50% of the babies are born female. olive wants to find the probability that 20 or more of the 50 babies born today were female. we need to design a simulation. which random device can be used to best represent this situation?
a. double sided coin heads females, tails males
b. use a random generator use number 1-100, assign 1-20 as female and 21-100 as male
c. use a pair of dice. doubles for female and the rest for male
d. use a spinner with 50 parts and assign 20 parts as female and 30 parts for male

Which parent function is an example of a piecewise function? answers: linear parent function quadratic parent function an exponential parent function absolute value parent function pls i’m sorry if this doesn’t make sense

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.