Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 909255: write an equation for a quadratic given the following:
x-intercepts are (2,0) and (5,0) and y-intercept is (0,6)
I know that it means I have (x-2) and (x-5) for my equation. I multiplied them to get x^2 - 7x + 35. I'm not sure how to incorporate the y-intercept.
Do I put the equation equal to 6 and solve?
6= x^2 - 7x + 35
Is my answer x^2 - 7x -29?
Click here to see answer by Edwin McCravy(20054)  |
Question 909255: write an equation for a quadratic given the following:
x-intercepts are (2,0) and (5,0) and y-intercept is (0,6)
I know that it means I have (x-2) and (x-5) for my equation. I multiplied them to get x^2 - 7x + 35. I'm not sure how to incorporate the y-intercept.
Do I put the equation equal to 6 and solve?
6= x^2 - 7x + 35
Is my answer x^2 - 7x -29?
Click here to see answer by AnlytcPhil(1806)  |
Question 909392: A ship is anchored 9 miles from the nearest point of a straight beach. A man in the ship wishes to row to the shore and walk to a point on the beach 17 miles from the point directly opposite the ship. If he can row at the rate of 4 miles per hour and walk at the rate of 5 miles per hour, where ought he to land in order to reach his destination in 4 hour and 45 minutes?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 909780: After walking a distance of 6 miles at a certain rate, a man decided to increase his rate per hour by 1 mile and walked 5 miles farther. Had he walked the entire distance of 11 miles at his former rate, his time would have been 15 minutes longer. Find his former rate.
Click here to see answer by lwsshak3(11628) |
Question 909777: A vessel contains 49 gallons of alcohol. A certain amount of it is drawn and then replaced by the same amount of water. Then the same amount of the mixture be drawn, after which the vessel contains only 36 gallons of pure alcohol. How many gallons was drawn each time?
Click here to see answer by josgarithmetic(39616) |
Question 909803: A traveler left a town A at 5:00 am, and traveled toward a town B. At 7:00 o’clock another traveler left town B and traveled toward A. They met at 9:05 am. The first traveler arrived at B and the second at A at the same time. How long did each make the journey?
Click here to see answer by Edwin McCravy(20054)  |
Question 910423: Hello, I don't quite understand the whole quadratic formula stuff.
My equation is 4n^2-10n-104=0... I got the next step done.
Which is X=-(-10)+- /10^2+4x4x(-104)
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2x4
Now im not sure what i do next. any help is great.
Click here to see answer by Fombitz(32388)  |
Question 910423: Hello, I don't quite understand the whole quadratic formula stuff.
My equation is 4n^2-10n-104=0... I got the next step done.
Which is X=-(-10)+- /10^2+4x4x(-104)
----------------
2x4
Now im not sure what i do next. any help is great.
Click here to see answer by ewatrrr(24785)  |
Question 910795: SURDS-----SURDS
The hypotenuse of a right angled triangle has length 24cm and another one of the sides has length 18cm. Find the exact length of the third side.
I got stuck in this question, can anyone help. All suggestions and answers will be appreciated! Thank you for helping me:) and taking your time to answer my question and showing the working out step by step.
Click here to see answer by Alan3354(69443)  |
Question 911591: Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)
2x4 + 4x2 + 6 = 0
Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.)
(x+6/x)^2 +10(x+6/x)+21=0
Click here to see answer by ewatrrr(24785)  |
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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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