The height of a triangle is 1 more than 3 times its base. If the triangle has an area of 9 cm^2, what are the measures of its base and height?

What is the number 321,000,000 in scientific notation? also what is the number? ?

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).

Tom drove 206 miles in 3.9 hours. estimate his average speed.