Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 1043734: whats the answer to this scientific notation

Click here to see answer by Boreal(15235)

Question 1043736: Write this number using standard notation. 1.02x10^-2
Click here to see answer by josmiceli(19441)

Question 1043736: Write this number using standard notation. 1.02x10^-2
Click here to see answer by stanbon(75887)

Question 1043781: Edna paid at least php 1,200 for a pair of pants and blouse, the cost of the pair of pants is php 600 more than the cost of. Blouse. Dont solve it write the problem in a mathematical sentence :) thank you
Click here to see answer by josmiceli(19441)

Question 1043867: If you are given the sum of the squares of three consecutive integers, what four digits can never occur in the ones place?
There are lots of things going on in this problem. I don't want to give you any hints. What I want to see is people throwing out ideas on where to start, what to do first, what to do next, etc.
Click here to see answer by ikleyn(52777)

Question 1043898: Choose the answer that correctly expresses this number in scientific notation.

.0167
Click here to see answer by josgarithmetic(39617)

Question 1043900: Choose the answer that correctly expresses this number in scientific notation.

.0167
1.67x10^3
1.67x10^-2
1.67x10^-1
1.67x10^2

Click here to see answer by Boreal(15235)

Question 1043903: Multiply. Choose the answer that correctly expresses the answer with scientific notation.(5x10^3)(2.1x10^7)
1.05x10^9
1.05x10^7
1.05x10^8
1.05x10^14
Click here to see answer by josgarithmetic(39617)

Question 1043983: If u and v are the roots of the equation of , prove that .
Click here to see answer by Timnewman(323)

Question 1043985: The sum of two numbers is 20. If x represents one number and y represents the sum of the squares of the numbers, express y as a function of x.
Click here to see answer by Timnewman(323)

Question 1044052: A farmer with 120 meters of fencing wants to enclose a rectangular lot. One side of the lot will not need fencing. If x denotes the length of one side and y is the area of the lot, express y as a function of x.
Click here to see answer by josgarithmetic(39617)

Question 1044070: Good Morning !
How would I complete the square on

Thank you in advance !
Click here to see answer by Fombitz(32388)

Question 1044071: Good Morning !
How would I set this up and solve?
A rectangular park is miles long and miles wide. How long is a pedestrian path that runs diagonally across the park ?
Thank you for your help:)
Click here to see answer by ankor@dixie-net.com(22740)

Question 1044085: Hello,
I need help with the following math problem:
"The equation describes the height (in feet) of a ball tossed up in the air at 26 feet per second from a height of 105 feet above the ground. In how many seconds will the ball hit the ground? Express your answer as a decimal rounded to the nearest tenth."
Thank you,
Nicole
Click here to see answer by advanced_Learner(501)

Question 1044084: Hello,
I need help with the following math problem:
"What is the product of all constants such that the quadratic can be factored in the form , where and are integers?"
Thank you,
Nicole
Click here to see answer by robertb(5830)

Question 1044113: Solve 4^x X 3^2x

Click here to see answer by advanced_Learner(501)

Question 1044160: If 4/8 is taken away from 9/12 what is left. What is the answer solutions
Click here to see answer by Alan3354(69443)

Question 1044159: Takw away 5/9 from 9/12.
Click here to see answer by Alan3354(69443)

Question 1044171: Find T
6-2t>18
Click here to see answer by josgarithmetic(39617)

Question 1044171: Find T
6-2t>18
Click here to see answer by ikleyn(52777)

Question 1044182: Problem: The height (H) of the ball thrown into the air with an initial velocity of 9.8 m/s from a height of 2 m above the ground is given by the equation H(t)=-4.9t^2+9.8t+2, where t is the time in seconds that the ball has been in the air
Question: Find the value of t to determine the time it takes the ball to reach 4 m
Click here to see answer by ikleyn(52777)

Question 1044241: I am not understanding these at all. Can someone help me with this example?
Given the quadratic function f(x) = 3x2 + 6x - 4
a. Find the vertex
b. Find the axis of symmetry
c. Find the x- and y-intercepts
d. State the domain and range of the function
e. Find the interval(s) over which the function is increasing
f. Find the interval(s) over which the function is decreasing
g. Graph the function

Click here to see answer by rothauserc(4718)

Question 1044324: Hello, I am preparing for a test and I would like to know how to solve problems using a quadratic equation. For example : "The length of a book is 4 cm more than its width and the area of the face of the book is 320 cm^2. Find the dimensions of the face of the book."
Click here to see answer by josgarithmetic(39617)

Question 1044334: add.reduce the sum to lowest terms whenever possible 1/4+1/12+5/6
Click here to see answer by Edwin McCravy(20054)

Question 1044348: Why cant the coeficient of the quadratic term be equal to zero?
Click here to see answer by josgarithmetic(39617)

Question 1044337: Find the Maximum rectangular area that can be enclosed by a fence that is 224 m. Show your solution
Click here to see answer by ikleyn(52777)

Question 1044387: Hello,
I need help with the following problem:
A painting with dimensions 10 inches by 14 inches is placed in a picture frame, increasing its area to 221 square inches. How many inches is the thickness of the picture frame?
Thanks,
Nicole
Click here to see answer by jorel555(1290)

Question 1044335: The distance traveled by a falling object is d/2=12t^2, where T is the time in seconds. After how many seconds has the object traveled 400m. Show your solution
Click here to see answer by jorel555(1290)

Question 1044382: A wire of length 200cm is cut into two parts and each part is bent tp form a square if the area of the larger square is 9 times the area of the smaller square. Find the perimeter of the larger square.
Click here to see answer by ikleyn(52777)

Question 1044363: How to solve equations transformable? if the given like this(m-4)+(m-7)=15.
,,,the close parenthesis is squred..but i dont know how to put squared.
Click here to see answer by Alan3354(69443)

Question 1044393: Hello,
I need help with the following problem:
Undersea explorers discover a second sentient race living on Earth. This species is scientifically much more advanced but cannot share its discoveries because it uses a different system of units. Human scientists first try to convert between units of length: they measure a meter as 12 bap'ai and 2 bok'ai or alternatively 10 bap'ai and 10 bok'ai. In centimeters, how much distance is 5 bap'ai and 3 bok'ai?
Thanks,
Nicole
Click here to see answer by rothauserc(4718)

Question 1044454: Solve by factoring and using the principle of zero products.
4x^2=-11x-6. please help me and show work. I know the answer is X=-2,-3/4 but I didn't solve it the way they wanted me to. Thank you for your help
Click here to see answer by MathLover1(20849)

Question 1044502: the rate of tax is 18% charged on retail price before chargin calculate sale price?

Click here to see answer by Alan3354(69443)

Question 1044679: how to solve
x squared+4x+3
step by step in short form
Click here to see answer by ikleyn(52777)

Question 1044679: how to solve
x squared+4x+3
step by step in short form
Click here to see answer by MaxWong(38)

Question 1041054: \[f(\sqrt{x + 1}) = \frac{1}{x}\]
for all $x \ge -1,$ $x\neq 0.$ Find $f(2)$.
Click here to see answer by MaxWong(38)

Question 1035900: How to simplify this?
I did this equation here : y�-4y-x
Using bhaskara:
-(-4)�√(-4)�-4*1*(-1x)
----------------------- ->(this means a division)
2*1
And then, I got into this, and I don't know how to solve. Well, it's a forming Law of a function:
4�√16+4x
--------
2

Click here to see answer by MaxWong(38)

Question 1044740: The measure of one complementary angle is 4/5 the measure of the other angle .Write an equation and find the measure of each angle

Click here to see answer by MathLover1(20849)

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, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240