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What is the multiplicative inverse of a negative number?

The multiplicative inverse is also known as the reciprocal of a given number. All real numbers have reciprocals with the exception of zero, since anything multiplied by zero is also zero. The product of a negative number multiplied by its reciprocal (which is also a negative number) is also 1.The reciprocal of a number expresses the inverse property of multiplication. For the variable a it can be written as:a x 1⁄a = 1⁄a x a = 1, a ≠0-a x -1⁄a = -1⁄a x -a = 1, a ≠0Division is defined in terms of multiplication. In fact, division is equivalent to multiplication by the reciprocal or ..

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How do you make a schedule?

Create your plotUsing a program such as Excel or pen-and-paper, create a grid that has the number of boxes and the amount of room you need. Keep in mind that you need to put categories along the row at the top and/or along the leftmost column.\n\nAlternatively, you can buy a pre-made schedule grid such as a calendar or daily planner.Label your categoriesWhether your schedule is by minute, hour, day or any other measure, label your categories sequentially from left to right or from top to bottom. Some schedules have days of the week listed from left to right and have hours increasing from top t..

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What does "vertices" mean in math?

A vertex can also be defined as a corner of a three-dimensional figure. Cubes, cuboids and cones are all three-dimensional figures. A cube and a cuboid have eight vertices. The corners of a table meet in a vertex. A page of a book has four vertices. An angle has a vertex too. The vertex of an angle is the point where the two arms of the angle meet.

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What is the Roman numeral XLVIII?

When using Roman numerals, placing a lower numeral prior to a larger one indicates that a person should subtract the smaller amount from the larger. Therefore, to create the number 40, Roman numerals place "X" before "L." By contrast, when smaller numerals come after larger ones, the reader should add their values to the preceding value. Thus, the "V" adds 5 to 40, and the "III" at the end of the numeral adds another three units to the preceding value, yielding an ultimate value of 48.

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What are the different types of parallelograms?

Not all quadrilaterals meet the criteria for parallelograms. The shape of a kite and some types of trapezoids are not parallelograms. Opposite sides of a parallelogram must be equal in size; the figure?s opposite angles are equal, and its diagonals cut each other in half. Every parallelogram has two pairs of parallel sides. A square is a unique type of parallelogram; its four sides are equal in length, and each angle is 90 degrees.

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How do you find the volume of prisms and cylinders?

Determine the area of the baseBoth bases of a cylinder and a prism have the same area. For the cylinder, use the circle area formula; multiply pi by the square of the radius. For prisms, use the appropriate formula for to determine the area of the base.Multiply the base by the heightIf the base is expressed in different units than the height, convert the measurements to the same units. For both prisms and cylinders, the volume is equal to the area of the base multiplied by the height.Use the correct unitsWhen calculating volume, express the answer in units of volume, which are often cubic line..

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Why is the triangle the strongest shape?

Squares are quite strong, but they collapse if sufficient weight is applied to any of their sides. These sides can be strengthened to resist collapsing by reinforcing them with additional braces. However, these braces will effectively create multiple triangles. Triangles are often stacked together, facing opposite directions, in order to span larger distances. Examples of this can be seen in bridges or large buildings like the Eiffel Tower.

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What is an inequality in math?

The first inequality, "not equal to," is symbolized by an equal sign with a diagonal cross through it (≠). It is the opposite of an equality, and shows only that two values are not identical. The "greater than" inequalities are symbolized by the right angle bracket (>). The "less than" inequalities use the left angle bracket (

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How do you use a calculator to find answers to math fraction questions?

A fraction is converted to a decimal by dividing the numerator by the denominator on the calculator. For example, 5/8 is converted by first entering 5, then the Divide key, then the 8 key and finally the Equal key. The calculator then gives the solution of 0.625. Once both fractions are converted to decimals, the problem can be solved on a standard calculator. For example, the problem "5/8 + 1/5" is converted to "0.625 + 0.2," to which the solution is 0.825.\nMath problems that initially use fractions in the equation usually require the solution to be in fractional form. Therefore, the solutio..

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How many sides does a trapezoid have?

Formerly, the word trapezoid in British English meant a quadrilateral with no parallel sides, or what is often called an irregular quadrilateral.\nAgreement as to the classification of trapezoids is not universal. Some regard only quadrilaterals with one single pair of parallel sides as trapezoids. Others regard the parallelogram, with two pairs of parallel sides, as a special type of trapezoid. This definition includes rectangles, rhombuses and squares as trapezoids as well because they are all special types of parallelogram.

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