Math

Refine Search

Is there such thing as an online graphing calculator?

A graphing calculator is a calculator that can plot graphs and solve simultaneous equations. Students adn teachers often use graphing calculators in math classes to help visualise the properties of mathematical equations. Some graphing calculators have additional features such as a programming language or an algebraic solving system. Desmos.com is a basic graphing calculator that plots functions in two-dimensional Cartesian and polar geometry. Alternatively, use WolframAlpha.com for complex plotting and other advanced mathematical tasks.

Continue Reading

What jobs use trigonometry?

Trigonometry is a type of mathematics that studies angles and their relationships to each other. The field was first studied in the third century B.C. as a way of applying geometry to astronomy. Early astronomers noted fixed relationships between the sides and angles of right triangles. They also discovered that if they knew the value of one angle in such a triangle, they could determine the other lengths and angles using an algorithm. The calculations came to be known as trigonometric functions. Today, the functions are used in many fields, including electrical and mechanical engineering, aco..

Continue Reading

What are the functions in algebra 2?

Quadratic functions are typically written as f(x) = ax^2 + bx + c, where a and b are coefficients and c is a constant. A quadratic function typically has either a maximum or a minimum point. A minimum point exists if the graph of the quadratic function (parabola) opens upwards, but if it opens downwards, then the parabola has a maximum point.\nIf the graph of a quadratic function crosses the x-axis twice, then it is said to have two x-intercepts, which are normally used to find a solution for the corresponding quadratic equation. Lamar University explains that a function is an equation for whi..

Continue Reading

What is an example of disjoint events?

The probability for two disjoint events happening at the same time is zero. This can be written as "P(C and D) = 0", where C and D are two different events. The probability of either one of them happening is the summation of both the events' probabilities. It can be written as "P(C or D) = P(C) + P(D)." Nonmutually exclusive events have some common results. The probability of either one of them happening can be written as "P(C or D) = P(C) + P(D) - P(C and D)."

Continue Reading

What is a stem-and-leaf plot?

For data values in the hundreds or thousands, the largest digit is put in the stem with the remaining digits are put in the leaves. A stem-and-leaf plot is similar to a histogram but contains the exact value of every data point. Stem-and-leaf plots are therefore useful for determining common statistical metrics such as the mode and median.

Continue Reading

What is the largest prime number?

A prime number is a number that is greater than one and can only be divided by one and itself. The largest prime number is part of a special class of highly rare prime numbers referred to as Mersenne primes. Including 2^(57,885,161) -1, there are only 48 known Mersenne prime numbers to date. Mersenne primes are numbers that are one less than the power of two; Mersenne prime = 2^n -1.

Continue Reading

How do you make a dodecahedron?

Draw the dodecahedronThere are multiple templates available online. However, for a custom size, it is easy to create a template. Draw a pentagram the size of one side of the finished solid. Trace the pentagram in the middle of a piece of cardstock. Draw another pentagram on each of the five sides of the first, creating a group of six. Repeat these steps again so there is a second group of six pentagons. When assembled, there are 12 pentagons in the shape, one on top and one on bottom with 10 others around the middle.Cut the shape from the paperCut the groups of six or the template shape from t..

Continue Reading

How do you measure the diameter of a round object?

Obtain a ruler or other measuring deviceThe first step in measuring the diameter of a circle is to gather a measuring device, such as a ruler, meter stick or yard stick. The measuring device should be larger than the diameter of the circle to obtain precise measurements. Place the measuring device on any point on the edge of the circleLine up the point on the edge of the circle with the first notch on the ruler or measuring device. Extend the measuring device across the circleExtend the measuring device to the opposite end of the circle, making sure that it's straight across from the orig..

Continue Reading

What is the definition of a "non-perfect square"?

If any whole number such as 3, 7, or 13 is squared, the result is a perfect square despite the fact that these numbers themselves are non-perfect squares. If a number's square root is an integer, or whole number, the original number is a perfect square; if a number's square root is not an integer, the original number is a non-perfect square.

Continue Reading

What are perfect square trinomials?

A polynomial is a mathematical expression with multiple terms that usually cannot be simplified or combined anymore than they are. Trinomials have three terms. These terms frequently include one or more variables that are either different themselves or raised to different powers.\nx^2 + 6x + 9 is a trinomial, because it has three terms, none of which can be combined. It is also a perfect square.\nPerfect square trinomials follow the rule that a^2 + 2ab + b^2 = (a + b)^2. Therefore, x^2 + 6x + 9 must equal (x + 3)^2. (x + 3)*(x + 3) can be expanded using a method called FOIL, which stands for f..

Continue Reading
Showing 3391 to 3400 of 3956 (396 Pages)