Questions on Algebra: Inequalities, trichotomy answered by real tutors!

Tutors Answer Your Questions about Inequalities (FREE)

Question 145027:
Find the midpoint between these points:
(-3, 7) and (4, -5)

Click here to see answer by Alan3354(31510)

Question 145026: Solve for x. Collect xs on the LEFT side. The solution should be presented with x first, the correct inequality symbol, then the number.
- x + 4 – 9x + 3 > 7(x – 2)

I am really having difficulties on these 4 problems, the other 36 are a breeze.
Click here to see answer by stanbon(57956)

Question 145024: Solve for x. Collect xs on the LEFT side. The solution should be presented with x first, the correct inequality symbol, then the number.

5(2x – 7) < -8
Click here to see answer by nerdybill(7003)

Question 145025: Fill in the chart given this linear equation:
y = -7x – 4
**Type all your work below the chart.
x y
-2
-1
0
1
2

Click here to see answer by solver91311(17075)

Question 145182: Graph the compound inequality. Write the solution using interval notation.
x<-4 or x>2
Click here to see answer by Edwin McCravy(8999)

Question 145242: I have two problems I need assistance with. I just need to know how to solve the questions.
1. if y=e with an exponant of 4 then In y= ?
2. find the rate of change of y, when y=30 + 4x, over the interal x=2 to x=4?
Click here to see answer by rapaljer(4667)

Question 145395: Professor Williamson counts his midterms as 2/3 of the grade and his final as 1/3. Wendy scored only a 48 on the midterm. What range of score on the final would put Wendy's average between 70 and 79 inclusive?
Click here to see answer by ankor@dixie-net.com(15746)

Question 145394: Ronald wants to sell his car through a broker who charges a 10% commission of the selling price. Ronald still owes $11,025 on the car. What is the range of the selling price?
Click here to see answer by Alan3354(31510)

Question 145493:
Can anyone please Solve the inequality 4x <12 than sketch the solution set on the real number line. Thank You

Click here to see answer by jim_thompson5910(28704)

Question 145562: Perform the specified operations and write your answer in standard form.

(4+ 3i)(-7 + 4i) (eg. 2, D, E)
College Algebra ISBN-13: 978-0-618-77629-0
Thanks
Click here to see answer by Earlsdon(6294)

Question 145555:
Solve the inequality x squar > 16 and give the answer in interval notation.
This would be x squar - 16> 0 so graph y = x squar - 16 and look for where it is above the x-axis.
I use College Algebra Book ISBN-13 978-0-618-77629-0
Thank You
Click here to see answer by stanbon(57956)

Question 145560:
Find the solutions of x 3 square - 5x 2 square - x + 5 = 0. (eg.2)
I use College Algebra ISBN-13 978-0-618-77629-0
Thanks
Click here to see answer by Earlsdon(6294)

Question 145588: Please help me with this problem Thanks it says solve the following inequal. show a number line as your solution and give the interval notation for the solution

5x-9>2x-7

5[3m-(m+4)]<-2(m-4) same directions as the first thanks again!!
Click here to see answer by jim_thompson5910(28704)

Question 145557: Solve the inequality -4 <(2x-3)/3<4 and sketch the solution set on the real number line.
Thank You
Click here to see answer by edjones(7569)

Question 145711: Solve the inequalit 4 - 2x < 3 and sketch the solution set on the real number line.
Thanks
College Algebra ISBN-13: 978-0-618-77629-0
Click here to see answer by jim_thompson5910(28704)

Question 145561:
Find the solutions of 3x2/3 + 8x1/3 - 3 = 0.(eg.3 with u = x 1/3)
College Algebra ISBN-13: 978-0-618-77629-0
Thanks
Click here to see answer by stanbon(57956)

Question 145922: Could you describe to me what the graph of interval (-4,10) looks like?
Click here to see answer by jim_thompson5910(28704)

Question 145944: Solve;

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Question 145948: The body mass index, I, can be used to determine an individuals risk for heart disease. An index less than 25 indicates a low risk. The body mass index is given by the formula or model where w=weight, in pounds and h=height, in inches.

Francis weighs 168 pounds and stands 68 inches tall. What is his approximate body mass index? Find an inequality describing all weights w that Francis can have and be in the low-risk category.
Click here to see answer by jim_thompson5910(28704)

Question 145813: |(h-57.5) over 2| less than or equal to 3.25
Click here to see answer by ankor@dixie-net.com(15746)

Question 145950: Bayside Insurance offers two health plans. Under plan A, Giselle would have to pay the first $50 of her medical bills, plus 25% of the rest. Under plan B, Giselle would pay the first $230, but only 20% of the rest. For what amount of medical bills will plan B save Giselle money? Assume she has over $230 in bills.

Suppose Giselle has a certain amount in medical bills, such as $5000. How much would she pay under each plan?

Click here to see answer by jim_thompson5910(28704)

Question 145952: Solve
=2< x+4< 12

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Question 145953: Solve

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Question 145954: Solve and graph

x+8<-6 or x+8>3
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Question 145959: Graph the inequality on a plane

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Question 145960: Graph the inequality on a plane

y>6x
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Question 145961: Determine whether the ordered pair is a solution of the inequality

(-4,8); 7x+y<-9
Click here to see answer by jim_thompson5910(28704)

Question 145962: In order to achieve maximum results from aerobic exercise, one should maintain one's heart rat at a certain level. A 45 year old woman with a resting heart rate of 80 beats per minute, should keep her heart rate between 137 and 156 beats per minute while exercising. She checks her pulse for 10 sec while exercising. What should the number of beats be?

Click here to see answer by jim_thompson5910(28704)

Question 145999: A special coffee blend is made from two varieties of brew, one that costs $4.00/lb and another that costs $2.00/lb. How many pounds of each type are needed to make 20 kg of a blend worth $2.50/lb?
Click here to see answer by ankor@dixie-net.com(15746)

Question 146051: Please help me solve this problem. 3/4(3x -1/2) -2/3 < 1/3
I went over the examples again and again and I don't understand why you would not find the common denominator of all fractions and multiply. I am totally lost with this one. Thanks for the help!
Click here to see answer by Earlsdon(6294)

Question 146058: Solve
Click here to see answer by jim_thompson5910(28704)

Question 146059: Solve
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Question 146060: Solve
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Question 146067: 1) Determine whether the given numbers are solutions of the inequality.
5,-13,-18,-1

Click here to see answer by jim_thompson5910(28704)

Question 146068: 15) Solve -5< x+3 <5
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Question 146070: 19) Solve

4x-7 <-5 or 4x-7 > 2 8 8

Click here to see answer by jim_thompson5910(28704)

Question 146193: Solve then graph or
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Question 146194: Solve the graph 1-2x > 7 and 4x-3 > 21
Click here to see answer by jim_thompson5910(28704)

Question 146195: Graph and write an interval notation
6 < x < 18
Click here to see answer by jim_thompson5910(28704)

Question 146197: Determine whether the ordered pair is a solution of the inequality
(-3,6); 6x+y < -2
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Question 146323: Determine whether the given numbers are solutions of the inequality
x-2>9; -4,0,5,15
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Question 146324: 6+S+3>5
-12 < P-8
d+3 less than or equal to -5
Click here to see answer by checkley77(12569)

Question 146396: Graph the system of inequalities

x<=2
y>=-2x+3
Click here to see answer by jim_thompson5910(28704)

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