Math
Refine Search
What is the formula for midpoint?
- By Forinfos
- 17/08/2025
- 0 comments
As an example, you can use the midpoint formula to determine the midpoint between coordinates (2,4) and (4,8). Using the formula above, add the first two coordinates (2 + 4) and divide the sum by two to find the midpoint (6 divided by 2 equals 3). Use the same formula to find the y coordinate of the midpoint: i.e. eight plus four divided by two equals six.
What is the way to make an icosahedron?
- By Forinfos
- 16/08/2025
- 0 comments
The icosahedron figure is one of five platonic solids. In this figure, five triangles meet at each vertex. The other four platonic solids are:Tetrahedron - in the shape of a triangle.Cube - in the shape of a squareOctahedron - in the shape of a diamondDodecahedron - in the shape of a pentagonTo make a icosahedron, one needs only a few supplies. A sheet of paper, pencil, template, scissors and glue or tape.Step 1: Trace the templatePlace the template on a sheet of plain paper and trace around it. Be sure to mark the fold lines.Step 2: Cut out and fold the figureUse a pair of scissors to careful..
What is the variance of uniform distribution?
- By Forinfos
- 16/08/2025
- 0 comments
The variance can be derived from the moment generating function, or by integrating the quantity (1/(b-a))*(x - mu) dx over the range x = a to b, where mu is the distribution mean. For the uniform distribution, central moments are calculated analytically from the formula ( (a - b)^n + (b - a)^n )/( 2^(n+1)*(n+1) ). Set n = 2 to calculate the variance. The mean, the first central moment, is calculated by setting n = 1.
How do you use a solar panel power calculator?
- By Forinfos
- 16/08/2025
- 0 comments
The solar panel power calculator from Free Clean Solar employs a simple calculation to judge a user's panel requirements based on kilowatt hour usage. The kilowatt hour, abbreviated kWh, is printed on a regularly scheduled electric bill as a measure of how much energy the household uses each cycle.\nIf desired, enter your home's specific total kilowatt hour usage along with your location's solar hours, which is a measure of how much sunlight the region sees daily. Then enter the amount of money by which you hope to reduce your power bill, and click the Calculate button to see th..
How do you find the value of arctan 0?
- By Forinfos
- 16/08/2025
- 0 comments
Know how tan and arctan workThe tangent of an angle in a right triangle is the fraction found by dividing the side opposite the angle by the side adjacent to the angle. For example the tangent of 45 degrees is 1 because the base (adjacent) and height (opposite) of an isosceles right triangle are always equal.\n\nTangent operations are often written as tan(x). The inverse tangent, or arctan, reverses the operation. For example arctan(1) = 45 degrees because tan(45) = 1.Find an angle whose tangent is 0To have a 0 tangent, an angle must create a triangle where the opposite side length is 0 and th..
What is center of dilation in mathematics?
- By Forinfos
- 16/08/2025
- 0 comments
A dilation is a type of transformation of a two-dimensional geometric figure that yields an image, which is similar in form to the initial object but varies in size. The scale factor determines the degree or amount to which the object is increased or decreased. The origin of a coordinate plane with the points x = 0 and y = 0 is the most common center of dilation in geometry.
What is the definition of "sine?"
- By Forinfos
- 15/08/2025
- 0 comments
Sine is a trigonometric function related to the functions cosine and tangent. Cosine is the opposite of sine in that it is equal to the length of the side of a right triangle adjacent to the acute angle divided by the length of the hypotenuse. The related tangent function is defined as the sine divided by the cosine.
What is a quadrilateral that is not a parallelogram?
- By Forinfos
- 15/08/2025
- 0 comments
In a quadrilateral, some angles can be concave instead of convex. The inside angles add up to 360 degrees, no matter how it is shaped. Some quadrilaterals have special properties, like squares. The sides of a square are all equal, and each angle inside is a right angle.A parallelogram is a shape with two sets of sides that run parallel. Therefore, many unnamed shapes are also quadrilaterals without being parallelograms. That is, some shapes do not have special properties, like equal sides, so they do not have specific names; for instance, a shape that has four unequal sides is a quadrilateral ..
What is 7.5 as a fraction?
- By Forinfos
- 15/08/2025
- 0 comments
The answer 75/10 can be simplified further to give 15/2. This is done by dividing both the top and the bottom by five. Dividing 75 by five gives 15, and dividing 10 by five gives two. The number five in this example is called the greatest common factor because it is the largest number that divides evenly into both numbers.\nA good way to check the answer is to make sure the reverse is true. In this example 15 divided by 2 equals 7.5.
What are congruent circles?
- By Forinfos
- 15/08/2025
- 0 comments
Any circles that have the same radii can be overlaid perfectly on one another.\nMore complex objects have to meet more parameters to be congruent. Polygons must have the same number of sides arranged in the same shape with the same dimensions and must be oriented the same way. Even if two rectangle have the same dimensions and shape, if one is oriented horizontally and the other vertically, they are not congruent.