• ### Can I be considered a mathematician?

I'm a computer engineer. I'm good at math and I love solving math problems. Do you think I can be considered mathematician?
I'm a computer engineer. I'm good at math and I love solving math problems. Do you think I can be considered mathematician?
5 answers · Mathematics · 5 months ago
• ### Do math teachers can be considered mathematicians?

Math teaches who teach on elementary or high school, and didn't take their master degree and Doctorate, do you think they can be considered mathematicians?
Math teaches who teach on elementary or high school, and didn't take their master degree and Doctorate, do you think they can be considered mathematicians?
9 answers · Mathematics · 5 months ago
• ### What will happen when someone blocks me on facebook?

What do you think will happen to my account of my facebook?
What do you think will happen to my account of my facebook?
2 answers · Polls & Surveys · 8 months ago
• ### Finding Maxima and Minima using Derivatives problem..?

If 2x + y = 10, find the minimum value of x^2 + y^2? choices a. 16 b. 20 c. 21.25 d. 25
If 2x + y = 10, find the minimum value of x^2 + y^2? choices a. 16 b. 20 c. 21.25 d. 25
7 answers · Mathematics · 8 months ago
• ### Partial derivative problem?

If f(x,y) = y^2cos(x) - x^3ln(y) find the 2nd partial derivative of ∂^2f/∂y∂x.. http://www.mathopolis.com/questions/q.ph...
If f(x,y) = y^2cos(x) - x^3ln(y) find the 2nd partial derivative of ∂^2f/∂y∂x.. http://www.mathopolis.com/questions/q.ph...
5 answers · Mathematics · 8 months ago
• ### Limits problem.?

The function f is defined by: f(x) = x - 2 for x <= 1(less than or equal to 1) f(x) = x^2 for x > 1 what is lim f(x) when x approuches 1. choices: a.- 1 b. 0 c. 1 d. the limit does not exist.
The function f is defined by: f(x) = x - 2 for x <= 1(less than or equal to 1) f(x) = x^2 for x > 1 what is lim f(x) when x approuches 1. choices: a.- 1 b. 0 c. 1 d. the limit does not exist.
6 answers · Mathematics · 9 months ago
• ### Eulers formula for complex number problem.?

Express - 5 + 2i in the form of re^(ix) choices. a. 5.385e^(-0.381i) b. 5.385e^(2.761i) c . 5.196^(2.761i) d. 5.385e^(-21.801i) May answer saw a. 5.385e^(-0.381i) which is wrong.. The correct answer was b. 5.385e^(2.761i).. may problem was How did they got the angle 2.761? my solution for solving the angle is x = tan^(-1)(2/-5) = - 0.381... show more
Express - 5 + 2i in the form of re^(ix) choices. a. 5.385e^(-0.381i) b. 5.385e^(2.761i) c . 5.196^(2.761i) d. 5.385e^(-21.801i) May answer saw a. 5.385e^(-0.381i) which is wrong.. The correct answer was b. 5.385e^(2.761i).. may problem was How did they got the angle 2.761? my solution for solving the angle is x = tan^(-1)(2/-5) = - 0.381 degrees. but I don't have any idea how they got the angle tan^(-1)(2/-5) = 2.761 degrees.. Please Help!
3 answers · Mathematics · 9 months ago
• ### Sequence and sums problem?

The numbers 1, 1, 1, 1, 1, 1, ...... are in choices a. Arithmetic sequence b. Geometric sequence c.Neither d. both arithmetic and geometric sequence
The numbers 1, 1, 1, 1, 1, 1, ...... are in choices a. Arithmetic sequence b. Geometric sequence c.Neither d. both arithmetic and geometric sequence
7 answers · Mathematics · 9 months ago
• ### Geometric sequence problem 2?

The sum of the first two terms of a Geometric Progression is 36 and the product of the first and third terms is 9 times the second term. Find the sum of the first 8 terms. choices a. 3480/81 b. 3280/81 c. 3680/81 d. 3880/81
The sum of the first two terms of a Geometric Progression is 36 and the product of the first and third terms is 9 times the second term. Find the sum of the first 8 terms. choices a. 3480/81 b. 3280/81 c. 3680/81 d. 3880/81
7 answers · Mathematics · 9 months ago
• ### Geometric sequence and sums problem.?

Add up all the terms of the following infinite geometric sequence: {1/3, - 1/9, 1/27, - 1/81} choices a. 1/2 b. 4/9 c. 1/3 d. 1/4
Add up all the terms of the following infinite geometric sequence: {1/3, - 1/9, 1/27, - 1/81} choices a. 1/2 b. 4/9 c. 1/3 d. 1/4
8 answers · Mathematics · 9 months ago
• ### Arithmetic sequence and Sums problem.?

What is the sum of the eleventh to twentieth terms (inclusive)of the arithmetic sequence 7, 12, 17, 22, ... ? choices: a. 154 b. 295 c. 795 d. 1,090 http://www.mathsisfun.com/algebra/sequen...
What is the sum of the eleventh to twentieth terms (inclusive)of the arithmetic sequence 7, 12, 17, 22, ... ? choices: a. 154 b. 295 c. 795 d. 1,090 http://www.mathsisfun.com/algebra/sequen...
3 answers · Mathematics · 9 months ago
• ### Change of variable question?

There is an example which is 3x^8 + 5x^4 − 2 = 0 it says when we use u = x^4 then it becomes:3u^2 + 5u − 2 = 0 I'm confuse, how did u = x^4 make 3x^8 + 5x^4 − 2 = 0 into 3u^2 + 5u − 2 = 0? Se more details here: http://www.mathsisfun.com/algebra/change...
There is an example which is 3x^8 + 5x^4 − 2 = 0 it says when we use u = x^4 then it becomes:3u^2 + 5u − 2 = 0 I'm confuse, how did u = x^4 make 3x^8 + 5x^4 − 2 = 0 into 3u^2 + 5u − 2 = 0? Se more details here: http://www.mathsisfun.com/algebra/change...
5 answers · Mathematics · 10 months ago
• ### Square root radical equation problem.?

Solve √(5+y^2) +√(5 - y^2) = 4 where y∈ R . Choices. A. y= ± 1 B. y = - 2 only C. y = 2 only D. y = ± 2 my answer from my solution is y = ± 2, but how can I determine its y∈ R?
Solve √(5+y^2) +√(5 - y^2) = 4 where y∈ R . Choices. A. y= ± 1 B. y = - 2 only C. y = 2 only D. y = ± 2 my answer from my solution is y = ± 2, but how can I determine its y∈ R?
4 answers · Mathematics · 10 months ago
• ### Approximation solution problem.?

Use the Function Grapher at http://www.mathsisfun.com/data/function-... to find an estimate for the positive solution of the equation 3x^6 − 6x^4 − 1 = 0 choices. A. 1.4 B. 1.41 C. 1.44 D. 1.5
Use the Function Grapher at http://www.mathsisfun.com/data/function-... to find an estimate for the positive solution of the equation 3x^6 − 6x^4 − 1 = 0 choices. A. 1.4 B. 1.41 C. 1.44 D. 1.5
1 answer · Mathematics · 10 months ago
• ### Graphing quadratic equation problem?

The above shows part of the graph of the function f(x) = -x2 − 8x − 7 What is the equation of its axis of symmetry? choices A. y = - 4 B. x= - 4 C. x = - 3 D. y = 9
The above shows part of the graph of the function f(x) = -x2 − 8x − 7 What is the equation of its axis of symmetry? choices A. y = - 4 B. x= - 4 C. x = - 3 D. y = 9
8 answers · Mathematics · 10 months ago
• ### Even and odd function problem?

The function shown in the graph is: A. Even B. Odd C. Neither Even nor Odd. D. Both even and Odd.
The function shown in the graph is: A. Even B. Odd C. Neither Even nor Odd. D. Both even and Odd.
3 answers · Mathematics · 10 months ago
• ### Increasing and Decreasing Functions problem.?

The graph of the function f(x) = 1/3x3 + x2 - 8x + 1 is shown above. For what values of x is the function f(x) = 1/3x^3 + x^2 - 8x + 1 strictly decreasing? choices A. On ( - ∞, - 4) and (2, + ∞) B On [- ∞, - 4] and [2, + ∞] C. On (-4,2) D. On [- 4, 2] This problem really confuses me.. Please explain how to solve this problem..
The graph of the function f(x) = 1/3x3 + x2 - 8x + 1 is shown above. For what values of x is the function f(x) = 1/3x^3 + x^2 - 8x + 1 strictly decreasing? choices A. On ( - ∞, - 4) and (2, + ∞) B On [- ∞, - 4] and [2, + ∞] C. On (-4,2) D. On [- 4, 2] This problem really confuses me.. Please explain how to solve this problem..
3 answers · Mathematics · 10 months ago
• ### Mid point of the line segment question?

What are the coordinates of the point that divides AB in the ratio 1 : 3. choice A. (0,3) B. (-3,5) C. (3,1) D. (-2, 4) My Question is, what does ratio 1:3 mean to this problem, and how can apply it? This problem confuses me..
What are the coordinates of the point that divides AB in the ratio 1 : 3. choice A. (0,3) B. (-3,5) C. (3,1) D. (-2, 4) My Question is, what does ratio 1:3 mean to this problem, and how can apply it? This problem confuses me..
8 answers · Mathematics · 10 months ago
• ### Slope question?

How can I determine the sign of the slope/gradient if it is negative or positive? Here is a figure of the graph.. I know the slope of the line is 2/3, I'm wondering what would be its sign?
How can I determine the sign of the slope/gradient if it is negative or positive? Here is a figure of the graph.. I know the slope of the line is 2/3, I'm wondering what would be its sign?
6 answers · Mathematics · 10 months ago
• ### How long does a priest work for a day?

Do you think is just a hour during Mass time?
Do you think is just a hour during Mass time?
12 answers · Religion & Spirituality · 11 months ago