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Today,
01:21 PM
Denis
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
You don't have a pencil?
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6 replies | 31 view(s)
Today,
01:19 PM
Denis
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
AGREE...good advice!!
see more
6 replies | 31 view(s)
Today,
01:15 PM
JeffM
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
You are correct, but you still are not showing your work. Just telling you whether your answer is right or wrong does not let us see what you are...
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6 replies | 31 view(s)
Today,
12:21 PM
shahar
started a thread
Triviaility vs. Intuition
in
Advanced Math
If I say that something has triviality context, can I say that something is intuition? Is Triviality = intuition?!
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0 replies | 6 view(s)
Today,
11:01 AM
Dr.Peterson
replied to a thread
integrate Area of a rt triangle w/ hypotenuse=r, horizontal=x, vertical=sqrt(r2-x2)
in
Calculus
Keep in mind that this arose when you were wrongly taking r as a constant; so that your integral represents not a triangle, but part of a circle. ...
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11 replies | 240 view(s)
Today,
10:59 AM
spaceshowfeature1
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
The answer I got for the problem you gave me is: 2<x<3 or in interval notation: (2,3)
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6 replies | 31 view(s)
Today,
10:44 AM
spaceshowfeature1
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
Thank you! I will solve and use Symbolab. Have a great day!
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6 replies | 31 view(s)
Today,
10:35 AM
JeffM
replied to a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
You can easily make them up. (ax \pm b)^2 = ax^2 \pm 2abx + b^2. Substitute any integers for a and b, and you have the type of polynomial you...
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6 replies | 31 view(s)
Today,
10:27 AM
sinx
replied to a thread
integrate Area of a rt triangle w/ hypotenuse=r, horizontal=x, vertical=sqrt(r2-x2)
in
Calculus
yes, and in this exercise there arose an integration puzzle. how to integrate Z=int sqrt (r2-x2)dx? , where r is constant, limits for x=0, b ...
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11 replies | 240 view(s)
Today,
10:26 AM
lookagain
replied to a thread
Where's the fallacy in this proof? (that 1 - 1 equals 2)
in
Beginning Algebra
Other than missing an open parenthesis (by typo?), the plus or minus symbol should not be there: \{(-1)^{1/2}\}^ \ = \ (i)^2 \ = \ -1. ...
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3 replies | 125 view(s)
Today,
10:17 AM
spaceshowfeature1
started a thread
Help Finding Perfect Square Inequalities Practice Problems
in
Intermediate/Advanced Algebra
I need help finding specific problems for polynomial Inequalities. Every problem I’ve attempted with perfect squares has ended up wrong. I’ve...
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6 replies | 31 view(s)
Today,
09:43 AM
JeffM
replied to a thread
weird conic section problem
in
Intermediate/Advanced Algebra
My problem with this problem is that we do not know what an algebra student is expected to know. It is not trivial to prove that, if a tangent...
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7 replies | 101 view(s)
Today,
07:29 AM
HallsofIvy
replied to a thread
Radicals and rational exponents: How is "30 = 1" a true statement?
in
Beginning Algebra
We can, by simply counting positive integer exponents, get the very nice formula a^ma^n= a^{m+n} (for example, a^3a^2= (a\cdot a\cdot a)(a\cdot a)=...
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5 replies | 237 view(s)
Today,
07:12 AM
HallsofIvy
replied to a thread
weird conic section problem
in
Intermediate/Advanced Algebra
No, not "random" tangents! There are only two lines through (-3, 0) that are tangent to y^2= x+ 1. Before you can draw them you have to determine...
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7 replies | 101 view(s)
Yesterday,
11:05 PM
Dr.Peterson
replied to a thread
Possible values of the probability density function (1/a)e^-((y-b)/a)?
in
Probability / Statistics
So, when you asked about "possible values of the pdf", you were really asking for "possible values" of the random variable, in the sense of values of...
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4 replies | 100 view(s)
Yesterday,
10:27 PM
Dr.Peterson
replied to a thread
weird conic section problem
in
Intermediate/Advanced Algebra
Okay, it looks like they just want an approximate sketch first, so you see what the situation is like. Then they are leading you through a...
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7 replies | 101 view(s)
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