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How many millions are in one billion?
- By Forinfos
- 17/02/2025
- 0 comments
Ten ones make 10, 10 10s make 100 and 10 100s make 1,000. One million contains 1,000 1,000s. One trillion is 1,000 billions or one million millions. It is written as a one followed by 12 zeros or 10^12. In Great Britain, however, one billion is written with 12 zeros and one trillion with 18 zeros.
What is a dichotomous variable?
- By Forinfos
- 17/02/2025
- 0 comments
Dichotomous variables are part of a larger type of variable called a categorical variable. Categorical variables are not measured by numbers, but they can instead be categorized. Dichotomous variables are any categorical variable that has two distinct outcomes. Survey questions that yield yes or no answers are also examples of dichotomous variables. When formulating hypotheses to test a dichotomous variable, it is essential to test the variables as mutually exclusive. This means that one outcome excludes the possibility of the other outcome.
How can you calculate the mass of a known number of atoms of an element?
- By Forinfos
- 17/02/2025
- 0 comments
Step 1: Calculate the number of moles from the number of atoms. \n\nDivide the number of atoms by 6.02 x 1023, the number of atoms in one mole of the element — also known as Avogadro's number.\n\nStep 2: Determine the molar mass of the element. \nThe molar mass of an element is the mass in g of one mole of the element. Determine the molar mass by placing the units g/mol after the atomic weight of the element. (Atomic weight can be obtained from the periodic chart.) \n\nStep 3: Multiply the number of moles of the element by the molar mass.
How do you draw a parallelogram?
- By Forinfos
- 16/02/2025
- 0 comments
A parallelogram can be drawn in countless different ways. As long as it has four vertices (which are the angles where the lines meet), four lines, two pairs of parallel lines of equal length and four angles whose sum is 360 degrees, the shape is considered to be a parallelogram. Squares, rectangles and rhombuses are also considered to be parallelograms according to this definition. It is important to note that, because the opposite sides are parallel and equal in length, the opposite angles also are equal. Rulers and protractors help greatly when drawing parallelograms.\nThe angles of the diff..
Where can you find answers for algebra homework online?
- By Forinfos
- 16/02/2025
- 0 comments
Services such as Wyzant.com and Tutor.com offer a live person on the other side of a computer to answer questions on specific topics. Wyzant.com offers an answers page on which users can post a question, with tutors answering them for free. Generally on either site, however, speaking with someone requires payment.\nKhanAcademy.org provides video lessons on specific topics in algebra including linear equations, quadratics and functions.
Is zero even or odd?
- By Forinfos
- 16/02/2025
- 0 comments
There is an easy rule of thumb to help determine whether a number is even. Even numbers end with a digit of zero, two, four, six or eight. Conversely, an odd number cannot be divided evenly by two. Odd numbers end with a digit of one, three, five, seven or nine. This makes it simple to determine whether a number is even or odd regardless of the number's size.
What are the dimensions of a 55-gallon barrel?
- By Forinfos
- 16/02/2025
- 0 comments
The dimensions of 55-gallon barrels derive largely from standards set by the U.S. military during the Second World War. These dimensions allowed four drums to fit tightly and easily onto a typical wooden pallet. Through the use of forklifts, this greatly increased the ease by which drums could be transferred between shipping containers or vehicles.
What is chi-square?
- By Forinfos
- 16/02/2025
- 0 comments
Chi-square is calculated by subtracting each expected result from each observed result, squaring the difference and dividing each squared difference by its corresponding expected result. The numbers at the end of this process are all summed to obtain the chi-square statistic, which is then compared to critical values on a chi-square table. A significant chi-square means that the observed results were not obtained due to chance variation in the data.
What are some ways of finding answers to number patters?
- By Forinfos
- 16/02/2025
- 0 comments
If the first term in a series or pattern is x less than the second, and the second is x less then the third; this continues, and the common difference is x. A common ratio is the number multiplied by one term that yields the next. For example, 3 is the common difference for the series "1, 4, 7, 10, 13, ..." and is the common ratio for the series "2, 6, 18, 54, ..." These methods can be extended or combined to find higher level patterns.\nTo find a second difference, create a new sequence from the differences between successive terms in a series. For the series "1, 2, 4, 7, 11, ..." the first d..
How do you turn a fraction into a mixed number?
- By Forinfos
- 16/02/2025
- 0 comments
Determine the number of times the denominator goes into the numeratorIf the fraction is 17/5, then the whole number of the new mixed number is three since five goes into 17 three times.Determine the remainderIf the fraction is 17/5 and five goes into 17 three times, then the remainder is two since five times three is 15.Write the mixed numberWrite 17/5 as the mixed number 3 2/5 since five goes into 17 three times and leaves two unused whole numbers remaining.