What is the amplitude and period of f(t) =-cost? a. amplitude: 1; period: pi
b. amplitude: -1; period: pi
c. amplitude: 1; period: 2pi
d. amplitude: -1; period: 2pi

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Colby and jaquan are growing bacteria in an experiment in a laboratory. colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours. jaquan starts with 80 of a different type of bacteria that doubles every 3 hours. let x equal number of days. colbys experiment follows the model: a.) y=50*2^x b.) y=50*2^8x c.) y=50*2^12x jaquans experiment follows the model: a.)80*2^x b.)80*2^8x c.)80*2^12x

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.