1. physics1

    A 850-kg race car can drive around an unbanked turn at a maximum speed of 61 m/s without slipping. The turn has a radius of 160 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 11000 N on the car. (a) What is the coefficient of ...
  2. physics

    A 850-kg race car can drive around an unbanked turn at a maximum speed of 61 m/s without slipping. The turn has a radius of 160 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 11000 N on the car. (a) What is the coefficient of ...
  3. physics

    A 950-kg race car can drive around an unbanked turn at a maximum speed of 46 m/s without slipping. The turn has a radius of 120 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 12000 N on the car. (a) What is the coefficient of ...
  4. physics

    Consider again the problem of a car traveling along a banked turn. Sometimes roads have a "reversed" banking angle. That is, the road is tilted "away" from the center of curvature of the road. If the coefficient of static friction between the tires and the road is μs = 0....
  5. Algebra

    An acre of land is chosen at random from each of the three states listed in the table at the right. What is the probability that all three acres will be farmland? 1. Does the choice of an acre from one state affect the choice from the other states? 2. How must you rewrite the ...
  6. MATH

    WRITE THE DECIMAL WITH DECIMAL POINT FOR EACH FRACTION. FIRST SIMPLIFY ANY FRACTION TO LOWEST TERMS SUCH AS A WHOLE #, A MIXED #, OR A SIMPLIFIED PROPER FRACTION FOR THE FOLLOWING: 49/50, 5/7,14/11, 69/100,3/2,7/8,7/12,8/9,15/20,27/25, 5/9.50/10,76/50,29/11,709/100,24/2,25/8,...
  7. math

    describe general rule for which fraction that have decimal forms that terminate and which have decimals that repeat and list prime factorizations for each: 1/2 , 1/3, 1/4, 1/5,1/6,1/7,1/8,1/9,1/10,1/11,1/12 how do I do these problems? I searched Google under the key words "...
  8. English

    What can you do to save electricity? 1. I can unplug my computer when I go to bed. 2. I can turn off the lights when I leave my room. 3. I can unplug all the things such as the computer, the printer, the speaker, etc. 4. I can unplug the electric mat when I don't use it. 5. I ...
  9. math

    Tammy has 60 markers. 15 of the markers are blue. What percentage of her markers are blue? To make 0.25 a percent, how many decimal places do you move the decimal point?
  10. MATH!

    Finding Common Demoninators in fractions. 1) 2 4 -- - --- x^2-16 x^2+x-12 2) x-3 x+3 ---- + ------ x^2+2x-8 x^2+7x+12 Can ANYONE help me with these. I cant figure out how to get the DEMONINATORS THE SAME!? Use brackets to write these kind of fractions, the text editor of this ...
  11. Physics

    An 825-kg race car can drive around an unbanked turn at a maximum speed of 59 m/s without slipping. The turn has a radius of curvature of 135 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 2700 N on the car. a) What is the ...
  12. Physics

    An 855-kg race car can drive around an unbanked turn at a maximum speed of 61 m/s without slipping. The turn has a radius of curvature of 165 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 10900 N on the car. (a) What is the ...
  13. PHYSICS

    How do I solve this? A 700-kg race car can drive around an unbanked turn at a maximum speed of 41 m/s without slipping. The turn has a radius of 190 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 12000 N on the car. (a) What is ...
  14. math

    a square has a length of 5 inches. Then it is increased by 20%. Then the same square has a width of 10 inches and it is increased by 10%. How Many Percents has the area of the square been increased By? Thanx 4 your Help
  15. Elementary Satistics

    Test the following function to determine whether it is a probability function. If it is not, then make it into a probability function. (Give your answers correct to one decimal place.) R(x) = 0.2, for x = 0, 1, 2, 3, 4 (a) List the distribution of probabilities. R(0) =0 ...
  16. AP Physics

    You go to kitchen to boil water. You pour 280 gram of water to a container, and put the container on a 293 W electric heater. Assume that all the heat from the heater is used to heat the water. The specific heat of water is 4.19 J/g ° C. As always, be accurate to 4 ...
  17. trig

    Given the radius of a wheel is 12inches and the angular speed is measured to be 3pie/4 radiant per second, find the linear speed of the piece of gum stuck to the where. Give both an exact answer. And a decimal answer rounded to 4 decimal places.
  18. simplify fractions{someone help plz}

    ok how do i simplify a fraction if there is no fraction. like for ex this is one of the problems i simplify to 1/2. my numerator is a prime number between 44 and 52 who am i? see i don't get it someone help plz There is only one prime number between 44 and 52 which is 47. 47*2...
  19. algebra

    The Environmental Protection Agency set a standard of 50 parts per billion of lead in drinking water. A new standard was set that safe water contains less than 15 parts per billion. a) write each of these rates as fractions using positive powers of ten. b) write each rate ...
  20. English

    What can we do to save water? 1. We can turn off the water when we are not using it. 2. We can turn off the water when we are brushing teeth. 3. We can use only a little water when we wash face. 4. We can use a little water when we wash hair. 5. We can take a shower every two ...
  21. Finite

    An urn contains 5 white balls and 4 black balls. If 3 balls are randomly selected ( at once, without replacement ), what is the probability that at least 1 ball is black? Give answer as a decimal number with three correct decimal places.
  22. Chemistry

    The manufacture of ethanol (CH3CH2OH) yields diethyl ether ((C2H5)2O) as a by product. the complete combustion of a 1.005 g sample of the manufactured product yielded 1.963 g of carbon dioxide. what are the weight percents of ethanol and diethyl ether in the sample?
  23. English

    1. Go straight two blocks and turn left. 2. Go straight for two blocks and turn left. [Are both okay? Which one is the better of the two?]
  24. Rounding up and down

    1. Lily moves 0.337 tonnes of sand to make a sandpit how much is this to two decimal places? 2. Lily moves 0.5 tonnes of pebbles to decorate the flower bed. If this mass has been to one decimal place, which of these could be the actual mass of pebbles? A 0.351 tonnes B. 0.562 ...
  25. Math- Percents

    Katie did 28 sit-ups on Monday and 42 on Tuesday. She did what percent more sit-ups on Tuesday than she did on Monday?
  26. Math

    The ratio of pedal turns to rear-wheel turns in first gear is 7 to 11. How many times in first gear dose the rear-wheel turn if pedals turn 140 times
  27. Physics

    Ice-hockey star Wayne Gretzky is skating at 12.7 m/s toward a defender, who in turn is skating at 5.39 m/s toward Gretzky. Gretzky’s weight is 677 N; that of the defender is 869 N. Immediately after the collision, Gretzky is moving at 2.21 m/s in his original direction. You ...
  28. Math

    What is the difference between "Give your answer correct to two decimal places." and "Round your answers to two decimal places." ?? Are they the same thing or do the answers differ?
  29. Physics

    A combination lock has a 1.2 cm -diameter knob that is part of the dial you turn to unlock the lock. To turn that knob, you grip it between your thumb and forefinger with a force of 0.62 N as you twist your wrist. Suppose the coefficient of static friction between the knob and...
  30. Physics

    A combination lock has a 1.2 cm -diameter knob that is part of the dial you turn to unlock the lock. To turn that knob, you grip it between your thumb and forefinger with a force of 0.62 N as you twist your wrist. Suppose the coefficient of static friction between the knob and...
  31. math

    How can I add a two digit number and two three digit numbers in my head. Any tricks anyone knows in connection with short-cuts to solving different math problems( such as addition, subtraction,multiplication, division, rounding, conversions, percents) in your head when you can...
  32. physics

    A train slows down at a constant rate as it rounds a sharp circular horizontal turn. Its initial speed is not known. It takes 19.8 s to slow down from 81 km/h to 37 km/h. The radius of the curve is 164 m. As the train goes around the turn, what is the magnitude of the ...
  33. Pure Mathematics

    Find the modulus and principal argument of the complex numbers giving the argument in radians either as pi or a decimal correct to 2 decimal places c) i square root 3 -2 ALL UPON -2-i square root 3
  34. Mathematics

    If a certain force accelerates an object of mass 27 Kg at 50 m/s/s, what acceleration in m/s/s would the same force produce on another object of mass 27? Enter answer to at least one decimal place to the right of the decimal point.
  35. math

    convert 25mm= cm?????????????????????????????????????????????????????????????????????????????????????im confused wat is the metric table? the answer is 2.5cm. There are 10mm in 1 cm. So you can use this equation for that: ?mm/10=?cm Here is a simplified version of the metric ...
  36. physics

    A shopper pushing a cart through a store moves 30.0 m south down one aisle, then makes a 90◦ turn and moves 11.0 m. He then makes another 90◦ turn and moves 22.0 m. What is the magnitude of the smallest possible displacement the shopper could have? You are not ...
  37. physics

    Consider again the problem of a car traveling along a banked turn. Sometimes roads have a "reversed" banking angle. That is, the road is tilted "away" from the center of curvature of the road. If the coefficient of static friction between the tires and the road is μs = 0....
  38. Math

    How do you divide fractions??? Cross multiply: For example, 4/5 divided by 6/7 would be 28/30 or 14/15. 3/4 divided by 2/3 would be 9/8 or 1 and 1/8 Actually, the word cross multiply is a misnomer. What is being done is multiplying by the reciprocal for instance 4/5 divide by ...
  39. Math

    How are decimals used in everyday life? The main use I can think of is in money. Money is expressed in decimal form. Although for everyday use, we rely on inches, feet and yards for distance, other countries use decimal measures — millimeters, centimeters, meters and ...
  40. Computer Science

    Convert the following binary numbers to decimal (6 points): 11111 101011 1101011 Convert the following decimal numbers to binary (6 points): 49 367 1023 Convert the following hex numbers to decimal (4 points): ACE 800 Convert the following decimal numbers to hex (4 points): 64...
  41. math

    simplify each expression. write your answer with positive exponents assume that all variables represent positive real numbers.find the decimal value of each expression round approximate answer to four decimal places (a^^1/2b)^1/2(ab^1/2)
  42. math

    1)how does the placement of the decimal point in the divisor and the dividend affect the decimal point in the quotient.2) when u divide a number by 0.03 ,will your quotient be larger or smaller than your dividend
  43. Math

    Choose the best description for the real number 34/5 Irrational, because it is a fraction Irrational, because it is a repeating decimal Rational, because it is a fraction Rational, because it is a terminating decimal
  44. math

    Round decimal to the nearest tenth: 65.88? Round decimal to the nearest whole number: 25.88?
  45. Math

    It is common to see mixed fractions in recipes. A recipe for pizza crust may ask for 1 1/2 cups of flour. You could measure this amount in two ways. You could fill a one-cup measuring cup with flour and a one-half cup measuring cup with flour or you could fill a half-cup ...
  46. math

    what is the least common denominator? It is the smallest number into which all of the denominators in a series of fractions can be evenly divided. For instance, is you have fractions 1/2, 2/3 and 5/6, the denominators are 2, 3 and 6, and the least common denominator is 6. The ...
  47. Math

    This math problem is somewhat tricky. It says to write a pair of decimal division expressions, so that when you estimate and compare the quotients, you get 9>3. The below is what I thought of: 18.2/2 and 30.3 divided by 10 18.2 is rounded to 18 so then 18/2=9 30.3 is ...
  48. Math

    This math problem is somewhat tricky. It says to write a pair of decimal division expressions, so that when you estimate and compare the quotients, you get 9>3. The below is what I thought of: 18.2/2 and 30.3 divided by 10 18.2 is rounded to 18 so then 18/2=9 30.3 is ...
  49. math proportions

    The remainder is a fraction (remainder/divisor). Why don't you use a calculator...for instance, 31/7 is 4 r 3, but it is easy enought to just put 31 divide by 7 in the calc. I have to solve a proportion, and the answer I come up with has a remainder. I know I need to make the ...
  50. English

    A: Go straight one block and turn left at the corner. B: I'm sorry? A:Go straight one block and turn left at the corner. It's on your right. (Can we use 'I'm sorry?' instead of 'Pardon?')
  51. math

    what is 13 3/20 in decimal form? or how do you writw 13 3/20 in decimal form?
  52. math

    Tell me whether each fraction. 1/n, is given as a terminating decimal or a repeating decimal for the given rules of n. Write t for terminating or r for repeating. It starts at 2- 10 which are t and r.
  53. Math

    Why can't the slope of a line be expressed as a decimal or a fraction? The slope of a line should be expressed as a fraction. The formula is Rise over Run. Rise is how much further up u go and run is how much further across do u go. Does that answer your quetion? My math ...
  54. Math

    Could someone answer this question so I understand it. Thanks Given the supply function p = S(x)=5(e^0.02x - 1) find the average price(in dollars) over the supply interval [31,36] only the 0.02x is ^ on the e give the answer as an integer or decimal rounded to two decimal places.
  55. Statistics

    Three cards are drawn with replacement from a standard deck. What is the probability that the first card will be a spade, the second card will be a black card, and the third card will be a queen? Write your answer as a fraction or a decimal number rounded to three decimal places.
  56. chemistry

    Sodium chloride is formed by the following reaction: NaOH + HCl --> NaCl + H2O How many grams of water are formed when 10 g of HCl is consumed? Round your answer to one decimal place, do not include units or commas. use the molar masses in your text to two decimal places.
  57. statistic

    A distribution of values is normal with a mean of 65.2 and a standard deviation of 7.4. Find P32, which is the score separating the bottom 32% from the top 68%. P32 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores ...
  58. physics

    A rope is wound round a fixed cylinder of radius r so as to make n complete turns . Show that if one end of the rope is held by a force f, a force f e^2(pi)nu must be applied to the other end to produce slipping,where u is the coeff. of friction between rope and cylinder. Find...
  59. Physics

    A rope is wound round a fixed cylinder of radius r so as to make n complete turns . Show that if one end of the rope is held by a force f, a force f e^2(pi)nu must be applied to the other end to produce slipping,where u is the coeff. of friction between rope and cylinder. Find...
  60. fractions

    5/8 - 1/4
  61. fractions

    2- 5/7
  62. fractions

    2/5 of 15=?
  63. fractions

    5/11 + 9/12=
  64. fractions

    5/6-15/
  65. fractions

    3/8 + 3/4 =
  66. Fractions

    (4y^-3/5x^-4)^2
  67. Math

    Can someone answer a question similar to a and b so I can use as an example. Consider the following binomial random variables. (a) The number of tails seen in 47 tosses of a quarter. (i) Find the mean. (Give your answer correct to one decimal place.) (ii) Find the standard ...
  68. Math

    Write 14 2/9% as a ratio. Here what I have done so far. I change 2.9 into decimal = 0.22 therefore, 14.22. I change 14.22 into decimal = 0.1422. Do I divide 0.1422 by 10,000 or 1000 to make into a simplified fraction?
  69. Math

    How can I convert mm to cm and cm to mm Look at the metric system, a part of which is shown below. The prefixes are kilo hecto deka unit--grams, liters, meters, etc. deci centi milli Stearting anywhere on the scale of prefixes above, count the number of places to get from ...
  70. Maths Help !!!!!!!!!!!!

    Alec measures the length of a line accurately. His answer, correct to 1 decimal place , is 42.7 cm. What is the greatest line of the line I did not understand the last bit can someone help with it please thanx One decimal place is 0.1 cm. The true length could be as long as 42...
  71. Math Tax Rates/Percents

    Calculate the tax for each given rate. Select the rates with tax greater than $3. $45: Tax- 7% $80: Tax- 2.9% $66: Tax- 10% $29: Tax- 11% $55: Tax- 4.5% My answers: The first one The third one The fourth one Am I correct??
  72. English

    1. When you use soap, don't turn the water on. 2. When you use a soap, don't turn the water on. (Which one is right, 'soap' or ' a soap'?)
  73. pre-calculus

    solve the following logarithmic equation. be sure to reject any value of x that is not in the domain of the original logarithmic expression. give the exact answer. then, use the calculator to obtain a decimal appromiation, correct to two decimal places, for the solution. In x=...
  74. Math

    marvin wrote the following clues to describe a multiplication sentence. the product is close in value to 10. both factors are decimal number.the product has 3 decimal places.one factor is greater than one . The other factor is less than 1. Explain how you created your answer.
  75. Math

    marvin wrote the following clues to describe a multiplication sentence. the product is close in value to 10. both factors are decimal number.the product has 3 decimal places.one factor is greater than one . The other factor is less than 1. Explain how you created your answer.
  76. Algebra 1

    Order the given numbers from least to greatest. 1. -√9, 2π, -1, 5.12(repeating decimal), -7/2 A: -7/2, -√9, -1, 5.12 (repeating decimal), 2π? Also, is -√9 a real and rational number?
  77. math. HOW DO I CONVERT A DECIMAL TO A FRACTION

    how do i convert a decimal to fraction in SIMPLEST FORM? a) -2.756 ?? Write out the 0.756 as 756/1000, then reduce it to lower terms if you can. Since both numerator and denominator are evenly divisible by 4, 756/1000 can be reduced to 189/250. The mixed number becomes -2 189/...
  78. Math Help

    Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained. (c) Find the standard error of this sampling distribution. (Give your answer correct ...
  79. stats

    A preliminary survey shows that 35% of college students smoke. In a class of 42 students, what is the probability that more than half the students smoke? Use Appendix B.1 for the z-values. (Round the z-value to 2 decimal places and the final answer to 4 decimal places.)
  80. Pre-Calculus

    For a boat to float in a tidal bay, the water must be at least 2.5 meters deep. The depth of the water around the boat, d(t), in meters, where t is measured in hours since midnight, is d(t)=5+4.6sin(0.5t) Use three decimal places in all intermediate calculations. (a) What is ...
  81. math

    when you make a circle graph how do you find the percent? like there are 33 people and only 4 likes cats 5 likes dogs 6 likes snakes 7 likes birds and 12 likes rats ... how would you find all the percents next is how do you find the degrees to make the whole circle??
  82. Economics

    Can you check my answer Consider an individual with a utility function of the form: U(x,y)=xy , and where m=1, px=2, and py=3 , where m is the individual's income or wealth, pi is the price of good i. Calculate the individual's optimal consumption bundle, (x,y) = (Blank 1,...
  83. algebra

    1/2=2/5c-3, I do not get fractions
  84. fractions

    ok the problem is -1/14+(-3/7)
  85. college al

    r/3+6/3=r/6+8/6 These are fractions with the /
  86. Math (fractions)

    2 8/9 + 1 1/2
  87. fractions

    7/13 divided by 3/4
  88. math fractions

    how do you get from 3/32 to 3/16 ?
  89. fractions

    what is 2/3 of 180/3
  90. fractions

    what is 5 3/7 x 1/11 equal
  91. Adding Fractions

    What is 3/7 + 2/5 + 1/10?
  92. Math

    55/3 as fractions
  93. math

    6/?=18/?=?/12 (fractions)
  94. Equivalent Fractions

    1/2=5/10? 3/4=12/16? 7/8=21/24? 3/7=15/35? 1/20=4/40?
  95. Equivalent Fractions

    2/5=10/25? 1/8=4/32? 6/7=36/42? 5/12=10/24? 7/10=21/30? 2/9=18/81? 3/16=9/48?
  96. mathematics

    How do you do fractions ?
  97. fractions

    what is 4 2/8 plus 5 6/7.
  98. fractions

    add 2/3 +3/8 +5/12 =
  99. Math (fractions)

    52 - (x/8) = (x/5)
  100. math fractions

    3/12+3/4x=
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