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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 411145: The line through (-7,3) and (8,-5) also goes through the point (t, 1) for T Click here to see answer by robertb(4012)

 Question 411128: Find all y such that the distance between the points (-9, 8) and (9, y) is 26 Click here to see answer by robertb(4012)

 Question 411140: Working alone, worker A can complete a task in 3 hours; worker B can complete it in 6 hours. How long will it take for both of them, working together, to complete the task? Click here to see answer by eric.schuh(2)

 Question 411434: Henry received a 6% raise. If his old monthly salary was \$2,250, what is his monthly salary now? Click here to see answer by rfer(12729)

 Question 411529: A polygon of n side has diagonals. How many sides has a polygon with 77 diagonals? The sum of first n positive integers is . How many consecutive integers, starting with 1, are required to add up to 66? Click here to see answer by Edwin McCravy(8999)

 Question 411547: please help me on the following assignment questions .how do i differentiate xcos3x with respect to x .how do i intergrate xcos3x with respect to x Click here to see answer by richard1234(5390)

 Question 411814: 1)find three consecutive integers such that the sum of the third equels 142 2)find four consecutive intagers such that 8 times the sum of the first and the third is 40 greater than 10 times the forth Click here to see answer by shree840(260)
 Question 411814: 1)find three consecutive integers such that the sum of the third equels 142 2)find four consecutive intagers such that 8 times the sum of the first and the third is 40 greater than 10 times the forth Click here to see answer by stanbon(57960)

 Question 411818: Jesse is planning avgarden. She has 24 feet of fencing to use and plans to use the garage as one side of the garden. If the garden will be rectangular in shape, what is the area of the largest garden jesse can build? If she wants to maximize the area is this the best design? Explain your answer. Click here to see answer by shree840(260)

 Question 411886: How do I round 218.79044 to the nearest one Click here to see answer by shree840(260)

 Question 5192: As treasurer, Anthony decided to invest \$600 collectd in club dues. Part was invested in 3% account for immediate access with the rest in a long term 7 1/4% account. If the interest for 1 year was \$26.50, how much was invested at 7 1/4% O.K. I am stuck again - here is my best effort 0.03x + 0.0725(600-x)= 26.50 .003x + 43.50 - 0.0725= 26.50 0.0425x=17.00 x=400 This is not the answer my book has. Please tell me what I did wrong and what answer you get. Thank you very much Click here to see answer by shree840(260)

 Question 412127: 53%of the 1000 students a Barrett high are girls how many boys are there in the school Click here to see answer by josmiceli(9817)

 Question 412166: A seed company sells two grades of grass seed a 100 pound bag of a mixture of rye and Kentucky bluegrass sells for \$245 and a 100 pound bag of bluegrass sells for \$347 how many bags of each are sold in a week when the receipts for 19 bags are \$5359 Click here to see answer by stanbon(57960)

 Question 411984: Hi.Thanks for responding and helping me solve this problem.Please show the work. 1.For vacation, Tom drove to a beach that was 300 miles away from his home.He made a rest stop when he was two-thirds of the way there. -It took Tom 4 hours to get to the rest stop. In miles per hour,what was the average speed that he drove for the first four hours of the trip? -Due to heavy traffic, Tom was only able to drive at 25 mph for the rest of the trip. How many hours did it take for him to drive the remaining distance to the beach? -On the way home, Tom decided to go a different way to avoid the traffic. This route was 30 miles longer than the trip to the beach. It took him 6 hours to get home. What was his average speed in miles per hour? Thank you. Click here to see answer by ankor@dixie-net.com(15746)

 Question 412236: Find the slope and y-intercept of the line 8x-3y=21 Click here to see answer by mananth(12270)

 Question 412234: Find the slope of the line that passes through the points (4,3) and (-2,-1) Click here to see answer by mananth(12270)

 Question 412361: How to solve: 3 sin 45 degrees - 4 tan pi/6? Thanks! Click here to see answer by sudhanshu_kmr(1152)

 Question 412251: Find the domain and range of the given relation. Also determine whether the relation is a function {(0,1)(1,2)(0,3)(1,4)} Click here to see answer by ewatrrr(10682)

 Question 412453: The currents speed Is 3 mph. Sean kayaks 4mi upstream the same time it takes him 10 mi to go downstream. What's the speed of the kayak in still water???? Click here to see answer by josmiceli(9817)

 Question 412569: Help!! Use the properties of the trigonometric functions to find the exact value of the expression: sin^2 40 degrees + cos^2 40 degrees. Click here to see answer by Alan3354(31513)

 Question 412609: solve the formula P=2l + 2w for w Click here to see answer by ewatrrr(10682)

 Question 412765: I don't understand what does the teacher mean by this... PERFORM THE FOLLOWING OPERATIONS.. 86,492-78,506 Click here to see answer by solver91311(17077)

 Question 412801: I need help with this homework, and you guys have never failed me! Graph each linear equation by finding and plotting its intercepts. My teacher wants three different plots, I used (0,3) and (3,0) can't figure out the next. Click here to see answer by shree840(260)

 Question 412995: A picture has a height that is 4/3 it's width. It is to be enlarged to have an area of 192 square inches. What will be the dimensions of the enlargements? Click here to see answer by shree840(260)

 Question 413412: I need help with somevof the sections in algebra 1 and i really need help to get my grade up in math Click here to see answer by phxladyphx@yahoo.com(18)

 Question 413403: I need help with this question on how to solve it. Passing (-4,5), y-intercept=-3 I have to put that on slope intercept form. Can you please help? Click here to see answer by sudhanshu_kmr(1152)

 Question 413547: How do I graph y = 4 cos x? I know there's some sort of table to help me with this...? Click here to see answer by richard1234(5390)

 Question 413534: solve the following problem. Include your work by showing the steps you took to solve it or explain it in words what you did. According to the Guinness book of world records, the peregrine falcon has a record diving speed of 168 miles per hour! Write speed in feet per second . Apparently I'm not doing it right; Can some one please help me. Thank you. Click here to see answer by Blue_Skies(5)

 Question 413648: -4x + y = 16 solve for y Click here to see answer by checkley79(3056)