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  1. math

    Sean has 8-inch pieces of toy train track and Ruth has 18-inches of train track. How many of each piece would each child need to build tracks that are equal in length?

  2. 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

  3. English

    Members of the press were required to show their credentials before being granted added to the media room. One woman was turned away because she could not find the badge issued to her by the newspaper she worked for. Which phrase from the sentences

  5. science

    enzymes are important because they _____

  6. Physics

    Two identical cars (m = 1350 kg) are traveling at the same speed of 28.1 m/s. They are moving in the directions shown in the drawing. What is the magnitude of the total momentum of the two cars?

  7. Social studies 7

    Marcus invented a new bicycle helmet light that increases safety without being too heavy. He tried selling it spring festivals but it was not getting much interest. The next month he decided t focus only on selling at gatherings of bike enthusiasts and a

  8. science

    1. How is the equator similar to the prime meridian? (1 point) Both the equator and prime meridian are lines that divide Earth into the Northern and Southern hemispheres. Both the equator and the prime meridian are imaginary base lines from which locations

  10. Physics

    A ball is thrown straight downward with a speed of 0.50 m/s from a height of 4.0 meters. What is the speed of the ball 0.70 seconds after it is released? GIVEN: Vi = 0.50 m/s Vf = ? d = 4 m t = 0.70 s

  11. Physics

    rock is thrown downward from the top of a cliff with an initial speed of 12 m/s, disregarding air resistance if the rock hits the ground after 2.0 s, what is the height of the cliff

  12. Science

    1.If an animal is an ectotherm, It has? A. A skeleton on the outside of its body B. A skeleton on the inside of its body C. A body that regulates its own internal temperature D. A body that does not produce much internal heat

  13. Chemistry

    Sea water contains an average of 1.08 x 10^3 ppm of Na+ ion. Calculate the molar concentration of Na+ given that the average density of sea water is 1.02 g/ml.

  15. Honors Chemistry

    Due to the screening effect, the 3s electrons of magnesium (Mg) feel an effective nuclear charge (Zeff) of: 1. +1 2. +2 3. −2 4. +12 5. +4

  16. physics

    The speed of propagation of a sound wave in air at 27 degrees Celsius is about 350 m/s. Calculate, for comparison, v_rms for nitrogen (N2) molecules at this temperature. The molar mass of nitrogen is 28.0 g/mol.

  17. Chemistry Suspension Examples...

    I need 10 examples of household suspensions for science class tomorrow. I got 10 solutions, 10 colloids, and 10 solvents...but can't figure out 10 suspensions! Help! http://www.elmhurst.edu/~chm/vchembook/106Amixture.html Suspensions have much larger

  18. History

    Han society was bound together by the imperial bureaucracy and ______ . . . Under the Han, the salt and iron industries were________ . . . . Which of these would be an example of lacquerware? A. a painted box with a protective coating B. a scroll covered

  20. Math

    A parking garage charges a base rate of 3.50 for up to 2 hours, and an hourly rate for each additional hours. The sign below gives the prices for up to 5 hours of parking. Parking rates: 2hrs. $3.50 3hrs. $9.00 4hrs. $14.50 5hrs. $20 Which linear equations

  21. Math

    Expressed to the correct number of significant figures, the sum of two masses is 445.2 grams. WHich two masses produce this answer? 1) 210.10 g+235.100g 2)210.100 g + 235.10 g 3) 210.1 g + 235.1 g 4) 210.10 g+ 235.10 g I think the answer is 2 but I don't

  22. Weird question science

    which of these body systems performs the function of getting rid of chemical waste? a. immune b.nervous c.skeletal d.uninary d?

  23. Education technology

    Which of the following is not an example of plagiarism? Cheating•• Stealing Copying without providing sources Quoting with source Correct me

  25. Chem HELP!!

    Which one of the following sets of quantum numbers can correctly represent a 3p orbital? a) (n = 3 l = 1, ml = 2) b)(n = 1, l = 3, ml = 3) c) (n = 3, l = 2, ml = 1) d) (n = 3, l = 1, ml = -1) e) (n = 3, l = 0, ml = 1)

  26. Physics

    A soccer ball kicked on a level field has an initial vertical velocity component of 15 meters per second. Assuming the ball lands at the same height from which it was kicked, what is the total time the ball is in the air? [Neglect friction.]

  27. Walquist

    Geometry question. a Math riddle. What does a cat need to play baseball?

  28. Language art

    here are the answers for L.A. Author’s Purpose Quick Check its 1.objective 2.the author's purpose 3.chosen words, the main idea 4.Connotation can provide words with meanings that are positive, negative, or neutral. this will give you 4/4 👌👍😎😉

  30. mathematics

    The geometric mean between the first two terms in a geometric sequence is 32. if the third term is 4 find the first term

  31. Health & PE

    mention ten branches of physical and health education

  32. social studies

    How has the caste system changed in India and Pakistan? A. It faded from existence as societies became less religious. B. Caste-based discrimination has been outlawed. C. Women can now belong to the highest castes.*** D. There are now only three castes

  33. PE

    a(n) _______ is a substance that helps in the chemical digestion of food A epiglottis B Enzyme C Gallbladder D peristalsis

  35. Physics

    A 70.0-kg astronaut pushes to the left on a spacecraft with a force in "gravity-free" space. The spacecraft has a total mass of 1.0 × 104 kg. During the push, the astronaut accelerates to the right with an acceleration of 0.36 m/s2. Determine the

  36. math

    In an interbarangay basketball league the team from barangay Culiat has won 12 out of 25 games a winning percentage of 48% .We have seen that they need to win 8 games consecutively to raise their percentage to at least 60%. What will be their winning

  37. Algebra 1

    suppose y varies directly with x and y = 14 when x = -4 what is the value of y when x = -6

  38. math

    Please help!pam is mixing 3 1/5 batches of paint.if one batch calls for 2 3/4 tablespoons of detergent to add to the tempura powder,how many tablespoons of detergent will pam need?

  40. chemistry

    What is the nuclear symbol for the radioactive isotope of copper with a mass number of 60?

  41. physics

    a sports car traveling at 27.8 m/s slows at a constant rate to a stop in 8.00 s. What is the displacement of the sports car in this time interval

  42. Language Arts 7

    11. In 2-3 sentences, explain what context clues help you identify the meaning of the word vegetation in the first sentence. 12. A wildfire is an uncontrolled fire that burns in wildland vegetation, often in rural areas. Wildfires can burn in forests,

  43. Language Arts

    1. Hydr- means “water” in Greek. what is the most likely meaning of hydrotherapy?(1 point) A. a scientific compound containing water B. a large pool of water C. a source of water D. a type of therapy that uses water******* 2. The crowd was large, so

  45. language arts for me

    Which choice shows the correct organization of an essay? conclusion, introduction, body introduction, body, conclusion**** conclusion, body, introduction body, introduction, conclusion Which topic should appear in a conclusion? an introduction to your main

  46. chemistry

    which of the following is a correct set of quantum numbers for an electron in a 5f

  47. math

    Translate the phrase "nine more than two times a number" into an algebraic expression

  48. math

    Given line segment AB on Line L, and a collinear point M, which must be true? a. M is on line L **** b. M is between A and B c. M is on line segment AB d. M is the midpoint of A and B

  50. Math

    A rectangular garden in a backyard has an area of (3x^2+5x-6) square meters. It's width is (x+2) meters A. Find the length of the garden B. You decided to partition the garden into two or more smaller congruent gardens.Design a possible model and include

  51. 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.

  52. Calculus

    A rectangular page is to contain 8 square inches of print. The margins at the top and bottom of the page are to be 2 inches wide. The margins on each side are to be 1 inch wide. Find the dimensions of the page that will minimize the amount of paper used.

  53. Pre calc

    The general function P(t)= 640ekt is used to model a dying bird population, where Po = 640 is the initial population and t is time measured in days. Suppose the bird population was reduced to one quarter of its initial size after 9 days. How long will it

  55. English

    1. In the Red Badge of Courage, for what exploit was the youth praised by the colonel? for carrying the flag for getting the enemy's flag for rallying the men to fight*** 2. In The Red Badge of Courage, the description of Wilson changes from what to what?

  56. INFO & COMM TECH

    1. What is the grooming process as it relates to online predators? A. the process by which online predators lure in minors to get close enough to hurt them. B. the process by which online predators are trained. C. the process by which a cyberbully becomes

  57. math answers??? correct me :/

    1. Rename 7/20 as a percent. A. 35% ⇐ ANS B. 14% C. 30% D. 28% 2. Rename 0.245 as a percent. A. 245% B. 24.5% ⇐ ANS C. 2.45% D. 25% 3. Rename 28% as a decimal ad fraction in its simplest form. A. 0.28 and 28/100 ⇐ ANS B. 0.2 and 2/100 C. 0.28 and

  58. Art

    Bourgeois by Alfred Jacob Miller Look at the following illustration of an early american settler. it would likely inspire a writer to create a story based on all of the following historic information except A) the clothing worn by the individuals B) the

  60. 7th grade math

    1. Evan withdrew a total of $160 from an ATM machine over a 4-day period. He withdrew the same amount of money each day. a. Write an expression to represent the total amount that Evan's account changed each day. Ans: 4d b. What integer represents the total

  61. science

    A soccer player applies an average force of 180 N during a kick. The kick accelerates a 0.45 kg soccer ball from rest to a speed of 18 m/s. What is the impulse imparted to the ball? What is the collision time?

  62. Maths

    A box contains pns and pencils in the ratio 6 : 5. There are 24 pens. How many pencils are there?

  63. CHemistry

    SO2(g) + H2O(l)= H2SO(l) What mass of sulfur dioxide is needed to prepare 36.86 g of H2SO3(l)

  65. Education technologoy

    Charles sends Julia text messages every morning insulting her appearance and threatening to hurt her. He writes unflattering description of her on blog and on his own personal website a. identity theft b. cyberstalking c. online arguing d. cyberbullying

  66. Science

    A population of oak trees growing in a region in Canada experiences a change in climate to much colder temperatures and much drier conditions than they have had for many decades. What determines how this population will change in the next few years? traits

  67. Science~

    Please! Please! Please help me really quick! Pleae check my answers! 1. A population of oak trees growing in a region in Canada experiences a change in climate to much colder temperatures and much drier conditions than they have had for many decades. What

  68. ALGERBRA,PLEASE HELP!!!!!!

    Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (1 point) A) (–2, 4) and (6, 6) B) (2, 4) and (6, 6) C)(–2, 4) and (6, –6) D)(2, –1) and (–3, 3) 2. Given a scale factor

  70. Chemistry

    the density of H2 gas in a rigid container is 0.117 g/L at 55 C. what is the pressure of hydrogen in the flask if it is heated to 125 C?

  71. 7th grade math Ms.Sue please

    1. Which of these numbers can be classified as both real and irrational? 5.858585858 63.4 square root 21 square root 36 2. Which is both a real number and an integer? 23 1 over 4 square root 27 3.402538 3. Which of these numbers is classified as both real

  72. English Beowulf

    Can you tell me if I explained Beowulf as a boastful glory seeker. Beowulf wanted to be noticed as a strong brave man who can kill monsters stronger than him. Beowulf boasted how he drove five great giants into chains. They have seen his strength and

  73. chem 2

    if 10.0g of NaF and 20.0 g of HF are dissolved in water to make one liter of solution, what will the pH be? For HF, Ka=6.8x10-4.

  75. Physics

    A driver of a car going 90.0km/h suddenly sees the lights of a barrier 40.0 metres ahead. It takes the driver 0.75 seconds before she applies the brakes, and the average acceleration during braking is -10.0 m/s squared. Does the car hit the barrier?SHow

  76. chemistry

    How much heat is evolved when 1258 g of water condenses to a liquid at 100.°C?

  77. Calculus

    Consider all right circular cylinders for which the sum of the height and circumference is 30 centimeters. What is the radius of one with maximum volume. Work: V=(pi)r^2(h) h= V/(pi)(r^2) 2(pi)r + h=30 V=(pi)r^2(h) V'=2(pi)(r)h+2pi(r^2)=0

  78. Geometry

    Each face of a pyramid is an isosceles triangle wish a 62° vertex angle? What are the meeasures of the base angle?

  80. Language Arts

    Why is it important to evaluate word choice when reading an informational text?(1 point) Words or phrases might be carefully chosen to highlight the qualifications a writer has in a certain field. The reader can use the words or phrases highlighted in a

  81. ELA

    Use the sentence to answer the question. Members of the press were required to show their credentials before being granted access to the media room. One woman was turned away because she could not find the badge issued to her by the newspaper she worked

  82. Mathematics

    A computer shop charges P15.00 in every hour of computer rental.represent your computer rental fee (R) using the function R (t) where t is the number of hours you spent on the computer

  83. Language arts

    ***** = my answer Please check my work 1.Why would two different authors who are writing about the same topic represent it in two different ways?. Because one authors point of view is subjective and the other's is objective. Because the two authors have to

  85. LA

    What is the purpose of a hook in an introductory paragraph? A.to establish the tone of the essay B.to grab the interest of the reader***** C.to state the perspective of the writer D.to introduce the main topic of the essay

  86. Language Arts

    What questions can you ask to help you analyze and compare different texts? Select two answers.(1 point) What is the author's name? How is the text organized? How many sentences are used? How long will it take to read the text? Does the author use direct

  87. Mathematics

    The denominator of a fraction is one more than thrice the numerator.the difference is between the reciprocal of the fraction and the fraction is 15/4.find the fraction.

  88. physics

    Light is incident on a polarizer analyser combination with 37o between their axes. The percent of incident light transmitted is:

  90. math

    a square has an area of 144 in.2 what is the length of a side of the square (hint: a=s2) A.12 in. B.13 in. C.72 in. D.14 in. i need help!!!!

  91. Math

    a ball tossed to a height of 4 meters rebounds 40% of its previous height. the total distance travelled by the ball by the time it comes to rest is?

  92. US History

    Use the quotation to answer the question. It is said that the quality of recent immigration is undesirable. The time is quite within recent memory when the same thing was said of immigrants who, with their descendants, are now numbered among our best

  93. Science

    you test a substance using red litmus paper and the paper turns blue. based on theses results, is the substance acidic or basic? A The substance is acidic. B The substance is basic C The substance is pH neutral.**** D The results do not indicate anything.

  95. Math

    Use the distributive property to write an equivalent expression 2f + 10 answers: a. f(2 +10) b. 2(f + 5) c. 2(f + 10)

  96. Science

    What happens in the Phloem A.water Moves up from roots B.food moves down from leaves C.food moves up from roots D.water moves down to roots

  97. Social Studies

    1.) Which of the following factors has helped improve Bangladesh’s economy in recent years? A. new tariffs B. microlending*** C. shifting to a command economy D. increasing focus on agriculture 2.) Which of these South Asian countries is an Islamic

  98. science

    A 70-kg man is walking at a speed of 2.0 m/s. What is his kinetic energy (energy is measured in Joules)?

  100. Social studies, help

    How did advancements during the Gupta period transform mathematics? A. They invented algebra.**** B. They created the concepts of square numbers and square roots. C. They developed a decimal system with a numeral for zero. D. They made progress in

  101. physics

    A person who normally weighs 700 N is riding in a rather swift elevator that is moving at a constant speed of 9.8 m/s. If this person is standing on a bathroom scale inside the elevator, what would the scale read?

  102. Arts

    Why did Egyptians built pyramids? Where are pyramid important to them? What was inside? How are they built?

  103. math

    Edith wants to cut pieces of ribbon 1/3 meter long from a piece of 5/6 meter.how many pieces can be cut?

  105. Math

    1. Classify the triangle according to side length and angle measurement 2. Classify the triangle according to side length and angle 3. Classify the triangle with side lengths 4,4, and 4 4. Classify the triangle with the measuring 69,42, and 68, 5.

  106. english please

    Based on the characterization of the Wife of Bath, what do you think was Chaucer’s view of women and women’s roles?

  107. Math

    Due to the plate tectonics, the summit of Mount Everest moves about 4.5 X 10 ^-3 meter northeastwar in one year. About how many meters does the summit of Mount Everest move in 11 years? 4.09 x 10 ^-3 4.95 x 10 ^-3 4.09 x 10 ^-2 4.95 x 10 ^-2 Can you please

  108. math

    1. Find the length of the hypotenuse of a right triangle with legs of 9 cm and 12 cm A. 8 cm B. 21 cm C. 15 cm D. 225 cm the length of the hypotenuse of a right triangle with legs of 13 cm the length of one leg is 5 cm find the length of the other leg A.

  110. Social Studies

    Which of the following statements best summarizes the information provided on the chart? (1 point) The Articles of Confederation gave too much power to the individual state governments. Most of the Articles of Confederation’s weaknesses related to the

  111. csn

    In a box there are four prizes that are worth $30, three prizes worth $300, and one prize worth $1000. A player will reach into the box and draw one of the prizes at random. What is the fair price for this game?

  112. Pre-Calculus

    a ferris wheel is elevated 1 meter above ground. When car reaches the highest point of the Ferris wheel, it's altitude from ground level is 31 metres. How far away from the center, horizontally, is the car when it is at an altitude of 25 meters?

  113. SS

    Many employees of a local restaurant suddenly quit and seek other opportunities. What is the most likely explanation for the large number of employees quitting? a developing price war a protest action by the union decrease in positive incentives to work

  115. math

    Find the area between the loops of the limacon r=2(1+2cosθ)

  116. chemi

    The heat of vaporization of benzene, C6H6, is 30.7 kJ/mol at its boiling point of 80.1 °C. How much energy in the form of heat is required to vaporize 134 g benzene at its boiling point?

  117. math need help ASAP

    use benchmark to estimate the sum 3/5 + 3/17

  118. Government

    What is a definition of citizenship? -having been born in a country -being a full and equal member of a nation -having pledged to respect and support a governments's values****** -fulfilling all the responsibilities and having all the rights of living in a

  120. math

    An arch in the form of a semi ellipse has a span of 10 meters and a central height of 4 m. Find the heights of the arch at a point of 3 meters from the semi minor axis.

  121. science (correct please)

    (1) Which of the following is an ectothermic vertebrate A) butterfly B) lizard C) eagle D) dog ~~~~~~~~~~~~~~~~~~~~~~~~~ My answer: B ~~~~~~~~~~~~~~~~~~~~~~~~~ (2) which of the following animals is an invertebrate? A) goldfish B) horse C) turtle D)

  122. Science-The Solar System

    What are two major differences in the composition of the inner and outer planets? I know that the inner planets are small, hard, and rocky, and the outer planets are large and gaseous. What is another difference?

  123. Science

    1.) when might preserved remains of an entire organism form? A.) when sediment buries the hard part of an organism B.) when an event such as a quick burial or freezing preserves an entire organism ******* C.) when minerals replace parts of an organism D.)

  125. Technology

    Which of the following information is most important to include in a timeline? a. title, subtitle, images, captions, arrows b. dates in order, titles, arrows, lines c. title, description of timeline, dates in order, events•• d. time periods, lines,