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Alan3354 answered: 30973 problems
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Points-lines-and-rays/612683: How to find angle made by line in yz plane with x axis?
1 solutions

Answer 385663 by Alan3354(30993) About Me  on 2012-05-19 13:55:02 (Show Source):
You can put this solution on YOUR website!
How to find angle made by line in yz plane with x axis?
--------
All lines in the yz plane are perpendicular to the x-axis.


Travel_Word_Problems/612679: If a man ran 1/5 of mile in 12 minutes ,what is his speed in miles per hour?

1 solutions

Answer 385662 by Alan3354(30993) About Me  on 2012-05-19 13:49:51 (Show Source):
You can put this solution on YOUR website!
If a man ran 1/5 of mile in 12 minutes ,what is his speed in miles per hour?
--------
12 mins = 12/60 hour = 1/5 hour
----
d = r*t
r = d/t = (1/5)/(1/5)
r = 1 mi/hr
============
I wouldn't call that running.
Slow crawling, maybe.


Expressions-with-variables/612669:
please and thank you
1 solutions

Answer 385661 by Alan3354(30993) About Me  on 2012-05-19 13:48:05 (Show Source):
You can put this solution on YOUR website!
xy+8=z for x
-----------
Get x on one side of =
----
xy+8=z for x
Subtract 8
xy = z - 8
divide by y
x = (z - 8)/y


Exponents-negative-and-fractional/612630: what is the slope and y-intercept of:
5-3y=7x
-2x+4-3=0
9x-2-(7/3)=0
8-(x/3)-(y/5)=0
1 solutions

Answer 385654 by Alan3354(30993) About Me  on 2012-05-19 13:23:34 (Show Source):
You can put this solution on YOUR website!
what is the slope and y-intercept of:
5-3y=7x
-2x+4-3=0
9x-2-(7/3)=0
8-(x/3)-(y/5)=0
----------
Put them in slope-intercept form -- y = mx + b
m = slope
b = y-intercept
-----
That might sound complicated, but all you do is solve for y.
----
5-3y=7x
y = (-7/3)x + 5
m = -7/3, b = 5
-------
-2x+4-3=0
There's no y term in this one.
x = 1/2
For all values of y, x = 1/2
That's parallel to the y-axis, or "vertical"
--> m is undefined, or infinite
Since it's parallel, it doesn't intercept the y-axis, there's on b
------------
9x-2-(7/3)=0
Same as above, no y
--------------
8-(x/3)-(y/5)=0
Solve for y, same as #1


Travel_Word_Problems/612671: If I'm driving 80 miles an hour and my destanation is 80 miles away how long will it take me to get there
1 solutions

Answer 385651 by Alan3354(30993) About Me  on 2012-05-19 13:17:14 (Show Source):
You can put this solution on YOUR website!
If I'm driving 80 miles an hour and my destanation is 80 miles away how long will it take me to get there
---------
80 miles/hr means you go 80 miles in 1 hour.
-----
d = r*t
t = d/r


logarithm/612661: how is it that,log6 to the power of 4 plus log 6 to the power of 9 equals 2. I got this problem but the answer makes no sense.
1 solutions

Answer 385642 by Alan3354(30993) About Me  on 2012-05-19 11:58:46 (Show Source):
You can put this solution on YOUR website!
how is it that,log6 to the power of 4 plus log 6 to the power of 9 equals 2. I got this problem but the answer makes no sense.
------------
log%286%5E4%29+%2B+log%286%5E9%29+=+log%286%5E13%29
It doesn't = 2.
------------
Maybe you mean:
log%286%2C4%29+%2B+log%286%2C9%29+=+log%286%2C36%29
= 2, since 6^2 = 36
------------
It's not 6 to the power of 4, it's the log of 4, base 6.


Mixture_Word_Problems/612662: how many gallons of gas would you get if you buy 10 liters worth?

1 solutions

Answer 385641 by Alan3354(30993) About Me  on 2012-05-19 11:56:35 (Show Source):
You can put this solution on YOUR website!
how many gallons of gas would you get if you buy 10 liters worth?
-------
1 gallon =~ 3.785 liters
If you buy 10 liters, you get ~10/3.785 =~ 2.642 gallons
----
I don't know what "worth" means.
-----
You might buy $5 worth of gas, but not 10 liters "worth", or 10 gallons "worth"


Equations/612618: i want to know examples of equations
1 solutions

Answer 385637 by Alan3354(30993) About Me  on 2012-05-19 10:55:16 (Show Source):
You can put this solution on YOUR website!
i want to know examples of equations
-------
Anything with an equal sign.
x = 4
y+=+x%5E3
----
Look at the solved problems on this site.


Circles/612647: What is a reasonable estimate for the area of a circlewith the radius 4 cm?

1 solutions

Answer 385635 by Alan3354(30993) About Me  on 2012-05-19 10:09:26 (Show Source):
You can put this solution on YOUR website!
What is a reasonable estimate for the area of a circlewith the radius 4 cm?
--------
It's 8*pi cm
-----
reasonable is a loosely defined term, it varies with the individual.


Length-and-distance/612627: show rhat the points A(-2,2) B(5,-5) C(4,2) are located on a circle with center w(1,-2) . what is the radius of the circle
1 solutions

Answer 385633 by Alan3354(30993) About Me  on 2012-05-19 09:50:13 (Show Source):
You can put this solution on YOUR website!
show rhat the points A(-2,2) B(5,-5) C(4,2) are located on a circle with center w(1,-2) . what is the radius of the circle
------------
Find the distance squared from the center to each point.
----
From (1,-2) to A:
r%5E2+=+diffy%5E2+%2B+diffx%5E2+=+4%5E2+%2B+3%5E2+=+25
----
Do the same for B & C. If they're equal, they on the circle.
-----
r^2 = 25
r = 5


Polynomials-and-rational-expressions/612582: Complete the ordered pair y=x+7,(,2)(7,)

1 solutions

Answer 385603 by Alan3354(30993) About Me  on 2012-05-18 20:38:30 (Show Source):


Polynomials-and-rational-expressions/612583: complete the ordered pair for the equation y=7x,(3,)(,14)
1 solutions

Answer 385601 by Alan3354(30993) About Me  on 2012-05-18 19:54:37 (Show Source):
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complete the ordered pair for the equation y=7x,(3,)(,14)
-------
y = 7x
x = 3
y = ?
----------
y = 7x
y = 14
x = ?


Polynomials-and-rational-expressions/612584: Add these two polynomials: (6x2 + 3x + 4) + (7x2 – 4x + 2 )
1 solutions

Answer 385598 by Alan3354(30993) About Me  on 2012-05-18 19:39:00 (Show Source):
You can put this solution on YOUR website!
Add these two polynomials: (6x2 + 3x + 4) + (7x2 – 4x + 2 )
---------
Add the like terms.
Add 6x%5E2+%2B+7x%5E2
3x - 4x
4 + 2


percentage/612455: What is 765% rounded to the nearest tenth percent

1 solutions

Answer 385581 by Alan3354(30993) About Me  on 2012-05-18 18:30:47 (Show Source):
You can put this solution on YOUR website!
What is 765% rounded to the nearest tenth percent
--------
765% is the nearest 1/10 %


Circles/612486: find the area of an annulus when inner circle diameter is 6 and outer circle is 10
1 solutions

Answer 385504 by Alan3354(30993) About Me  on 2012-05-18 12:57:51 (Show Source):
You can put this solution on YOUR website!
find the area of an annulus when inner circle diameter is 6 and outer circle is 10
------------
R = outside radius = 5
r = inside radius = 3
-------------
Area+=+pi%2AR%5E2+-+pi%2Ar%5E2


Surface-area/612436: Consider the cube-pyramid structure described in yesterday's problem. Find the path that begins and ends that the same vertex and visits each vertex exactly once. How long is the path?
1 solutions

Answer 385470 by Alan3354(30993) About Me  on 2012-05-18 11:30:16 (Show Source):
You can put this solution on YOUR website!
Consider the cube-pyramid structure described in yesterday's problem. Find the path that begins and ends that the same vertex and visits each vertex exactly once. How long is the path?
----------
I didn't have that problem yesterday.


Sequences-and-series/612406: Hello, can someone help me calculate this factorial expression. Thank you.
(60!68!34!)/248!
1 solutions

Answer 385464 by Alan3354(30993) About Me  on 2012-05-18 10:53:15 (Show Source):
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=~ 5.684831077E-450


Volume/612433: A cone hold 40 ml of water how much would half the cone hold?
1 solutions

Answer 385461 by Alan3354(30993) About Me  on 2012-05-18 10:43:34 (Show Source):
You can put this solution on YOUR website!
A cone hold 40 ml of water how much would half the cone hold?
----------
Half of what?
The height? radius? volume?


Permutations/612429: how do you write 1/10 of a centimeter in decimals
1 solutions

Answer 385457 by Alan3354(30993) About Me  on 2012-05-18 10:27:45 (Show Source):
You can put this solution on YOUR website!
how do you write 1/10 of a centimeter in decimals
-------
= 0.1 cm


Equations/612316: Two numbers 2^59 and 3^x are added ,if 5 is at the unit's place of the result, then value of x is?
1 solutions

Answer 385445 by Alan3354(30993) About Me  on 2012-05-18 09:38:25 (Show Source):
You can put this solution on YOUR website!
Two numbers 2^59 and 3^x are added ,if 5 is at the unit's place of the result, then value of x is?
-------------
2^59 has a 1's digit = 8
3^x has to have a 7
-------
x = 3 + 4n, n = 0,1,2,3...


Graphs/612374: 75 dollars per person and 10 dollars per person, 40 dollars for lift ticket,520 ship fee how do i graph that
1 solutions

Answer 385444 by Alan3354(30993) About Me  on 2012-05-18 09:35:20 (Show Source):
You can put this solution on YOUR website!
75 dollars per person and 10 dollars per person, 40 dollars for lift ticket,520 ship fee how do i graph that
----------------
1st, decide what you want to graph


Angles/612411: What are the measures of two complementary angles if the difference of their measures is 18°?



36°, 54°



41°, 49°



81°, 99°



86°, 94°
1 solutions

Answer 385443 by Alan3354(30993) About Me  on 2012-05-18 09:33:15 (Show Source):
You can put this solution on YOUR website!
What are the measures of two complementary angles if the difference of their measures is 18°?
--------------
The difference is 18
The sum is 90


Pythagorean-theorem/612336: how far east of frankfort is atlanta round all answers to one decimal place

1 solutions

Answer 385438 by Alan3354(30993) About Me  on 2012-05-18 09:21:24 (Show Source):
You can put this solution on YOUR website!
how far east of frankfort is atlanta round all answers to one decimal place
--------
That's not a math problem


Travel_Word_Problems/612397: how long will your trip take (in hours) if you travel 350km at an average speed of 80km/hr?

1 solutions

Answer 385435 by Alan3354(30993) About Me  on 2012-05-18 09:19:03 (Show Source):
You can put this solution on YOUR website!
how long will your trip take (in hours) if you travel 350km at an average speed of 80km/hr?
--------
d = r*t
t = d/r


logarithm/612343: Whats is equivalent to logo(5)111?
A.log(10)5+log(10)111 B.log(10)5-log(10)111
C.(log(10)5(log(10)111 D.log(10)111/log(10)5
I used (10) because I cant put log^10 going down.
1 solutions

Answer 385390 by Alan3354(30993) About Me  on 2012-05-18 07:03:14 (Show Source):
You can put this solution on YOUR website!
log%285%2C111%29
----------
= log(111)/log(5)
---------
10 is the default base and is assumed if nothing is specified.


Exponents-negative-and-fractional/612273: Can negative (-1/12) to the 3rd power be solved?
1 solutions

Answer 385349 by Alan3354(30993) About Me  on 2012-05-17 22:04:05 (Show Source):
You can put this solution on YOUR website!
Can negative (-1/12) to the 3rd power be solved?
------------
Equations are solved.
They have variables that you solve for.
This is not an equation.
-----------
%28-1%2F12%29%5E3+=+-1%2F1728
It's a number


Polynomials-and-rational-expressions/612186: 81n^5p
1 solutions

Answer 385307 by Alan3354(30993) About Me  on 2012-05-17 18:37:11 (Show Source):
You can put this solution on YOUR website!
81n^5p
-------
Do you have a question?


Trigonometry-basics/612149: tan pie/12

1 solutions

Answer 385301 by Alan3354(30993) About Me  on 2012-05-17 18:10:53 (Show Source):
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Pie is a dessert
Use pi, the Greek letter.


Polygons/612163: Find the measrue of an angle in each polygon if the polygon is regular. Round to the nearest tenth of a degree if necessary.
1. dodecagon (12-sided)
2. 14-gon
3. 18-gon
4. 36-gon
1 solutions

Answer 385300 by Alan3354(30993) About Me  on 2012-05-17 18:09:51 (Show Source):
You can put this solution on YOUR website!
Find the measrue of an angle in each polygon if the polygon is regular. Round to the nearest tenth of a degree if necessary.
-----
The sum of the exterior for all polygons is 360 degrees
Divide 360 by the # of sides.
The interior angle = 180 - exterior
---------------
1. dodecagon (12-sided)
2. 14-gon
3. 18-gon
4. 36-gon


Equations/612174: what is 2 1/8 multplied by 3

1 solutions

Answer 385299 by Alan3354(30993) About Me  on 2012-05-17 18:07:59 (Show Source):
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what is 2 1/8 multplied by 3
---------
6 3/8


test/612095: if 3 cats can catch 3 rats in 3 minutes, how many cats are needed to catch 100 rats in 100 minutes?
1 solutions

Answer 385288 by Alan3354(30993) About Me  on 2012-05-17 16:13:35 (Show Source):
You can put this solution on YOUR website!
if 3 cats can catch 3 rats in 3 minutes, how many cats are needed to catch 100 rats in 100 minutes?
---------
3
If it's not obvious, I can expound.