The table shows the number of species in the United States listed as endangered and threatened. a. Find the probability that a randomly selected endangered species is a bird. Round you answer to
the nearest tenth.
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b. Find the probability that a randomly selected mammal is endangered. Round you answer to the
nearest tenth.
about

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

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).

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs