What is the circumference of the given circle? use 3.14 for the value of π and round your answer to the nearest tenth.

a) 46.5 mi
b) 47.8 mi
c) 48.4 mi
d) 50.3 mi

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?