Mathematics, 12.04.2021 22:40 elysalmeron05

Can someone help me and explain i just learned abou this and i need help please help

Can someone help me and explain i just learned abou this and i need help pleeeease help

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Mathematics, 21.06.2019 16:20, hann647

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

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Mathematics, 22.06.2019 02:00, albattatasraap5wymy

An amusement park manager determined that about 23 of all customers would wait in long lines to ride the new roller coaster. which simulation could not be used to answer questions about whether a customer would wait?

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Mathematics, 22.06.2019 03:30, noname61

14+2 (56-1) this is an arithmetic sequence

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Mathematics, 22.06.2019 03:50, jescanarias22

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.

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Can someone help me and explain i just learned abou this and i need help please help
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