Let f : a + b be a function. (a) let w, z ca. prove that f[wu2] = f[w] uf[z]. (b) let x, y cb. prove that f-'[xny] = f-'[x] nf-'[y].

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.