A married couple with one son were tested for lead poisoning, only the parents tested positive. Eventually, the source of the poison turned out to be martini glasses painted with leaded paint.
81 ftlb
Try doing the division, in this case, 81 / 3. If you get a whole number, it is; otherwise it isn't.
(a + 9)(a - 9)
in school
Use your calculator to calculate the square root of 81. Or use trial-and-error, to see which number, when multiplied by itself, gives you 81. (Hint: In this case, it is an integer.)
The 1908 Case Of Muller Vs. State Of Orgeon Was Precedent Setting In That The Supreme Court
Mostly School
A "landmark" or a "precedent-setting" case.
The unit rate of 405 and 5 is 81. To determine the unit rate, divide the first number (405) by the second number (5). The result is the unit rate, which in this case is 81.
Main Bearing Cap - Bolt: 81 - 95 NM. Try google
There is a formula for the "difference of squares." In this case, the answer is (y + 9)(y - 9)
It is 80.5, the number halfway between them. Median means "half of the numbers are above and half are below". With only two numbers we just split the difference. In this case the Median and the Mean are the same number - but this is not always the case. If our numbers were 80, 80, 81, 83, the Median would still be 80.5 but the Mean would be 81.