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  1. math

    The PJC department of McIntyre Company shows gross sales of $730,600 for computer supplies and $934,900 for general office supplies. It has determined that computer supplies cost $534,000 and that general office supplies cost $391,400. What is the total

  2. science

    Calculate the number of ions present in 7.45 grams of potassium oxide. ( At.mass of K= 39u).

  3. Statistics

    A random sample of size 20 from a normal population will sample mean 42 and sample standard deviation of 6 . To test the hypothesis the population mean 44 at 5% level of significance , find the p-value and comment

  5. Statistics

    An unbiased die is thrown seven times. Find the probability of throwing it at least five six's.

  6. statistics

    A regression analysis between sales (in $1000) and advertising (in $100) resulted in the following least squares line: = 75 + 6x. This implies that if advertising is $800, then the predicted amount of sales (in dollars) is: A) $4875 B) $123,000 C) $487,500

  7. Math

    In a class of 50 students,30 study Biology and 25 study Economics. 15 study neither Biology nor Economics. (A) How many take both subjects? (B) How many take Biology only? (C) How many take Economics only?

  8. Physics

    If a man weighs 900 N on the earth, what would he weigh on jupiter, where acceleration due to gravity is 25.9 m/s^2?

  10. Personal Finance

    If a person deposited $50 a month for 6 years earning 8%, this would involve what type of computation? A. Present value of a series of deposits B. Future value of a single amount C. Future value of a series of deposits D. Present value of a single amount I

  11. ALGEBRA

    the arithmetic mean of two numbers exceeds their geometric mean by two. find the numbers if one is 40 less than other? please help me to answer this homework.

  12. Language arts

    Question 1 What is dialogue? the words characters say to each other in a story or drama *** the physical descriptions of characters in a story or drama the description of the setting in a story or drama the development of conflict in a story or drama

  13. Math

    The sixth term of an A.P. is 5 times the first term and the eleventh term exceeds twice the fifth term by 3 . Find the 8th term ?

  15. Physics HELP ASAP PLEASE

    A hawk is flying horizontally at 10 m/s in a straight line 200m above the ground. A mouse it was carrying is released from its grasp. The hawk continues on its path at the same speed for two seconds before attempting to retrieve its prey. To accomplis the

  16. English

    which case is represented by the underlined pronoun below? the moment the guard started to calling to us, my heart sank a) nominative case b) objective case c) possessive case i really am stuck on this question

  17. Mathematics

    A survey of 100 students produced the following statics: 32 study mathematics, 20 study physics, 45 study Biology, 15 study mathematics and biology, 7 study mathematics and physics, 10 study physics and Biology, 30 do not study any of the three subjects 1,

  18. Statistics

    Which of the following is NOT sensitive to extreme values? A) the range B) the standard deviation C) the interquartile range D) the coefficient of variation I pick B the standard deviation

  20. Calculus

    If the volume of a cube is increasing at 24 in^3/min and the surface area of the cube is increasing at 12 in^2/min, what is the length of each edge of the cube? I know that dV/dt=24 and ds/ds=12. I also know that Volume=s^3 and Surface Area=6*s^2, but what

  21. Biology Unit 8 Lesson 12 Practice (Answers)

    Biology Unit 8 Lesson 12 Practice (Answers) 1. Which important event in meiosis occurs during prophase? Answer - Crossing over 2. A DNA segment has base order TCG TAT AAC. Which copy exhibits an insertion mutation without a frameshift? Answer - TCG CCG TAT

  22. LA

    1.Which of the following is plot?(1 point) the sequence of events in a story a lesson the reader learns the author's purpose for writing a story a problem that a character must solve 2.Which word means “the time and place in which a story takes

  23. science

    The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle. carbon flux carbon dioxide carbon source carbon sink*** Bacteria add carbon to the carbon cycle by decomposing dead organisms.***

  25. Social Studies

    Fill in the blank. Every year, the Nile River flooded, depositing (blank) in the Nile Delta and allowing crops to grow in Egypt's arid climate. A. Grains B. Irrigation C. Papyrus D. Silt

  26. chemistry

    A 1.000 gram sample of the rocket fuel hydrazine (N2H4) is burned in a bomb calorimeter. The temperature rises from 24.62°C to 28.16°C. The heat capacity of the calorimeter (including the water) is 5860 J/°C. Calculate the molar heat of combustion of

  27. Chemistry

    The molar mass of the reagent, Fe(NH4)2(SO4)2.6H2O is 392.14 g/mol. Now suppose the measured mass of Fe(NH4)2(SO4)2.6H2O during the practical was 0.0218 g and this was dissolved in 50ml of deionized water that contains 1 to 2ml of concentrated sulphuric

  28. algebra

    let f(x)=-5x-4 and g(x)=6x-7. find f(x)+g(x)

  30. Trigonometry (Math)

    A ladder 42 feet long is place so that it will reach a window 30 feet high (first building) on one side of a street; if it is turned over, its foot being held in position, it will reach a window 2o5 feet high (second building) on the other side of the

  31. Plant Science

    Which of the following is not a benefit of composting? A. reduces the weight and volume of organic wastes B. Is practical for widespread agricultural use C. Kills many weed seeds and pathogens D. Encourages growth of organisms that can suppress root

  32. scince

    1. A child holds a red ball. Why does the ball look red?(1 point) a. Only red light waves are absorbed by the ball. b. All visible light waves except red are absorbed by the ball. c. Only red light waves reach the surface of the ball. d. All visible light

  33. math

    A marketing firm wants to know how many people in District 6 have tried Popeyes' and Chick-fil-A's chicken sandwiches. Of the 10,000 people in District 6, 1500 are vegetarians or vegans and have never tried either sandwich, 5000 have tried both, and the

  35. Earth Science

    1. Which provides the most direct source of energy for a hurricane?(1 point) A warm ocean water B heating of the air by the sun C friction with the ground D rising, swirling winds 2. How does upwelling affect the weather of a coastal region?(1 point) A The

  36. math

    seven times a certain number is 36 less than 10 times the same number, find the number

  37. probability

    if a tray contain 6 red socks and 4 blue socks . what is the probability that 2 socks , picked will be red

  38. Chemistry

    SO CONFUSED PLEASE HELP!!! A certain radio wave has a wavelength of 7 inches. a. convert the wavelength of this radio wave into meters. (1 meter = 39.37) b. find the frequency of this radio wave.

  40. SS

    Which of the following responsibilities are held by the federal government? Choose all that apply. (2 points) protecting national parks administering healthcare providing Social Security managing intercity traffic creating garbage collection services

  41. english

    Select the correct form of the pronoun in parentheses: 1.(Who, Whom) was the first president of the United States? 2.There are few Americans (who, whom)could not answer that question. 3.George Washington, (who, whom) is known as "the father of his

  42. mathematics

    there are 5 more girls than boys in a class. if 2 boys join the class, the ratio of girls to boys is 5:4. find the number of girls in the class.

  43. Math

    prove: tan10+tan70+tan100=tan10.tan70.tan100

  45. Health

    1. The muscular system is essential because it allows our bones to strengthen contract lengthen move 2. which muscle is attached to a bone by tendons? smooth muscle cardiac muscle skeletal muscle involuntary muscle 3. To prevent injury, each time you

  46. Chem

    How long must a constant current of 50.0 A be passed through an electrolytic cell containing aqueous Cu2+ ions to produce 4.00 moles of copper metal?

  47. trigonometry

    can you please tell me what is the sec of (-855 degrees). and how to find it. thnks

  48. Biology (Answers)

    Biology Unit 8 Lesson 11 (Answers) 1. What is the term used to describe homologous chromosomes exchanging genetic material during meiosis? Answer - Crossing-over 2. When scientists analyzed the variations of color expressed in monkey flowers, what did they

  50. Biology

    Meiosis is a type of cell division that is specific to(1 point) sperm cells. sex cells. egg cells. daughter cells. A new species of plant is found in the rainforest. How can genotyping help scientists to determine what the plant is?(1 point) Can determine

  51. biology

    1.A DNA segment has base order AGC TTA TCG. Which copy exhibits a frameshift mutation through deletion? D. AGA TTT CG 2.A DNA segment has base order CCC ATA GCT. Which copy exhibits a deletion in the first codon triplet and then a substitution mutation?

  52. 👩‍🔬science help on air masses

    hi, I hope someone here can help me... I go to Connexus school and I need an answer thanks, 1. A continental polar air mass moves into an area. Based on the characteristics of this type of air mass, which changes are most likely to happen in the area?(1

  53. science

    1. X-ray technicians wear protective gear to keep them safe from the X-rays. Why are X-rays dangerous?(1 point) They have long wavelengths that can penetrate materials, and their high energy can damage matter. They have short wavelengths that can penetrate

  55. Language Arts

    What does explicit mean?(1 point) information stated directly xxx information understood from context information that is inferred information that is somewhat vague What is an inference? (1 point) a detail the author provides in a text a conclusion based

  56. Language Arts

    1. Which of the following best describes text evidence?(1 point) A. ideas or conclusions about details that are hinted at but not stated B. information or details from a text that support an idea or analysis*** C. data on the amount of time it takes to

  57. Math

    In the multiplication example at the right, A, B, and H represent different digits. B A 7 === HAA What is the sum of A, B, and H?

  58. science

    1.Which car has the greatest efficiency?(1 point) a 900 kg car that travels 15 km per liter of fuel a 900 kg car that travels 20 km per liter of fuel a 1,200 kg car that travels 15 km per liter of fuel a 1,200 kg car that travels 20 km per liter of fuel

  60. history

    Which of the following is evidence that ancient Greece was polytheistic? A. Zeus was the only god. B. Athena was the only goddess. C. The Greeks believed in one god that ruled over nature and people. D. Ancient Greece had many gods and goddesses.

  61. math

    What is five and three hundred fifty two thousandths in standered form?

  62. Algebra

    If 7 cartons of apple juice and 2 cartons of grapefruit juice cost £6.15 and 5 cartons of apple juice and 8 cartons of gratefruit juice cost £9.19 calculate the cost of 2 cartons of apple juice and 5 grapefruit juice Using Algebraic calculation

  63. math

    in a class of 50 students ,30 study biology and 25 study economics .15 study neither biology nor economics a.how many take both subjects? b.how many take only biology? c.Ho many take economics only?

  65. Math

    A produce store has stacked apples in the shape of a triangular pyrimid. The first layer on top contains a single apple. The second layer contains 3 apples arranged in a triangle. The third layer contains 1+2+3=6 apples. Using algebra, convert your

  66. Math

    Estimate the sum or diffrence. Use the bench marks 0, 1/2, 2 2/15 + 13/30 = Answers 0 1/2 1

  67. Calculus

    At what point does the curve have maximum curvature? y = 5 ln(x)

  68. physics

    A motor of mass30kg moving with a velocity of 10m/s by application of brakes is brought to rest in a distance of 25m .find the average force

  70. Physics

    find the first, second and third derivative of : sin3x^2?

  71. Geometry

    1 - Complete this statement: A polygon with all sides the same length is said to be___. a. regular b. equilateral *** c. equiangular d. convex 2- A road sign is in the shape of a regular heptagon. What is the measure of each angle on the sign? round to the

  72. math

    1. which proportion can be used to determine what number is 15% of 30 15/30 = x/100 15/100 = x/30 15/100 = 30/x 30/100 = 15/x 2. which equation can be used to determine what number n is 40% of 64? (40)(64) = n 40 divided by 64= n 0.40(64)= n 64n = 0.40

  73. History

    Why did Southerners resist the increased tariff in 1828, arguing it should be nullified? A. It was not helpful to any section of the country. B. It benefited one section of the country at the expense of another. C. It increased the market for cotton. D. It

  75. Social Studies

    What was the purpose of Washington’s Neutrality Proclamation? A. He wanted to remain neutral when defining his policy toward trade with Spain. B. He wanted to spell out his policy for imposing taxes on imports and exports. ** C. He wanted to make it

  76. Health

    A _________ is a substance the body needs in order to grow and function properly. A. metabolism B. diet C. nutrient D. calorie I think it is calorie

  77. Differential equations

    Suppose a cup of coffee is at 100 degrees Celsius at time t = 0, it is at 70 degrees at t = 10 minutes, and it is at 50 degrees at t = 20 minutes. Compute the ambient temperature. So in the book I was given Newton's Heat equation. dT/dt=k(A-T) where T is

  78. Health. Check my answers please

    Can someone please check my answers. 1. Violence resulting in the death of another person is called A. Bullying B. Homicide C. Conflict D. 2. Using the excitement of violence to keep video games users playing their games is an example of which risk factor?

  80. General Mathematics

    A jeepney ride costs P8.00 for the first 4 kilometers, and each additional integer kilometers adds P1.50 to the fare. Use a piecewise function to represent the jeepney fare in terms of the distance (d) in kilometers.

  81. Science

    A body of mass 10kg is moving with velocity 10m/sec.The work done to stop the body is : A) 500J B)-500J C)1000J D)-1000J How to calculate the answer?

  82. math

    Two ship P and Q left a port R at the same time.Q sailed on a bearing of 150 while P sailed on the north side of Q.After a distance of 8km and 10km by P and Q respectively,their dirtance part was 12km.find the bearing of P from R.

  83. Physical Ed

    Could you help me with this please? 1. Telling a child that he won't amount to anything in life is a form of A. neglect B. emotional abuse (My answer) c. physical abuse d. sexual abuse

  85. Math

    Write a list of steps that are needed to find the measure of angle B. A measures 72 degrees and C measures 113. What does B measure?! Please help!

  86. math

    The internal angles of a triangle in the ratio 3:5:7. Find the degree measures of the angles. Also find measure of its greatest exterior angle.Give complete calculation.

  87. Social Studies Lesson 1 Unit 7

    1:Which of the following was a significant innovation of Lowell Mills that increased productivity? A:Combining spinning and weaving in the same factory B:Seperating spinning and weaving to different factories C:Employing mainly formal African-American

  88. History

    why did southerners resist the increased tariff in 1828

  90. Social Studies

    What happened to some native americans during the jackson presidency? They were to leave their homeland and move westward. They allied themselves with slaves to seel equal protection under the law. They were given large land grants on their native soil.

  91. English literature

    Symbolism of story the white knight by eric nicol

  92. SOCIAL STUDIES (CHECK ANSWERS) ASAP

    1. Which of the following responsibilities are held by the legislative, rather than the executive branch? Select two answers. A) writing and voting on new laws**** B) providing social programs to citizens C) selecting new judges for federal courts D)

  93. math

    1. QTR and ______ are complementary. QTS * RTS PTN QT 2. QTN and _____ are supplementary. QTS QTP * RTS PTR 5. PTN is adjacent to _____. QTR PTS RTS NTS *

  95. science

    An electric lamp rated at 48w,12-v supply. Calculate the current flowing in the lamp and the resistance

  96. Math Pre-Cal (Exponential Functions)

    A house was valued at $110,000 in the year 1985. The value appreciated to $145,000 by the year 2005. -What was the annual growth rate between 1985 and 2005? Assume that the house value continues to grow by the same percentage. -What did the value equal in

  97. math

    Which of the following is an example of a variable expense? A rent B groceries C wages D car insurance cant figure this out! help?

  98. Health

    1)Which of the following food is high in protein? A. apple B. Carrot C. Chicken*** D. Pasta 2)Of the five food groups, which should be consumed in the smallest amount? A. Dairy**** B. Fruits C. Grains D. Protein 3)Which food would be considered to be a

  100. Art

    What characteristic should be considered the most when responding to a cubist painting ? A. Use of geometric shapes to create an image B. Use of shading and detail in an image C. Use of realistic portrayal of the subject D. Use of appropriate proportions

  101. Geo, Math lit, Life science, history

    Which career will I be able to do if I study Geography, Mathematical literacy, Life sciences, History, English, setswana and life orientation

  102. Health

    the chemical process by which your body breaks down the nutrients in foods to release energy for the cells in your body describes. A.calories*** B.cholesterol C.metabolism D.nutrition ----is a type of complex carbohydrate that does not get broken down or

  103. Math

    find the third term in the expansion of (3x-y)^6

  105. Check my answers SS

    Which of the following state program areas consumes the largest part of the executive budget? (1 point) human services education *** natural resources transportation 2. Which state department is responsible for mental health-related issues and welfare? (1

  106. math/help please

    Question: Kenny reads 5/8 page in 2/3 minutes. This is unit rates. Please help!

  107. biology

    Explain how both nucleic acids and proteins are polymers.Be sure to describe the monomers that make up the polymers.

  108. AP Calc

    The picture to the right shows the Ben Franklin Bridge which stretches across the Delaware River joining Pennsylvania and New Jersey. The center span of the bridge is about 4200 feet long. The suspension cables hang in parabolic arcs from towers 750 feet

  110. Math

    For questions 1-2 , simplify each expression. 1.9! a.45 b.362,880 c.265,456 d.125,936 2.25P3 a.12,755 b.14,290 c.13,800 d.18,250

  111. chemistry

    Calculate the concentration in % (m/m) of a solution containing 20.5 g of LiF dissolved in 340.0 g of H2O. a.1.14% (m/m) b.5.69% (m/m) c.6.03% (m/m) d.6.42% (m/m)

  112. science

    1 A ……... is a rectangular array of numbers that are enclosed within a bracket . horizontal set vertical matrix 2 When the numbers of rows is equal to the numbers of columns equal to 'n'. Where m=n. Then is called….. a square matrix a column

  113. math

    1.Which of the following numbers are equivalent to 20%? CHOOSE ALL THAT APPLY.!! A. 0.002 B. 1/4 C. 0.20(I PICK THIS) D. 1/5(I PICK THIS) 2.which of the following numbers are equivalent to 35%?CHOOSE ALL THAT APPLY !! A. 7/20 B. 6/20 C. 3.5 D. 0.35 (I KNOW

  115. physics

    the resultant force due to action of four forces is f1 which is 100N, along the negative y-axis.three of the force are 250N,320 above the x-axis,100N,60 above the x-axis, 200N, 140 above the x-axis find the fourth force

  116. physics

    at what distance would repulisve force between two electrons have a magnitude of 2.00 n between two protons ? 2=kq1q2/r^2 r^2 = 9.0 x10^9 x (1.6 x 10^-19)^2 So, what is the R, on my answer from, this is 1.07 x10^-14m, however, I cannot get this, can you

  117. analytical chemistry

    In an experiment for determining water hardness, 75.00 ml of a water sample required 13.03 ml of an EDTA solution that is 0.009242 M. What is the ppm CaCO3 in this sample? Could someone please tell me if this is correct? Total hardness, ppm CaCO3 = mg

  118. Geometry

    ABCD is a rhombus. Explain why triangle ABC is congruent to triangle CDA.

  120. Operations Management 10th edition

    The three station work cell illustrated in Figure S7.7, has a product that must go through one of the two machines at station 1 (they are parallel) before proceeding to station 2. Station 1-Machine A-Capacity: 20 units/hr Station 2-Capacity: 5 units/

  121. Geometry

    Two straight pipes intersect under a circular garden and intercept non-adjacent arcs that measure 34 degrees and 108 degrees. What is the measure of the acute vertical angles formed where the two pipes intersect?

  122. communication

    Which of the following is NOT true of nonverbal communication? A.It is continuous. B.It uses a single channel. C.It usually can be controlled. D. It is unstructured and follows few rules. I think it is A. But not to sure

  123. math

    A surveyor has a unit pace of 0.9 m/pace. (a) she counts 37 paces while walking From point C to point D. What is the distance between C to D? (b) how many paces should the same surveyor. count to lay out a line roughly 122m long?

  125. physics

    the speed of a bullet of mass is 40gram is 216km/h what is the kinetic energy in joule