Annie tried to subtract two polynomials. her work is shown below:
(k? + 2k - 13) - (-3k? + 9k +1)
= k? + 2k - 13+3k? +9k +1
step 1
= (1+3)k? + (2 +9)k + (-13 +1)
step 2
= 4k? + 118 - 12
step 3
at which step did annie make an error, if at all?
choose 1

The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points