Which of the following are roots of the polynomial function? check all that apply. f(x)= x^3+3x^2-9x+5 - a 1 - b 3+√2 - c 3- √2 - d 1- √3 - e 1+√3 - f -5

The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25