Algebra 2 questions:
1. which of the following statements is true? the 2 in (a) and (d) is supposed to be i squared.
(a) i2=-1
(b) √-5=i√5
(c) √-4=2i
(d) -7•i2=7
(e) all the above
(f) none of the above

2. which is true about the complex number a+bi?
(a) a and b are both real
(b) a is real and b is imaginary
(c) a is imaginary and b is real
(d) a and b are both imaginary
(e) all of the above
(f) none of the above

Solve the problem by using a venn diagram a group of students were surveyed about their taste in music. they were asked how they like three types of music: rock, country western and jazz. the results are summarized below: no one dislikes all three types of music. six like all three types of music. eleven don’t like country western. sixteen like jazz. three like country western and jazz, but not rock. six don’t like rock. eight like rock and country western. seven don’t like jazz. how many students were surveyed?