Math(Please help)

183,433 results, page 84


Law of Gravitation-find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is negelcted. The gravitational constant is given as G= 6.67428*10^-11 m^3 kg^-1 s^-2 Please give lots of details in answer

math help!!!!! Thanks

Find the surface area for the given square prism. ----------- l. l 8in. l. l l. l l----------l 10 in. 14 in. A.564 in^2 B.664 in^2 C.1,120in^2 D.1,080 in^2 Can somebody explain how to work this problem out? Because when I try I'm only getting 196, 216 Or 276. Please don't yell...

math literacy, economics,business studie,accounting, isizulu,English, life orientation

I am doing grade 11 in commerce class.and I still don't know my carrier choice. but I realised that am good in electricity stuff this year. so I want to be a electrician now.what I must do??help me out please


There is no need to post questions more than once. Please keep in mind that all teachers here are volunteers and are not online all the time. Please have patience and wait for a science teacher to help you.

Social Studies

Please tell some information on Indiana's economy? Just get some information about the state' natural resources and the state's most important way to make money like farming. Please answer my question. Thanks!


I am feeling really frustrated. Can you please guide me in answering those questions. How might religious, cultural, or personal beliefs influence how an event is interpreted? How might a person's mood, personality, or situation influence how he or she interprets this event? ...


can you please correct my personifitcation poem? please? for any mistakes?? thank you! The Wild River The river breaths heavily It is fast and mean The river is strong And swallows all the leaves. The river is a stealer As it snatches the pebbles Then gobbles them up In their ...


please help "Desde cuando _____ tu y Marta?" "Desde que ella fue a Costa Rica." a. se dan la mano b. se dicen "Hola!" c. se escriben d. se encuentran since when ...... you and Marta? since that...? i don't understand athe question or the answers please help


please help me to calculate this. I have gotten everything else right but I am confused on calculation. r=6(1853)-(21)(516)I can do. It is the denominator that I am having a problem with. Square root[6(79)-(21)squared][6(44582)-(516)squared] I have worked with this for over to...

statistics please help deadline 12am

find the normal approximation for the binomial probability that x=5,where n=12, and p=0.7compare probability to table b of normal distributions of table 2. The only thing that i know so far is that p(x=5) is equivalent to 0.29. how would i complete this question? please ...

CHEMISTRY..please help..thanks

Calculate the new molarity if each of the following dilutions is made. Assume the volumes are additive. (a) 52.3 mL of water is added to 27.1 mL of 0.124 M KOH solution (b) 110. mL of water is added to 54.2 mL of 0.808 M NaCl solution ((please show work, thank u so much)


construct three different arguments that display distinict fallacies. Give qan explanation of why each makes a mistake in drawing the conclusion it does. Please can you give me a very good answer to the question for a very important discussion question. Please

art appreciation

I have to do this essay and I can't find anything on this topic. I don't know if I'm looking in the wrong places or what but I would like some help if you can. This is the topic that I have to write on please help. How does symbolism expand the meaning of an art work? 1-3 ...

Unit Conversion. Help Please.

Hi, I having trouble with unit conversions. I don't really get the concept of what I have to do. Please, if anyone could help and explain step by step on how to approach an equation like this, it would much appreciated. Thanks. 55miles per hour to ?yards per ?minute


Find the equation of a line that passes through the points (1/3, 2/5) and (–4/5, 1/2). Please put your final answer in standard form (Ax + By = C) and please make sure that there are NO fractions (or decimals) in this answer and that the “x” term is positive. Make sure ...

mathematics-need help urgently please

A tank with a square base of side x has a capacity of 1000m^3. If the total area is pm^3, show that p=2x^2+4000/x. Hence find the least area of the flat sheet that may be used to build the tank. Please show workings #thanks

physics to Elena please reply

A scuba diver has an air tank with a volume of 0.010 m^3. The air in the tank is initially at a pressure of 1.0x10^7 Pa. Assume that the diver breathes 0.400 L/s of air. Find how long the tank will last at a depth of each of the following. (a) 1.0 m min (b) 10.0 m min Please ...


you asked me about how did i came up with my answer this is what i did: Write each fraction in simplest form. #18 (-5x^3y^3)/(-20xy^4) = (3X(-5)X(x)X(x)X(x)X(y)X(y)X(y))/(2X2X(-5)X(x)X(y)X(y)X(y)X(y)) = after canceling the common terms top and bottom i am left with = 3 and 2 ...


PLEASE FINISH HELPING ME.. I asked experts to answer you. I am not a person who is a expert on writing format. The issue of cover sheet, etc has to be clarified by the teacher. Generally, teachers specify a style guide and format issues. There is no right answer to these ...


Could you please explain why it is: "j'ai descendu les escaliers deux fois" when "descendre" is an "être verb"? Also could you please translate the following sentence? "vous êtes-vous écrit tout les jours?" Does it mean: "have you written yourself(each other) every day?" ...


Taking into account the "Second Law of thermodynaics", what is the maximum percentage of heat at 700 C that can be converted into electricity if the waste heat was produced as steam at 100 C? Please Give as much detail as possible instructor will not help cause I missed this ...


A player kicks a football from ground level with an initial velocity of 28.8 m/s and 26 degrees above the horizontal. What is the ball's hang time? ______s What is the ball's maximum hight? ____ i am so confused on what type of equation i use! please help. I thought i would ...

Physics help please

A blacksmith at a historical reenactment is making an iron hinge. after placing the iron (0.750 kg) in the fire and shaping it with his hammer it is still at 200 C. he puts the iron piece in an 8 L bucket of water at 25 C. what is the final temp. of the iron (assume it is in ...


In the Night The Bed Fell, what is the father's reaction to the scene he discovers when he opens the attic door? He is ready to chase a burglar He's worried someone's been hurt He wants to know what's happened He's glad that everyone's all right My answer is c. Please let me ...

Please Please help!! Math

Some cicadas called 13 year locusts come above ground every 13 years, while others called 17 year locusts come out every 17 years. Mark's grandmother told him about a terrible year when then cicadas were so numerous that they ate all the crops on her farm. Mark thought that ...


Please help me simplify: 4sqrtx^12/24sqrtx^2 *Is this correct: 2sqrt4/12x The answer you get depends upon where you put the parentheses, and you don't show any. I don't see any way of coming up with your answer. 4 (sqrtx)^12/ 24 (sqrtx)^2 = (1/6) x^6/x = (x^5)/6


what are the 2 greatest consecutive even integers whose sum is less that 180? for the 1st I got x+2 and for the 2nd I got x+4 to get x+2+x+4<180, and solved to get, x<87. Now.. I cant get the answer. biggg problemo. please help.

Math, please help

1)Determine the equation of the polynomial function of degree 3, with zeros -2, -1, and 4. The graph of this function passes through (5, -84). I have no idea how to do this one. 2) When 4x^4 - a5x^2 + px + 6 is divided by 2x+1, the remainder is 2. Determine the value of p.


Write a proportion that is equivalent to the statement: If 3 gallons of gasoline cost $5.37, then 8 gallons will cost $14.32. On this one I have know idea how to perform this equation looked for examples no luck can someone help please


could someone please check these problems for me? Thank you! 1. -0.7x<-35 x<50 2. Solve by elimination 3x+4y=3 6x+8y=6 answer:0 3. find y intercept to graph x+5y=10 answer: (0,2)(10,0) 4. use distributive law to solve 7(w-5)=-35 7w-35=-35 if i add 35 to both sides i get ...


could someone please check these problems for me? Thank you! 1. -0.7x<-35 x<50 2. Solve by elimination 3x+4y=3 6x+8y=6 answer:0 3. find y intercept to graph x+5y=10 answer: (0,2)(10,0) 4. use distributive law to solve 7(w-5)=-35 7w-35=-35 if i add 35 to both sides i get ...

7th grade math

Doreen had 15 yards or string she used 11 ft of string to some boxes together. what is the total length of tring that doreen has left? 1)14 yd 1ft 2)11 yd 1 ft 3)9 yd 1 ft 4)4 yd PLEASE HELP IM CONFUSED :-(


I need help with how to do these problems.. SOLVE THE EQUATION USING THE ZERO PRODUCT PROPERTY -8n(5n+3)=0 SOLVE THE EQUATION BY COMPLETING THE SQUARE.. ROUND TO THE HEAREST HUNDRETHS X^2-3x=4 4x^2+4x-24=0 Thank you... I don't get how to do these please explain. Thank you very...


In a competition, only the top 3 horses receive prizes. How many possible ways can a 1st, 2nd, and 3rd prize be awarded if the competition has 12 horses? A. 36 B. 220 C. 440 D. 1320 Please Help!! Thank you.


Can someone please help me. I don't get this question. Thank You In order to avoid a severe storm at sea a ship is set to sail 200 km at an angle of N40*E, then 150 km at an angle of S60*E. What is the displacement of the ship?


I need help figuring this out, I tried to simplify 3 times this are fractions, I can't express fractions in here.. -4/7x=12/35 (-7/4) x (-4/7) = -7/4 x 12/35 1 times x = 84/140 I am having trouble simplifying I got so far 42/70, 21/35 and are wrong please help


Upon leaving Mexico Asanji decided to convert all his pesos back into dollars. how many dollars did he receive if he exchage 42.7 pesos at a rate of $5.30 = 11.1. Show work please

3rd grade math

179,323,175 round to the nearest million sue can you please check my answer . this is my answer 280,000,000. hope i got it right.

Math Analysis

Can someone help me with this problem, please? Thanks!! "A ship leaves port and sails for 2 hours northeast and then 3 hours northwest. If the speed remains constant, what course should the ship take home?"


In a right triangle I need to find the length of the missing side. If.. a = ? b = 1 c = sqrt(5) I would know what to do if the square root wasn't there or if it were a perfect square but it's not, please help... (P.S. if I need to I have to keep it in radical form)


my friend asked me how to do this probelm and i could not figure it out for the live of me. its simple im pretty sure. (6-5i)/(6+5i) I tried using the conjugate method and my answer did not come out correct. can you please answer this?

5th math

find the missing numbers and landmarkd for the set of numbers below: 18,20,20,24,27,27,____,30,33,34,36,36,_ Range:22 Mode:27 Minimum______ Maximum:______ please! show me this problem so, i can do my next problem thank you!!

5th grade math

ms. sue can you help me with another problem? whatnis the median of the following number? 24,99,101,93,14,29? by the way can you please!check my last problem that you posted to me an hour ago here is my answer is 20 the median

Math(can you just check my answer please)

Lines x and y intersect to form angles 1,2,3, and 4. The measure of angle 3 is (3x - 9) and angle 4 is 111 degrees. Can you help me make a equation I think the equation is 3x-9 + 11 = 180 is this correct

Math. Please help!

144/k=9 I don't understand how to do this using reciprocals, how my teacher wants me to solve the problem. Note: The fraction bar is in my paper, so it's 144 being the numerator, k being the denominator, and then =9 if that makes any sense.


a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold? Please explain throughly


the leaning tower of pisa is 55.9m tall and leans 5.5 deg from the vertical. if its shadow is 90.0m long, what is the distance from the top pf the tower to the edge of the shadow? assume that the ground is level. please help in details


Thank you very much for the answer stated below: A perfect square will have an even number of repetitions of each prime factor. 180 = 2*2*3*3*5 e have 2^2 and 3^2, but we need another 5. So, 180*5 = 900 = 30^2 = (2*3*5)^2

math help

A lab assistant wants to make FIVE LITERS of 31.2% acid solution. If solutions of 40% and 18% are in stock, how many liters of each must be mixed to prepare the solution. i don't even know what equation to use or anything, please help me, thank you.


Ms.Lembright ordered the types of muffins below for a class party -12 blueberry muffins for $7.20 -8 chocolate muffins for $4.40 -6 raisin muffins for $4.50 What type of muffin cost the least? show your work please help me!!?


I need help atleast an equation to get started please A lab assisstant wants to make five liters of 27.8% acid solution. If solutions of 50% and 13% are in stock, how many liters of each must be mixed to prepare the solution.


A medication is available in 30mg. tablets. A patient is given a prescription for gr. ii. How many tablets should the patient take? I am not sure how to work this problem out, and i am confused on the gr. ii. part, i do not know what it means, please help. thank you


Find the probability that if the letters of the word "parallel" are randomly arranged that the L's will not be together. In class, I'm studying permutations and combinations. The solutions stated the no. of permutations where 3 L's are together is 6!/2!. Could you please ...


Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0 <= x <= a is revolved about the y-axis, the volume of the solid produced is 7pia3/12 . Please show all work


24 m of fencing are available to enclose a play area. what would the maximum area be if the fencing only went on 3 sides because the wall is used as the 4th side. Please show you work


Given two numbers whose sum is 56. Six times the larger is 72 more than 5 times the smaller. Find the numbers. Please help me solve this problem in a simple explanation so I can understand it.


Anneke's science class measured 10 inches of rainfall during the month of May what was the average rainfall per day?(Round your answer to the nearest hundredth.) Please answer and explain.


Ursula spent a total of $52.34 on two new outfits. She bought two shirt for $12.99, a pair of pants for $18.50, and a skirt. If the sales tax was 7.5%, what was the cost of the skirt? Please solve and exlain. Thanks


The lower leg of a right triangle is 8 cm in length. Calculate the other two knowing that the sides of the triangle form an arithmetic sequence. please give me step by step answers thanks

math - help please

Assume that 2 cards are drawn in succession and without replacement from a standard deck of 52 cards. Find the probability that the following occurs: the second card is a 9, given that the first card was a 9.


ben has 15 puzzles and 27 cds, when he takes a trip he likes to bring one puzzle and one cd as entertainment. how many trips can he take with a different puzzle and cd pair?? and please show how to solve it.....


A traditional Haida hand drum has a diameter of 14 7/8 in. and is 3 in deep. What is the minimum amount of hide used to make the drum if the hide covers only the top and lateral surfaces? PLEASE HELP!! Thank you


A class is. Planning. A. Party. A pizza restaurant cuts. Each. Pizza. Into 8. Slices there are 32 students how many. Pizzas. Does the. Class. Need to. Order. For each. Student to have a slice explain please


please explain #urgent the sum to infinity of a convergent series is 243. the sum of the first five terms is 242. how do you determine the values of the common ratio and the first term


The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile. A. About $46.30 B. About $43.30 C. About $43.40 D. about $43.20 I came up with $43.26 which its not a choice. Please help!!


The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile. A. About $46.30 B. About $43.30 C. About $43.40 D. about $43.20 I came up with $43.26 which its not a choice. Please help!!


a ribbon is 3 2/3 yards long. Mae needs to cut the ribbon into pieces that are 2/3 yard long. I try 3 2/3 divided by 2/3 so the answer I get is 5 1/2. but when I used the model section I get 5 1/3. Please help me I am so confused.


What is the slant height for the given pyramid to the nearest whole unit? Pyramid base = 6cm Height = 4cm A.) 7cm* B.) 5cm C.) 9cm D.) 8cm Ca n someone please check this?


Please help. Julio uses a scale of 1/ 8 inch  1 foot when he paints landscapes. In one painting, a giant sequoia tree is 34.375 inches tall. How tall is the real tree?

math help please

if the pre image of a figure is located at (4,2) (-3,-3)(0,8) and it is reflected in the y-axis followed by a translation of 3 units left and 6 units down where is the new image locate give vertex coordinates


If n+1 is the largest of four consecutuve integers, represent the sum of four integers. A 4n+10 B 4n-2 C 4n-4 D 4n-5 E 4n-8 I really don`t understand this question so I can`t provide my work. Can someone please explain to me how to solve these types of problems. Thank you


Each of these sequence or series formulas involves four quantities. For each formula, describe the four quantities. Then explain how you can find the forth quantity if you know the values of the other three. a)An=a1+(n-1)d b)Sn=n/2(a1+an) c)An=a1r^(n-1) d)Sn=(A1(1-r^n)/(1-r)


A runner competes in a 6 mile race. The year befoere her speed was 3mph slower and it took her one hour longer. What was her speed this year. Please help me by showing all work, Thank you


Answer to this questions Please *Question 8* A clock strikes once at 1 o’clock (am or pm), twice at 2 o’clock (am or pm), thrice at 3 o’clock (am or pm) and so on. How many times will it strike in 24 hours? Select one: 1. 78 2. 136 3. 156 4. 196

math- 8th grade

My homework is converting repeating decimals into fractions. I can't figure out the steps for this problem: 0.083 and the 3 is the repeating number. Can someone please explain the steps to me?

word unscramble

need help unscrambling a word or words tarluna what is it HELP ME UNSCRAMBLE THESE LETTERS TO MAKE A WORD THAT PERTAINS TO SPACE AND IS A P POSSESSIVE NOUN. SEGHRTMLAN J'aodredefis Please post the word or words you need to unscramble, and we'll try to help you. i cant figure ...


Please help, 1) How do you solve 2017^2017 without a calculator? 2) What is the last digit of the solution to this problem: 2017^(2017^2017)? Thank you!

Math Please help

I do not have any Idea how to set this up. Please walk me through the steps. A.) If a customer buys x copies then he or she pays $500 sqrt x. it cost the company $10,000 to develop the program and $2 to manufacture each copy. If a single customer were to buy all the copies of ...


I have three math problems that I have tried to solve but I do not think they are correct. Can someone please help me! 1. What is the product of 225 and 507? I came up with 225 x 507 = 114075 2. Divide by moving the decimal point. 10.5 ÷ 100 I came up with 0.105 to be the ...

Dividing Radicals Problem!!

Divide the following radical and simplify the answer. ((-3-2√48))/((14√50-8)) A.(24+210√2+64√3+560√6)/(-9736) B.(12+105√2+32√3+280√6)/(-4868) C.(12+105√2+32√3+280√6)/4868 D. (24+210√2+64√3+560√...


A business woman intends to rent a car for a 3 day business trip. The rental is $65 a day and $.15 per mile (plan 1) or $90 a day with unlimited mileage (plan 2). She is not sure how many miles she will drive but estimates that it will be between 400 and 800 miles. A) For each...


help please find the greatest common factor of 385 and 1365. 385=5x7x11 1365=3x5x7x13 now which factors do you see common? 5x7 or 35 Here is what I had 385=5x7x11 1365=3x5x7x13 5x7=35 is this correct yes, exactly how I showed you thank you yes your math is correct


I need to interview someone who was born before 1970 and live in the United States during the eighties. Here are some questions. Who were some of the national heroes of the 80s? What do you remember about the Iran-Contra Affair? Please comment on the fashion, styles, fads of ...


Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=1/x^2 y=0 x=4 x=7; about y=–3 i integrated and plugged in values for x and got .61 *pi this is not the right answer been trying for hours please help!


Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=1/x^2 y=0 x=4 x=7; about y=–3 i integrated and plugged in values for x and got .61 *pi this is not the right answer been trying for hours please help!


Find an algebraic model for the sum of a number and its reciprocal. I have come up with y=x+ (1/x), although I was wondering if it would be correct to write it as y=x^2+1/x I am supposed to graph this, but when i graph both I get different graphs on my graphing calculator. ...


Perform the indicated operations and reduce all results to lowest terms. Assume the variables are restricted to values that prevent division by 0. (x^2-y^2)/(x^2-2xy+y^2) divided by (3x+3y)/(7x-21) Could someone please show me how to do this so I can do the rest of my homework...


madison square garedn in new york city is built in the shape of a circle. its diameter is 404 ft and it accommodates 20,234 spectators, the nearest tenth of a square foot, how much area is there for each spectator... please help i am confused...thank you :)


Your calculator gives an answer of x=1.1578074156, y=2E-13 when using ROOT or ZERO in the graphing mode. Give the coordinates of the x-intercept your calculator has given you to the nearest thousandth. <<< ? I have no idea how to solve these. Someone please explain ...


I am great at math but for some reason can not wrap my brain around Algebra for the world! Please Help!! Im stumped! Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x – 5y = 61 7x – 5y = -9

Math- Please Help!!

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.

5th grade math

In 2000 the population of goddard was 5,554. The population of Valley Center was 7,323. What is the Approximate difference between the populations, to the nearest one hundred people. please! help I'm totaly confuse with this question?? do you substract it?


Follow this link please! It is an interactive question that I just cannot figure out


in the diagram below, <G and <H are complementary. What is the measure of G? a)20 b)30 c)40 d)50 inside G they have a problem saying (2x+10)degrees. i relly need help into solving these kind of problems trying to find degrees of each angle but i cant remember the formula...


The probability of a female birth is about 0.5. over the period of a year, would there be more days when at least 60% of the babies born were girls in a.a large hospital b.a small hospital c. it makes no difference please explain your reasoning thanks

interest math

doris browning deposited $8000 into a savings account paying 5.25% interest. how long will it take for her investment to grow to $10,100. The answer i got was 4yr 11mo 30 days but that is wrong someone please help

Math - Algebra 2

I have tried several times to solve this. I have 3 points (0,-5), (3, -6), (-3,-7). I'm trying to get the quadratic equation. I keep getting y=(-1/6)x^2+ (1/6)x +0. When i plug in other numbers to check it's not the parabola facing down like my image. Please help!


Okay now. New question. Find the number of (m) ways in which 6 people can ride a toboggan if ONE OUT OF THREE people must drive. M=? PLEASE DO NOT SOLVE! Just tell me how to do the problem. You MIGHT use factorial.


Okay now. New question. Find the number of (m) ways in which 6 people can ride a toboggan if ONE OUT OF THREE people must drive. M=? PLEASE DO NOT SOLVE! Just tell me how to do the problem. You MIGHT use factorial.


You have a 5/16 in. drill bit. Will it drill a hole large enough to fit a 5 mm bolt? Show two different ways to answer this question. Explain your thinking. I couldn't even figure out the first way. Please help!


  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100