators, you have a choice of methods: the easy way, the quick trick, and the traditional way. The easy way always works, and you should use this method for most o… --- ## [How to Factor a Polynomial Expression](https://howtodiscuss.com/t/how-to-factor-a-polynomial-expression/236)
**Author:** [@Marsha](https://howtodiscuss.com/u/Marsha)\ **Replies:** 0\ **Last updated:** [May 7, 2020, 11:17am UTC](https://howtodiscuss.com/t/how-to-factor-a-polynomial-expression/236 "2020-05-07T11:17:35Z")
In mathematics, factorization or factoring is the breaking apart of a polynomial into a product of other smaller polynomials. If you choose, you could then multiply these factors together, and you should get the orig… --- ## [Properties of Parallelograms - What Are The Properties Of Parallelograms](https://howtodiscuss.com/t/properties-of-parallelograms-what-are-the-properties-of-parallelograms/239)
**Author:** [@Marsha](https://howtodiscuss.com/u/Marsha)\ **Replies:** 0\ **Last updated:** [May 7, 2020, 11:40am UTC](https://howtodiscuss.com/t/properties-of-parallelograms-what-are-the-properties-of-parallelograms/239 "2020-05-07T11:40:58Z")
The properties of the parallelogram are simply those things that are true about it. These properties concern its sides, angles, and diagonals. The parallelogram has the following properties: Opposite sides are paralle… [Previous page](https://howtodiscuss.com/c/math/10.md?page=1)