Mae

Newest questions and responses by Mae
1. Physics

A boat heads due North for 3.00 km to reach a red buoy. It then changes direction and heads in a direction of 30.0 degrees South of East for a distance of 4.66 km to reach a blue buoy. The boat changes direction again and heads to a green buoy which is

2. Trigo

Jill walks 10 miles at 40 degrees south of west. How far west of her starting point does she end up?

3. Math

5/8 + 1 7/9 +3. Simplify the expression A) 4 29/72 B) 4 12/17 C) 5 7/18 D) 5 29/72

4. Math

The ratio of the width to the length of a rectangle is 1:3. Which of the following ratios represents a rectangle with…… a)5:7 b) 6:9 c) 33:100 d) 21:63

5. TEAS ENGLISH

The words over and done may be combined to form a compound word. What is the proper way to create this compound word? A. Overdone B. Doneover C. done-over D. over-done

6. Chemistry

Zinc, copper, lead, and mercury ions are toxic to Atlantic salmon at concentrations of 6.42 × 10–2 mM, 7.16 × 10–3 mM, 0.965 mM, and 5.00 × 10–2 mM, respectively. What are the corresponding concentrations in milligrams per liter? Concentration of

7. Chemistry

An solution of antifreeze is prepared by mixing 23.0mL of ethylene glycol (d = 1.11 g/mL;molar mass = 62.07 g/mol) with 50.0 mL H2O (d = 1.00 g/mL) at 25°C. If the density of the antifreeze solution is 1.07 g/mL, what is its molaritY?

8. Chemistry

If the density of ocean water at a depth of 1.00 x 10^4 m is 1.071 g/mL and if 27.0 g of water at that depth contains 197 mg of potassium chloride, what is the molarity of potassium chloride in the sample?

9. College Math (Introductory Analysis)

Prove: If a sequence a_n diverges to infinity, then (a_N)^2 diverges to infinity as well.

10. math

A pyramid V-ABCD is cut from a cube of edge 12 in.,as shown in the figure. The vertex V is the midpoint of an upper edge of the cube. Compute the lateral surface of the pyramid.

11. Statistics

in a population where 45%of voters prefer candidate A. an organization conducts a poll of 5 voters.Find the probability that 2 of the 5 voters will prefer Candidate.

12. Statistics

a manufacturing machine has a 8% defect rate. if 5 items are chosen at random, what is the probability that at least one will have a defect

13. Statistics

if a seed is planted, it has a 70% chance of growing into a healthy plant.if 6 seeds are planted, what is the probability that exactly 1 doesn't grow?

14. Math

I need help on this problem. I've been stuck on it for 4 days now. Use a net to find the surface area of the prism. 2,296 m2 1,148 m2 757 m2 1,232 m2 the numbers are 25m, 7m, 19m, 7m, 24m I've tried 24x25x7 25x7x5 24x7x5 19x5x25 19x7x24 and other

15. Algebra

Katie invested a total of \$7,000, part at 2% simple interest, and part at 3% simple interest. At the end of 1 year, the investments earned, \$184.00 interest. How much was invested at each rate?

16. math

Round the decimal to the nearest hundredths place 1.724

17. science

parasitic worm infestation is hypothesized to be damaging to the host. However scientists have recently discovered that worm infestation of certain autoimmune disorders. in which of the following ways should the hypothesized to be modified , given the new

18. Math

Lani, Sue, and Jill begin jogging around a quarter-mile track at the same time. Lani takes 2 minutes to complete each lap, Sue takes 3 minutes and Jill takes 4 minutes. How long will they have been jogging when they first meet up again at the point where

19. math

the population of a town increased from 30000 to 40000. what is the percent of increase

20. math

Please help me to answer.this with solution i need your help please! Thanks! 1) 5/18+2/9= 2) 3 (12/17)= 3) (2/7)÷(5/8)= 4) 3/7-5/9= 5) 12÷2/3= 6) 7/15÷2/3= 7) 3/5-10= 8) 4/15+7/9= 9) 12/21(-3)= 10) (2/5)(5/18)=

21. social studies

Which factor would have the least effect upon the population distribution in Mexico or the United States? (1) infant mortality rate (2) national debt (3) migration rate (4) birth rate (5) death rate help !!

22. social studies

Which of the following is a likely cause of the shape of the population graph of Mexico? (1) Mexico has adopted China's "one family-one child" program. (2) About 60 percent of Mexico's industrial workers live in or near Mexico City. (3) Much of the land in

23. Chemistry

Enough concentrated sulfuric acid solution was added to provide 3 grams of sulfuric acid which dissolved i4 grams of pure fluorapatite. How much excess sulfuric acid was used? (report answer in grams of H2SO4

24. Chemistry

Phosphorus fertilizers are derived from phosphate rocks, called florapatite, Ca5(PO4)3F. Fluorapatite is insoluble in water, so it must first be dissolved using excess sulfuric acid to form water soluble calcium dihydrogen phosphate Ca(H2PO4)2. If a

25. Chemistry

a) If you have 5 dinitrogen monoxide molecules, how many nitrogen atoms do you have? b) If I had 5 moles of dinitrogen monoxide molecules, how many individual nitrogen atoms would I have? I think the answer for A is 6 nitrogen atoms. but I have no idea on

Find the distance a ball covered in a specific time if it was dropped from the top of a building that 324 meter high. Assume if the gravitational acceleration is 10 meters per second squared. I filled everything except the question marks in the table.

27. Math

You borrow \$2,000 for a period of 4 years. You are charged simple interest at a rate of 3%. How much will you repay at the end of 4 years? So, do I draw out the formula I = P x R x T. I = Interest - unknown P = Principal - 2,000 R = Rate - 3%, 3 / 100 =

28. english

writing punctuation: The personnel director Ms Smith hired three new typists two case managers A) The personnel director, Ms. Smith, hired three typists and two case managers. B) The personnel director, Ms. Smith, hired three typists, and two case

29. math

Is Increasing the Venture Orientation of a Firm always a Good Thing? Or are there Circumstances or Environments in which the further pursuit of Opportunities can diminish Firm Performance?

30. PSYCH

One feature of taste aversion learning that is NOT found in any other type of learning is: A. learning with delays of several hours. B. very slow extinction. C. Both a and b D. Neither a nor b MY ANSWER IS D. IS THAT RIGHT?

31. PSYCH

Jane suffers from Panic Disorder. What Axis of the DSM would this disorder present on? A. Axis II B. Axis III C. Axis I D. Axis IV is A the right answer?

32. PSYCH

Birth is a major adjustment for the infant as he/she leaves the familiar environment of the womb and takes his/her place in the world. Naming a baby is a part of this birth process. Being born and naming a child is considered: A. means of access. B. check

33. PSYCH

In which theory is it of utmost importance that an infant develops a relationship with at least one primary caregiver for both social and emotional development to happen properly? A. Attachment theory B. Culture C. Persistence model D. Erikson’s Stages

34. PSYCH

In algebra class Stan was a low performer, however, to build his self-esteem he approached the new student in class and informed the student he had the highest score in the class and to contact him if the student needed assistance. What type of systematic

35. PSYCH

Two common confounding variables that must be controlled in a nonequivalent control-group design are: A. selection and regression to the mean. B. selection and maturation. C. maturation and regression to the mean. D. sequence effects and maturation. MY

36. PSYCH

Doyen & colleagues (2012) found that __________ effects were the reason that participants changed their walking speed. A. experimenter B. subject C. both subject and experimenter D. neither subject nor experimenter MY ANSWER IS C

37. PSYCH

Milfont (2009) found that desirable responding did not impact the self-reporting of environmental attitudes and behavior. What methodological issues might decrease the credibility of this claim? A. Ecological behavior was self-reported instead of measuring

38. PSYCH

In a study of the development of noun usage, an investigator is interested in the relationship of the number of nouns in a child's vocabulary to the number of adults in the household. This type of project is: A. correlational in nature. B. experimental in

39. PSYCH

In the latter part of the 1880s, psychiatrists and neurologists tended to believe that madness was caused by __________. Less severe syndromes like hysteria were __________.   A. biological troubles in the brain, also caused by biological troubles in the

40. HISTOTY

Match the following statement to the person: One should begin with careful observations of facts and experiments on nature, and then should form general conclusions only when they were fully justified. A. Plato B. Bacon C. Descartes D. Aristotle MY ANSWER

41. Algebra

Solve for h: 3/7 h = 9

42. Algebra

Solve for t: 15 3/4 = t + 4 5/8

43. Algebra

Solve for h: h + 3/8 = - 1/4

44. Algebra

A set of encyclopedia has 27 volumes. each volume is 1 3/8 inches thick. If the volumes are placed side by side, how long will the set be?

45. Algebra

Find the product Simplify if possible: 12y/13 * 11/24

46. Algebra

Simplify 3/7 - 4/m

47. Algebra

Anita owns a beauty supply store. Every two weeks she receives a supply of shampoo. Every four weeks she receives a carton of nail polishes. Every eight weeks she receives a box of combs, and every twelve weeks she receives a box of hair dyes. If Anita

48. Algebra

Find the least common multiple: 2b^2 and 12c^3

49. Algebra

Mary thinks that a quarter-pound hamburger is heavier than a 5 oz hamburger. Explain why she is incorrect.

50. Algebra

Paul needs 3 1/4 yards of fabric to make one tablecloth. How many tablecloths can he make from 20 1/2 yards of fabric. 67 7 My answer 6 66

51. Algebra

Order 3.21 x 10, 42 x 10^4, and 0.11 x 10^10 from least to greatest

52. Algebra

Write 9.79 x 10^5 in standard notation.

53. Algebra

Write 0.000000474 in scientific notation.

54. Algebra

Write 806,000,000 in scientific notation

55. Algebra

x^7 * y^3 * x^8 * y^2 can you help me find the answer?

56. Algebra

Evaluate. Write in simplest form. 6-b/3a a=10 a=-9 My answer is 2 or 5...I'm not sure

57. Algebra

Find the GCF of 14abc and 28a^2 b^2 c^3 How do I answer this??

58. Algebra

What is the prime factorization of 180? My answer 2 x 2 x 3 x 3 x 5 Am I right?

59. Algebra

A microscope can magnify the specimen 10^4 times. How many is that? My answer 10 x 10 x 10 x 10 = 10,000 times Am I right?

60. Algebra

You have two types of bread, three types of meat, and four types of cheese. How many different sandwiches can you make if each sandwich has one type of bread, one type of meat, and one type of cheese? 9 sandwiches *My answer* 16 sandwiches 24 sandwiches 27

61. Algebra

Which fraction is not equivalent to 6/10? 3/5 EQUIVELANT 12/20 EQUIVELANT -6/-10 - 6/10 I know the first two are equivalent to 6/10 but I'm not sure about the last two.

62. Math

Which number is NOT divisible by 9?

63. Spanish!

Please help me translate the following in Spanish!: 1. I speak to you. 2. She gives her mom a gift. And 3. The doctor gives you a prescription.

65. math 8th!

point A (-2,3) lies on a line with a slope of 2. Describe how to find two points on the line on either side of A.

66. Algebra

Translate this phrase into algebraic expression--Three more than the product of 24 and Mabel's height with m to represent Mabels height

67. Math

Sorry again but I am terrible at math and I need help help writing this prob into an equation: 50 pounds of potato salad cost \$39.50 and 50 pounds of bean salad cost \$23.50. What was the difference in costs of the salads?

68. math

I need help writing an equation for this problem: for the school barbeque, room 107 bought 50 pounds of hot dogs for \$69.50. How much did the hot dogs cost per pound?

69. PHYSICS

A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity.

70. Math algebra

You plan a party and spend \$26 on decorations. Each of the tables will have 8 party favors and 8 individual flowers. The flowers cost \$2.50 each. Which equation can you use to find the cost of each party favor? *please make an equation*

71. chemistry

Find the a)partial pressure of ethylene oxide and b)the total gas pressure, after 30 hours in a reaction vessel at 415C if the initial pressure of ethylene oxide is 782mmHg. k= 2.05x 10^-4 t(1/2)=56.3 Part A) I converted hours to seconds, and used the

72. Math-simplify

Can someone help me simplify this (2x/15)^2 / (.15-x/15)(.2-x/15) I end up getting this, 4x^2/x^2-17x+.003

73. math

what is the answer to this problem _3 125x6y3

74. Significant figures

78.08/100 x 748= How many significant figures should I use for the answer? 584.0 or 584?

75. Chemistry

There are two flask, one filled with a)ice bath, and b)boiling water. Ice bath: 1.00 L O^2(g) at STP Boiling water: 1.00 O^2(g) If we want the pressure to remain at 1.00bar when the O^2(g) is heated to 373K, what mass of O^2 must we release from the flask?

76. chemistry

If a gas is made up of 3 parts hydrogen and 2 parts nitrogen...how much percentage of hydrogen is the gas made up of? The answer says 60%, but I don't understand how the came up with the answer

77. significant figures- chemistry

I'm having trouble understanding significant figures. If a problem is requires two equations to finish, which of the original measurements do I use to figure out the significant figure? For ex. 3.001+4.32= 7.321. Then I use this answer for a different

78. pharmacy compding

how much active ingredient is needed to compound 18 lollipops if the formula is 5% active ingredient, 168g sugar,60ml Karo syrup (weighs 84g),60ml water. each lollipop should have 5% active ingredient

79. Math

I really need help with this question please Break-even equation. Fill in the blank. The following table contains selected data concerning several outpatient clinics in the new Ambulatory Care Center at Hope University Hospital. Fill in the missing

80. Math

a bus travels 240 kilometers at 60 kph and then returns at 40 kph.. what is the average speed in kilometers per hour for the round trip?

81. chemistry

how much of 0.1 M NaOH is needed to neutralize 5mL of 0.1 M of HCL to a ph 7(color on the ph scale)...Thank you

82. science

5 mL O.1 M HCL...How much 0.1 M NaOH is needed to neutralize the acid? Thank you

83. geometry

if ab = 8 sc = 6 ec = 12 what is value of dc? it follows the (ac)(bc) =(ec) (dc) theorem tangents secants... thank you...do you have to factor?

84. science

32g of KCI OR KCIO3 IN 100ML OF WATER, AT WHAT TEMP WOULD IT BECOME SATURATED.. WHAT IF IT IS 37g? Thank you

85. government

five purposes of govt...protection,order,conflict resolution,econ. stabilty and public services....provide example of govt. that fulfills each purpose... I really don't about conflict resolution and econ. stability...Thank you

86. math

How will I know the equation of a sequence if it is not arithmetic nor geometric sequence?

87. english

german policy on free education

88. Algebra

How do I solve 14x/5 + 7x = 23

89. trogonometry

A black bordering Sapphire St. is a right triangle. You start walking around the block, taking 125 paces on sapphire st. and 102 paces on Diamond st. a.) At what angle do Diamond and Sapphire Street Intersect ?

90. Healthcare

You are the manager of a variable hospital department and you just received your monthly budget results that state your salaries were higher and your supplies were lower than budgeted.

91. novel let the circle be unbroken

describe cassie logan based on events of chapter 1...her traits and flaws.. what flaws can you immediately detect..how does she feel about family and friends..cite examples from text

92. geometry

graph ABCD...is it a square...A(-3,1) B(1,4)C(4,0)D(0,-3) JUSTIFY YOUR ANSWER AND SHOW WORK..THANK YOU

93. geometry

graph ABCD...is it a square...A(-3,1) B(1,4)C(4,0)D(0,-3) JUSTIFY YOUR ANSWER AND SHOW WORK..THANK YOU

94. Math

Determine whether a regular decagon has reflection symmetry and/or rotational symmetry. If it has reflection symmetry, state the number of axes of symmetry. If it has rotation symmetry, state the angle of rotation. Explain how you determined your answers

95. physics

a metal crate with a mass of 500 kg is pushed across a metal floor for 5 minutes.50N is applied horizontally.box does not move, extra 50 N is applied.after 2 minutes then box moves 4meters,how much work is done

96. trig

A plane is flying 12,000 feet horizontally from a tall, vertical cliff. The angle of elevation from the plane to the top of the cliff is 45degrees, while the angle of depression from the plane to a point on the cliff at elevation 8000 feet is 14degrees.

what is mass

98. Chemistry

How many atoms are present in 1.25g of molecular hydrogen? I know the way to do it..but for molar mass, would it be 2.02g or 1.00g?

solve: 2/y+2 = 3/y=-y/y+2