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• Today, 11:09 AM
Hint: discriminant of a quadratic equation.
1 replies | 50 view(s)
• Today, 05:32 AM
I am not sure - but I think the formula for future value is (1) FV = D*- 1]/(r/n)
3 replies | 48 view(s)
• Today, 05:20 AM
As posted this problem statement is incomplete. Please post the complete problem - exactly.
3 replies | 64 view(s)
• Yesterday, 07:52 PM
That is incorrect. How did you derive those? Let the speed of the swimmer = s the speed of the current = c
4 replies | 86 view(s)
• Yesterday, 01:41 PM
use y^2 = 3x^2 x^3 - 3xy^2 = 4 - 3(x^2 + y^2) x^3 - 9x^3 = 4 - 3(x^2 + 3x^2) 2x^3 - 3x^2 + 1 = 0 (x-1)(2x^2 - x - 1) = 0
7 replies | 153 view(s)
• Yesterday, 10:44 AM
Hint: (a + b)^3 = a^3 + 3 * a * b^2 + 3 * b * a^2 + b^3
3 replies | 79 view(s)
• Yesterday, 10:41 AM
If you look at the equation for calculating standard deviation, you will see that it does not change due to addition of constant to the data points....
4 replies | 117 view(s)
• Yesterday, 09:10 AM
You are absolutely correct. 7/(x*3)=5 multiply both sides by (x*3). You get: ......................................edited 7 = 5 *...
5 replies | 120 view(s)
• Yesterday, 09:01 AM
What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll...
2 replies | 81 view(s)
• Yesterday, 08:59 AM
What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll...
2 replies | 54 view(s)
• 04-22-2018, 04:57 PM
So start: ( x + iy)^2 + 3 * (x - iy) = 4/(x + iy) simplify and equate the real and the imaginary part - independently to zero. You will get...
7 replies | 153 view(s)
• 04-22-2018, 04:48 PM
Calculate: How many gallons of gas did you sell for 396.2? How much did you pay for those gallons of gasses? And then loss......
1 replies | 86 view(s)
• 04-22-2018, 11:37 AM
What do you exactly mean by: Find the value of z complex: Is it : calculate the "magnitude" of \ z?
7 replies | 153 view(s)
• 04-22-2018, 09:54 AM
Can you solve for 'x' from the following equation: 7/(x*3)=5 Can you please discuss the steps?
5 replies | 120 view(s)
• 04-22-2018, 09:52 AM
In your class (or in your textbook) this question must have been discussed. What did those (your classnotes and/or textbook) say?
1 replies | 89 view(s)
• 04-21-2018, 08:52 AM
You can confirm your answer by substituting the calculated values in the given equation and check for "equality".
1 replies | 106 view(s)
• 04-21-2018, 08:49 AM
Let n= the number of attempts and x=the number of successes. then x/n = 0.78 ............(1) and x/(n+1) = 0.7 .......(2) If you divide...
1 replies | 75 view(s)
• 04-21-2018, 08:35 AM
Please tell us what formulae you know for calculating mortgage payment
2 replies | 162 view(s)
• 04-21-2018, 08:33 AM
Please share your work in calculating A and B. We can show you then how you can use those processes to compute (C).
2 replies | 63 view(s)
• 04-20-2018, 01:07 PM
What are the differences between f(x) and F(x) ?
2 replies | 60 view(s)
• 04-20-2018, 01:00 PM
What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll...
3 replies | 119 view(s)
• 04-19-2018, 01:01 PM
Nine cupcakes! .... in one sitting!!!
4 replies | 174 view(s)
• 04-19-2018, 09:00 AM
There are multiple ways to do perform this task. I would do the following way: Find a point (P) on the given line. Find the equation of the...
5 replies | 165 view(s)
• 04-18-2018, 02:07 PM
This is a quadratic equation! How many real solutions can it have? What will be the condition under which it will have ONE real solution?
3 replies | 167 view(s)
• 04-18-2018, 09:51 AM
Did you perform the first task as described in the problem: Assume first that the progress ratio in this industry is 80%. We can then derive the...
1 replies | 89 view(s)
• 04-18-2018, 09:47 AM
Exactly which step you don't understand? The first step was to re-write the inner-most √2 as 2˝ and continue re-writing from there!
2 replies | 112 view(s)
• 04-17-2018, 06:38 PM
For problem (1) - rewrite as: (x + 5/2)2 + y2 = (5/2)2 Continue.......
6 replies | 191 view(s)
• 04-16-2018, 07:56 PM
What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll...
3 replies | 131 view(s)
• 04-16-2018, 09:03 AM
What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll...
3 replies | 92 view(s)
• 04-16-2018, 09:02 AM
What are your thoughts? Please share your work with us ...even if you know it is wrong. If you are stuck at the beginning tell us and we'll...
1 replies | 58 view(s)
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“... mathematics is only the art of saying the same thing in different words” - B. Russell

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