C A chemist has a container of 12% peroxide solution and a container of 20% peroxide solution. She needs to mix the two
solutions to create 100 mL of a 14% solution. If x represents the amount of 12% peroxide solution and y represents the
amount of 20% peroxide solution she needs, which matrix equation can determine the amount of each solution she needs
to make the 14% solution?

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size.it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

How can you construct perpendicular lines and prove theorems about perpendicular lines