Posts by sam

Total # Posts: 5,401

  1. Math.

    Sky is wrong 5. is D.
  2. Applied Chemistry - HELP!

    Make a poster of types of product warning labels. I'm having a hard time looking up types of product warning labels. Please help and please do not just give me Google link to product label for me to look up by myself which I did but I .... having a hard time.
  3. History

    canada and around the time of the constitustion act i suppose to start
  4. History

    What were three tactics of assimilation used on aboriginals?
  5. Accounting

    Paid $1,200 cash to Hilldale Mall for Success Systems' share of mall advertising cost. I need to know the debit and credit.
  6. Accounting

    Completed a project for Chang Corporation abd received $3620 cash. I need to know the debit and credit. Thanks
  7. math please help

    I need help too
  8. Algebra

    For f(x)=(3x^2)+5and g(x)=7x-2, a. Verify: g(x + 2) ≠ g(x) + g(2). b. Find (f – g)(x). c. Using the resulting function in (b), show that (f – g)(2) = f(2) – g(2). (The work should be different for each side of the equation.) d. Is (fg)(0) =(f/g)(0)? ...
  9. chemistry

    Calculate the molarity of a solution made by adding 47.2g of NaNO3 to a flask and dissolving it with water to create a total volume of 1.80L .
  10. physics

    A 2inch diameter pipe has been chosen to pass 65 GPM. Can this diameter be used for the suction line? If not , what line diameter should be specified?
  11. physics

    . An open tank holding 400 cubic foot of air at atmospheric pressure at 70 degrees F and heated to 160 degree F. What is the volume of air that escapes from the tank?
  12. physics

    A 25HP electric motor turning a 1800 RPM will produce how many foot pounds of torque?
  13. math

    The ratio of Maya’s beads to Kayla’s beads was 12:7. After Maya bought another 28 beads and Kayla gave away 3/2 beads, 5/7 of Kayla’s beads were left. a) How many more beads did Maya have than Kayla in the beginning? b) Find the new ratio of Maya’s beads to...
  14. math

    The ratio of Maya’s beads to Kayla’s beads was 12:7. After Maya bought another 28 beads and Kayla gave away 32 beads, 57of Kayla’s beads were left. a) How many more beads did Maya have than Kayla in the beginning? b) Find the new ratio of Maya’s beads to ...
  15. calc

    Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. (Enter your answers as a comma-separated list.) f(x) = x^3 − x^2 − 12x + 8, [0, 4]
  16. Math

    Choose all measurements that are equivalent to 45 meters. a 450 centimeters b 4500 centimeters c 0.045 kilometer d 0.45 kilometer e 4500 millimeters I pick b, d, e is this correct.
  17. Math

    What ratio is equivalent to 3/20? a 5 to 100 b 100 to 5 c 140 to 21 d 21 to 140 I picked d is this correct?
  18. math is my answer correct

    Is my answer correct?? The function h(t) = 2 + 50t - 1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. A) What is the maximum height reached by the ball? I got ...
  19. math

    Thank you. I moved the decimal too many places. Thanks again
  20. math

    A $300 mountain bike is discounted by 30% and then discounted an additional 10% for shoppers who arrive before 5am. If you go to the store at 4:30 am, how much will you pay? I did 300^30 =90. 300 -90 ==210 ^ 10 =2.10. 210-2.10= 207.90. Is this correct?
  21. math

    I get 2,250. Thank you Ms. Sue for making it easy to understand.
  22. math

    ted takes out a student loan to pay for his college tuition this year. Find the interest on the loan if he borrowed $2,500 at an annual interest rate of 6% for 15 years. Could someone help step by step, I cant seem to get it. Thank you
  23. math

    Ted takes out a student loan to pay for his college tuition this year. Find the interest on the loan if he borrowed $2,500 at an annual interest rate of 6% for 15 years. What is the formula to figure this out ?
  24. linear algebra

    Solve using the concept of rank. Is S={−16 −7 −21,2 1 3, 21 9 2} a linearly independent set of vectors in R3? So I know how to find out if this set is linearly indep. But, I don't know how to use row rank to find this out..
  25. math

    thank you
  26. math

    Tim sells sneakers. He receives $9.75 an hour and 3% commission on sales. One week he works 24 hours and his sales total $1,879.95. What are his total earnings for the week ? Please help
  27. science

    is it corrrectr
  28. science

    i think its a
  29. science

    At 3:15 one afternoon, the temperature over the land reaches its highest value for the day — about 89°F. The temperature over the adjacent water is about 72°F. What would the expected weather conditions be at this time? A. Cloudy skies and a sea breeze B. Clear ...
  30. Pre-Algebra

    Equation S: y = x + 9 Equation T: y = 2x + 1 Which of the following steps can be used to find the solution to the set of equations? x = 2x + 1 x + 9 = 2x x + 1 = 2x + 9 x + 9 = 2x + 1
  31. Math

    Zain goes swimming. He swims the first length of the pool in 2.5 minutes. The time he takes to swim each length is 10 seconds more than he took to swim the previous length. A. Find the time Zain takes to swim the fifth length. B. Find the time taken for Zain to swim a total of...
  32. Math

    A ball is dropped vertically. It reaches a height of 1.6m on the first bounce. The height of each subsequent bounce is 80% of the previous bounce. A. Find the height the ball reaches on the 6th bounce. B. Find the sum of the first seven terms of this sequence.
  33. life orientation

  34. chemistry

    2 NH3 (g) ----> N2 9g) + 3 H2 (g) at equilibrium, [NH3] = 0.0227 M, [N2] = 0.119 M, and [H2] = 0.346 M. Calculate Kc for the reaaction at this temperature
  35. computer applications

    John wants to see the formulas he has used in his spreadsheet but he does not want to see the results of the formulas. How does he display his formulas? A. Click on Trace Precedents. B. Click Print Formulas. C. Click on Show Formulas. D. Click Evaluate Formulas from reading my...
  36. Physics

    Oops, c should be when cos(kx) = 0, work it out from there.
  37. Physics

    a), Just pop 0 into the equation, what are you left with? b) ω is 2pi/T, so pop that into the equation. c) ?? Not sure. I think it's whenever Sin(wt) = 0, so 0, pi, 2pi, 3pi etc. But I think wavelenth is 2pi, so 1/2, 1, 3/2 might be the answer.
  38. Maths

    Suppose that the reliability of a HIV test is specified as follows: Of people having HIV, 90% of the test detect the disease but 10% go undetected. Of people free of HIV, 99% of the test are judged HIV–ive but 1% are diagnosed as showing HIV+ive. From a large population ...
  39. math

    Robert is replacing sod in two square-shaped areas of his backyard. One side of the first area is 7.5 feet. One side of the other area is 5.7 feet. The sod costs 'y' dollars per square foot. A)Write an expression to show how much Robert will spend on sod. B)If the sod ...
  40. math

    In each of the following, relationships among marked angles are given below the figure. Find the measures of the marked angles. b. m(∠AOB ) is 30° less than 2m (∠BOC ) c. m(∠AOB ) – m(∠BOC ) = 50
  41. Math

    A flower planter is to be made from landscape ties that are 4 feet long, four inches high and six inches wide. Each planter is 4 ties high. Describe how to build the planters so that they are square
  42. Math Ms.Sue

    For the 2nd one, its c.
  43. statistics

    In the population, the average IQ is μ = 100 with a standard deviation of σ = 15. A team of scientists wants to test a new medication to see if it has a positive effect on intelligence. A sample of n = 10 participants who have taken the medication has a mean of M = ...
  44. Physics

    mass is grams, so 0.016 .. pop that in your formula and you're golden
  45. earth

    what is 15 times 12
  46. math

    Tony plans to install a window pane that has a length of 8 inches and a width of 6 inches. He decides that the length has to be reduced by z inches. He says that the new area of the window pane will be 48−z. Is Tony correct? Why or why not? THANK YOU!!!!!
  47. math

    Janice plans to build a rectangular table top with an area of 60+20r square inches. The width of the table top is 10 inches. What is the length of the table top?. THANK YOU
  48. Algebra 2

    Simplify each sum or difference. State any restrictions on the variable. -3x/x^2-9+4/2x-6
  49. physic

    Question Part Points Submissions Used A hypodermic syringe contains a medicine with the density of water (figure below). The barrel of the syringe has a cross-sectional area of 2.88 10-5 m2. In the absence of a force on the plunger, the pressure everywhere is 1.00 atm. A ...
  50. physics

    NEEDS HELP PLEASE!! A 100kg shot putter is putting a shot 4kg. Just before he releases the shot, he is in the air (feet are off the ground). At this instant, the only force he exerts against the shot is an 800N horizontal force directed forward. a-what is his horizontal ...
  51. math

    Scale factor of 0.5 inches = 1.5 feet
  52. linear

    ^ it is an augmented matrix, sorry the formatting is bad.
  53. linear

    Is the set S = {v1, v2, . . . , vk} linearly independent? 1 0 2 −2 0 1 0 0 1 0 −1 −1 2 0 0 0 −1 2 1 0
  54. Ratio

    The ratio of cats to dogs at the shelter is 3 to 2. If there are 16 cats at the shelter, how many dogs are there?
  55. S.S

    B, im 110% sure
  56. Statistics

    How does the standard deviation differ to of the sample mean x bar. Please help I'm confused
  57. linear algebra

    ^ that is an augmented matrix by the way. with <0,0,0,0> being the vector added
  58. linear algebra

    1 0 2 −2 0 1 0 0 1 0 −1 −1 2 0 0 0 −1 2 1 0 Is the set S = {v1, v2, . . . , vk} linearly independent?
  59. Problem Solving

    If I understand correctly the money he can spread is meant to be the money he can spend? so all you have to do is take 5% of the money he earned. so .05*x = y where x is total money earned and y is money able to spend
  60. math

    Write and solve an equation to find the complement of an angle that measures 42 degrees. THX!
  61. Theology (religion) HELP!!!! (plz read ASAP!)

    I'll pick i mean NOT I'll BE.
  62. HELP!!!! (plz read ASAP!)

    So... I'll be Isis as an example since that reflect an 'unredeemed' (unsaved) world.
  63. Theology (religion) HELP!!!! (plz read ASAP!)

    Does this question means.... natural disasters or something...?
  64. HELP!!!! (plz read ASAP!)

    I'm still struggling....
  65. Theology (religion) HELP!!!! (plz read ASAP!)

    Nae one or two experiences or situations that reflect an 'unredeemed' world. What reasons can you identify for this. 300 words Please help me. I'm NOT asking you to do this essay for me .... I just don't know what to write for this essay.
  66. Math

    Two rectangles have an area of 81 square inches.Name two possible perimeters for the rectangles.
  67. math

    At 8 A.M., Dylan and his neighbor, Mickey, drove in their cars to a city that was 240 mi. away from their neighborhood. When Dylan reached the city, Mickey had 40 mi. to go. He finally completed the trip 48 minutes later. a) How long did it take Mickey to drive to the city? b...
  68. Math

    –37of the people who live in an apartment building are men. 58of the remaining people are women. The rest are children. A total of 220 men and women live in the building. How many people live in the apartment building altogether?
  69. math

    A dog weighs 44 pounds and the veterinarian thinks it needs to lose 7 pounds. Mikala wrote the equation x+7=44 to represent the situation. Kirk wrote the equation 44-x=7. Which equation is correct? Can you write another equation that represents the situation? Thank you for ...
  70. math

    Write an equation to represent each situation: 1)Juanita has 102 beads to make n necklaces. Each necklace will have 17 beads. 2)Craig is c years old. His 12-year-old sister Kaitlin is 3 years younger than Craig. 3)Kim rented skates for h hours. The rantal fee was $2 per hour ...
  71. law

    What are 2 responsibilities of the federal courts?
  72. algebraic connections

  73. math

    Use the information below to write and simplify an expression to find the total weight of the medals won by the top medal-winning nations in the 2012 London Olympic Games. The three types of medals have different weights. U.S.A. Gold=46 Silver=29 Bronze=29 China Gold=38 Silver...
  74. Math

    The ratio of boys to girls in the checkers club at one school is 2:3. the number of club members is more than 20 and fewer than 30. how many club members are there?
  75. calculus

    given the velocity of a particle traveling along the y-axis by v(t)=tsin(t^2)
  76. math

    thank you Ms. Sue. I get mixed up a lot with these kind of problems. you really break it down to be able to understand. thank you
  77. math

    please help on this problem. -2x+4(3x-4)=84. cant get the answer. thank you
  78. chemistry

    could one separate the components of a mixture of PbCl2 and Mg(OH)2 using only cold water?
  79. AP calculus

    If 54 J of work are needed to stretch a spring from 15 cm to 21 cm and 90 J are needed to stretch it from 21 cm to 27 cm, what is the natural length of the spring?
  80. AP calc

    If the work required to stretch a spring 2 ft beyond its natural length is 6 ft-lb, how much work is needed to stretch it 18 in. beyond its natural length?
  81. AP calc

    A spring has a natural length of 18 cm. If a 22-N force is required to keep it stretched to a length of 24 cm, how much work W is required to stretch it from 18 cm to 21 cm? (Round your answer to two decimal places.)
  82. physics

    A tire placed on a balancing machine in a service station starts from rest and turns through 4.93 revolutions in 1.47 s before reaching its final angular speed. Calculate its angular acceleration. It must be in units of radians. Please help. I have 20 attempts to do this and I...
  83. Math 12

    a) How many different sums of money can be made from a toonie, a $5 bill and a $10 bill. I think this equals 2^3-1 b) How many different sums of money can be made from the money in (a) as well as one more $10 bill? This should equal 11. c) Why does the situation become much ...
  84. math

    thank you so much .pemdas -I get it
  85. math

    HOW do I solve this equation? 6X -5(-X - 13)=131. WHAT IS THE RULE OF ORDER TO DO THIS? THANK YOU
  86. english

    Here is my work. She didn't have an expressive manner,so it was idle to attempt to ascertain the state of her affections.
  87. english

    Combine these sentences into one sentence using conjuctions,adverbal connectives to create compound sentence. It was idle to attempt to ascertain the state of her affections. She didn't have an expressive manner. Thank you.
  88. english

    Combine these sentences into one sentence using conjuctions,adverbal connectives to create compound sentence. The door opened. The crooked little cotton -eyed piano player stood in the entrance. He was waiting for a sound to tell him where she was. Thank you.
  89. math

    thank you
  90. math

    how do i do this equation ? -158=-2x+ 2(7x -7) . thank you
  91. Science

    An elastic cord of elastic constant k and length L is hung from point A having a massless block at the other end. A smooth ring of mass M falls from point A. What is the maximum elongation of cord?
  92. math

    thank you so much
  93. math

    Could you show me the work to get to the answer please? thank you
  94. math

    m-n divided by 4. use m =5 and n = 8. please help. ty
  95. Math

    a rectangular room on a blueprints is 2 inches wide and 5 inches longif the scale of the blueprints to the actual room is 1:72,what is the width of the room?
  96. Math

    yesterday, molly lunch cost $9.80 and she left a $1.49 tip, today molly lunch cost $12.60 if she tips at the same rate that she did yesterday how much of a tip should molly leave
  97. math analysis

    verify tan x/2=secx /secxcscx+cscx
  98. math

    How do I simplify this expression -2x +11 +6x . Thank you for help
  99. Math

    The dissipation of heat through a composite material of width w centimetres can be modelled by the function f(w)=10/w-0.77ln(w)–3.2 You are required to find the width of material that will prevent any heat dissipation. State what equation you will need to solve?
  100. math

    Tony is on his way home in his car. He has driven 12 miles so far, which is three-fourths of the way home. What is the total length of his drive?
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