# Cherie

Popular questions and responses by Cherie

Sydney drew a scale diagram of a circular fire pit in the centre of a circular patio with an actual circumference of 15m. The circle containing the fire put is a reduction of the circular patio by a scale factor of1/3. A.) Determine the diameter of the

2. ## Math

A triangular prism has an equilateral triangle as its base. The base of the triangle is 10cm and its height is 10cm. The length of the prism is also 10cm. Find it's surface area

3. ## Chemistry

10. Cyclopropane is an anesthetic that is 85.6% carbon and 14.37% hydrogen by mass. What is the molecular formula of the compound if 0.45 L of cyclopropane reacts with excess oxygen at 120. °C and 0.72 atm to form a 1.35L of carbon dioxide and 1.35 L of

4. ## math

If a Ferris wheel takes 45 seconds to make a complete rotation, how many rotations will it complete in 3 hours?

6. ## Math

A mountain pine beetle population can double every year if conditions are ideal. Assume the forest in Jasper National Park,AB has a population of 20 000 beetles. The formula P=20 000(2)^n can model the population,P,after n years. a) How many beetles were

7. ## Math

A manufacturer is designing an open, cube shaped box to hold a basketball. The basketball has a volume of 2304 Pi cm3. How much cardboard is needed to create the smallest box possible using the least amount of material? DO NOT include seam overlap in the

8. ## Math

Every time Jim shoots a free throw in basketball, he has an 80% chance of making the shot. He is given 3 free throws. Find the probability of each event. a) misses all 3 shots b) misses the first two shots and makes the third. Can someone please explain to

9. ## Chemistry

Briefly explain what the consequense would be if excess 6M NaOH solution instead of ^m NH3 solution were used to separate Fe3+ and Al3+ ions from Ca2+, Cu2+,and K+ ions at pH 9-10.

10. ## math

Antoine estimates he can read one and a quarter chapter of a novel in one hour. Jenna estimates she can read three chapters of the same novel in 2 5/6 hours. Antoine read for 8 hours. Jenna read for 6 hours. Who read more chapters? Show work. Please

11. ## math

Explain why the product of an integer multiplied by itself cannot be negative.

12. ## Math

Rectangle ABCD has been subdivided into 4 regions. The areas of two of these regions are a^2 and 144. The combined area of the other two regions is 25a. What is the perimeter of the rectangle ABCD? Please help and show steps! I don't have a clue how to do

13. ## Math

Convert this measurement to hundreth of a kilometre. 26 mi 385 yd. Could you please show formula on how you got this answer? I am stuck I keep getting the answer as 16 km but the answer is supposed to be 42.19 km Thank you

14. ## Circle geometry

Please help Explain how I figure this out. A circle has diameter 70cm. A chord in the circle is 50cm long. How far is the chord from the center of the circle? I have been stuck on this for days. I appreciate any help. Thank you!!

15. ## Math

What is the probability of tossing two coins and having them both show heads? Show all work. Please help I don't understand this.

16. ## math

How do you solve 5/8*3 4/5 It should read five over eight multiplied by three and four fifths

17. ## Math

Create an inequality for this problem and solve. Devon works in a sporting goods store. She makes \$1250 a week plus 16% commission on everything she sells. What is the minimum she would have to sell in order to make at least \$4000 in a week. This is my

18. ## math

I just finished doing my math study guide for a test and there is one question that I don't know how to do. It is: f(x)=5-2x and g(x)=x^2=7x, find each value. a. g(3) b. f(2)+g(-1) c g(2x) I do not understand this at all, could someone explain this to me?

19. ## Math 11

The time for a swing to move forward and backwards is determined by this formula. T=2pi sqrt L/9.8. T is the time, in seconds,taken for the swing to move through one complete cycle. L is the length of rope supporting the swing. Determine the length of the

20. ## Analytical Chemistry

Suggest a range of sample masses for the indicated primary standard if it is desired to use between 35 and 45mL of titrant: (a) 0.175 M HClO4 titrated against Na2CO3(CO2 product) (b) 0.085 M HCl titrated against Na2C2O4 Na2C2O4-->Na2CO3+CO

21. ## Math

A souvenir consisting of a cube with an inserted sphere is made to represent Earth. Both pieces are made out of solid crystal. The sphere replaces one quarter of the volume of the cube. Calculate the volume of the souvenir piece. The sphere has diameter of

22. ## Science

What is a harmful effect of electrical resistance?

23. ## Science

Citric acid has the formula C3H3OH(COOH)3. How many atoms of carbon,hydrogen and oxygen are in each molecule? Please help I don't understand this!! Thank you

24. ## Math

(1/2)+3/5 /[9/10-(-3/5)]= I got 1.5 is this correct? If not could you please show me how to do this? If Steve answers thank you so much for all your help you are awesome:))

26. ## Math

Please help I don't get how to do this! A spinner has three congruent sectors colored orange, green, and purple. Use the rule of probability of each event. a) landing on orange, then landing on purple b) landing on the same color 2 times in a row.

27. ## Science

Please please help this is the second time I have posted this question. Calculate the amount of work it will take to lift a lawn mower with a mass of 8kg onto the back of a truck which is 0.75m off the ground.show all conversions in your work.

28. ## Math

Solve equation. -5(s-7) = 15

29. ## Math

Please help!!! Scott bought 54m of fencing to enclose a rectangular plot of land. The width of the rectangular plot is 12m. Assume Scott uses all the fencing. What is the length of the rectangular plot of land? a) choose a variable to represent the length

30. ## math

Ivan has completed 45% of his walk. He has already walked 9 km. How much farther does he have left to walk? I don't understand how to do this. Could you please help and show me how you got this answer? Thank you.

31. ## Math

When you divide a proper fraction by an improper fraction, is the quotient less than 1,greater than 1,or equal to 1? I think it is less than one but I'm not sure

32. ## math

Ms.Lecky ordered pizza for a party. 1 5/8 of the cheese pizzas and 2/3 of the ham pizza were not eaten. How much pizza was left?

33. ## Math

I am having a hard time doing equivalent fractions. Would 3/5 of 2/9 be equivalent? Please help

34. ## Math

One third of the students in mrs. hayko's class walk to school. Of the students who do not walk, four-fifths take the bus. a) what fraction of the students in Mrs. Hayko's class take the bus to school? b) How many students might there be in her class?

35. ## Math

Why are 2/3, 4/6, and 6/9 equivalent fractions?

36. ## Math

A student got these marks on 7math tests: 91%,75%,95%,,80%,83%,86%,68% What mark will the student need on the 8th test to make each statement true? a)The mean of the tests is 84% b)The mode of the eight tests is 86% c)The median of the eight tests is 84%

37. ## English

Has anyone read the poem the "Passenger Pigeon" by Paul Fleischman? This poem is a concrete poem and I need to answer the question because of the way the words are laid out, what do they picture? Please help thanks

38. ## Theoretical Probability

What is an event that has a probability of 2/10

39. ## Algebra

The total length of the walking path is 8x+xy+6y. Find missing side length. Other side lengths are: 2x-xy+3y 3x-2xy+3y 2x+5xy-y I know to subtract but I think I’m still doing it wrong. I got two different answers. I got x-xy+y and I got x+3xy+11y. I’m

40. ## Math

I posted this question yesterday. I need to find the perimeter of a shape with two unknown sides. The sides I have are 3x, 2x, 6x-5, 5x-2 . They do not give me total perimeter . I get 1 Mark for each missing side length, 1 Mark for each calculation, and 1

41. ## Math

William multiplied (-2x+1-3y)(-0.5x) and got the wrong solution. Review his work and identify the step in which William made his first error. Step 1 (-2x+1-3y)(-0.5x) Step 2 (-0.5x)(-2x-3y+1) Step 3 -0.5x(-2x)-0.5x(-3y)-0.5x(1) Step 4 x^2+1.5xy-x I think

42. ## Math

I need to find the perimeter of a figure with two missing side lengths. The lengths I have are : 3x, 5x-2, 6x-5, 2x I need the two side lengths and the total perimeter. Please help I have googled and watched videos and I still don’t understand

43. ## Math

Solve using table of values The Winter Sports Shoppe has seen a steady increase in the sales of snowboards over the last three years . They sold 120 snowboards the first year, 280 the second year, and 440 this year. If the pattern continues, how many

44. ## Math

Write 5n=35 in one other way . I’m not sure of another way to write this

45. ## Math

Having a brain freeze and can’t get this one. Write a number equation that has a solution of 6. Explain how you wrote the equation.

46. ## Math

Please help Zachary and Nina made a display in the school window. They cut a piece of ribbon into 42 equal pieces. Each new piece was 15 cm long. Write an equation for the original length of the ribbon.

47. ## Math

The temperature was less than -15 degrees Celsius. Write an inequality and three possible solutions . I wrote t

48. ## Math

Two candles of different sizes were lit. The 12cm candles burned at 0.5cm per hour and the 18 cm candles burned at 2cm per hour. How many hours did it take the two candle sizes to burn to the same size.? I got 4 hrs but don’t think I did equation

49. ## Math

Pedro bought 4 boxes of cereal for some amount. The cost per box was \$3. Write a division equation to find the amount of money Pedro spent on his cereal. I can do a multiplication equation but don’t understand how to do a division one

50. ## Math

Please help!! Alyssa and Daksha are planting tulip bulbs. The tulip bulbs for the community centre flower beds cost \$150.00. The bulbs come in bags of 6 and cost &7.50 per bag. Write an equation to find the number of bags they bought

51. ## Algebra

The Royal Tyrell Museum offers group tours for\$15.85 plus \$3.50 per person. How many people could go on a tour for \$36.85?Create an equation for this and solve. *please show me how to do this not just the answer thank you*

52. ## english

A. Need to know if the following is Noun, adjectival or adverbial clause. !. When I was outside, I saw a blue jay. 2. The city of Austin is the city that I call home. 3. I once saw a tortoise in my back yard, and I have seen a raccoon on the patio. 4.

53. ## maths

2-Log base 10 5

54. ## Math1

Reuben bought a ski helmet from an online sports store. The helmet was shipped to his home in Stirling, Alberta from Provo. Utah. The list price of the helmet was \$165.00 US. On the day Reuben purchased the helmet, the currency exchange rate was \$1 US=

55. ## Math1

Post a New QuestionCurrent Questions Homework Help: Please Help Me! Posted by Courtney B. on Monday, June 20, 2016 at 4:20pm. The Edmonton rush is one of nine teams that play in the national lacrosse league. The weights of the 2013 Edmonton rush players

57. ## Math

Solve this linear equation, y-x divided by 2=5 x-y divided by 5=13

58. ## Math

Could someone please help me. Solve the linear equation by substitution. Y=10-2.2x 5x+y=70 For the first equation I am getting x=21.4 and for the second equation I am getting y=-37. The answers are 21 3/7 and -37 1/7. Could you show me how you do this so I

59. ## Math Linear Equations

Two lines are drawn on a co-ordinate axis. The equation of the first line is y=-2,and the equation of the other line is y=3x+1. What are the co-ordinates of their intersection point? I have been on this for hours and can't figure out how to do this. Please

60. ## Math-Linear Equations

True or false? A line perpendicular to a line whose slope is -0.75 has a slope of 1.3 repeating. Please help me with this.Thank you

62. ## Math

Choose any number for p. Determine whether the following equation is true. (2p-3)(p+4)=2p^2-5p-12 I don't think this is true. Am I correct?

63. ## Math

Solve (16x^2)^-3/4 Please help using step by step. I don't understand how to do this. Thank you

64. ## Math

Simplify (27t^2)^2/3

65. ## Math

The formula l=8t^2/pi^2 represents the swing of a pendulum. In this formula, l is the length of the pendulum, in feet, and t is the time, in seconds, it takes to swing back and forth once. Whst is the length of a pendulum that makes one swing in 2s? Please

66. ## Math

When a satellite is h kilometres above Earth,the time,t,in minutes,to complete one orbit is given by the formula t=Root of (6370+h)^3/6024 a) A telecommunications satellite is placed 30 km above Earth. How long does it take the satellite to make one orbit?

67. ## Trigonometry

Johns eyes are 6 ft from the ground. He is standing 70 ft away from a tree. If the angle of elevation is 24 degrees, then how tall is the tree?

68. ## Math

Please help. I'm sure I use tan but not able to figure this out. A rectangular prism has base dimensions of 24cm by 7 cm. a metal rod is run from the bottom corner diagonally to the top corner of the prism. If the rod forms an angle if 40 degrees with the

69. ## Math-trigonometry

Please help me with the steps !i don't understand this. The working arm of a tower crane is 192m high and has a length of 71.6 m. Suppose the hook reaches the ground and moves along the arm of the trolley, a) determine max distance from hook to operator

70. ## Trigonomrtry

I had asked help for a question and Steve gave me this answer on how to set up equation 20-x/6.11=tan28 degrees The answer is approx 16.75 ft. I still don't know how to do this! When I do it I get different answer. Could you please break this down step by

71. ## Trigonometry

Hi this is a two part question. I got the first part but can't figure out second. Please help! A home is designed to keep sun off outside south wall during summer months and have wall exposed to dun as much as possible during winter months. The highest

72. ## Trigonometry

A wheelchair ramp has an angle of 6 degrees,side length 29ft and height 3ft. For a safe ramp,the ratio of vertical distance: horizontal distance needs to be less than 1:12. Would the ramp be considered a safe ramp? Please show me how to do this! Thank you

73. ## Math

Kendra wants to purchase a bead necklace made of Jade. The cost depends on the amount of Jade in the necklace. Each bead is 7 mm in diameter and there are 100 beads in the necklace. What is the amount of Jade in the necklace in cubic centimeters? Please

74. ## Math

A cylinder has volume of 339.3cm^3 and height of 3cm. What is the radius? Please help! Can you show me the formula to use and the steps involved in getting the answer? Thank you for your time.

75. ## Math

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

76. ## Math

A designer is designing a cylindrical punching bag. He wants to use a maximum of 1.3m^2 of material. He has determined that the diameter of bag should be 36cm. Determine the maximum possible height of the bag to nearest tenth if a centimeter. Please help

77. ## Math

We have a picture frame with width being 3 1/4 inches and length unknown. We need to fit picture with width of 4 cm and length 4.6 cm into frame. What is the scale factor for enlargement? What is length of unknown side of frame? I was given the answer as

78. ## Math

If I borrow \$26,400 @ 7% interest and make payments of \$300 how much will I have left owing after 19 months.

79. ## Space Exploration

Give two reasons why observatories are still being built on Earth instead of launching more space telescopes? I I'm assuming one reason is the cost but can't find another reason .

80. ## Space Exploration

List three subsystems of a SARSAT satellite and tell what the function of eCh subsystem is. Please help I can't seem to find them.

81. ## Geometry

Sandy decides to try golfing. She stands on the outer edge of a circular putting green. In the very center of this putting green is the hole;it is 8m away from where she is standing. Sandy is inexperienced. She hits the ball incorrectly and it veers

82. ## Circle geometry

The endpoints of the arms of an inscribed angle are the endpoints of a diameter. What is the measure of the inscribed angle? How do you know? Please help and please explain how I would draw a diagram of thus. Think you for your help!

83. ## Astrology

Why is it helpful to use the Celestial Sphere to find the position of objects in the night sky. Please help!, Thank you.

84. ## Circle Geometry

A wheel has radius 30 cm.It rolls along the ground toward a tack that is 58cm from the point where the wheel currently touches the ground. What is the distance between the tack and the closest point on the circumference of the wheel! I don't understand

85. ## Physics

Why is using mirrors to generate electricity not a common practice?

86. ## Physics

A high efficiency natural gas furnace is 92% efficient. How many joules of output energy will 750kJ of input fuel provide? Please help! Thank you.

87. ## Physics

Ken has five 200W security lights on outside of home. How much energy do the security lights use in 8 hrs? If the cost of electricity is 8 cents per kWh,what is the cost of operating the security lights ? Please help I'm not sure which formula to use?

88. ## Physics

Does the solar powered calculator work when there is no bright light falling on the solar panel? Explain. I think it does but I don't know why please help explain this. Thank you

89. ## Physics

In a series circuit, the power source is 9-volt battery and three resistors. R1=7ohm R2=9ohm R3=2ohm What is the total resistance in this series circuit? What is the current? Please help I don't understand this!, Thank you

90. ## Science

Does a solar powered calculator work when there is no bright light falling on the solar panel? Explain

91. ## Science

What would happen if you moved the bar magnets further away from the armature when the St.Louis motor was running? Please help! I have been searching for r The answer for days and can't find it anywhere Thank you

92. ## Science

Why are generators not allowed in Niagara Falls? I am assuming that it has something to do with environment but I can't find the exact answer anywhere ?

93. ## Science

What three things can be done to increase the speed and power of a St.Louis electric motor?

94. ## Science

What would happen to an electric motor if the direction of the electric current in the armature did not change directions? Explain. I have read my textbook and googled it and I dint understand what would happen. Please help. Thank you

95. ## Math

Please help me with this!! The actual length of the picnic table is 180cm with legs 60cm. What is the scale factor for this diagram?

96. ## Math

Please Help!!, The dimensions of a photo of a mountain bike are 15cm by 12cm. An enlargement is to be made for a poster with dimensions 4.0m by 3.2m. What is the scale factor of the poster to the nearest tenth?

97. ## Math

Please help! 1.3-2.5xor equal to 1.3 I have been on this for hours and can't figure it out Thank you

99. ## Math

Please Help!!!!!!! 1/2+4/7p>13/10 The p is beside 4/7. I have been stuck on this all morning any help and how it was solved would be appreciated. Thanks for your time and help.