Nếu lim┬(x→b)⁡〖(G(X)-G(b))/(x-b)〗 =2021 thì phát biểu nào sau đây sai a) G(b) tồn tại b) G(x) liên tục tại x=b c)G(b) =2021 d) lim(x->b) [G(x)-G(b)]=0

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.

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