Mathematics, 27.09.2019 12:20 ashlon98
Manuela solved the equation 3 โ 2|0.5x + 1.5| = 2 for one solution. her work is shown below. 3 โ 2|0.5x + 1.5| = 2 โ2|0.5x + 1.5| = โ1 |0.5x + 1.5| = 0.5 0.5x + 1.5 = 0.5 0.5x = โ1 x = โ2 the other solution to the equation is .
Answers: 2
Mathematics, 21.06.2019 19:40
Ascatter plot with a trend line is shown below. which equation best represents the given data? y = x + 2 y = x + 5 y = 2x + 5
Answers: 1
Mathematics, 21.06.2019 20:30
Does the function satisfy the hypotheses of the mean value theorem on the given interval? f(x) = 4x^2 + 3x + 4, [โ1, 1] no, f is continuous on [โ1, 1] but not differentiable on (โ1, 1). no, f is not continuous on [โ1, 1]. yes, f is continuous on [โ1, 1] and differentiable on (โ1, 1) since polynomials are continuous and differentiable on . there is not enough information to verify if this function satisfies the mean value theorem. yes, it does not matter if f is continuous or differentiable; every function satisfies the mean value theorem.
Answers: 1
Mathematics, 22.06.2019 00:00
(20 points) a bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. the bank prides itself on its mortgage application process and decides to investigate the claims. the bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days): 5, 7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10, 17, 12, 10, 9, 4, 10, 13 assume that the random variable x measures the number of days a customer waits for mortgage processing at this bank, and assume that x is normally distributed. 2a. find the sample mean of this data (x ฤโฆ). 2b. find the sample variance of x. find the variance of x ฤโฆ. for (c), (d), and (e), use the appropriate t-distribution 2c. find the 90% confidence interval for the population mean (รฎฤพ). 2d. test the hypothesis that รฎฤพ is equal to 7 at the 95% confidence level. (should you do a one-tailed or two-tailed test here? ) 2e. what is the approximate p-value of this hypothesis?
Answers: 2
Manuela solved the equation 3 โ 2|0.5x + 1.5| = 2 for one solution. her work is shown below. 3 โ 2|0...
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