The two cones below are similar. What is the value of x? 4
O A. 0.16
O B. 0.32
C. 0.8
O D. 0.4

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.

Agame store sells  2  large puzzles for  $16  and  3 small puzzles for  $15.  the store made  $128  in puzzle sales this week.the equation  8l+5s=128  represents this week's earnings from puzzle sales, where  ll  represents the number of large puzzles sold and  s  represents the number of small puzzles sold.which statements are correct regarding the equation  8l+5s=128? select all the apply.1.the coefficient 5 in the equation gives the cost of one large puzzle.2.the coefficient 5 in the equation gives the cost of one small puzzle.3.the constant 128 in the equation gives the total number of puzzles sold.4.the coefficient 8 in the equation gives the cost of one large puzzle.5.the coefficient 8 in the equation gives the cost of one small puzzle.