Tutors Answer Your Questions about Inequalities (FREE)
Question 937448: Please help me with a math problem: Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Explain how the inequality demonstrates that fact.
Thanks :) :) :) :)
Click here to see answer by richard1234(7193)   |
Question 937448: Please help me with a math problem: Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Explain how the inequality demonstrates that fact.
Thanks :) :) :) :)
Click here to see answer by MathTherapy(10551)  |
Question 937680: Ok I have worked this several times and my answer keeps coming up with six but I don't have that number available on answer sheet what am I doing wrong the problem is x/3 = 2x + 7 what is the number. Equal to the sum
Click here to see answer by rothauserc(4718)  |
Question 937881: Not sure if this is the right section, question is on inequalities (don't know what trichotomy is).
Diagram shows a right angled triangle with short side of 3m, long side of x m, and another unknown hypotenuse value with no letter. Question:
Find the range of values of x, x E Z, so that the perimeter of the triangle is between 8m and 12m.
I've been doing okay up to now, but this question is annoying me as it has 2 unknowns.
I've tried this much, but it's getting me nowhere:
x^2 + 3^2 = y^2
8 < or = to x+y+3 > or = to 12.
Thanks.
Click here to see answer by josgarithmetic(39616) |
Question 938448: Nadia received quiz grades of 80, 86, 73, and 91.
a. what grade would she need to make on the fifth quiz to get a B average, that is, at least 80 but less than 90?
b. is it possible for Nadia to get an A average for her quizzes (at least 90)?
Click here to see answer by MathLover1(20849)  |
Question 938860: Translate each statement into symbols.
1.) 0 is greater than -1/2 and less than 1. (I put -1/2 < 0 < 1)
2.) 5 is between -9 and 9. (I put -9 < 5 < 9)
3.) -1.5 is less than -1 and -1 is less than 2. (I put -1.5 < -1 < 2)
Classify each statement as true or false.
1.) The absolute value of -0.5 is less than or equal to -0.5 (I put false)
2.) -6 < 1 < 7 (I put true)
3.) -5 < -4 < 4 (I put true)
Hopefully you can help me if I get them wrong. I tried really hard! I'm just trying to get used to this.
Click here to see answer by ewatrrr(24785)  |
Question 941113: What are the subsets of the set?
{-3,6}
a. 0 (with a / through it), {-3}, {6}
b. 0 (with a / through it), {-3}, {6}, {-3,6}
c. {-3}, {6}
d. {-3}, {6}, {-3,6}
Click here to see answer by Fombitz(32388)  |
Question 941111: Suppose U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} is the universal set, and P = {2, 4, 6, 8, 10}. What is p'?
Click here to see answer by Fombitz(32388) |
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