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

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Algebra: Functions, Domain, NOT graphing

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Question 65124: 3. What answer do you get when you evaluate this algebraic expression x(x – 1), given x = -4?
Click here to see answer by 303795(562)

Question 65123: 3. What answer do you het when you evaluate this algebraic expression x(x – 1), given x = -4?
Click here to see answer by 303795(562)

Question 65121: Whats the answer when you evaluate this algebraic expression 4x – 2, given x = 2
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Question 65207: find the slope of a line for this points (-1,3) and(3,-4)
Click here to see answer by stanbon(26278)

Question 65213: find the point of intersction forthe line below using elimation 2x+3y=6, -2x+y=10
Click here to see answer by stanbon(26278)

Question 65217: multiply (x+16)(x-7)
Click here to see answer by stanbon(26278)

Question 65208: find the slope of a line for this points (-1,3) and(3,-4)
Click here to see answer by checkley71(8405)

Question 65206: find the slope of a line for this points (-1,3) and(3,-4)
Click here to see answer by rchill(405)

Question 65211: find the point of intersction forthe line below using substitution 3x-2y=5,y=3x-4
Click here to see answer by rchill(405)

Question 65212: find the point of intersction forthe line below using elimation 3x+4y=-2, 2x+5y=1
Click here to see answer by checkley71(8405)

Question 65210: find the equation of a line for this points (4,1) and is perpendicular to the line 2y-3x=4
Click here to see answer by checkley71(8405)

Question 65205: find the equation of a line for this points (4,-2) and (0,3)

0
Click here to see answer by checkley71(8405)

Question 65204: 3x-2[y-2(x+3[2x+3y])]
simplify
Click here to see answer by Edwin McCravy(2922)

Question 65215: simplify (3xsquared-8x+6)+(-xsquared-3x+4)
Click here to see answer by funmath(2873)

Question 65209: find the equation of a line for this points (6,2) and is parallel to the line 2x-3y=-3
Click here to see answer by funmath(2873)

Question 65209: find the equation of a line for this points (6,2) and is parallel to the line 2x-3y=-3
Click here to see answer by stanbon(26278)

Question 65273: A park has two sprinkers that are used to fill a fountain.One sprinker can fill the fountain in 3 hours and the second sprinker can fill the fountain in 6 hours. How long will it take to fill the fountain with both sprinkers operating.
Click here to see answer by chitra(359)

Question 65203: 3y<-x=6
-y>-2x=4
solve by graping
there is a line under the < and >
Click here to see answer by stanbon(26278)

Question 65293: Hi! I need some help with this problem and there is 3 parts to it.
#1. Is f(x)=3x-3 a function?
#2. Evaluate f(a+1) for f defined in problem #1.
#3. What are the domain and range for f defined in problem #1?
Thanks so much for your help!
Click here to see answer by funmath(2873)

Question 65292: Is {(1,1),(2,1),(2,2) and (1,2)} a function?
Click here to see answer by funmath(2873)

Question 65281: y=x-5
is this function increasing, decreasing, or constant
Click here to see answer by checkley71(8405)

Question 65351: factor(x^2+7x-18)
Click here to see answer by babynarah2007(12)

Question 65351: factor(x^2+7x-18)
Click here to see answer by 303795(562)

Question 65348: factor(x^2+3x-40)
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Question 65347: factor(x^2+5x-36)
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Question 65350: factor(3x^2-17x+10)
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Question 65339: 3/8x-1/6x=4 solve
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Question 65342: mulitiply (x+6)(x^3-3x^2-5x+1)
Click here to see answer by chitra(359)

Question 65343: divide (a^3-5a^2+13x-14)/(a-2)
Click here to see answer by Edwin McCravy(2922)

Question 65346: 3x10^-3/15x10^2 simplify
Click here to see answer by tutorcecilia(2042)

Question 65400: (4x^4-49) Factor
Click here to see answer by stanbon(26278)

Question 65404: 3a/a-2-5a/a+1
Click here to see answer by stanbon(26278)

Question 65404: 3a/a-2-5a/a+1
Click here to see answer by chitra(359)

Question 65398: Write 87,000,000 in scientific notation
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Question 65407: solve 6/x-5=1/x
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Question 65409:
Click here to see answer by chitra(359)

Question 65399: Factor (x^2-14x+24)
Click here to see answer by babynarah2007(12)

Question 65396: (4a^3b^-3c^2)^3/(-2a^-2b^2c^-1)^4
Click here to see answer by funmath(2873)

Question 65437: a caterer estimates that 3 gallons of coffee will serve 48 people. how much coffee is necessary to serve 144 people?
Click here to see answer by stanbon(26278)

Question 65442: the speed,v, of a gear varies inversely as the number of teeth,t. if a gear that has 36 teeth makes 30 revolutions per minute, how many revolutions per minute will a gear that has 54 teeth make?
Click here to see answer by stanbon(26278)

Question 65439: the pressure,p, on a diver in the water varies directly as the depth,d. if the pressure is 6 lb/sq.in. when the depth is 12 feet, what is the pressure when the depth is 16 ft?
Click here to see answer by stanbon(26278)

Question 65446: a canoeist can travel 10 mph in calm water. the amount of time it takes to travel 60 miles with the current is the same amount of time it takes to travel 40 miles against the current. find the rate of the current.
Click here to see answer by checkley71(8405)

Question 65434: a commercial jet travels 2400 miles in the same amount of time it takes a corporate jet to travel 1600 miles. the rate of the commercial jet is 200 mph faster than the rate of the corporate jet. find the rate of each jet.
Click here to see answer by checkley71(8405)

Question 65496: 34-3x=14x
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