24 items are filed under this topic.
 |
|
|
|
|
|
|
|
|
UFO speed in MPH from nearest galaxy in one year |
2021-05-22 |
|
From Joe:
If the next closest galaxy is 15 quadrillion miles away and there are 8760 hours
in one year; how fast would a UFO have to fly to travel from the next
galaxy, in MPH in one year ?
Google calculator gives this result: 1.7123288e+12
I don't understand what the "e+12" means.
How is that pronounced, ex. trillion, quadrillion etc..?
Answered by Harley. |
|
|
|
|
|
|
gcd(a^2 + b^2, a + b) |
2020-01-19 |
|
From Roger:
I am stuck with this problem: find the gcd(a^2+b^2, a+b), where a & b are relatively prime integers not both zero.
Answered by Penny Nom. |
|
|
|
|
|
|
cos (3pi/2 -x) |
2019-11-20 |
|
From sam:
1. express the following as a trigonometric function of angle x for cos (3pi/2 -x)
the answer in the textbook is -sin x but i am unsure of the process to get the answer.
Answered by Penny Nom. |
|
|
|
|
|
|
The domain of f + g |
2019-10-16 |
|
From Angel:
The domain of f+g when f(x)=8x+3 and g(x)=1-5x
Answered by Penny Nom. |
|
|
|
|
|
|
f(x + 2) |
2019-02-26 |
|
From a student:
How do you use f(x) = 3x+1 to determine the transformed function of f(x + 2)?
Answered by Penny Nom. |
|
|
|
|
|
|
y = g(x + 1) |
2017-06-27 |
|
From Shamsudiin:
HI there i am currently doing a level maths AS
I don't understand how to graph this Question y=g(x+1) i really need help please
please respond to this problem
Answered by Penny Nom. |
|
|
|
|
|
|
y = mx + c and Ax + By + C = 0 |
2016-10-18 |
|
From Erick:
please explain to me how to convert an equation from the form y=mx+c to Ax+By+C=o form.
Answered by Penny Nom. |
|
|
|
|
|
|
tan15° |
2016-04-11 |
|
From JOHN:
find the exact value of tan15° in surd form.
Answered by Penny Nom. |
|
|
|
|
|
|
Factor x^2 + y^2 |
2015-08-26 |
|
From Jerome:
Factor: x^2+y^2
Answered by Penny Nom. |
|
|
|
|
|
|
The slope of the line y=-2x+5 |
2013-12-29 |
|
From victoria:
what is the slope of the line with the equation y=-2x+5
Answered by Penny Nom. |
|
|
|
|
|
|
How can we draw the equation "x+y=1" in 3d? |
2013-05-03 |
|
From shimaa:
how can we draw the equation "x+y=1" in 3d
Answered by Robert Dawson. |
|
|
|
|
|
|
A chart for y=mx+b |
2013-03-11 |
|
From jacinda:
how to make a chart for y=mx+b
Answered by Penny Nom. |
|
|
|
|
|
|
Plotting y=f(x)+2 |
2013-01-21 |
|
From Gavin:
how would you plot y=f(x)+2
Answered by Penny Nom. |
|
|
|
|
|
|
The equation of a line |
2012-03-26 |
|
From Danielle:
Hello, could you help me figure out what the equation of the line is in the form of Ax+By=C with the points (-2,0) and (0,3)?
Thank You!
Answered by Penny Nom. |
|
|
|
|
|
|
Extended real numbers |
2011-12-12 |
|
From Justin:
Hi there, I was wondering does +infinity=+infinity in the extended real number system? Basically, I was wondering does +infinity=+infinity since -infinity and any extended real number (except +infinity) are less than +infinity?
Sincerely,
Justin
Answered by Robert Dawson. |
|
|
|
|
|
|
1^3 + 2^3 + 3^3 +4^3 ... n^3 = ? |
2010-01-29 |
|
From ireimaima:
Hi..
Can u please help me with this question..
I find that when i test eg: n=2 for n (n+1) /4,
it seems that it does not giving me the right answer of 1^3 + 2^3 = 9
but 3/2... i'm confuse..can u please help me..thanks so much
Prove that:
1^3 + 2^3 + 3^3 +4^3………………………………..n^3 = n (n+1) /4
Answered by Penny Nom. |
|
|
|
|
|
|
f(x + h)-f(x) |
2009-09-07 |
|
From Marie:
For each function defined as follows, find a.) f (x+h) b. f(x+h)-f(x) c. [f(x+h)- f(x)]/h.
Problem: f(x)= -1/ x^2.
Answered by Harley Weston. |
|
|
|
|
|
|
A word problem involving y = mx + b |
2009-04-24 |
|
From Devon:
I need to put the following question in to y=mx+b form
I rent a gym for $150.00 for 30 students. Another time I rent the gym for @270.00 for 70 students. I need to also find a fixed rate.
Answered by Stephen La Rocque. |
|
|
|
|
|
|
A line parallel to a given line |
2009-02-18 |
|
From Lisa:
I'm having a hard time understanding the concept of how to write an
equation of the line containing the given points and parallel to the given line.
Express the answer in the form of y=mx+b.
(7,9); 2x+5y=4. i would appreciate it alot if someone can show ne how
to do this. Thank you, Lisa
Answered by Penny Nom. |
|
|
|
|
|
|
For how many positive integers n is n^2 + 96 is a perfect square? |
2007-12-18 |
|
From Rajesh:
For how many positive integers n is n^2 + 96 is a perfect square ?
Answered by Penny Nom. |
|
|
|
|
|
|
Plotting a function |
2007-12-06 |
|
From Paula:
My son has a problem that says plot the point:
2x-3y=9
I have explained to him that there must be a function for y in order to plot that point, but he doesn't think so. The question above that one says find the function for y, and I assume we should use that function. Am I wrong? Can we plot a point without a y function.
Answered by Stephen La Rocque. |
|
|
|
|
|
|
y=mx+b |
2007-05-29 |
|
From molly:
Im having a problem with the y=mx+b for our homework we have a table that goes from 0 to 6 , 1 to 7 and 2 to 8 and we have to make a equation of that. Please help.
Answered by Penny Nom. |
|
|
|
|
|
|
f(x), f(x) + 2, f(x +2) |
2001-04-04 |
|
From Monica:
Could you explain to me how one should go about graphing functions such as f(x), f(x+2), and so on. Also, how should you explain things such as constants and relationships among functions?
Answered by Penny Nom. |
|
|
|
|
|
|
2^32 + 1 |
2000-04-08 |
|
From Un Etudiant:
232 +1 can be divided by 641 , why?
Answered by Claude Tradif. |
|
|
