Suppose that a travel bureau claims that the trees in a forest are 84 feet tall on average, with a standard deviation of 2 feet. If you took a sample of 64
trees, which of the following mean heights would be outside the 95%
confidence interval?
A. 84.6 feet
B. 84.4 feet
C. 84.2 feet
O D. 83.6 feet
SUBMIT

Factor the monomial completely 42a3b3

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0