SOLVE IN TEN MINUTES GIVING BRAINLIEST PLS HELP If the number 85 is removed from a finite collection of numbers, the collection's average decreases by 1.
If the number 74 is removed from the remaining collection, the collection's average
does not change.
How many numbers were in the original collection?

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?