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Alan3354 answered: 30925 problems
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What is the total area of this cylinder? 1 solutions
Answer 328862 by Alan3354(30945) on 2011-08-10 11:20:26 (Show Source):
You can put this solution on YOUR website!I have a cylinder with a 2.5 cm radius and a 6cm height . What is the total area of this cylinder?
------------
Lateral area (the curved part) = 2*pi*r*h
Top and bottom area =  each
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Systems-of-equations/480091: Find the slope-intercept form, standard form and point slope form of the equation of the line
described
A line with y-intercept of (0, -3) and x-intercept of (-5, 0) 1 solutions
Answer 328855 by Alan3354(30945) on 2011-08-10 10:28:36 (Show Source):
You can put this solution on YOUR website!Find the slope-intercept form, standard form and point slope form of the equation of the line
described
A line with y-intercept of (0, -3) and x-intercept of (-5, 0)
------------------
If the y-int is (0,A) and the x-int is (B,0), the eqn is
Ax + By + AB = 0
------------
-3x - 5y + 15 = 0
3x + 5y = 15 standard form
----------
y = (-3/5)x + 3 slope-intercept form
--------------------------------
You can do it like this, too
Find the slope, m = diffy/diffx = 3/-5 = -3/5
Use y = mx + b and either point to find b (we'll pretend we don't know it)
-3 = (-3/5)*0 + b
b = -3
--> y = (-3/5)x - 3 slope-int form
3x + 5y = 15
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Evaluation_Word_Problems/480031: The circle passes through the points (0,3),(2,4),(1,0). Find the equation of the circle
1 solutions
Answer 328842 by Alan3354(30945) on 2011-08-10 09:13:33 (Show Source):
You can put this solution on YOUR website!One way to do this:
Label the points, say A, B and C
A(0,3)
B(2,4)
C(1,0)
-----------
Find the perpendicular bisectors of AB and BC (any 2)
Solve those 2 equations, the solution is the center of the circle, point P(x,y)
----------
Find the distance from P to A, B or C, that's the radius.
---------
Then  Px and Py are x & y of point P.
-------------------
I prefer to use determinants, and I have an Excel sheet thst does them.
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Rectangles/480018: hi um i just want to no what is the area of a square which has a perimeter of 92 meters if you no it please may i have the answer thanx alot. 1 solutions
Answer 328839 by Alan3354(30945) on 2011-08-10 08:57:29 (Show Source):
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test/479922: A line passes through (1,-5) and (-3,7) write an equation for the line in point - slope form 1 solutions
Answer 328808 by Alan3354(30945) on 2011-08-09 22:43:19 (Show Source):
You can put this solution on YOUR website!A line passes through (1,-5) and (-3,7) write an equation for the line in point - slope form
-------------
m = diffy/diffx = 12/-4
m = -3
---------
y = mx + b
Use either point
-5 = -3 + b
b = -2
---------
y = -3x - 2
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test/479959: The product of my 3 digit is 30. When you add my 1 digit and my 10 digit together the sum is my 100th digit. And my 1 digit is 3. 1 solutions
Answer 328806 by Alan3354(30945) on 2011-08-09 22:39:05 (Show Source):
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Rectangles/479967: what is the width of a rectangle with a perimeter of 70 feet if its lenght is 1 foot? 2 feet? l feet? 1 solutions
Answer 328803 by Alan3354(30945) on 2011-08-09 22:29:20 (Show Source):
You can put this solution on YOUR website!what is the width of a rectangle with a perimeter of 70 feet if its lenght is 1 foot?
34 feet
---------
2 feet?
33 feet
-------
l feet?
35-L
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test/479956: Your question goes here. Write clearly! We are not mind readers, so be sure to ask a question that we can understand. 1 solutions
Answer 328799 by Alan3354(30945) on 2011-08-09 22:24:59 (Show Source):
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test/479963: Your question goes here. Write clearly! We are not mind readers, so be sure to ask a question that we can understand. 1 solutions
Answer 328798 by Alan3354(30945) on 2011-08-09 22:24:42 (Show Source):
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Linear-systems/479829: i really need help on solving linear equations with elimination in non- standard form the equation is 2y=4x-16
5y=4x+8
Thanks for your help 1 solutions
Answer 328740 by Alan3354(30945) on 2011-08-09 16:38:31 (Show Source):
You can put this solution on YOUR website!2y=4x-16
5y=4x+8
----------- Subtract
-3y=-24
y = 8
------
5y=4x+8
5*8 = 4x + 8
4x + 8 = 40
x = 8
--------------
Form doesn't matter, just look for the most direct way to solve them.
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Mixture_Word_Problems/479810: 2m^3 of soil containing 35% sand was mixed into 6m^3 of soil containing 15% sand. What is the sand content of the mixture? 1 solutions
Answer 328737 by Alan3354(30945) on 2011-08-09 16:20:27 (Show Source):
You can put this solution on YOUR website!2m^3 of soil containing 35% sand was mixed into 6m^3 of soil containing 15% sand. What is the sand content of the mixture?
--------------
2*0.35 = 0.7 cm of sand
6*0.15 = 0.9 cm of sand
--------------------
--> 1.6 m^3 of sand in 8 m^3
1.6/8 = 0.2 = 20% sand
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Evaluation_Word_Problems/479793: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
-3x + 6y = -3
-6x + 4y = -10
1 solutions
Answer 328732 by Alan3354(30945) on 2011-08-09 15:59:02 (Show Source):
You can put this solution on YOUR website!-3x + 6y = -3
-6x + 4y = -10
---------------
divide the 2nd eqn by 2, then subtract.
Solve for y.
Sub for y to solve for x.
Show your work.
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Linear-equations/479780: could you help me to solve the equation 6y−9=4x+9 for y?
I found that it has more than one answer, but the website doesn't accept.
Thank you. 1 solutions
Answer 328718 by Alan3354(30945) on 2011-08-09 15:21:15 (Show Source):
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Surface-area/479658: Two round fountains are similar. One measures 7'2" across and the other measures 12'1" across. Find the scale factor from the small one to the large one.
Thank you! 1 solutions
Answer 328716 by Alan3354(30945) on 2011-08-09 15:18:25 (Show Source):
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Rate-of-work-word-problems/479775: paul can mow the grass in 50 minutes, but it takes Dan three timese longer. how long will it take them to mow the grass if they worked together? 1 solutions
Answer 328713 by Alan3354(30945) on 2011-08-09 15:14:26 (Show Source):
You can put this solution on YOUR website!paul can mow the grass in 50 minutes, but it takes Dan three timese longer. how long will it take them to mow the grass if they worked together?
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Paul does 1/50 of the job per minute.
3 times longer is 150 minutes longer = 200 minutes
Dan does 1/200 per minute.
Together, they do 1/50 + 1/200 per minte = 1/40 per minute
--> 40 minutes
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Angles/479660: Find the approximate value of the volume of the right circular cone, 12cm x 10cm with a circular base shown below. Approximate your solution to the nearest hundredth 1 solutions
Answer 328708 by Alan3354(30945) on 2011-08-09 15:07:19 (Show Source):
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Geometry_Word_Problems/479655: A circular flower garden has a diameter of 18 ft. Around the garden there is a circular sidewalk which is 2 ft wide. What is the length around the outer edge of the sidewalk? (Hint: Make a drawing.) 1 solutions
Answer 328695 by Alan3354(30945) on 2011-08-09 14:26:52 (Show Source):
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Finance/479707: i need help with algebra i want to learn can you help me? 1 solutions
Answer 328691 by Alan3354(30945) on 2011-08-09 14:13:04 (Show Source):
You can put this solution on YOUR website!Start by looking at the solved problems on this site.
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