Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 451144: Determine the nature of the solutions of the equation 10t^2 - 8t = 0.
2) give exact and approximate solutions to thee decimal places x^2+2x+1=4
3) solve by copleting the square x^2+13/2x=13
4) give exact and approximate solutions to three decimal places (x-5)^2=18
Thank you,
Click here to see answer by ewatrrr(24785)  |
Question 451301: Hi! I was trying to solve this problem for quadratic equation: but in order to simplify it I get stuck on the part during the equation that looks like this (the + sign in the equation represents the + or - one in the actual equation: . I know that the square root of a negative number is (square root of the number as if it were positive) x i(the square root of - 1). I also know that there will be 2 solutions to this equation. But what do I do after if I need to simplify it as much as possible? Thanks for any help you may give me!
Click here to see answer by jim_thompson5910(35256) |
Question 451389: How much of a 5% acid solution and a 20% acid solution must be mixed inorder to obtain 3 gallons of a 10% acid solution? I got the answer 2 gallons of 5% and 1 gallon of 10% but I don't know why.
Please show me step by step to get the answer. Thanks
Click here to see answer by jorel1380(3719)  |
Question 451727: if a model rocket was measured by the vertical motion model h=-16t2+96t, how many seconds would it take for the model rocket to reach 80 feet for the second time?
My math teacher asked a similar vertical motion question and if i see this one worked out i might understand it better.
Click here to see answer by benn143(2) |
Question 451965: There are Four different methods of solving a quadratic equation; factoring, the square root property, completing the square, and the quadratic formula. Explain under what circumstances each method would be preferred over any of the other methods. Give an example for each circumstance.
Click here to see answer by richard1234(7193)  |
Question 451993: Hi
I did this equation and got the following answers. Can you please explain what my answers mean?
Actual Graph of y = 12x2-146x+328
x = 9.19357626775359, 2.97309039891308
12x2-146x+328 = 12(x-9.19357626775359)(x-2.97309039891308)
Click here to see answer by stanbon(75887) |
Question 452241: State whether the following equation represents a linear, quadratic or exponential function. y=x^0.2 I think Exponential but there is a multiple choice answer that says "none of these" so I am not %100 sure.
Click here to see answer by stanbon(75887) |
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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, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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