Algebra ->  Tutoring on algebra.com -> See tutors' answers!      Log On

 Tutoring Home For Students Tools for Tutors Our Tutors Register Recently Solved
 By Tutor
| By Problem Number |

Tutor:

# Recent problems solved by 'ewatrrr'

Jump to solutions: 0..29 , 30..59 , 60..89 , 90..119 , 120..149 , 150..179 , 180..209 , 210..239 , 240..269 , 270..299 , 300..329 , 330..359 , 360..389 , 390..419 , 420..449 , 450..479 , 480..509 , 510..539 , 540..569 , 570..599 , 600..629 , 630..659 , 660..689 , 690..719 , 720..749 , 750..779 , 780..809 , 810..839 , 840..869 , 870..899 , 900..929 , 930..959 , 960..989 , 990..1019 , 1020..1049 , 1050..1079 , 1080..1109 , 1110..1139 , 1140..1169 , 1170..1199 , 1200..1229 , 1230..1259 , 1260..1289 , 1290..1319 , 1320..1349 , 1350..1379 , 1380..1409 , 1410..1439 , 1440..1469 , 1470..1499 , 1500..1529 , 1530..1559 , 1560..1589 , 1590..1619 , 1620..1649 , 1650..1679 , 1680..1709 , 1710..1739 , 1740..1769 , 1770..1799 , 1800..1829 , 1830..1859 , 1860..1889 , 1890..1919 , 1920..1949 , 1950..1979 , 1980..2009 , 2010..2039 , 2040..2069 , 2070..2099 , 2100..2129 , 2130..2159 , 2160..2189 , 2190..2219 , 2220..2249 , 2250..2279 , 2280..2309 , 2310..2339 , 2340..2369 , 2370..2399 , 2400..2429 , 2430..2459 , 2460..2489 , 2490..2519 , 2520..2549 , 2550..2579 , 2580..2609 , 2610..2639 , 2640..2669 , 2670..2699 , 2700..2729 , 2730..2759 , 2760..2789 , 2790..2819 , 2820..2849 , 2850..2879 , 2880..2909 , 2910..2939 , 2940..2969 , 2970..2999 , 3000..3029 , 3030..3059 , 3060..3089 , 3090..3119 , 3120..3149 , 3150..3179 , 3180..3209 , 3210..3239 , 3240..3269 , 3270..3299 , 3300..3329 , 3330..3359 , 3360..3389 , 3390..3419 , 3420..3449 , 3450..3479 , 3480..3509 , 3510..3539 , 3540..3569 , 3570..3599 , 3600..3629 , 3630..3659 , 3660..3689 , 3690..3719 , 3720..3749 , 3750..3779 , 3780..3809 , 3810..3839 , 3840..3869 , 3870..3899 , 3900..3929 , 3930..3959 , 3960..3989 , 3990..4019 , 4020..4049 , 4050..4079 , 4080..4109 , 4110..4139 , 4140..4169 , 4170..4199 , 4200..4229 , 4230..4259 , 4260..4289 , 4290..4319 , 4320..4349 , 4350..4379 , 4380..4409 , 4410..4439 , 4440..4469 , 4470..4499 , 4500..4529 , 4530..4559 , 4560..4589 , 4590..4619 , 4620..4649 , 4650..4679 , 4680..4709 , 4710..4739 , 4740..4769 , 4770..4799 , 4800..4829 , 4830..4859 , 4860..4889 , 4890..4919 , 4920..4949 , 4950..4979 , 4980..5009 , 5010..5039 , 5040..5069 , 5070..5099 , 5100..5129 , 5130..5159 , 5160..5189 , 5190..5219 , 5220..5249 , 5250..5279 , 5280..5309 , 5310..5339 , 5340..5369 , 5370..5399 , 5400..5429 , 5430..5459 , 5460..5489 , 5490..5519 , 5520..5549 , 5550..5579 , 5580..5609 , 5610..5639 , 5640..5669 , 5670..5699 , 5700..5729 , 5730..5759 , 5760..5789 , 5790..5819 , 5820..5849 , 5850..5879 , 5880..5909 , 5910..5939 , 5940..5969 , 5970..5999 , 6000..6029 , 6030..6059 , 6060..6089 , 6090..6119 , 6120..6149 , 6150..6179 , 6180..6209 , 6210..6239 , 6240..6269 , 6270..6299 , 6300..6329 , 6330..6359 , 6360..6389 , 6390..6419 , 6420..6449 , 6450..6479 , 6480..6509 , 6510..6539 , 6540..6569 , 6570..6599 , 6600..6629 , 6630..6659 , 6660..6689 , 6690..6719 , 6720..6749 , 6750..6779 , 6780..6809 , 6810..6839 , 6840..6869 , 6870..6899 , 6900..6929 , 6930..6959 , 6960..6989 , 6990..7019 , 7020..7049 , 7050..7079 , 7080..7109 , 7110..7139 , 7140..7169 , 7170..7199 , 7200..7229 , 7230..7259 , 7260..7289 , 7290..7319 , 7320..7349 , 7350..7379 , 7380..7409 , 7410..7439 , 7440..7469 , 7470..7499 , 7500..7529 , 7530..7559 , 7560..7589 , 7590..7619 , 7620..7649 , 7650..7679 , 7680..7709 , 7710..7739 , 7740..7769 , 7770..7799 , 7800..7829 , 7830..7859 , 7860..7889 , 7890..7919 , 7920..7949 , 7950..7979 , 7980..8009 , 8010..8039 , 8040..8069 , 8070..8099 , 8100..8129 , 8130..8159 , 8160..8189 , 8190..8219 , 8220..8249 , 8250..8279 , 8280..8309 , 8310..8339 , 8340..8369 , 8370..8399 , 8400..8429 , 8430..8459 , 8460..8489 , 8490..8519 , 8520..8549 , 8550..8579 , 8580..8609 , 8610..8639 , 8640..8669 , 8670..8699 , 8700..8729 , 8730..8759 , 8760..8789 , 8790..8819 , 8820..8849 , 8850..8879 , 8880..8909 , 8910..8939 , 8940..8969 , 8970..8999 , 9000..9029 , 9030..9059 , 9060..9089 , 9090..9119 , 9120..9149 , 9150..9179 , 9180..9209 , 9210..9239 , 9240..9269 , 9270..9299 , 9300..9329 , 9330..9359 , 9360..9389 , 9390..9419 , 9420..9449 , 9450..9479 , 9480..9509 , 9510..9539 , 9540..9569 , 9570..9599 , 9600..9629 , 9630..9659 , 9660..9689 , 9690..9719 , 9720..9749 , 9750..9779 , 9780..9809 , 9810..9839 , 9840..9869 , 9870..9899 , 9900..9929 , 9930..9959 , 9960..9989 , 9990..10019 , 10020..10049 , 10050..10079 , 10080..10109 , 10110..10139 , 10140..10169 , 10170..10199 , 10200..10229 , 10230..10259 , 10260..10289 , 10290..10319 , 10320..10349 , 10350..10379 , 10380..10409 , 10410..10439 , 10440..10469 , 10470..10499 , 10500..10529 , 10530..10559 , 10560..10589 , 10590..10619 , 10620..10649 , 10650..10679, >>Next

 Graphs/443399: need help with solving this equation with graphing please. {y=-4x-5 y=-x-5} mountlace@msn.com1 solutions Answer 306114 by ewatrrr(10682)   on 2011-05-02 16:29:14 (Show Source): You can put this solution on YOUR website!``` Hi find points by choosing x-values and determining the y-values y = -4x-5 Points (0-5), (-1,-1) and (-2,3) on this line (blue) y = x - 5 Points (0-5), (1,-4) and (2,-3) on this line (green) Lines intersect at Pt(0,-5) This ordered pair is the solution for this system Plot points, connect with the corresponding lines ```
 Graphs/443889: how do u graph x - y = -21 solutions Answer 306111 by ewatrrr(10682)   on 2011-05-02 16:20:02 (Show Source): You can put this solution on YOUR website!``` Hi x - y = -2 y = x + 2 x y 0 2 (0,2) -1 1 (-1,1) -2 0 (-2,0) Plot points, connect with the line representing y = x + 2 ```
 Graphs/443895: how do u graph 2x + y = -61 solutions Answer 306109 by ewatrrr(10682)   on 2011-05-02 16:17:28 (Show Source): You can put this solution on YOUR website!``` Hi 2x + y = -6 y = -2x - 6 x y 0 -6 (0,-6) -1 -8 (-1,-8) -2 -2 (-2,-2) Plot points, connect with the line representing y = -2x-6 ```
 Mixture_Word_Problems/443883: what is the least commom denominator for 3/4 and 3/8 ?1 solutions Answer 306105 by ewatrrr(10682)   on 2011-05-02 16:04:44 (Show Source): You can put this solution on YOUR website! ``` Hi the least commom denominator for 3/4 and 3/8 is 8 3/4 = 6/8 the two numbers in 'Like' form are 6/8 and 3/8 ```
 Numeric_Fractions/443874: Perimeter of a high school basketball court. The perimeter of a standard high school basketball court is 268 ft. The length is 34 ft longer than the width. Find the dimensions of the court. Source: Indiana High School Athletic Association thank you!1 solutions Answer 306103 by ewatrrr(10682)   on 2011-05-02 16:01:41 (Show Source): You can put this solution on YOUR website! ``` Hi The perimeter of a standard high school basketball court is 268 ft. The length is 34 ft longer than the width Let x and (x+34) represent the width and length respectively 2*(x+34) + 2*x = 268ft 4x = 268 - 68 4x = 200 x = 50 ft, the width. the length is 84 ft CHECKING our Answer*** 2*84ft + 2*50ft = 268ft ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Rectangles/443876: A garden has an area of 96 yd. Its width is 6 yd. Find its perimeter. How do I do that?1 solutions Answer 306097 by ewatrrr(10682)   on 2011-05-02 15:53:52 (Show Source): You can put this solution on YOUR website! ``` Hi Let x and y represent the width and length respectively P = 2*y + 28x AND x*y = 96yd^2 6yd = 96yd^2/y |Its width is 6 yd. y = 96yd^2/6yd = 16yd 2*y + 2*x = P 2*16yd + 2*6yd = 44 yd ```
 Rectangles/443264: Using whole units and the perimeter given, find the dimensions of the rectangle with the greatest area. 1. P=24 Please show step by step of how to solve this problem. Thank you.1 solutions Answer 306093 by ewatrrr(10682)   on 2011-05-02 15:44:43 (Show Source): You can put this solution on YOUR website! ``` Hi A rectangle has a perimeter of 24 feet. Let x and y represent the width and length respectively 2*y + 2*x = 24 2(y+x) = 24 y + x = 12 Possible combinations of the dimensions and resulting Area Rectangle in shape of a square with all sides = 6 has the greatest area. width length Area 1 11 11 2 10 20 3 9 27 4 8 32 5 7 35 6 6 7 5 35 8 4 32 9 3 27 10 2 20 12 1 12 ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Rectangles/443220: A rectangle has a perimeter of 30 feet. Express the area A of the rectangle as a function of the length x of one of its sides.1 solutions Answer 306091 by ewatrrr(10682)   on 2011-05-02 15:38:08 (Show Source): You can put this solution on YOUR website! ``` Hi A rectangle has a perimeter of 30 feet. Let x and y represent the width and length respectively 2*y + 2*x = 30ft 2(y+x) = 30ft y + x = 15ft y = 15ft-x Area(rectangle) = L*W = (15-x)x A = x(15ft-x) ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Rectangles/443862: The length of a rectangle is 4 times the width. The perimeter is 50cm. Find the length and width.1 solutions Answer 306089 by ewatrrr(10682)   on 2011-05-02 15:32:27 (Show Source): You can put this solution on YOUR website! ``` Hi length of a rectangle is 4 times the width Let x and 4x represent the width and length respectively 2*4x + 2*x = 50cm 10x = 50cm x = 5cm, the width. The length is 20cm CHECKING our Answer*** 2*20cm + 2*5cm = 50cm ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Probability-and-statistics/443829: Find the standard deviation for these data values. [ round to the nearest thousandth ] 11 16 18 11 10 14 12 111 solutions Answer 306075 by ewatrrr(10682)   on 2011-05-02 14:41:12 (Show Source): You can put this solution on YOUR website! ``` Hi 11 16 18 11 10 14 12 11 SD = 2.8504 using data Analysis in Excel Caculators work as well ```
 Probability-and-statistics/443701: The data below show the number of years of education for seven parent-child pairs. respondent A B C D E F G years of education of parent (x) 14 10 7 13 13 9 12 years of education of child (y) 13 14 7 15 20 6 18 a) Determine the correlation coefficient r= b) Find the equation of the regression line, y=mx+b First find the slope,m m= Now calculate the y-intercept, b, of the regression line. b= c) Approximate the number of years of education for a child with a parent who has 16 years of education. y approximately=1 solutions Answer 306069 by ewatrrr(10682)   on 2011-05-02 14:28:14 (Show Source): You can put this solution on YOUR website! ``` Hi x parent and y child x x^2 y y^2 xy 14 196 13 169 182 10 100 14 196 140 7 49 7 49 49 13 169 15 225 195 13 169 20 400 260 9 81 6 36 54 12 144 18 324 216 78 908 93 1399 1096 r = = .7493 y = 1.54x -3.84 parent 16 years of education... the child ~ 21 ```
 Probability-and-statistics/443525: All of the letters of the word MISSISSIPPI are placed in a bag. What is the probability of pulling an S and then pulling an M? (Without replacing the first letter that was pulled)1 solutions Answer 306061 by ewatrrr(10682)   on 2011-05-02 14:09:54 (Show Source): You can put this solution on YOUR website! ``` Hi All of the letters of the word MISSISSIPPI are placed in a bag 11 Letters: 4 of which are s and 1 of which is a m Without replacing the first letter that was pulled P(pulling s and then m) = 4/11*1/10 ```
 Probability-and-statistics/443534: A manufacturing machine has a 1% defect rate. If 4 items are chosen at random, what is the probability that at least one will have a defect? 1 solutions Answer 306057 by ewatrrr(10682)   on 2011-05-02 13:56:25 (Show Source): You can put this solution on YOUR website! ``` Hi A manufacturing machine has a 1% defect rate. 4 items are chosen at random P(at least one will have a defect) Note: The probability of x successes in n trials is: P = nCx* where p and q are the probabilities of success and failure respectively. In this case p = .01 and q = .99 nCx = P(at least one defective) = 1 - P(none defective) = 1 - (.99)^4 =.0394 P(at least one defective)= .0394 ```
 Probability-and-statistics/443601: A quiz consists of 20 multiple-choice questions, each with 5 possible answers. For someone who makes random guesses for all of the answers, find the probability of passing if the minimum passing grade is 70 %. 1 solutions Answer 306051 by ewatrrr(10682)   on 2011-05-02 13:43:49 (Show Source): You can put this solution on YOUR website! ``` Hi A quiz consists of 20 multiple-choice questions, each with 5 possible answers P(passing) if the minimum passing grade is 70 %. |that is, 14 or more correct Note: The probability of x successes in n trials is: P = nCx* where p and q are the probabilities of success and failure respectively. In this case p = 1/5 = .2 and q = .8 nCx = For example: P(x = 14) = 30C14(.2)^14(.8)^6 = 38,760(.2)^14(.8)^6 = .0000016647 P(x ≥ 14) = P(14)+P(15)+P(16)+P(17)+P(18)+P(19)+P(20) = .000001845 ```
 Probability-and-statistics/443687: The scores on a test are normally distributed with the mean of 150 and a standard deviation of 30. What is the score that is 1/2 standard mediation above the mean? 1 solutions Answer 306042 by ewatrrr(10682)   on 2011-05-02 13:24:00 (Show Source): You can put this solution on YOUR website! ``` Hi mean of 150 and a standard deviation of 30. *Note: | z = .5 .5 = (x-150)/30 x = .5*30 + 150 x = 165 ```
 Probability-and-statistics/443690: A set of data items is normally distributed with a mean of 80 and a standard deviation of 4. Convert 89 to a z-score.1 solutions Answer 306039 by ewatrrr(10682)   on 2011-05-02 13:20:13 (Show Source): You can put this solution on YOUR website! ``` Hi mean of 80 and a standard deviation of 4 *Note: | x = 89 z = (89-80)/4 = 9/4 = 2.25 ```
 Probability-and-statistics/443692: The scores on a test are normally distributed with a mean of 50 and a standard deviation of 30. Find the score that is 2.5 standard deviations above the mean. 1 solutions Answer 306038 by ewatrrr(10682)   on 2011-05-02 13:18:01 (Show Source): You can put this solution on YOUR website! ``` Hi mean of 50 and a standard deviation of 30. *Note: | z = 2.5 2.5 = (x-50)/30 x = 2.5*30 + 50 x = 125 ```
 Probability-and-statistics/443694: A set of data items is normally distributed with a mean of 80 and a standard deviation of 7. Convert 88 to a z-score.1 solutions Answer 306036 by ewatrrr(10682)   on 2011-05-02 13:15:04 (Show Source): You can put this solution on YOUR website! ``` Hi mean of 80 and a standard deviation of 7 *Note: | x = 88 z = (88-80)/7 = 8/7 = 1.429 ```
 Probability-and-statistics/443716: compute r, the correlation coefficient, using the following data x 2 1 6 8 4 5 y 8 10 3 1 6 4 r=1 solutions Answer 306033 by ewatrrr(10682)   on 2011-05-02 13:06:22 (Show Source): You can put this solution on YOUR website! ``` Hi x x^2 y y^2 xy 2 4 8 64 16 1 1 10 100 10 6 36 3 9 18 8 64 1 1 8 4 16 6 36 24 5 25 4 16 20 26 146 32 226 96 = -.99935 ```
 Probability-and-statistics/443717: compute r, the correlation coefficient, using the following data x 1 6 3 7 4 5 y 2 9 6 9 5 7 r=1 solutions Answer 306031 by ewatrrr(10682)   on 2011-05-02 13:00:58 (Show Source): You can put this solution on YOUR website! ``` Hi x x^2 y y^2 xy 1 1 2 4 2 6 36 9 81 54 3 9 6 36 18 7 49 9 81 63 4 16 5 25 20 5 25 7 49 35 26 136 38 276 192 = .9519 ```
 Probability-and-statistics/443739: if a single fair die is rolled, find the probability of a 4 given that the number rolled is odd.1 solutions Answer 306023 by ewatrrr(10682)   on 2011-05-02 12:21:02 (Show Source): You can put this solution on YOUR website! ``` Hi P(A|B) = P(A and B)/P(B) P(4|it is odd) = 0 as P(A and B) = 0 ```
 Probability-and-statistics/443752: Can someone please help me with this? For the following set of data: 13, 10, 11, 8, 14, 13, 13, 14, 30 1: Find the mean and standard deviatin: I got 14 or the mean and 6.0 for my standard deviation, but I wasn't very confident in that. 2: Within how many standard deviations of the mean do all of the above data values fall? 3: A set of values has a mean of 34 and a standard deviation of 4. Find the z-score of the value 26. I'm so lost :( Thank you1 solutions Answer 306021 by ewatrrr(10682)   on 2011-05-02 12:16:47 (Show Source): You can put this solution on YOUR website! ``` Hi data: 13, 10, 11, 8, 14, 13, 13, 14, 30 Meam = 14 SD = 6.3246 30 is 2.5298 SD from mean of 14 | (30-14)/6.3246 All fall within that area between the green lines below 34 and a standard deviation of 4: x = 26 then z = -8/4 = -2 ```
 Graphs/443709: the number of tickets sold each day for an upcoming performance of handel's Messiah is given by N(x)=-0.3x^2+6.6x+14, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day? Ticket sales will peak__days after the concert was first announced. The number of tickets soldon the day will be ___1 solutions Answer 306010 by ewatrrr(10682)   on 2011-05-02 11:43:59 (Show Source): You can put this solution on YOUR website! ``` Hi N(x)=-0.3x^2+6.6x+14 Note: vertex form of a parabola, where(h,k) is the vertex N(x)= -0.3[(x-11)^2 -121]+14 N(x)= -0.3(x-11)^2 + 50.3 Vertex(11,50.3) ticket sales peak on 11th day and 50 tickets will be sold that day ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Graphs/442922: y=(x^3-x)/2 I need to find the intercepts, I know it intercepts the y axis at (0,0) but want to know how to find the x intercepts,I am having trouble when plugging 0 in for y. I am thinking they will be square roots. Please help I was also asked to test this equation for symmetry and determined that it is symmetric with respect to the origin.1 solutions Answer 306003 by ewatrrr(10682)   on 2011-05-02 11:31:16 (Show Source): You can put this solution on YOUR website! ``` Hi y= (x^3-x)/2 y-intercept (0,0) x-intercept (when y=0) x^3-x)/2 = 0 x(x^2-1) = 0 x(x-1)(x+1)= 0 x = 0 (0,0) (x-1)= 0 (1,0) (x+1)= 0 (-1,0) ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Graphs/443745: find the vertex, the line of symmetry, the maximum or minimum value of the quatratic function, and graph the functio f(x)=+-2x^2+2x+8 Find the x-coordinate of the vertex is___ Find the y-coordinate of the vertex is__ The equation of the line of symmetry is x=____ The maximum/minimum of f(x)is ___ The value , f(1/2)=17/2 is?1 solutions Answer 305998 by ewatrrr(10682)   on 2011-05-02 11:23:46 (Show Source): You can put this solution on YOUR website! ``` Hi Note: vertex form of a parabola, where(h,k) is the vertex f(x)= -2x^2+2x+8 f(x)= -2[(x-.5)^2 -.25] +8 f(x)= -2(x-.5)^2 +.5 +8 f(x)= -2(x-.5)^2 + 8.5 V(.5,8.5) Line of symetry is x = .5 a = -2 < 0 Parabola opens downward: f(x) maximum is 8.5 The value , f(1/2) = 17/2 is the maximum value for f(x) ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Graphs/443744: Hello. I need a little bit of help...or shall I say, a lot of help with this Algebra problem: An equation and two ordered pairs are given. Show that each pair is a solution of the equation. Then graph the two pairs to determine another solution. Answers may vary. 2y + x = 5; (−1, 3), (7, −1) Thank you! 1 solutions Answer 305991 by ewatrrr(10682)   on 2011-05-02 11:12:43 (Show Source): You can put this solution on YOUR website! ``` Hi Ordered pairs (-1, 3), (7,-1) Show that each pair is a solution of the equation:2y + x = 5 2y + x = 5 2*3 + -1 = 5 |Ordered pair (-1, 3) works! 2y + x = 5 2*-1 + 7 = 5 |Ordered pair (7, -1) works! Others: (3,1), (-3,4) etc ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Graphs/443727: How to coordinates 6,1 on the gragh1 solutions Answer 305984 by ewatrrr(10682)   on 2011-05-02 10:31:01 (Show Source): You can put this solution on YOUR website! ``` Hi (6,1) represents an ordered pair: the 1st value of 6 the x-value the 2nd value of 1 the y-value Below are examples of the following ordered pairs: (1,2),(3,4) and (5,5) ```
 Quadratic-relations-and-conic-sections/443381: Find the standard equation of an ellipse with a vertices on the major axis at (-1,2), (5,2) and a minor axis with a length of 21 solutions Answer 305823 by ewatrrr(10682)   on 2011-05-01 17:26:09 (Show Source): You can put this solution on YOUR website! ``` Hi Find the standard equation of an ellipse with a vertices on the major axis at: (-1,2), (5,2) and a minor axis with a length of 2 Standard Form of an Equation of an Ellipse is where Pt(h,k) is the center and a and b are the respective vertices distances from center. ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Numeric_Fractions/443338: how do you evalute -3/5+41 solutions Answer 305804 by ewatrrr(10682)   on 2011-05-01 16:39:01 (Show Source): You can put this solution on YOUR website! ``` Hi Evaluating by combining Like terms: -3/5 + 4 = -3/5 + 20/5 = 17/5 or 3 2/5 ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Quadratic-relations-and-conic-sections/443305: Solve the following system of equations and state answer in coordinate pairs? x+y=5 and x^(2)-y^(2)=51 solutions Answer 305803 by ewatrrr(10682)   on 2011-05-01 16:36:41 (Show Source): You can put this solution on YOUR website! ``` Hi Solve the following system of equations x+y=5 OR x = 5-y AND x^2 = (5-y)(5-y) = 25-10y+y^2 x^(2)-y^(2)=5 OR x^2 = 5+y^2 25-10y+y^2 = 5+y^2 20 = 10y y = 2 and x = 3 Orderecd Pair (3,2) ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```
 Graphs/442772: Graph the function f(x)= -(x-1)^21 solutions Answer 305463 by ewatrrr(10682)   on 2011-04-30 11:14:42 (Show Source): You can put this solution on YOUR website! ``` Hi Graph the function Note: vertex form of a parabola, where(h,k) is the vertex f(x)= -(x-1)^2 |y-intercept is (0,-1) V(1,0), Parabola opens downward a = -1 < 0 x-intercepts: x = (1,0) ewatrrr@aol.com private/pay tutoring Inquiries only, please. ```