a teacher wants to reward her students with a party, so she surveys the class about the type of party they prefer.

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2

1 is c

2 is a

3 is a

step-by-step explanation:

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.