Don't give handwritten answer untill and unless it is only way A ray of light directed at one focusof a hyperbolic mirror is reflectedtoward the other focus. Find theequation that represents the hyper-bolic mirror shown in Fig. 21.82.Fig. 21.823.5 cm2.8 cm

Answered: A ray of light directed at one focus of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A simple random sample of 20 pages from a dictionary is obtained. The numbers of words defined on those pages are found, with the results n = 20, x = 58.5 words, s = 15.5 words. Given that this dictionary has 1460 pages with defined words, the claim that there are more than 70,000 defined words is equivalent to the claim that the mean number of words per page is greater than 47.9 words. Use a 0.05 significance level to test the claim that the mean number of words per page is greater than 47.9 words. What does the result suggest about the claim that there are more than 70,000 defined words? Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Assume that the population is normally distributed. What are the null and alternative hypotheses? O A. Ho: µ> 47.9 words H1: µ 47.9 words Ο D. Ho : μ= 47.9 words OC. Ho: µ=47.9 words H1:µ< 47.9 words H1: µ#47.9 words Determine the test statistic. |(Round to two…
All of the employees at the acmesoft company are either programmers or salespeople. The programmers are always tell the truth, the salespeople always lie. Threes Acmesoft employees - A, B, and C-were standing together in the hallway. A visitor passed by and asked A. "Are you a programmer or a salesperson?" A mumbled an answer that the visitor could not hear clearly. The visitor then asked B, "what did A say?" B replied. "A said that he is a salesperson."At this point, the third employee, C, said ,"Don't believe B; he is lying! What are B and C? 1/ B and C are both programmers 2/ B is a programmer and C is a salesperson 3/ B is a salesperson and C is a programmer 4/ B and C are both salesperson
22. Is this statement valid? If it rains, it pours. It did not pour, so it did not rain.
State whether the entire statement is true or false, and explain why. a) The light is on and the light is off. b) The light is on or the light is off. c) If the light is one, then the light is off.
We represent “false” by the value 0 and “true” by the value 1.
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A ray of light directed at one focus of a hyperbolic mirror is reflected toward the other focus. Find the equation that represents the hyper- bolic mirror shown in Fig. 21.82. Fig. 21.82 F 3.5 cm 2.8 cm