1. which of the following is equivalent to i7 + i8 + i9 + i10? a) 1
b) 2 + i
c) 1 - i
d) 0

2. when simplified, the sum 5i^18 + 7i^25 + 2i^28 + 6i^43 is equal to...?
a) 2 - 4i
b) -3 + i
c) 5 - 71
d) 8 + i

thank you in advance :)

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

c

step-by-step explanation:

there is vertical asymptote at x = 2 and x = 0

vertical asymptote occurs at the points where the denominator is 0. so we can say that

x = 2 occurs when there is a factor (x-2) in the denominator, and

x = 0 occurs when there is a factor "x" in the denominator

thus, the denominator of the equation would have "x * (x-2)", this is option c only. that's the correct answer.

a c

step-by-step explanation: