Zoe's video game controller needs a pack of batteries zoe test two brands of batteries brand x runs for 20 hours and brand y runs for 12 hours if zoey plays video games for a 120 hours this year how many fewer packs of brand x what she need than brand y

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Wanna brainliest? ! ms. mcmahon is building a shed as shown. what is the measure of the angle at the top of the shed? a) 126 b )116 c) 64 d) 32

Which ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15