Abag contains the letters from the words summer vacation. you randomly choose a letter a, and do not replace it. then choose another lettera.. what is the probability that both letters are a's? ?

1/91

Step-by-step explanation:

SUMMER VACATION

There are 14 letters, 2 of them are A's

P (1st letter is an A) = 2/14=1/7

Then we keep the A

SUMMER VCATION

There are 13 letters, 1 of them is an A's

P (2nd letter is an A) = 1/13

P (1st A, 2nd A) = 1/7 * 1/13 = 1/91

c.

step-by-step explanation:

-10i^2-4i

step-by-step explanation:

evaluate for p=2,q=5i

(2−4)(2+5i)i

(2−4)(2+5i)i

=−10i2−4i