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 test/708419: 5/2 Write each improper fraction as a mixed number 1 solutions Answer 436104 by solver91311(17077)   on 2013-01-30 17:29:44 (Show Source): You can put this solution on YOUR website! Use integer division -- the kind where your answer is a quotient and a remainder. Divide the numerator by the denominator. The quotient is the whole number part of the mixed number. The remainder is the numerator of the fraction part of the mixed number, and the divisor is the denominator. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Linear-equations/708411: 5y+7x=10=0 Please help :c1 solutions Answer 436100 by solver91311(17077)   on 2013-01-30 16:59:17 (Show Source): You can put this solution on YOUR website! What help do you want? John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Equations/708410: What is 8-(4-n)=18 if n doesn't equal anything?1 solutions Answer 436099 by solver91311(17077)   on 2013-01-30 16:58:33 (Show Source): You can put this solution on YOUR website! What do you mean "n doesn't equal anything"? Of course it equals something. It equals that value that makes your mathematical statement true. Add -8 to both sides, then add 4 to both sides. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Average/708404: If you have a 64% average in math, and you get a 40% on the exam. And the exam is worth 20% will you fail the course? 1 solutions Answer 436098 by solver91311(17077)   on 2013-01-30 16:56:38 (Show Source): You can put this solution on YOUR website! Your score will be 80% of 64% plus 20% of 40%. Do the arithmetic. Whether that is a failing grade or not depends on your school policy or your instructor's interpretation. If it were my class where 75% is passing, I would have just told you not to bother taking the last exam because you were going to fail anyway. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Inequalities/708402: Write the slope intercept form of the equation of each line: 5y+7x+10=0 1 solutions Answer 436097 by solver91311(17077)   on 2013-01-30 16:47:27 (Show Source): You can put this solution on YOUR website! Solve for in terms of Add to both sides. Multiply both sides by John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 test/708401: A lot has an area of 3,000 sq ft. Its length is 35 ft greater than its width. What are the dimensions of the lot?1 solutions Answer 436096 by solver91311(17077)   on 2013-01-30 16:44:52 (Show Source): You can put this solution on YOUR website! Since area is length times width: Put the quadratic in standard form and solve for , then calculate John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 logarithm/708399: How is log 7x +log 7y -log7z as a single logarithm?1 solutions Answer 436095 by solver91311(17077)   on 2013-01-30 16:41:58 (Show Source): You can put this solution on YOUR website! The sum of the logs is the log of the product and the difference of the logs is the log of the quotient: Note: You still need to simplify the log argument. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 test/708398: Solve the following: (x - 12) (x + 3) = 0 1 solutions Answer 436094 by solver91311(17077)   on 2013-01-30 16:37:15 (Show Source): You can put this solution on YOUR website! Use the zero product rule. So either or . Solve the two equations for the two values of in the solution set. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Sequences-and-series/708394: five times a number, decreased by 58, is negative 23. find the number? 58 minus negative 23= 81. then 81 divide by 5=16.21 solutions Answer 436092 by solver91311(17077)   on 2013-01-30 16:33:41 (Show Source): You can put this solution on YOUR website! Add 58 to both sides, then divide by 5. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Rational-functions/708367: Please help me to understand the process of answering this question. I would really like to master this concept! :) Thank you in advance. Let f(x) = x + 5 and g(x) = x^2. Find (g ° f) (4) 1 solutions Answer 436090 by solver91311(17077)   on 2013-01-30 16:31:00 (Show Source): You can put this solution on YOUR website! If is a function defined by , then if you are asked to evaluate at some number, say, 2, which is to say evaluate , you simply have to substitute 2 for every instance of in the definition of . That is: Likewise, and Doing a composite, is nothing more than evaluating the first function at the value of the second function, that is For your problem, you want composite , which is just of of , or . Whether or not your instructor expects you to expand the squared binomial is a matter between s/he and you. In any case, you still need to evaluate John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Quadratic_Equations/708365: I am lost. How do I solve this? 3a / 4a-20 + 9a / 6a-301 solutions Answer 436088 by solver91311(17077)   on 2013-01-30 15:46:55 (Show Source): You can put this solution on YOUR website! You can't "solve" it. You cannot solve something that doesn't contain a relationship operator, like equals, greater than, or less than. You can simplify it, but you have to repost your problem using parentheses liberally so that it is completely unambiguous as to which terms are in your numerators and which are in your denominators. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Probability-and-statistics/708312: Please show the work. Thank you Problem 60 Refer to the Real Estate data, which report information on homes sold in the Phoenix, Arizona area last year. a. Create a probability distribution for the number of bedrooms. Compute the mean and the standard deviation of this distribution. b. Create a probability distribution for the number of bathrooms. Compute the mean and the standard deviation of this distribution. Data:Price Bedrooms Size Pool Distance Township Garage Baths 263.1 4 2300 1 17 5 1 2 182.4 4 2100 0 19 4 0 2 242.1 3 2300 0 12 3 0 2 213.6 2 2200 0 16 2 0 2.5 139.9 2 2100 0 28 1 0 1.5 245.4 2 2100 1 12 1 1 2 327.2 6 2500 0 15 3 1 2 271.8 2 2100 0 9 2 1 2.5 221.1 3 2300 1 18 1 0 1.5 266.6 4 2400 0 13 4 1 2 292.4 4 2100 0 14 3 1 2 209.0 2 1700 0 8 4 1 1.5 270.8 6 2500 0 7 4 1 2 246.1 4 2100 0 18 3 1 2 194.4 2 2300 0 11 3 0 2 281.3 3 2100 0 16 2 1 2 172.7 4 2200 1 16 3 0 2 207.5 5 2300 1 21 4 0 2.5 198.9 3 2200 1 10 4 1 2 209.3 6 1900 1 15 4 1 2 252.3 4 2600 0 8 4 1 2 192.9 4 1900 1 14 2 1 2.5 209.3 5 2100 0 20 5 0 1.5 345.3 8 2600 0 9 4 1 2 326.3 6 2100 0 11 5 1 3 173.1 2 2200 1 21 5 1 1.5 187.0 2 1900 0 26 4 0 2 257.2 2 2100 0 9 4 1 2 233.0 3 2200 0 14 3 1 1.5 180.4 2 2000 0 11 5 0 2 234.0 2 1700 0 19 3 1 2 207.1 2 2000 0 11 5 1 2 247.7 5 2400 0 16 2 1 2 166.2 3 2000 1 16 2 1 2 177.1 2 1900 0 10 5 1 2 182.7 4 2000 1 14 4 0 2.5 216.0 4 2300 0 19 2 0 2 312.1 6 2600 0 7 5 1 2.5 199.8 3 2100 0 19 3 1 2 273.2 5 2200 0 16 2 1 3 206.0 3 2100 1 9 3 0 1.5 232.2 3 1900 1 16 1 1 1.5 198.3 4 2100 1 19 1 1 1.5 205.1 3 2000 1 20 4 0 2 175.6 4 2300 1 24 4 1 2 307.8 3 2400 1 21 2 1 3 269.2 5 2200 0 8 5 1 3 224.8 3 2200 0 17 1 1 2.5 171.6 3 2000 1 16 4 0 2 216.8 3 2200 0 15 1 1 2 192.6 6 2200 1 14 1 0 2 236.4 5 2200 0 20 3 1 2 172.4 3 2200 0 23 3 0 2 251.4 3 1900 0 12 2 1 2 246.0 6 2300 0 7 3 1 3 147.4 6 1700 1 12 1 0 2 176.0 4 2200 0 15 1 1 2 228.4 3 2300 0 17 5 1 1.5 166.5 3 1600 1 19 3 0 2.5 189.4 4 2200 0 24 1 1 2 312.1 7 2400 0 13 3 1 3 289.8 6 2000 0 21 3 1 3 269.9 5 2200 1 11 4 1 2.5 154.3 2 2000 0 13 2 0 2 222.1 2 2100 0 9 5 1 2 209.7 5 2200 1 13 2 1 2 190.9 3 2200 1 18 3 1 2 254.3 4 2500 1 15 3 1 2 207.5 3 2100 1 10 2 0 2 209.7 4 2200 1 19 2 1 2 294.0 2 2100 0 13 2 1 2.5 176.3 2 2000 1 17 3 0 2 294.3 7 2400 0 8 4 1 2 224.0 3 1900 1 6 1 1 2 125.0 2 1900 0 18 4 0 1.5 236.8 4 2600 1 17 5 1 2 164.1 4 2300 0 19 4 0 2 217.8 3 2500 0 12 3 0 2 192.2 2 2400 0 16 2 0 2.5 125.9 2 2400 0 28 1 0 1.5 220.9 2 2300 1 12 1 1 2 294.5 6 2700 0 15 3 1 2 244.6 2 2300 0 9 2 1 2.5 199.0 3 2500 1 18 1 0 1.5 240.0 4 2600 0 13 4 1 2 263.2 4 2300 0 14 3 1 2 188.1 2 1900 0 8 4 1 1.5 243.7 6 2700 0 7 4 1 2 221.5 4 2300 0 18 3 1 2 175.0 2 2500 0 11 3 0 2 253.2 3 2300 0 16 2 1 2 155.4 4 2400 1 16 3 0 2 186.7 5 2500 1 21 4 0 2.5 179.0 3 2400 1 10 4 1 2 188.3 6 2100 1 15 4 1 2 227.1 4 2900 0 8 4 1 2 173.6 4 2100 1 14 2 1 2.5 188.3 5 2300 0 20 5 0 1.5 310.8 8 2900 0 9 4 1 2 293.7 6 2400 0 11 5 1 3 179.0 3 2400 0 8 4 1 2 188.3 6 2100 1 14 2 1 2.5 227.1 4 2900 0 20 5 0 1.5 173.6 4 2100 0 9 4 1 2 188.3 5 2300 0 11 5 1 3 1 solutions Answer 436087 by solver91311(17077)   on 2013-01-30 15:35:49 (Show Source): You can put this solution on YOUR website! Use where is the th data element of data elements to find the mean. Just add up all of the numbers in the column under Bedrooms (or Bathrooms for part (b)), and then divide by the number of pieces of data. I used because you are dealing with a sample (mnay more than 105 homes were sold in the Phoeniz, AZ area in a year.). If you are considering this set of data to represent the entire population, use instead of . and then you have to decide whether you are calculating the standard deviation for this sample as if it were the entire population or you are using this sample to to estimate the standard deviation of the entire population. In the first case calculate the population standard deviation using or in the second case calculate the sample standard deviation using: You can do your own arithmetic. Have fun. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Travel_Word_Problems/708281: A projectile is launched from the ground with an initial velocity of V0 feet per second. Neglecting air resistance, its height in feet per seconds after launch is given by s = -16t^2 +V0t. Find the time(s) that the projectile will (a) reach a height of 240ft and (b) return to the ground when V0= 128 feet per second.1 solutions Answer 436042 by solver91311(17077)   on 2013-01-30 12:13:10 (Show Source): You can put this solution on YOUR website! (a) Set the function equal to 240. Substitute your given value of and then solve the quadratic. The equation will have two zeros, one representing the time the projectile reaches 240 feet on the way up, and the other representing the time the projectile passes 240 feet again on the way back down. (b) Same as part (a) except you set the function equal to the height of the ground, i.e. zero. Your two zeros will be zero and some positive number. The zero root represents the instant of launch, and the other is the time of return to ground. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Numbers_Word_Problems/708283: the sum of one-third of a number, one- fourth of the number, and one-eighth of a number is thirty four find the number1 solutions Answer 436039 by solver91311(17077)   on 2013-01-30 12:03:08 (Show Source): You can put this solution on YOUR website! First recognize that there is no difference between and . Then Solve for Hints: The LCD is 24, and 34 divided by 17 is 2. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 test/708267: i have a test on fractions and i am stuck on my 15th question could you please help me and show me how we how i can show my workings out, the question is - 4/5 - 7/10 + 1/2 =1 solutions Answer 436038 by solver91311(17077)   on 2013-01-30 11:58:28 (Show Source): You can put this solution on YOUR website! Multiply the first fraction by 1 in the form of . Multiply the third fraction by 1 in the form of . The result will be the sum of three fractions all of which have the same denominator. Add the numerators and reduce the result to lowest terms. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Graphs/708269: Please help me answer this: What is the equation of the horizontal line through (5,8)1 solutions Answer 436028 by solver91311(17077)   on 2013-01-30 11:37:13 (Show Source): You can put this solution on YOUR website! The equation of any horizontal line is where is the -coordinate of any point contained in the line. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Travel_Word_Problems/708270: A woman traveled 2,438 miles in 19 hours 20 minutes. Find the average speed of her flight in miles per hour.1 solutions Answer 436026 by solver91311(17077)   on 2013-01-30 11:35:23 (Show Source): You can put this solution on YOUR website! Speed is distance divided by time. Hint: 20 minutes is 1/3 of an hour. So divide 2438 by 58/3. Round to the nearest whole mile per hour because the least precise measurement given was to the nearest whole mile. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Square-cubic-other-roots/706048: The following terms √3x + √9x + √27x + ... form a pattern that continues until the sixth is found. 1. Compute the sum of all six terms...which I have done. 2. By investigating the pattern further, develop a system that will enable you to find the sum of 12 such terms without actually writing them. I have written out the twelve terms and I cannot figure out a system. I would love a hint or clue to help me solve this. 1 solutions Answer 434965 by solver91311(17077)   on 2013-01-24 22:23:55 (Show Source): You can put this solution on YOUR website! This is the most interesting problem I've seen on this site in a long time. The first thing to do is to factor out of all of the terms, so that just becomes a factor in the answer. Then you have a sum of radicals. Note that each of the radicands is one power of 3 larger than the previous. The pattern becomes evident when you replace the radical with a fractional exponent. and so on... So you could write the first six terms thus: Now if you rearrange the terms so that the rational terms are in one group and the irrational terms are in another group: Then factor the radical out of the first grouping (putting the back in): The sum becomes trivial So for 12 terms: But then we get to make it even simpler because from which we can derive So your 12 term sum becomes John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Systems-of-equations/706041: You plan to mail surveys to different households. A box of 50 envelopes cost $3.50, and a postage stamp cost$.44. How much will it cost you to mail 40 surveys.1 solutions Answer 434950 by solver91311(17077)   on 2013-01-24 21:29:33 (Show Source): You can put this solution on YOUR website!Why did you submit the same problem twice?
 Systems-of-equations/706043: You plan to mail surveys to different households. A box of 50 envelopes cost $3.50, and a postage stamp cost$.44. How much will it cost you to mail 400 surveys.1 solutions Answer 434949 by solver91311(17077)   on 2013-01-24 21:28:10 (Show Source): You can put this solution on YOUR website!Why did you submit the same problem twice?
 sets-and-operations/706013: Write the compound statement in words. Let p: Joe has an iPad. q: Brie has a MacBook; ~p1 solutions Answer 434923 by solver91311(17077)   on 2013-01-24 20:31:41 (Show Source): You can put this solution on YOUR website! Joe does not have an iPad John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Functions/706017: please help me identify the domain of this function: g(x)=3x/x^2-361 solutions Answer 434921 by solver91311(17077)   on 2013-01-24 20:28:36 (Show Source): You can put this solution on YOUR website! The domain of a rational function is the set of real numbers excluding any value that makes the denominator equal to zero. Set the denominator polynomial equal to zero and solve for the two roots. The domain of the original function is the set of real numbers excluding those to roots. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Triangles/706010: Triangle DEF is isosceles. Angle D measures 20 degrees. what is the measure of angle E in degrees? 1 solutions Answer 434918 by solver91311(17077)   on 2013-01-24 20:25:29 (Show Source): You can put this solution on YOUR website! Depends. You don't bother to mention which segment, DE, EF, or FD is the base, nor do you say which angle, D, E, or F is the vertex angle. So you either have a vertex angle D that measures 20 degrees and two other angles that are equal in measure and the sum of all three is 180 degrees, or angle E has to be congruent to angle D. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 Quadratic-relations-and-conic-sections/706005: how can i find the focus/foci and vertex/vertices x^2-4y^2-2x+16y=20 this is how far i have gotten, but i am not sure if it is right so far x^2-4y^2-2x+16y=20 (x^2-2x+1)-4(y^2+4y+4)=20+1+4 (x-1)^2/25-4(y+4)^2/25=25/25 (x-1)^2/25-4(y+4)^2/25=1 please help. thank you.1 solutions Answer 434916 by solver91311(17077)   on 2013-01-24 20:14:24 (Show Source): You can put this solution on YOUR website! Note the -4 coefficient OUTSIDE the parentheses so the 1st degree y term has to have a coefficient of -4 (-4 times -4 is +16), then in order to complete the square inside the parentheses you need a +4, and +4 times -4 is -16. What you add to the left must be added to the right, hence the -16 in the RHS. From there: So and Can you take it from there? John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 test/706001: (X+3)squared-5(x+3)+4=01 solutions Answer 434909 by solver91311(17077)   on 2013-01-24 19:59:17 (Show Source): You can put this solution on YOUR website! X and x are not the same thing. You didn't follow the instructions to describe the entire problem. What do you want to do with this? You didn't follow the instructions to describe what you have done so far. We put as much work into answering your questions as you put into asking them. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it
 percentage/705966: 1. Solve the following system of equations using Gaussian elimination method. If there are no solutions, type "N" for both x, y and z. If there are infinitely many solutions, type "z" for z, and expressions in terms of z for x and y. 0x+7y+0z=-1 5x−5y+6z=-1 −5x+1y+3z=6 ..? 2. Phyllis invested 47000 dollars, a portion earning a simple interest rate of 4 percent per year and the rest earning a rate of 6 percent per year. After one year the total interest earned on these investments was 2620 dollars. How much money did she invest at each rate? 3.A movie theater charges $10 for adults and$ 7 for seniors. On a particular day when 347 people paid an admission, the total receipts were $2518. Round your answers to the nearest integers.. How many who paid were adults? .. How many who paid were seniors..?1 solutions Answer 434905 by solver91311(17077) on 2013-01-24 19:48:47 (Show Source): You can put this solution on YOUR website!  0 7 0 1 5 -5 6 -1 -5 1 3 6 Swap row 1 and row 2 5 -5 6 -1 0 7 0 1 -5 1 3 6 R2/7 to R2 5 -5 6 -1 0 1 0 1/7 -5 1 3 6 R1 + R3 to R3 5 -5 6 -1 0 1 0 1/7 0 -4 9 5 R1/5 to R1 1 -1 1 1/5 - 1/5 0 1 0 1/7 0 -4 9 5 R1 + R2 to R1 1 0 1 1/5 - 2/35 0 1 0 1/7 0 -4 9 5 4R2 + R3 to R3 1 0 1 1/5 - 2/35 0 1 0 1/7 0 0 9 5 4/7 R3/9 to R3 1 0 1 1/5 - 2/35 0 1 0 1/7 0 0 1 13/21 -6/5*R3 + R1 to R1 1 0 0 - 4/5 0 1 0 1/7 0 0 1 13/21  John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it  Length-and-distance/705960: Germaine walks at the rate of 10 feet every five seconds while Nolan walks at the rate of 15 feet every five seconds. If Germaine has a head start of 25 feet, after how many seconds will they be at the same spot?1 solutions Answer 434893 by solver91311(17077) on 2013-01-24 19:10:30 (Show Source): You can put this solution on YOUR website! The difference in their speeds is 5 feet per 5 seconds, or 1 foot per second. How long will it take Nolan to cover the 25 foot head start at 1 foot per second? John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it  absolute-value/705965: what is X if 10 minus 2, times the absolute value of 5 minus X, is 31 solutions Answer 434892 by solver91311(17077) on 2013-01-24 19:07:26 (Show Source): You can put this solution on YOUR website! Presuming you mean: Add -10 to both sides. Multiply both sides by Then or Solve both for . Check both answers. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it  test/705964: -4/5=2b b=?1 solutions Answer 434888 by solver91311(17077) on 2013-01-24 18:57:55 (Show Source): You can put this solution on YOUR website! Multiply both sides by John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it  Inequalities/705963: How do you do x^2 + 5x +6 = 0 & b^2 - 7b - 18 = 0 1 solutions Answer 434887 by solver91311(17077) on 2013-01-24 18:56:55 (Show Source): You can put this solution on YOUR website! How do you do what to them? John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it  Age_Word_Problems/705962: You can buy 5 small pizzas for the same price as 3 small pizzas and ten$1 drinks. How much does each pizza cost?1 solutions Answer 434886 by solver91311(17077)   on 2013-01-24 18:55:45 (Show Source): You can put this solution on YOUR website! 2 of the pizzas must be the same value as the 10 drinks. John Egw to Beta kai to Sigma My calculator said it, I believe it, that settles it