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Tutors Answer Your Questions about Linear Algebra (FREE)
Question 215795: One poll reported that the approval rating of the job performance of the President of the United States was 63%. The poll was said to be accurate to within 3.8%. What is the range of actual approval ratings?
Click here to see answer by stanbon(26259)   |
Question 218137: you travel 275 miles in 5.5 hours if you drive at a constant speed the distance you drive varies directly with time spent
a what is the constant variation
b write an equation that relates the distance driven at the time spent driving
c use equatio n t to find how long it takes to drive 350 miles
d use equation to find the distance travel in 4hours
Click here to see answer by rfer(2688) |
Question 7540: The period of a simple pendulum is directly proportional to the
square root of its length. If a pendulum has a length of 6 feet and a
period of 2 seconds, to what length should it be shortened to achieve
a 1 second period?
Click here to see answer by Merhuza(5)  |
Question 218445: I need your help to know if f(x)= |x+4| is a vertical, horizontal, or diagonal translation and how to graph it. I think that the equation is vertical because it is a positive 4. And then if I graph it x would equal 4 and y equal to 0.
Click here to see answer by stanbon(26259) |
Question 218445: I need your help to know if f(x)= |x+4| is a vertical, horizontal, or diagonal translation and how to graph it. I think that the equation is vertical because it is a positive 4. And then if I graph it x would equal 4 and y equal to 0.
Click here to see answer by rfer(2688) |
Question 185239: The Cookie Factory's best selling items are chocolate chip cookies andpeanut butter cookies. They want to sell both types of cookies together in combination packages. The different szed packages will contain between 6 an 12 cookies, inclusively. At least three of each type of oookie should be in each package. Th cost of making a chocolate chip cookie is 19 cents and the selling price is 44 cents each. The cost of making apeanut butter cookie is 13 cents and th selling price is 39 cents each. How many of each type of cookie should be in each packagev to maximize the profit?
Click here to see answer by yes9521(1) |
Question 219696: I have two problems that Im not sure how to work and I have a test coming up. Can you please explain how to do these types of problems?
The first one is (x+1)(x-5) and the other one is
-3xcubed-xsquared-7 for a.) x=-1 ; b.) x=2
Click here to see answer by solver91311(5072)  |
Question 220108: A lanscaper balances his daily projects between small landscape jobs and mowing lawns. He allows 30 minutes for per lawn and 90 minutes per small landscape job. He works at most ten hours per day. The landscaper earns 35 per lawn and 125 per small landscape job. He can not do more than three landscape jobs per day and get all his mowing done. Find a combination of lawns mowed and completed landscape jobs per day that will maximize his income.
This is linear programming i really dont get this problem please help
Click here to see answer by Theo(667)  |
Question 224440: Suppose you need to solve a system of equations in which both equations represent lines. How many solutions can your system have?
How many solutions does the following equations have?
8x+4y=8
2x-2y=-4
Click here to see answer by drj(1380)  |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890
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