Find

∫^[infinity]_-[infinity] x / (1+x^2) ^2 dx.

If the variance of a probability was computed to be 3.6 grams, what is the standard deviation

Tim has 5 apples and 3 bags with 8 apples in each bag. How many apples does Tim have in all?

Subtract these polynomials. (6x7 - x + 8) - (x7 + 2) = A. 5x7 - x + 6 B. 5x7 - x + 10 C. 7x7 - x + 10 D. 7x7 - x + 6

Use a calculator to find a value of theta between 0 degrees and 90 degrees that satisfies the statement. Write your answer in degrees and minutes rounded to the nearest minute. csc (t) = 7.0683

What is the anwser for 3+99t-99u

Simplify the following expressions. Group like terms together first. 2a - 3ax + 4a + 4ax 8r + 9s - 4r - 7s x + y + z - 3x - 4y - 2z 9 + 4b + c - 9b - 1

If 90 percent of cookies were eaten and five remain how many cookies were on the platter before they were eaten

Naming arcs and finding arc measures Which statements are correct?

What is twenty on thousand and sixty four in digits?

Round 6.5472 to the hundredths place.