WyzAnt Answershttps://www.wyzant.com/resources/answers/questions?f=new-answersAsk questions and get free answers from professional tutorsMon, 30 May 2016 08:49:38 -0500https://www.wyzant.com/images/wyzant-logo-type-white.pngWyzAnt Answershttps://www.wyzant.com/resources/answers/questions?f=new-answershttps://www.wyzant.com/resources/answers/questions?f=new-answers461795https://www.wyzant.com/resources/answers/221295/finding_coefficients_in_redox_equationChloe from Foothill Ranch, CAhttps://www.wyzant.com/resources/answers/users/view/86373630ChemistryFinding coefficients in redox equation<div>in the balanced equation for the following redox equation, the sum of the coefficients is ___?</div>
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<div>Fe^3+ +I- = Fe^2+ + I2</div>
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<div>a. 4 </div>
<div>b. 5</div>
<div>c. 6</div>
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<div>e. 8</div>
<div> </div>Sun, 29 May 2016 19:35:33 -05002016-05-29T19:35:33-05:00461860https://www.wyzant.com/resources/answers/221359/can_a_polynomial_equation_can_be_written_as_sum_of_sines_and_cosinesAd from Trujillo Alto, PRhttps://www.wyzant.com/resources/answers/users/view/86422795Polynomialcan a polynomial equation can be written as sum of sines and cosines?<div>Can polynomial equation can be written as sum of sine and cosine</div>Mon, 30 May 2016 05:13:48 -05002016-05-30T05:13:48-05:00461801https://www.wyzant.com/resources/answers/221301/in_a_recent_season_a_rod_39_s_batting_average_was_0_277_meaning_that_in_any_given_at_bat_the_probability_he_will_get_a_hit_is_0_277Ally from Omaha, NEhttps://www.wyzant.com/resources/answers/users/view/86381181Algebra HelpIn a recent season A-Rod's batting average was 0.277, meaning that in any given at bat the probability he will get a hit is 0.277. <div>What is the probability he won't get a hit?</div>
<div>What is the probability that he will get a hit in 3 consecutive at bats?</div>
<div>What is the probability he will NOT get a hit on any of the 3 times at bat?</div>
<div>What is the probability he will get exactly 1 hit in his 3 at bats? Hint: Think about the different ways that you could get exactly one hit!</div>Sun, 29 May 2016 20:07:20 -05002016-05-29T20:07:20-05:00461800https://www.wyzant.com/resources/answers/221299/suppose_a_math_class_has_24_studentsAlly from Omaha, NEhttps://www.wyzant.com/resources/answers/users/view/86381181Algebra HelpSuppose a math class has 24 students.<div>In how many ways can four students be selected to take part in a survey?</div>
<div>In how many ways can four students be selected to do 4 different mathematical problems on the board?</div>Sun, 29 May 2016 20:06:09 -05002016-05-29T20:06:09-05:00461803https://www.wyzant.com/resources/answers/221305/an_isosceles_triangle_has_two_sides_of_length_p_and_one_of_length_mMoxa from Mount Laurel, NJhttps://www.wyzant.com/resources/answers/users/view/86421419Geometry Word Problemsan isosceles triangle has two sides of length p and one of length m. <div>In terms of these lengths, write calculator-ready formulas for the sizes of the angles of this triangle.</div>
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<div>Can someone please help me with this problem, please.</div>Sun, 29 May 2016 20:09:21 -05002016-05-29T20:09:21-05:00461805https://www.wyzant.com/resources/answers/221307/there_are_two_circles_that_go_through_9_2_each_one_is_tangent_to_both_coordinate_axesMoxa from Mount Laurel, NJhttps://www.wyzant.com/resources/answers/users/view/86421419Geometrythere are two circles that go through (9,2). Each one is tangent to both coordinate axes. <div>Find the center and the radius for each circle. Start by drawing a clear diagram.</div>Sun, 29 May 2016 20:12:18 -05002016-05-29T20:12:18-05:00461840https://www.wyzant.com/resources/answers/221347/x3_5x2_6x_8_0Sarah from Katy, TXhttps://www.wyzant.com/resources/answers/users/view/86422691Hhh-x3+5x2-6x-8=0 <div>Rational root theorem</div>Sun, 29 May 2016 22:45:08 -05002016-05-29T22:45:08-05:00461846https://www.wyzant.com/resources/answers/221351/find_the_length_of_the_side_of_square_whose_area_is_gicen_in_descriptionAbhinav from Fairview, KYhttps://www.wyzant.com/resources/answers/users/view/86422711Math Word Problemfind the length of the side of square whose area is gicen in description<div>find the length of the side of square whose area is to the area of rectangle with side 25 metre and 20 metre respectively given that square root 5 is equals to 2.236</div>Sun, 29 May 2016 23:20:57 -05002016-05-29T23:20:57-05:00461811https://www.wyzant.com/resources/answers/221317/the_lateral_edges_of_a_regular_hexagonal_pyramid_are_all_20_cm_long_and_the_base_edges_are_all_16_cm_longPriti from New Haven, CThttps://www.wyzant.com/resources/answers/users/view/86421745Geometry Word ProblemsThe lateral edges of a regular hexagonal pyramid are all 20 cm long, and the base edges are all 16 cm long. <div>To the nearest cc, what is the volume of this pyramid? To the mearest square cm, what is the combined area of the base and six lateral faces?</div>Sun, 29 May 2016 20:28:42 -05002016-05-29T20:28:42-05:00452323https://www.wyzant.com/resources/answers/211917/which_answer_is_it_heeeelpAmanda from Spokane, WAhttps://www.wyzant.com/resources/answers/users/view/86139101PhysicsWhich answer is it? heeeelp?<div>When 1 kg of a substance changes from solid to liquid at its melting point, it must absorb an amount of heat equal to which of the following?<br />A. Latent heat of vaporization<br /><br />B. Specific heat of phase changes<br /><br /> C. Latent heat of fusion<br /><br /> D. Specific heat capacity</div>Fri, 22 Apr 2016 13:07:51 -05002016-04-22T13:07:51-05:00461807https://www.wyzant.com/resources/answers/221311/a_plot_of_land_is_bounded_by_a_140_degree_circular_arc_and_two_80_foot_radii_of_the_same_circleMoxa from Mount Laurel, NJhttps://www.wyzant.com/resources/answers/users/view/86421419Algebra Word ProblemA plot of land is bounded by a 140-degree circular arc and two 80-foot radii of the same circle. <div>Find the perimeter of the plot, as well as its area.</div>Sun, 29 May 2016 20:16:52 -05002016-05-29T20:16:52-05:00320433https://www.wyzant.com/resources/answers/76335/find_the_radius_of_curvature_of_the_mirrorDalia from Pleasantville, IAhttps://www.wyzant.com/resources/answers/users/view/8402129PhysicsOpticsFind the radius of curvature of the mirror <div>A magnifying mirror produces an erect virtual image 2.5 times as high as the object 24 cm from it. Find the radius of curvature of the mirror.</div>Fri, 06 Feb 2015 17:06:25 -06002015-02-06T17:06:25-06:00461843https://www.wyzant.com/resources/answers/221349/what_39_s_the_domain_and_rangeHelena from Richardson, TXhttps://www.wyzant.com/resources/answers/users/view/86422698Find The Domain And RangeWhat's The Domain And Range ?<div>{(7,-7),(9,6),(7,7),(-9,-1),(-1,9)</div>Sun, 29 May 2016 22:53:10 -05002016-05-29T22:53:10-05:00461808https://www.wyzant.com/resources/answers/221313/at_constant_speed_a_wheel_rotates_once_counterclockwise_every_10_secondsPriti from New Haven, CThttps://www.wyzant.com/resources/answers/users/view/86421745Geometry Word ProblemsAt constant speed, a wheel rotates once counterclockwise every 10 seconds. <div>The center of the wheel is (0,0) and its radius is 1 foot. A paint spot is initially at (1,0); where is it t seconds later?</div>Sun, 29 May 2016 20:20:38 -05002016-05-29T20:20:38-05:00461839https://www.wyzant.com/resources/answers/221345/the_space_to_be_tiled_is_40_ft_x_32_ft_what_is_the_largest_square_tile_that_mark_could_use_to_tile_the_area_assume_the_square_tiles_cannot_be_cutChelsea from Garland, TXhttps://www.wyzant.com/resources/answers/users/view/86422690Factors And MultiplesThe space to be tiled is 40 ft x 32 ft. What is the largest square tile that Mark could use to tile the area? Assume the square tiles cannot be cut.<div>Factors </div>Sun, 29 May 2016 22:44:56 -05002016-05-29T22:44:56-05:00461827https://www.wyzant.com/resources/answers/221339/how_can_i_get_an_outcome_of_a_percent_by_a_whole_numberKyndell from Houston, TXhttps://www.wyzant.com/resources/answers/users/view/86422662Percentage Problem.ConfusionWorking OutHow can i get an outcome of a percent by a whole number?<div>John and his sister went out for lunch at trey's pasta. Their meal cost $25 and</div>
<div>they left a 12% tip. What was the total cost of the meal including the tip?</div>
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<div>HOW DO I WORK THIS OUT?</div>
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<div>Write your answer down and fill it in the blank spaces above (I can't put the table above.) </div>Sun, 29 May 2016 21:45:34 -05002016-05-29T21:45:34-05:00461818https://www.wyzant.com/resources/answers/221325/graphing_inequalitiesNicole from Shannon, MShttps://www.wyzant.com/resources/answers/users/view/86280297Algebra 1AlgebraMath HelpHigh School Math HelpAlgebra HelpInequalitiesInequalityGraphing Linear InequalityGraphingGraphing Inequalities <div>How would I graph the inequalities x + y < 4 and y - 1 (less than or equal to sign) 1(x - 2)?</div>Sun, 29 May 2016 21:03:14 -05002016-05-29T21:03:14-05:00461809https://www.wyzant.com/resources/answers/221315/circles_centered_at_a_and_b_are_tangent_at_t_prove_that_a_t_and_b_are_collinearPriti from New Haven, CThttps://www.wyzant.com/resources/answers/users/view/86421745GeometryCircles centered at A and B are tangent at T. Prove that A, T, and B are collinear.<div>please help me solve this.</div>Sun, 29 May 2016 20:22:22 -05002016-05-29T20:22:22-05:00461825https://www.wyzant.com/resources/answers/221335/decreasing_centripetal_forceChantelle from Chicago, ILhttps://www.wyzant.com/resources/answers/users/view/85993380PhysicsCentripetal ForceForcesDecreasing Centripetal Force<div>You are a roller coaster engineer, and safety inspectors tell you that your roller coaster has too much centripetal force. What can you do to <span style="text-decoration: underline;">decrease</span> the centripetal foce acting on your roller coaster?</div>Sun, 29 May 2016 21:39:33 -05002016-05-29T21:39:33-05:00461824https://www.wyzant.com/resources/answers/221333/balanced_or_unbalancedChantelle from Chicago, ILhttps://www.wyzant.com/resources/answers/users/view/85993380ForcesPhysicsBalanced or Unbalanced<div>For each situation, determine whether the forces acting on a roller coaster are balanced or unbalanced and explain why using physics terms please:</div>
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<li>The roller coaster moves at a constant velocity as it ascends</li>
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<li>The roller coaster sits at rest at the top of the first hill</li>
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<li>The roller coaster accelerates toward the bottom of the hill at a rate of 9.8 m/s^2</li>
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<li>The roller coaster's brakes activate, causing it to decelerate</li>
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<li>The roller coaster slows to a stop at the end of the track</li>
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