Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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Question 1116402: A man rode his bicycle 90 miles. If he had traveled 2/11 mile more per hour, he would have made the trip in ten minutes less time. How long did the trip last?

Click here to see answer by MathTherapy(10552) About Me 

Question 1116668: Use transformations of the graph of y = x^4 or y = x^5 to graph f(x)=(x+1)^4 and f(x)=-x^5.
Click here to see answer by MathLover1(20849) About Me 

Question 1116751: Y=7+2x
Click here to see answer by ikleyn(52780) About Me 

Question 1116825: Writing inequality for
A number is at least -43

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Question 1117088: Write the slope-intercept inequality for the graph below (1,2) (3,-2)
Click here to see answer by josgarithmetic(39617) About Me 

Question 1117121: if x^2 -16√(x) =12 then x-2√(x) = ??
Click here to see answer by ankor@dixie-net.com(22740) About Me 
Question 1117121: if x^2 -16√(x) =12 then x-2√(x) = ??
Click here to see answer by ikleyn(52780) About Me 

Question 1117182: What the next in the series 7,14,10,5,8,16,12,6,9,..,...
Click here to see answer by Boreal(15235) About Me 

Question 1117134: if y=f((2x-1)/(x^2+1)) , f'(x)=sin(x^2) find dy/dx
Click here to see answer by KMST(5328) About Me 

Question 1117219: What the next in the series 4,7,3,6,9,5,10,13,9,..,....,...
Click here to see answer by greenestamps(13200) About Me 

Question 1115302: Solve 3cos^3 (x) +sin^3 (x) +sin(x) =0
Click here to see answer by Fombitz(32388) About Me 

Question 1115340: Solve the equation.
Sin(3x) cos(60-4x)-1=0

Click here to see answer by Fombitz(32388) About Me 

Question 1117348: Without using L'Hospitals rule find :
Limt((e^(17x)-17e^x +16)/(e^(16x)-16e^x+15)). as x=0

Click here to see answer by ikleyn(52780) About Me 

Question 1117173: find:A10 , A11 in (4,7,3,6,9,5,10,13,9,A10,A11,....)

Click here to see answer by ikleyn(52780) About Me 

Question 1117172: if =(4,7,3,6,9,5,10,13,9,A10,A11,....)
find:A10 ,A11

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Question 1117377: Prove that. (11/24) =< int(sqrt(1-x^2))dx =< (11/24)*(sqrt(4/3)),on [0,1/2] ,int means integral
Click here to see answer by solver91311(24713) About Me 

Question 1117376:
2) prove that : (11/24) =< integral(sqrt(1-x^2))dx =< (11/24)(sqrt(4/3)) , on
[0,1/2]

Click here to see answer by solver91311(24713) About Me 

Question 1117473: Graph the line that has an x-intercept of 3 and a y-intercept of -5.

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Question 1117547: In the equation h(t)=16t^2+115t+15 if a rocket is launched from a platform where h=height and t=time, what is the height of the platform?
Click here to see answer by solver91311(24713) About Me 

Question 1117573: How would I go about solving this? The problem tells me to enter the inequality to the palette.
X > -5
-

Click here to see answer by Alan3354(69443) About Me 

Question 1117597: Jim is currently 120 km from home and drives at a rate of 55 km/hr towards home. Tim is 25 km from home and drives at a rate of 65 km/hr away from home. When will Jim and Tim meet each other on the road. Find the answer by graphing.
Please have the graph.

Click here to see answer by solver91311(24713) About Me 
Question 1117597: Jim is currently 120 km from home and drives at a rate of 55 km/hr towards home. Tim is 25 km from home and drives at a rate of 65 km/hr away from home. When will Jim and Tim meet each other on the road. Find the answer by graphing.
Please have the graph.

Click here to see answer by ikleyn(52780) About Me 

Question 1117610: Evaluate: int(sqrt(1+x^3))dx
Click here to see answer by solver91311(24713) About Me 

Question 1117791: Hi there, how would you find the range of y=absx/x ?
How do you find it without graphing it? ie. in an exam situation where you don't have much time

Click here to see answer by josgarithmetic(39617) About Me 
Question 1117791: Hi there, how would you find the range of y=absx/x ?
How do you find it without graphing it? ie. in an exam situation where you don't have much time

Click here to see answer by ikleyn(52780) About Me 

Question 1117867: Without using l’Hopital’s Rule or Series find
Limit(((1+x)^(1/x)-e)/x) as x=0

Click here to see answer by math_helper(2461) About Me 

Question 1117609: find upper and lower bounds for the value of int((xln(x))^2)dx on [1,3]
Click here to see answer by Fombitz(32388) About Me 

Question 1117866: Without using l’Hopital’s Rule or Series find
Limit(tan(x))^(2x-pi) as x=pi/2

Click here to see answer by math_helper(2461) About Me 

Question 1118096: Is the relationship shown by the data linear? If so,if so model the data with equation x-9-5-1 3 y-2-7-12-17
Click here to see answer by ikleyn(52780) About Me 

Question 1118224: Find the domain of the function: f(x)=3x+2 / 2x^2-x
Click here to see answer by Boreal(15235) About Me 

Question 1118223: Write the set using the interval notation
{𝑥|𝑥 ≤ −1 𝑜𝑟 𝑥 > 2}

Click here to see answer by rothauserc(4718) About Me 
Question 1118223: Write the set using the interval notation
{𝑥|𝑥 ≤ −1 𝑜𝑟 𝑥 > 2}

Click here to see answer by greenestamps(13200) About Me 

Question 1118359: Please help me to understand how to do "optimization"
Objective function: C = 8x+10y Maximize
Constraints
2x+y _< 12
x+3y _< 21
X_>0, y_>0
Then I need to graph it?

Click here to see answer by ankor@dixie-net.com(22740) About Me 
Question 1118359: Please help me to understand how to do "optimization"
Objective function: C = 8x+10y Maximize
Constraints
2x+y _< 12
x+3y _< 21
X_>0, y_>0
Then I need to graph it?

Click here to see answer by greenestamps(13200) About Me 
Question 1118359: Please help me to understand how to do "optimization"
Objective function: C = 8x+10y Maximize
Constraints
2x+y _< 12
x+3y _< 21
X_>0, y_>0
Then I need to graph it?

Click here to see answer by ikleyn(52780) About Me 

Question 1118364: Help please
The area enclosed by the two curves and the x axis from x=0 to x=2 is rotated around the y axis. Find the volume of revolution in exact form

Click here to see answer by greenestamps(13200) About Me 

Question 1118505: If 0< x <1 , 0< y <1
prove that 0< x+y-xy <1

Click here to see answer by t0hierry(194) About Me 

Question 1118504: If 0 < x < 1 , 0 < y < 1 prove that 0 < x + y - xy < 1
Click here to see answer by solver91311(24713) About Me 
Question 1118504: If 0 < x < 1 , 0 < y < 1 prove that 0 < x + y - xy < 1
Click here to see answer by greenestamps(13200) About Me 

Question 1118567: For safety reasons, a rollercoaster at an amusement park has restrictions on the physical size of all passengers. In order to ride, all passengers must be at least 48 inches tall and weigh a minimum of 80 pounds. Let x represent a passenger's height and y represent a passenger's weight. Write a system of inequalities describing the physical attributes of all eligible passengers.
Click here to see answer by Theo(13342) About Me 

Question 1118566: For an upcoming event, a 2500 seat arena is selling tickets for $25 and $15. At least 1000 tickets must be priced at $15 and total sales need to exceed $10,000 to make a profit. Let x represent the number of tickets priced at $25 and y represent the number of tickets priced at $15. Write a system of inequalities that shows the possible combinations of ticket sales in order to make a profit.
Click here to see answer by Theo(13342) About Me 

Question 1118568: You are buying movie passes and gift certificates as prizes for an event. You need at least 5 movie passes and 2 gift certificates. A movie pass costs $6 and a gift certificate cost $10. The most you can spend is $70.
a) Write a system of linear inequalities that shoes the number of movie passes x and gift certificates y that can be purchased.
b) Graph the system
c) Use the graph to determine if you can buy 6 movie passes and 3 gift certificates.

Click here to see answer by Theo(13342) About Me 

Question 1118646: Find f(7)+f^-1(7) if f(3x-2)=x+5
Click here to see answer by greenestamps(13200) About Me 
Question 1118646: Find f(7)+f^-1(7) if f(3x-2)=x+5
Click here to see answer by ikleyn(52780) About Me 

Question 1118654: Prove that: tan(pi/7)tan(2pi/7)tan(3pi/7)=sqrt(7)
Click here to see answer by ikleyn(52780) About Me 

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