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Did Leonardo Fibonacci have a wife?

Mathematician Leonardo Fibonacci, known for the famous Fibonacci number sequence, was born in the late 1100s in Pisa, Italy, and he died in 1240 in the same city. While his mathematical work is relatively well documented, the details of his personal life are very sparse. Because there is no evidence of Fibonacci marrying or having children, it is assumed that he never took a wife or built a family during his lifetime.

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How do I calculate equivalent weight?

Find the atomic weights for each element in the moleculeLocate this number under the atomic symbol on the periodic table. For example, carbon, with the atomic symbol C, has an atomic weight of 12.011 grams per mole.Calculate the molecular weight of the substance Multiply the atomic weight by the element's subscript in the molecular formula and add. In hydrates, multiply the weight of the water molecule by the number located between the dot and the H2O and add to the total.Calculate equivalent weightDivide the molecular weight by the number of hydrogen protons it donates as acid or the num..

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What are the percentages of different eye colors?

Unlike many other traits, a simple gene does not determine a person’s eye color. Accordingly, the pattern in which eye color is inherited is complex. Brown eye color is generally dominant over green and blue eye color, and green eye color is dominant over blue eye color. However, because many genes are involved in the process, blue-eyed parents can produce brown-eyed children.\nContrary to popular perception, human eye color is quite complex, and people have a variety of different eye colors. Rather than only occurring in blue, green and brown shades, many intermediate colors are recognized...

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How many angles does a quadrilateral have?

A quadrilateral can be named based off of the lengths of the sides and what type of angles are formed in the interior. A square is a quadrilateral with four equal sides and all interior angles equaling 90 degrees each. A rectangle is a quadrilateral that has interior angles that each equal 90 degrees, but all sides are not the same length. A rhombus is a quadrilateral that has interior angles that are equal, but they are not 90 degrees. The sides are also all the same length.

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What is a rational exponent?

Fractional exponents are particularly useful when simultaneously raising a number to a power and taking a root. For example, raising 51/3 means raising 5 to the second power and taking the cube root of the result. Since raising to a power and taking a root are reciprocal operations, the order in which the operations are performed normally does not matter.

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What is a broken line graph?

Broken line graphs are one way to show information. Users of these graphs often choose this method of representing changes in data over time, such as changes in stock market prices throughout a day or changes in daily temperatures. The lines allow users to interpolate unknown data values between two dots representing known values.\nIn such graphs, convention dictates one independent variable horizontally on the x-axis and the dependant variable vertically on the y-axis. Broken line graphs are also useful in presenting data collected over time when a third variable exists. An example includes a..

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What are the prime factors of 84?

Prime factors refer to the factors of a number that are also prime numbers. Prime numbers are the numbers that are greater than one that only have factors of themselves and 1. Dividing 84 by the smallest prime factor yields 42, which yields 21 when divided by 2 again. Finally, 21 can be divided the its smallest prime factor, 3, to yield 7, which is also a prime number.

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What is a frequency table with intervals?

The table usually features three separate columns. One column is for intervals. The amount of intervals is defined by the range in data values. Intervals are equal in size and do not overlap. The other column is for tallied results; this is where the frequency of data values is tallied. The last column is usually used to find the frequency results.

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What is a stem and leaves graph?

In a stem and leaves graph, the stem values are listed vertically from top to bottom, while the coordinating leaf values are listed horizontally from left to right. For example, the number 25 is broken down as follows: the stem value is 2 and the leaf value is 5. Given the list of numbers {23,25,26,29}, all have the same stem value of 2, but each has its own leaf value of 3, 5, 6 and 9, respectively. Stem and leaves graphs are useful to represent large sets of data in a clean and concise manner.

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How many vertices does a circle have?

However, circles do have an edge. An edge is defined as the line where the circle ends; that is, it forms the boundary of the shape. In the case of a circle, the length of the edge is the circumference.For example, squares have vertices, as they have four sides or edges, that come together to form four points.

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