# Questions Asked onFebruary 17, 2017

1. ## Chem

The combustion of propane (C3H8) produces CO2 and H2O: C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (g) The reaction of 3.5 mol of O2 will produce ________ mol of H2O.

2. ## geometry

In ΔABC, m∠ACB = 90°, and m∠ACD = 45°. Find:AC, if CD =6√2 in. can u put answer and solution

3. ## Stat

If radio station call letters must begin with either K or W and must include either two or three additional​ letters, how many different possibilities are​ there?

please help me to revise this paragraph I’m fed up with the mistakes that our current accounting firm makes. I run a small construction company, and I don’t have time to double-check every bookkeeping entry and call the accountants a dozen times when

5. ## Physics

Hi, the following is a problem that concerns angular momentum: Modern hard drives spin very fast! The part that holds the data is a disk called the platter. Assume an aluminum platter that is 3.5in. in diameter, 1mm thick, and spinning at 5400 rpm. Treat

6. ## math

Fair Race Portfolio Template: Functions Instructions: Follow the instructions provided in the lesson. Use this template to record your work and answers. Please submit this template to the dropbox along with any other evidence you would like to provide for

7. ## geometry

Given: ∆AKL, AK = 9 m∠K = 90o m∠A = 60 ° Find: The perimeter of ∆AKL The area of ∆AKL for this one i got 81 for the perimeter side a 6 and side b is 12

8. ## math

The particular solution of the differential equation dy/dt equals y over 4 for which y(0) = 20 is y = 20e−0.25t y = 19 + e0.25t y = 20 e0.25t - my answer y = 20e4t

9. ## Physics

How much does it cost to operate a 23-W porch light for 24 h if electric energy costs 8¢/kWh?

10. ## Math

If the probability that an identified hurricane will make a direct hit on a certain stretch of beach is 0.04, what is the probability against a direct hit? So if it is against, would I take 1-.04 and that would be the answer? Thanks!

11. ## physical science

The heating elements of an electric toaster is typically made of nichrome wire (an alloy of nickel and chromium). As current passes through the wires, the wires heat up, thus toasting the toast. Estimate the overall resistance of a heating element which is

12. ## Maths

Make h subject of formula in A=πr√h²-r²

13. ## pyhsical science

A wire of uniform cross-section has a resistance of R Ω. What would be the resistance of a similar wire, made of the same material, but twice as long and of twice the diameter?

14. ## physical science

What length of German silver wire, diameter 0.050 cm, is needed to make a 28 Ωresistor, if the resistivity of German silver is 2.2 × 〖10〗^(-7) Ω m (show work)

Lead metal is added to 0.150 M Cr3+(aq). Pb(s)+2Cr3+(aq)⇌Pb2+(aq)+2Cr2+(aq). KC=3.2×10−10 What is [Pb2+] when equilibrium is established in the reaction? What is [Cr2+] when equilibrium is established in the reaction? What is [Cr3+] when equilibrium

16. ## Psychology

7. Research examining the perceptual abilities of newborn and very young infants has: a) provided little information regarding the notion that infants experience a "blooming, buzzing confusion" b) tended to contradict the idea that infants experience a

17. ## computers

13. Someone who is young, lacks funds, and really wants to gain technical skills while serving his or her nation should consider

18. ## Stoichiometry

C3H5+5O2-3CO2+4H2O

19. ## math

Vivian is going to do some yard work, but she needs to leave her house at 2:00 to go to a football game. She is going to mow the lawn for 1 hour and 15 minutes, trim some bushes for 40 minutes, and put down some mulch for 25 minutes. She will also need 30

20. ## math

One wet weekend, 0.86 inches of rain fell on Saturday. The next day, 1.52 inches of rain fell. How many inches of rain fell over the weekend? i need help I've been stuck on this for 30 minutes

21. ## math

the difference between two whole numbers is 15.one of the numbers is 1.there are two possibilities for the second number. what are they?

22. ## Esol

Long before his death, Pablo Picasso had became one of the most important artists in history... Long before-in-had became-the most which word or phrase is wrong?? had became is .thanks

23. ## english 101

which word is wrong here? The physician overhead the insurance agent discussing the patient details of a client's medical condition with a personnel friend in the hospital cafeteria. overhead-details-a client's-a personnel-in the- my answer is personnel-

24. ## math

Valerie tells Robbie, "I'm thinking of a number between 1 and 50. If I divide the number by 4, then add 5, then subtract 6, I get 6. i tried 12,24,36,48,42 its non of those

25. ## Geometry

In the △PQR, PQ = 39 in, PR = 17 in, and the altitude PN = 15 in. Find QR. can u guys show how to solve the problem(plz include answer) i got 42 by using the pythagorean theorem i am not sure if i am correct but can u check it

26. ## physical science

. The maximum allowable resistance for an underwater cable is one hundredth of an ohm per metre. If the resistivity of cooper is 1.54 × 〖10〗^(-8) Ω m, find the least diameter of a copper cable that could be used (show work)

27. ## English

"Marked the mastodon, The dinosaur, who left dried tokens Of their sojourn here" in this stanza of the poem ON THE PULSE OF MORNING what does it mean? I honestly don't know what this stanza tries to tell us

28. ## Language Arts

Hi! I just need someone to check my work please! :) Thanks! 1. Which of these is the defining characteristic of a comparison-and-contrast essay? A. Clear thesis statement. B. Organizational structure. C. Reliable sources. D. Similarities and differences

29. ## math

a 16 ounce pack of cereal cost \$4.what is the unit cost?

30. ## English

11. The _______ of an introduction to an essay establishes how you feel about your topic and the relationship with your readers. A. point of view B. focus C. topic D. tone I believe it is D) Tone.

31. ## spanish

How do you say an uncle in spanish? A:uno tio B:unos tios !@#\$%^&io** How do you say some female cousins in spanish? A:Unas primas B:Una prima C:Unos primos**

32. ## english 2

In this scene the Sergeant compares Macbeth and Banquo to â€œAs sparrows eagles, or the hare the lion.â€ Knowing that the eagle and the lion are predators and the sparrow and the hare are prey, what does Shakespeare reveal about the characters

33. ## Math

Sanjay borrowed twice the money borrowed by Alkesh at the same intrest of 12% p.a for 4 years. Ig Alkesh paid Rs 72000 less than the intrest paid by Sanjay, find the money borrowed by them

34. ## Psychology

charles has been told by the doctor he has lung cancer that is beyond treatment. His doctor tells him that he will probably die within a year. Charles suddenly starts to laugh and tells the doctor that the lab must have mixed up the test results. Chalres

35. ## Math definition

I need the meaning of the following I looked in math book and online but it gives me so many things I need the meaning of it to put in my notes. "Of" "Out of" "Multiply fractions"

36. ## algebra

Annabelle and Navene are multiplying (4275)(4372). Annabelle's Work (4275)(4372) = 4^2 + 375 + 2 = 4577 Navene's Work: (4275)(4372) = 42â‹…375â‹…2 = 46710 Is either of them correct? Explain your reasoning.

37. ## Math

If the ratio between the length and the perimeter of a rectangular plot is 1:3 then the ratio between the length and breadth of plot is?

38. ## Chemistry AP

Determine the value of x in al2(so4)3 . xh2o when 4 grams of aluminum sulfate hydrate was heated and 3.5 grams remain. (show working please)

39. ## Chem

How do peroxides differ from other group of oxide?

please help me to revise this paragraph I’m contacting you about your recent email request for technical support on your cable internet service. Part of the problem we have in tech support is trying to figure out exactly what each customer’s specific

41. ## Algebra

can you help me graph the function y=-5(3^x)please? f(x)=-5(3^x) f(x)=-5*3 f(x)=-5(9) =-15 =-45 Is this the correct way to work this problem out and how to I graph?

42. ## COLLEGE CHEMISTRY

write the net ionic equation (including phases) that corresponds to zn(no3)2 + Na2CO3--->ZnCO3+2NaNO3.

43. ## math

A vial contains 20 ml of medicine. If each dose is 1/8 of the viral, how many mL is each dose

44. ## math

Find the area of the following ellipse Use = 3.14 and round to nearest tenth. a = 7 in.; b = 9 in.

45. ## Algebra

A frame is 4.8 inches wide and 1.5 inches tall. If it is enlarged to a width of 9.6 inches, then how tall will it be?

46. ## physical science

The resistance of the ohm is very approximately that of a column of mercury 1.06 m long and of uniform cross-section of one hundred of a cm^2. Find the resistivity of mercury.(show work)

47. ## physical science

A block of carbon, 1.0 cm by 2.0 cm by 5.0 cm has a resistance of 0.80 Ω between its two smaller faces. What is the resistivity of carbon? (show work)

48. ## precalculus

how long will it take an investment of \$1,750 to double in value at 8% annual interest compounded continuously?

49. ## Chem

How many carbon atoms are contained in each of the following number of moles: (a) 1.40 mol; (b) 5.70 mol?

50. ## Chemistry

How Would You Classify The Oxides Of period3A Elemet?

51. ## College Chem

A 1000 g sample of metal with a specific heat of 0.50 J/goC is heated to 100.0oC and then placed in a 50.0 g sample of water at 20.0oC. (Hint: Specific heat of water at 20.0oC is 4.182 J/goC). What is the final temperature of the metal and the water? Write

52. ## Social Studies

I have 4 major events for my portfolio i just need one more could you help me? I already have World War II, Communist Revolution, Climate change, and Cold War. I need one more major event that happened in China.

53. ## Chemistry

The number of calories needed to raise the temperature of 5.0g of water from 25C to 55C

54. ## Math

Jan scored 17 points with four darts.what numbers did she hit?

55. ## backwards math

Valerie tells Robbie, "I'm thinking of a number between 1 and 50. If I divide the number by 4, then add 5, then subtract 6, I get 6.

56. ## science, chemistry

Lead metal is added to 0.150 M Cr3+(aq). Pb(s)+2Cr3+(aq)⇌Pb2+(aq)+2Cr2+(aq). KC=3.2×10−10 What is [Pb2+] when equilibrium is established in the reaction? What is [Cr2+] when equilibrium is established in the reaction? What is [Cr3+] when equilibrium

Suppose you wanted to produce an aqueous solution of pH = 8.70 by dissolving one of the following salts in water: NH4Cl, KHSO4, KNO2, NaNO3. Use salt KNO2. But at what molarity? Please help!! Thank you!

I just need help studying the civil war. I only want to study. Another teacher of mine found out other students were cheating on a quiz and it was omitted. I don't want to cheat I just need help studying. My grades are very good, I just want a study buddy.

59. ## English

15. Read the following opening sentence of an introductory paragraph and answer the question that follows. Should you ever find yourself in a situation in which you suspect that someone is listening in your private conversation, you might not be as

60. ## Englsih

16. As a strategy for narrowing the topic for an essay on animal medicine, Felecia imagines interviewing a veterinarian. Which method of generating ideas is she using? A. Visualizing B. Questioning C. Brainstorming D. Freewriting Im pretty sure it is B. Is

61. ## Math

Rachel answer 20 out of 25 questions correctly on her science test what percent of the questions did she answer correctly

62. ## algebra 2

. Which equation is in standard form and represents a line with slope –1 through the point (–3, 5)? a.x+y=2 b.y=-x+5 c.-x+y=5

63. ## Englsih

20. Tressa likes to generate ideas and relationships about a topic by writing a central idea in the middle of a piece of paper and then surrounding it with related ideas connected to each other and the main idea with a series of lines or arrows. This

64. ## Math- Inequalities

Riverview Farms sold a combined total of 396 watermelons and cantaloupes. they sold 126 more watermelons than cantaloupes. Use n to represent the number of cantaloupes. Which equation could be used to solve for n? Answers: n + 126 = 396 n - 126 = 396 2n -

65. ## grammar simple, compound/complex

1. We like stories which have unusual endings.

66. ## S.S

What was the name of the general panic around Communism in the United States?

67. ## physics

a bird can fly in still air at 20 miles per hour. when the wind is blowing straight from the north at 10 miles/hr. in what direction must the bird aim in order that it may fly from east to west and at what speed will it have?

68. ## Algebra

Need help trying to solve this question. Using the variables x and y determine the two equations you would need to solve for the maximum area to enclose a patio given 28 feet of fencing.

69. ## Politics

To what extent do wealthy countries, such as the US and the members of the European Union have a responsibility to do more for the refugee crisis? I have to write a short essay on this topic and I do not exactly know how to approach it. Thanks

70. ## Esol

The patient was asked to choose ate items from the menu that are his favorites. to choose-ate items-that are-his favorites- ate items is wrong here. thanks

71. ## Algebra

The charge to rent a trailer is \$20 for up to 2 hours plus \$8 per additional hour or portion of an hour. Find the cost to rent a trailer for 3.2 hours, 4 hours, and 7.6 hours.

72. ## Algebra

Simplify: (x-1/2)-(x-2/2)+(x-3/2)-...-(x-100/2)=

73. ## Math

An arithmetic sequence has a first term of 0 and a 10th term of 15. If 10 is an output of the sequence, which term number is it? Show and explain how you know you have the correct answer.

74. ## Maths

What simple interest rate is equivalent to a compound interest rate of 6% p.a. over 10 years correct to two decimal places?

75. ## Algebra 1

Which is the correct simplification of 2.2*10^4/8.8*10^9 written in scientific notation ? a) 0.25*10^5 b) 2.5*10^6 c) 0.25*10^-5 d) 2.5*10^-6 I think it is either a or c, but please help. * means multiplication sign Thank You !

76. ## Physics

State the similarities between Coloumb's law And Newton's Law Of Universal Gravitation.

77. ## Economics

You have recently learned that the company where you work is being sold for 275000\$ and income statements indicates current profit of 10000\$ and interest remain constant at 10 % what constant rates does the owner believe that profits will grow? Does this

78. ## chemistry

Q: Find pH of 0.2 M of CH3COONa + 0.1M of CH3COOH?

79. ## Math

Checking my 6th grade daughter's homework but don't know how write these rational numbers in the form a/b... 4.75 6 1/8 6.3 10 1/2

80. ## Physical sciences

One use of nitrolim

81. ## science

compute the average velocity in the following two cases: you walk 73.2m at a speed of 1.22m/s and then run 73.2m at a speed of 2.80m/s

82. ## Maths

A box weighing 20N, resting on a ramp, is kept at equilibrium by a 4-N force at an angle of 20 to the ramp, together with a frictional force of 5N, parallel to the surface of the ramp. Determine the angle of elevation of the ramp.

83. ## history

Why did the British look to colonize the region, and how did that change the lives of indigenous people?

84. ## finance

Inflation, disinflation and deflation can have significant effects on income statements and balance sheets, and therefore on the calculation of ratios. Discuss the possible impact of inflation, disinflation and deflation of the ratios, and explain the

85. ## finance

Explain in detail on how does the modified internal rate of return include concepts from both the traditional internal rate of return and the net present value methods? Use a quantitative example to present for your answer.

86. ## Social Studies

In which of the following ways did the 1920s wealth gap contribute to the start of the Great Depression. A. The wealth gap led to a decline in stock investment during the 1920s B. A concentration of wealth led to less spending across the economy C. Many of

87. ## Mathematics

A ship sails 50 km on a bearing of 70 degrees. How far North is it from its starting position.

88. ## math

dev has 120 stickers.he is going to get some more stickers,n,from his friend.write an expression using n to show how many stickers dev will have. please could you do it quickly i have to give this in after the half term and the other question i did!!!

89. ## math

a square green rug has a blue square in the center. the side length of the blue square is x inches. the width of the green band that surrounds the blue square is 6 inches.

90. ## Physics 202-help

If we have just counted 15 seconds between the lightning and thunder, how far away do we predict the center of the thunderstorm to be using the 3 second rule and What was the percent difference between the prediction and the real distance of the

What are the next three terms in the sequence? -6, 5, 16, 27,... A. 38, 49, 60 B. 37, 47, 57 C. 36, 45, 54 D. 36, 46, 57

92. ## Math

Describe transformations of f(x)=-f(2-x)

93. ## math

hi I wanna help of this question: eight multiplied by a number is three more than thirteen.

94. ## LIFE SCIENCE

WHY IS A SPOROPHYTE CALLED A SEMI-PARASITE

95. ## Ethics

Please assume that, in the process of assisted reproductive technology (ART), more human embryos were created than are needed by the donors for the purposes of their assisted reproduction. Under these circumstances, which of the following is most likely to

96. ## math

1. What number is 73% of 215? (1 point) 215 = 0.73n n = 0.73 × 215 0.73 = n × 215 215 = 73n

97. ## History

Described the nature of England's first successful colonial settlement ,Jamestown,as it envolved from a flounder,haphazard enterprise into a stable colony,complete with social and racial tensions.

98. ## ANSWE DIS

How were the Aborigine people affected when their children were forced to live with British families or in institutions?

99. ## college chemisrt

write the net ionic equation (including phases) that corresponds to zn(no3)2 + Na2CO3--->ZnCO3+2NaNO3

100. ## Vector

vector PQ is parallel to vector v [-4, -6] and has initial point P(-7,5). Determine the coordinates of Q.

101. ## Esol

She was so mad on her boyfriend, she terminated/hanged up/hung up/yelled --him when he called. hung up is correct bc is pp of hang yes guys, am i right??

102. ## math

Prove that the product of three consecutive even integer is divisible by 48l

103. ## PE

Explain why a doctor would prescribe medicine to someone who is in good health? A. your cousin got her wisdom teeth removed and has been in alot of pain. B. Your grandmother is not getting enough iron in her food and she feels tired all the time. C. (Your

asked by Help I need somebody not just anybody
104. ## Satistics

What is the probability that two 5 year old stink bugs will live to 6 years old?

105. ## math

Carol buys 1.2 pounds of chicken breast. If each pound of chicken breast cost \$3.70,how much will she pay for the chicken breast.

106. ## math

given the following equations: 2x-3y=10 3x=4y=15 which one of the regression equation x on y? show computation

107. ## math

At Yo-Yo Yogurt, the scale says that Sarah has 8 ounces of vanilla yogurt and her father's yogurt weighs 11 ounces. How many Pounds of frozen yogurt did they buy altogether? Express your answer as a mixed number

109. ## Science

A silver picture frame has a volume of 5.97 cubic centimeters and a mass of 59.7 grams

110. ## Geometry

ABCD is a parallelogram with diagonals intersecting at E. If AE = 3x + 12 and EC = 27, find the value of x.

111. ## physics

A proton travels to the east at 3.5*10⁶ m/s as it enters a region of uniform magnetic field. The magnitude of the magnetic field is 0.15 T and its direction is 30° north of east. Find the magnitude of the force on the proton at the moment it enters the

112. ## math

5 apples costs 7 kg. Let x be the cost of 7 apples, make an equation to find out the cost of 7 apples

113. ## physical science

Taking the resistivity of platinoid as 3.3 × 〖10〗^(-7) Ω m, find the resistance of 7.0 of platinoid wire of average diameter 0.14 cm.

114. ## physical science

A uniform stripe of eureka (resistivity 5-0 × 〖10〗^(-7) Ωm) has a resistance of 0.80 Ω per metre and is 0.25 cm wide. What is its thickness? (show work)

115. ## cuny

2.A lab class conducts a 1000 trial scattering probability experiment. Nine (9) target marbles were used on a 46.0 cm wide board. The marble diameter was calculated to be 1.48 cm. 1.How many hits were recorded during the experiment? 2.If the standard value

116. ## Research 1

The population that is represented by a sample is a. Everyone in the US who is the same age as the participants b. the group of people who are sufficiently similar to the sample members that the results generated by the study can be expected to generalize

117. ## Business Math and Statistical Measures

You decide to take out an ordinary loan of \$30,000 at 4%, on a 90 day note. In 45 days you decide to make a payment of \$10,000 on the loan. What is your new principal? Expaln how you got answer. How much did you pay at the end of the loan overall? How does

118. ## um

Use a calculator to find an approximate value (in radians) of the expression rounded to five decimal places, if it is defined. (If an answer is undefined, enter UNDEFINED.) tan−1(8)