Wyzant Answershttps://www.wyzant.com/resources/answers/questions?f=activeAsk questions and get free answers from professional tutorsFri, 25 May 2018 19:50:35 -0500https://www.wyzant.com/images/logos/wyzant-logo.pngWyzant Answershttps://www.wyzant.com/resources/answers/questions?f=activehttps://www.wyzant.com/resources/answers/questions?f=active688176https://www.wyzant.com/resources/answers/490739/change_ratingJulie from Boulder, COhttps://www.wyzant.com/resources/answers/users/view/87358192Help Me Find The Answer.change rating<div>ia this possible I accidentally gave a low rating</div>Fri, 25 May 2018 16:35:25 -05002018-05-25T16:35:25-05:00688191https://www.wyzant.com/resources/answers/490759/construct_a_95_confidence_interval_for_the_population_proportion_who_claim_they_always_buckle_upSakon from Sunnyvale, CAhttps://www.wyzant.com/resources/answers/users/view/87463342StatisticsConstruct a 95% confidence interval for the population proportion who claim they always buckle up.<div>Suppose that insurance companies did a survey. They randomly surveyed 430 drivers and found that 330 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up. NOTE: If you are using a Student's t-distribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)</div>
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<div>x:330</div>
<div>n:430</div>
<div>p':0.7674</div>
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<div>Construct a 95% confidence interval for the population proportion who claim they always buckle up.</div>Fri, 25 May 2018 19:02:39 -05002018-05-25T19:02:39-05:00688163https://www.wyzant.com/resources/answers/490733/the_library_holds_895_books_on_tuesday_library_sword_432_books_and_on_thursday_311_books_are_sold_how_many_books_are_left_in_the_libraryMalik from Jacksonville, FLhttps://www.wyzant.com/resources/answers/users/view/87463164This Is From ProdigyThe library holds 895 books on Tuesday Library sword 432 books and on Thursday 311 books are sold how many books are left in the library<div>Can't answer</div>Fri, 25 May 2018 15:44:40 -05002018-05-25T15:44:40-05:00688158https://www.wyzant.com/resources/answers/490729/how_many_liters_of_carbon_dioxide_co2_44_g_mol_will_have_formed_at_the_end_of_this_reaction_at_stpJose from San Francisco, CAhttps://www.wyzant.com/resources/answers/users/view/87463129ChemistryPlease Answer ASAPHow many liters of carbon dioxide (CO2 - 44 g/mol) will have formed at the end of this reaction (at STP)?<div>C2H5OH + 3O2 = 2 CO2 + 3 H2O </div>Fri, 25 May 2018 15:16:16 -05002018-05-25T15:16:16-05:00688190https://www.wyzant.com/resources/answers/490757/how_many_combinations_of_o_and_e_8_digits_long_can_you_makeEmmanuel from Chicago, ILhttps://www.wyzant.com/resources/answers/users/view/87463338CombinationsHow many combinations of o and e 8 digits long can you make?<div>Is there a formula because I would also like to know how many combination of o and e 10 digits long. </div>Fri, 25 May 2018 19:00:35 -05002018-05-25T19:00:35-05:00688193https://www.wyzant.com/resources/answers/490761/i_like_the_stock_guy_at_my_jobTina from West Haven, CThttps://www.wyzant.com/resources/answers/users/view/87463352AdviceDating And RelationshipsI like the stock guy at my job ? <div>So i like the stock guy at my job, but I dont know him & sometimes he seems like he might be shy. ( or he could be possibly just doing his job) I always see him looking my way, & sometimes it seems like he wants to say something but like I said we dont know each other & i work at a bank inside of the store he works. </div>Fri, 25 May 2018 19:12:03 -05002018-05-25T19:12:03-05:00688195https://www.wyzant.com/resources/answers/490763/use_the_substitution_method_to_solve_the_system_of_equation_choose_the_correct_ordered_pair_2x_2y_16_y_x_4_a_6_2_b_2_2_c_2_2_d_6_2Mina from Tulsa, OKhttps://www.wyzant.com/resources/answers/users/view/87453321Algebra 1Use the substitution method to solve the system of equation. Choose the correct ordered pair . 2x + 2y =16 y = x - 4 A. (6,2) B. (2,2). C . (2,-2) D. (6,-2)<div>Help me..............</div>Fri, 25 May 2018 19:41:42 -05002018-05-25T19:41:42-05:00688184https://www.wyzant.com/resources/answers/490747/owen_bought_a_coat_at_5_off_the_regular_price_of_60_00_which_process_can_owen_use_to_find_the_amount_of_his_discountDoonya from Columbia, SChttps://www.wyzant.com/resources/answers/users/view/87463272Linear Equationsowen bought a coat at 5% off the regular price of $60.00. which process can owen use to find the amount of his discount? <div>Its asking what you do to find the discount.</div>
<div>A divide 60 by 0.05<br />B divide 60 by 5<br />C multiply 60 by 5<br />D multiply 60 by 0.05</div>Fri, 25 May 2018 17:47:02 -05002018-05-25T17:47:02-05:00688119https://www.wyzant.com/resources/answers/490687/supplementary_angleXavier from Chicago, ILhttps://www.wyzant.com/resources/answers/users/view/87462922Supplementary AnglesSupplementary angle<div style="padding-left: 30px;"> (8x+12)</div>Fri, 25 May 2018 12:24:31 -05002018-05-25T12:24:31-05:00688186https://www.wyzant.com/resources/answers/490751/the_descriptive_statistics_for_the_annual_salaries_from_a_random_sample_of_microbiologists_from_two_regions_are_shown_below_construct_a_95_confidence_intervaAmber from Connersville, INhttps://www.wyzant.com/resources/answers/users/view/87463297Statistics QuestionThe descriptive statistics for the annual salaries from a random sample of microbiologists from two regions are shown below. Construct a 95% confidence interva<div><br /><br />To construct a confidence interval for the difference between two population means <br />mu 1 minus mu 2μ1−μ2, <br />use the formula shown below when both population standard deviations are known, and either both populations are normally distributed or both <br />n 1 greater than or equals 30n1≥30 <br />and <br />n 2 greater than or equals 30n2≥30. <br />Also, the samples must be randomly selected and independent. <br /><br /><br />left parenthesis x overbar 1 minus x overbar 2 right parenthesis minus z Subscript c Baseline StartRoot StartFraction sigma Subscript 1 Superscript 2 Over n 1 EndFraction plus StartFraction sigma Subscript 2 Superscript 2 Over n 2 EndFraction EndRootx1−x2−zcσ21n1+σ22n2less than<mu 1 minus mu 2μ1−μ2less than<left parenthesis x overbar 1 minus x overbar 2 right parenthesis plus z Subscript c Baseline StartRoot StartFraction sigma Subscript 1 Superscript 2 Over n 1 EndFraction plus StartFraction sigma Subscript 2 Superscript 2 Over n 2 EndFraction EndRootx1−x2+zcσ21n1+σ22n2<br /><br /><br />The descriptive statistics for the annual salaries from a random sample of microbiologists from two regions are shown below. Construct a 95% confidence interval for the difference between the mean annual salaries.<br /><br /><br /><br />x overbar 1x1equals=$105 comma 060105,060, <br /><br />n 1n1equals=4242, <br />and <br />sigma 1σ1equals=$88908890; <br /><br />x overbar 2x2equals=$85 comma 87085,870, <br /><br />n 2n2equals=3838, <br />and <br />sigma 2σ2equals=$88808880<br /><br /><br /><br />Complete the 95% confidence interval for <br />mu 1 minus mu 2μ1−μ2 <br />below</div>Fri, 25 May 2018 18:10:47 -05002018-05-25T18:10:47-05:00688188https://www.wyzant.com/resources/answers/490753/i_need_statistics_info_on_hi_low_odds_in_a_0_to_999_game_of_chanceRob from Terre Haute, INhttps://www.wyzant.com/resources/answers/users/view/87463324Game Of ChanceHigh/LowI need Statistics Info on Hi-Low odds in a 0 to 999 game of chance<div>I am working on an algo for a hi-low game that has 0-999 and I would like to know what the odds are of getting a string of consecutive rolls of 499 and under. Apparently it is different than a 50/50 chance, I have had a string of maybe 13 or 14 consecutive "losses" and lost all the tokens I was playing with. I am trying to arrange a situation where the odds are astronomically AGAINST losing all the tokens. It allows the "stake" to be doubled with each loss, so I get back the losses rather quickly. So I need to know how many consecutive losses is "impossible" and build my starting token count accordingly. "IF THE GAME IS HONEST" it should be possible to never lose all the tokens before I win them all back. Statistically Speaking ;)</div>Fri, 25 May 2018 18:41:26 -05002018-05-25T18:41:26-05:00688189https://www.wyzant.com/resources/answers/490755/how_do_you_find_this_missing_car_mpgTom from Dallas, TXhttps://www.wyzant.com/resources/answers/users/view/87463325Basic MathHow do you find this missing car MPG?<div><br />I drove 100 miles and got 30 MPG. Next, I drove 500 miles. I got a total of 40 MPG for the total 600 miles. What was my MPG for the 500 miles? <br /><br />What formula did you use? Thank you very much.</div>Fri, 25 May 2018 18:41:48 -05002018-05-25T18:41:48-05:00688179https://www.wyzant.com/resources/answers/490743/janet_ate_14_pieces_of_pizza_2_9_of_it_remains_how_many_pieces_were_there_originallyMimi from Linden, NJhttps://www.wyzant.com/resources/answers/users/view/87463220MathJanet ate 14 pieces of pizza .2\9 of it remains how many pieces were there originally<div> How many pieces remain</div>
<div> </div>Fri, 25 May 2018 16:43:06 -05002018-05-25T16:43:06-05:00688178https://www.wyzant.com/resources/answers/490741/q_in_bio_need_helpBill from Arlington, TXhttps://www.wyzant.com/resources/answers/users/view/87460784Mathq in bio, need help.<div>blues vary inversely as purples cubed. when there are 250 blues, there are 2 purples. how many blues are present when there are 5 purples? </div>Fri, 25 May 2018 16:41:57 -05002018-05-25T16:41:57-05:00688147https://www.wyzant.com/resources/answers/490713/if_9_is_added_to_twice_a_number_and_this_sum_is_multiplied_by_3_the_result_is_the_same_as_if_the_number_is_multiplied_by_4_and_11_what_is_the_numberKathy from Cincinnati, OHhttps://www.wyzant.com/resources/answers/users/view/87463077Word ProblemsIf 9 is added to twice a number and this sum is multiplied by 3 the result is the same as if the number is multiplied by 4 and 11. What is the number? <div>If I be the formula of how to do this i might be able to figure it out.</div>Fri, 25 May 2018 14:29:23 -05002018-05-25T14:29:23-05:00688171https://www.wyzant.com/resources/answers/490735/there_were_388_attendees_25_are_kids_how_many_kids_attendedJazmine from Sacramento, CAhttps://www.wyzant.com/resources/answers/users/view/87463200MathThere were 388 attendees, 25% are kids. How many kids attended?<div>Attendees: 388</div>
<div>Percent kids: 25%</div>
<div>Kids: ?</div>Fri, 25 May 2018 16:18:46 -05002018-05-25T16:18:46-05:00688118https://www.wyzant.com/resources/answers/490685/how_to_find_coordinates_of_a_tangent_at_45_degrees_of_a_polynomial_functionJean-Martin from Ogdensburg, NYhttps://www.wyzant.com/resources/answers/users/view/87462921Tangent Of A Polynomial Functionhow to find coordinates of a tangent at 45 degrees of a polynomial function<div>Hi,</div>
<div> </div>
<div>I'm stuck! I need to find the coordinates of the tangent at 45 degrees of this function:</div>
<div> </div>
<div>y=0.3582x^5-2.2501x^4+4.6235x^3-4.5377x^2+2.4503x+.3513</div>
<div> </div>
<div> </div>
<div>I need to know where is the inflection point at 45 degrees on the graph. By looking at the graph in Excel, the y coordinates should be between 0,75 and 0,80</div>
<div> </div>
<div>I have found the derivative: y=1.791x^4-9.000x^3+13.8705x^2-9.0754x+2.4503</div>
<div> </div>
<div>But I do not know if it is useful. Any clues on what I should do?</div>
<div> </div>
<div>Tks,</div>
<div>%MCEPASTEBIN%</div>Fri, 25 May 2018 12:24:04 -05002018-05-25T12:24:04-05:00688159https://www.wyzant.com/resources/answers/490731/math_aptitude_question_for_greSachin from Adair, IAhttps://www.wyzant.com/resources/answers/users/view/87463121Quant Aptitudemath aptitude question for gre<div>The students of the goodwill school are electing their student union president. There are 450 students at goodwill but 8% of theme are currently taking a gap year and hence not entitled to vote. Another 19 are currently in the process of transferring to a new school, so not entitled to vote either. Out of those who are allowed to vote only 60% voted. Richie got 15/19TH of the total votes, Albert Aspirant received 75% of the remaining votes and bobby content got the rest.</div>
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<div>questions<br />1. votes received by richie<br />2.votes received by bobby</div>Fri, 25 May 2018 15:21:17 -05002018-05-25T15:21:17-05:00688156https://www.wyzant.com/resources/answers/490727/i_don_t_know_how_to_find_the_answerTrinity from Lancaster, PAhttps://www.wyzant.com/resources/answers/users/view/87463118What Is The Answer To 6-3 3/4i dont know how to find the answer<div>At last month's trivia competition, 20 questions were about history and geography, and the other 35 questions were about pop culture. This month, the number of history and geography questions increased by 15%, while the number of pop culture decreased by 20%.<br /><br />Find the percent change in total number of questions from last month to this month.</div>Fri, 25 May 2018 15:07:37 -05002018-05-25T15:07:37-05:00688091https://www.wyzant.com/resources/answers/490643/tent_wall_sizeRobert from Sparks, NVhttps://www.wyzant.com/resources/answers/users/view/87462761Tent wall size<div>if you have a rope 20 feet long place a 7 foot tall pole in the center then take two 6 foot tall poles taking up 6 feet on each side of the rope what is the distance between the two 6 foot poles?</div>Fri, 25 May 2018 10:13:50 -05002018-05-25T10:13:50-05:00