Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

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Question 466530: What is the domain of
Click here to see answer by Theo(13342)

Question 466530: What is the domain of
Click here to see answer by richard1234(7193)

Question 466452: x^3+3x^2-5x-15=
Factor by grouping?
Click here to see answer by scott8148(6628)

Question 466604: f(3t)=3x^2+4x-5 find
Click here to see answer by richard1234(7193)

Question 466645: Please help me solve this:
for the given function f anf g, find the indicated composition
f(x)=x^2-2x+2 g(x)=x^2-2x-2
(fog)(-2)
Click here to see answer by stanbon(75887)

Question 466624: The velocity v (in feet per second) of a rock dropped into a well is related to time (in seconds) by the formula v = 32t. What is the velocity of the rock at the indicated instant? Write your answer in the form (t, v).
(a) when the rock is released
( , )
(b) after 6 seconds
( , )
Click here to see answer by Alan3354(69443)

Question 466834: 3.Given that f(x) = 3x + 1, g(x) = x2 �2x - 6 , find (g o f)(-2) and f/g(0).
Click here to see answer by robertb(5830)

Question 466981: kindly answer this one with solution
Find the domain and range of y = x2 +3x -2?

Click here to see answer by stanbon(75887)

Question 466981: kindly answer this one with solution
Find the domain and range of y = x2 +3x -2?

Click here to see answer by Edwin McCravy(20054)

Question 467072: (Can you please help me solve this problem) Write the first ten terms of a sequence whose first term is -10 and whose common difference is -2.
Click here to see answer by Big Poop(157)

Question 467071: (Can you please help me solvethis problem) Write the first ten terms of a sequence whose first term is -10 and whose common difference is -2.
Click here to see answer by Big Poop(157)

Question 467182: Given the function g(x)=15+(x^2)/25 , let g(5n)=8n for some n. What is one possible value of n?
Click here to see answer by Big Poop(157)

Question 467749: are all linear equations functions?

Click here to see answer by gwendolyn(128)

Question 467987: Describe the transformations on the following graph of
f(x)=e^x. State the placement of the horizontal asymptote
and y-intercept after the transformation. For example,
horizontal shift to the left 1 or reflected about the
y-axis are descriptions.

Graph of f(x) =e^x

a) g(x) = e^x - 4
Description of transformation:
Equation(s) for the Horizontal Asymptote(s):
y-intercept in (x, y) form

b) h(x)=-e^x
Description of transformation:
Equation(s) for the Horizontal Asymptote(s):
y-intercept in (x,y) form:

Click here to see answer by ewatrrr(24785)

Question 467952: find the domain,f(t)=4.5et
Click here to see answer by stanbon(75887)

Question 467952: find the domain,f(t)=4.5et
Click here to see answer by tamecia59@msn.com(1)

Question 468054: Answer the questions about the given function
f(x)=-15x^2-17x
if f(x)=-2 what is x?
Click here to see answer by jorel1380(3719)

Question 467989: Find the domain of the following:

a) f(t)= 5.4e^t
Answer and explain how you obtained your answer.

b) g(x)=log(x+3)
Answer and explain how you obtained your answer.

c) g(x)=2^x
Answer and explain how you obtained your answer.

d) g(t)=ln(t-1)
Answer and explain how you obtained your answer.

Click here to see answer by edjones(8007)

Question 468159: Please I need hel

dipalma uivesity has a faculity reduction and lost 1/14 of its faculityu If 286 of it faculity was left after the reduction how many was there orginally.
Click here to see answer by rfer(16322)

Question 468163: When two gears are mashed the revolution per minutes (rpm) are inversely proportional to the number of teeth, as show below. In one machine the rpm ratio of the larger gear to the small gear is 2:7 The small gear has 100 teeth In second machine the larger gear revolves at 400 rpm and has 301 teeth. The smaller gear revolves at 700 rpm.
Find the number of teeth on the larger gear of the first machine?
Find the number of teeth on the small gear of the first machine?
Click here to see answer by Theo(13342)

Question 468348: What is the domain of the following function?
y = log(x + 5)
Click here to see answer by Tatiana_Stebko(1539)

Question 468339: im not sure how to solve this?http://media.apexlearning.com/Images/200505/25/6e56ea3c-c71d-48b7-9a14-4f141d642ada.gif
Click here to see answer by Alan3354(69443)

Question 468386: y = -6x + 2
is y a function of x?
Click here to see answer by nerdybill(7384)

Question 468600: Can you tell me the steps to solve: Find f(-3) when f(x)=|x-9| Thanks!
Click here to see answer by rfer(16322)

Question 468754: x+6y=9 x=2-6y is there a solution of ordered pair or none
I think there isnt one but double checking
Click here to see answer by algebrahouse.com(1659)

Question 468756: x+6y=9(1)
x=2-6y(2)

solve the following system of equations
What is the solution of the system?
I put the solution there is none. Is this correct isnt one but double checking
Click here to see answer by mananth(16946)

Question 468782: f(x)=4.5e^t
Click here to see answer by Alan3354(69443)

Question 468894: Can you please help me find the x-intercept for this equation:
Click here to see answer by stanbon(75887)

Question 469208: Simplify:
(x^3-19x-30)/(x+3)
Click here to see answer by MathLover1(20849)

Question 469265: Let g(x)=2x^2-4. If (f of g)(x)=x^2-4, find f(x).
Click here to see answer by lwsshak3(11628)

Question 469412: If "f" is a one-to-one function and f(6)=-8,f(-8)=-7, and f(-7)=6, find f^-1(-7)
a. -6
b. -8
c. -7
d. 6
e. 7
Click here to see answer by Tatiana_Stebko(1539)

Question 469418: Evaluate the expotential function below for x=-4.
J(x)=(1/8)^-4
a. 1/4096
b.8
c.1/512
d.4096
e.512
Click here to see answer by jorel1380(3719)

Question 469418: Evaluate the expotential function below for x=-4.
J(x)=(1/8)^-4
a. 1/4096
b.8
c.1/512
d.4096
e.512
Click here to see answer by ccs2011(207)

Question 469411: Assuming that g(x) has an inverse function, if g(-4)=-5 find g^-1(-5).
a.5
b.-5
c.-4
d.4
e.-1/5
Click here to see answer by Tatiana_Stebko(1539)

Question 469413: Use composition of functions to determine whether f(x)=7x+4 and g(x)=1/7x-4/7 are inverse of one another.
a.yes
b.no
Click here to see answer by robertb(5830)

Question 469417: Find the inverse function of f.
f(x)=(4x-5)/(7x-9) , x not equal to 9/7
Click here to see answer by robertb(5830)

Question 469431: f (x)= x +5 and g (x) =|x |, find (f� g)(-4) and (g� f)(-4)
Click here to see answer by Tatiana_Stebko(1539)

Question 469415: Find the inverse of the function below, if one exists.
{(-9,5),(-7,4),(-3,-7),(-1,7),(0,-4)}
a. {(-7,-3),(-4,0),(4,-7),(5,-9),(7,-1)}
b. {(-7,-1),(-5,-9),(-4,-7),(4,0),(7,-3)}
c. {(-7,1),(-5,9),(-4,7),(4,0),(7,3)}
d. no inverse exists
e. {(0,4),(1,-7),(3,7),(7,-4),(9,-5)}
Click here to see answer by Tatiana_Stebko(1539)

Question 469486: Tickets sold = $2052. Advance tickets $4.00 and $6.00 There were 3 times as many $4.00 sold than $6.00 How many of each were sold

Click here to see answer by ewatrrr(24785)

Question 469546: what is the domain of

f(x)= 3x-2
_______
x+1
Click here to see answer by Tatiana_Stebko(1539)

Question 469722: How do I determine when I use this format for listing domain sets {x|-3 is lessthan or = to x is less than or =5} or list them out seperately {-3,-2,-1,0,1,2,3,4,5}

Click here to see answer by edjones(8007)

Question 469848: The perimeter of a rectangle is 24 cm. Express the area of the rectangle in terms of the width x.
P=2L+2w
24=2L+2x
24/2=L+X
X=12/L

Click here to see answer by MathLover1(20849)

Question 469845: What is the number that will make this equation undefined? y = 4/(x +5)

Click here to see answer by sofiyac(983)

Question 469871: A line has a rise of 6 and a slope of 1/20. What is the run?
30
90
120
What is the answer please help.
Thankyou
Click here to see answer by sofiyac(983)

Question 470022: f(x)=x+5
g(x)=x^2-4x+5
h(x)=3x^2-2x+5
find
(f+g)(x)
find
(f*h)(x)
find
f[g(2)]
find
g[f(3)]
find
h[f(5)]-g[h(1)]
Click here to see answer by solver91311(24713)

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