Challenge a scientist is growing bacteria in three colonies, a, b, and c. at the moment, there are 2.3 times 10 superscript 5 baseline bacteria in colony a, 1.2 times 10 superscript 5 baseline bacteria in colony b, and 6.6 times 10 superscript 5 baseline bacteria in all. express each of these numbers in standard form. then use those results to find the number of bacteria in colony c by evaluating the expression shown below .6.6 times 10 superscript 5 baseline minus left parenthesis 2.3 times 10 superscript 5 baseline plus 1.2 times 10 superscript 5 right parenthesis 2.3 times 10 superscript 5 equals nothing

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

In a sample of 2023 u.s. adults, 373 said franklin roosevelt was the best president since world war ii. two u.s. adults are selected at random from the population of all u.s. adults without replacement. assuming the sample is representative of all u.s. adults, complete parts (a) through (d). (a) find the probability that both adults say franklin roosevelt was the best president since world war ii. the probability that both adults say franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (b) find the probability that neither adult says franklin roosevelt was the best president since world war ii. the probability that neither adult says franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (c) find the probability that at least one of the two adults says franklin roosevelt was the best president since world war ii. the probability that at least one of the two adults says franklin roosevelt was the best president since world war ii is (round to three decimal places as needed.) (d) which of the events can be considered unusual? explain. select all that apply. the event in part left parenthesis a right parenthesis is unusual because its probability is less than or equal to 0.05. the event in part (b) is unusual because its probability is less than or equal to 0.05. none of these events are unusual. the event in part (c) is unusual because its probability is less than or equal to 0.05.

What is the rate of change of a line that passes through (2,-5) and (6,-2)?