# Mathematics Questions and Answers (Q&A) #### Soffe

After using p^2+2pq+q^2=1 to get the previous answer, sub the 0.9 in to p+q=1 to get 0.1. #### Soffe

As 64% had unattached, p = 0.64 so q= 0.36. The frequency of the recessive allele consists of the recessive homozygous and the heterozygous group. So to find out the total, sub those values into the 2pq+q^2 to get 0.6. #### jamessteve

This is the right answer theone above is wrong
-26x-18+3y #### Coulter

This is not incorrect, but the answer could be challenged. Biography is the history of a man as history is the history of a place, but history can also be the history of anything, including that man. Also, it could be said that a biography is generally ABOUT a man the same way geography is ABOUT a nation (or any place, in fact). C and D are clearly incorrect, however. #### Wyatt Williams

The correct answer to this question is C, Pi x r2 x h. Pi, in this question, corresponds with the number 3.142. R stands for radius, which would be the radius of the cylinder. This radius is from the end of the cylinder. Lastly, h stands for height, which is the height of the cylinder.

To properly calculate the volume, the height and radius must be the same units of measurement. If they are not, they need to be converted to match. The volume that is found from using the formula Pi x r2 x h is in the measurement of cubic units. #### carolinechristineeee

The pink figure represents the proper reflection between the two options. The line of reflection can be defined by the two points that it passes through, or by an equation. This line acts like a mirror, with shapes on both sides having the same shape and size, but the figures face in opposite directions, as they do in the pink figure, making it the correct answer.

The incorrect green figure has objects with the same shape and size on both sides of the line of reflection, but the figures do not face in opposite directions, so it is not a proper reflection. #### bernsaquino

The correct answer to this question is A, 64. To find a geometric mean, the current ratio must first be found. Symbolized by the variable r, the common ratio is the constant between the numbers provided. The equation r squared n-1 = an/ a1.

Plugging in the information we have been given, and the equation turns into r 5-1 equals 256/1. 5-1 equals four, and 256 divided by 1 are 256. This makes r4 = 256. Then, we would square root 256 by 4, which equals 4 or r = 4. So, with knowing 4, and inserting three geometric means between 1 and 256, the third would be 64. 1, ____, ____, ____, 256 or 1, 4, 16, 64, 256. #### vasilescu.irina

A is the answer to this question. The equator of the earth is actually an imaginary line. If you would view the earth from a distance, you will not see an actual line that will separate the north and south poles from each other. This usually signifies the middle of the celestial body.

The countries that are located near the equator of the earth may experience constant climate all year round but there are two usual periods that may occur namely wet and dry season. The wet and dry season can be different from one country to another. Most of the countries on the equator experience high and tropical climates all-year round. #### colouredpencil

This numerical series rises in specific stages by adding to the number before. The numbers added to form the series and within that series a set amount is added. So 5 is added to make 7, 7 to make 14, 9 to make 23 and so on. Each time, the amount added rises by 2. Therefore the missing amount is 34. #### Mike John

Self Motivator, Energetic & Smart Team Lead

Mathematicians say the value of pi will never end. This is because it is known as an irrational number which means that it does not end, nor does it repeat. Mathematicians using computers are constantly trying to set new records for calculations for pi.

I think the most current record was set in 2016 by a man named Peter Trueb. With his company’s permission, he used 24 of their hard drives, each containing 6 terabytes of memory. The end result was a calculation of pi to 9 trillion digits. It’s quite impressive to see it expressed as “22,459,157,718,361 fully verified digits of pi”.  