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Parallelograms/576612: What is the height of a parallelogram in which the area equals 96 centimeters squared and the base equals 8x centimeters. I started with, 96=8x(h) to get the height and got 96=8xh but I don't know if that is right. But I tried to go further and got 12=xh. I don't know what to do after that... 1 solutions
Answer 369916 by solver91311(16885) on 2012-02-22 19:55:25 (Show Source):
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Triangles/576581: One leg of a right triangle measures 5 inches; the hypotenuse measures 13 inches. What is the measure, in inches, of the other leg? 1 solutions
Answer 369900 by solver91311(16885) on 2012-02-22 19:17:23 (Show Source):
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Average/576499: 2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
A. 2 hours and 24 minutes
B. 3 hours and 12 minutes
C. 3 hours and 44 minutes
D. 4 hours and 10 minutes
E. 4 hours and 33 minutes
1 solutions
Answer 369872 by solver91311(16885) on 2012-02-22 17:23:28 (Show Source):
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Circles/576486: If my paper says to find the circumference of a circle whose raius is 4 inches, what do I do? I understand that you multiply the 4 by 2, but it also says to use 3.14 for pi. I do not understand what 3.14 has to do with the problem when it wants me to show the solution/formula. This is what I did: 2×4 = 8 inches 1 solutions
Answer 369869 by solver91311(16885) on 2012-02-22 17:19:12 (Show Source):
You can put this solution on YOUR website!
, a trancendental irrational number approximated by the rational number 3.14, is the ratio between the circumference and the diameter of any circle. The diameter of a circle is 2 times the radius, so by multiplying the radius of 4 by 2, you managed to discover the measure of the diameter, which is, indeed, 8. But in order to determine an approximate value of the circumference of the circle, that is, the distance around the circle (as opposed to the distance straight across through the center which is the diameter).
So what you have to do is multiply 8 times 3.14 to get a two-decimal place accurate approximation of the measure of the circumference.
By the way, the only way to represent the circumference exactly is to write
John

My calculator said it, I believe it, that settles it
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Equations/576464: Find the equation of the line perpendicular to 2x+3y=12 and passes thru the point (-4,6) 1 solutions
Answer 369855 by solver91311(16885) on 2012-02-22 16:42:03 (Show Source):
You can put this solution on YOUR website!
Since in the given equation the and terms are on the same side of the equals sign, take the opposite of the coefficent on and divide by the coefficient on to find the slope of the line represented by the given equation.
Use the point-slope form of an equation of a line to write the desired equation:
where are the coordinates of the given point and is the calculated slope.
Put the derived equation into either Standard or Slope-Intercept Form as desired by your teacher/professor/instructor.0
However, please note that you cannot write "the" equation of any line. You can only write "an" equation of a line. In the first place, you could just substitute the values in the point-slope form and have an equation of the desired line, or you could solve for to put it into slope-intercept form, or you could rearrange it into standard form, namely . Furthermore, for a given , , and , where describes a set of equations with an infinite number of elements, each of which graphs to the same line in .
John

My calculator said it, I believe it, that settles it
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Geometry_proofs/576401: how do you do 2 column geometry proofs ? 1 solutions
Answer 369841 by solver91311(16885) on 2012-02-22 15:32:53 (Show Source):
You can put this solution on YOUR website!
In column 1, write what you are given. In column 2, state the reason for the statement in column 1 as "Given"
In column 1, write some statement that follows from the givens. In column 2, states the reason for the new statement by identifying the applicable Postulate, Definition, or Theorem.
Continue writing new statements and supporting them with either Postulate, Definition, Theorem, or Given until you are able to state what it is you started out to prove in the first place.
Never assume ANYTHING. You have to be able to conclusively prove EVERY statement you make. Some teachers are more rigorous than others. For example, in some Geometry classes you can use the ideas of congruence of angles and the equality of angle measures interchangeably. Other teachers/instructors/professors will require that knowing two angles are congruent is insufficient to be able to use the equality of their measures without the intermediate step of saying that the measures are equal because of the definition of congruence.
"But how do I know what statements to make?" Use your imagination and logic to derive a strategy based on everything you have learned previously, then follow your strategy step by step. Every proof is different, so there is no generic answer to "How do I do proofs." Sorry about that, but the whole purpose of studying Geometry is to teach you how to creatively solve problems based solely on what you already know and extend that to what you are trying to find out. The only way to be successful is to practice the art and spend a good deal of time at it. Enjoy.
John

My calculator said it, I believe it, that settles it
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Linear-equations/576396: I need step by step instructions on how to solve the following:
Michael Franklin has $26,000 invested in stock A and stock B. Stock A currently sells for $30 a share and stock B sells for $70 a share. If stock B triples in value and stock A goes up 50%, his stock will be worth $60,000. How many shares of each stock does he own? 1 solutions
Answer 369834 by solver91311(16885) on 2012-02-22 15:17:11 (Show Source):
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�t�e�s�t/576361: I already did 6-9. I ONLY NEED HELP WITH 1-5!!!!!!! Please show work so I can learn.
LINK:
https://docs.google.com/viewer?a=v&q=cache:Qja-NvrMYucJ:hwp.ocps.net/tl/steffep/steffep_Algebra%2520II%2520Honors%2520Pre-IB_files/3.1%2520Worksheet.pdf+what+were+the+headlines+after+a+mad+scientist+trained+two+eggs+worksheet&hl=en&gl=us&pid=bl&srcid=ADGEESgLsFzq6aXSdMldHfGKduxl2-0L57DQedchj_0JNx0fJ7eByuB-MZUnHXd-7hLKHx3dv-e0Gd3D61OxbssilDgVs5BLfKY3E6H-_ENLrIb5_xRfSje6BpeHItEVncVmHEIBXU9m&sig=AHIEtbS3ixkYVhKwUPaV13jHGJLin65vhA
1 solutions
Answer 369817 by solver91311(16885) on 2012-02-22 14:14:11 (Show Source):
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Functions/576349: I need help understanding how is equal to
I've tried to figure out how that is the answer but the factor with the multipilicty of 3 throws me off. Please help me, thank you! 1 solutions
Answer 369815 by solver91311(16885) on 2012-02-22 14:03:51 (Show Source):
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logarithm/576337: find the values of the following logs, Given: Log 4 = M and log 7 = P Answers will be in terms of M and P
log40
Thanks sooooo much!! 1 solutions
Answer 369811 by solver91311(16885) on 2012-02-22 13:31:04 (Show Source):
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�t�e�s�t/576335: I already did 6-9. I ONLY NEED HELP WITH 1-5!!!!!!! Please show work so I can learn.
LINK:
https://docs.google.com/viewer?a=v&q=cache:Qja-NvrMYucJ:hwp.ocps.net/tl/steffep/steffep_Algebra%2520II%2520Honors%2520Pre-IB_files/3.1%2520Worksheet.pdf+what+were+the+headlines+after+a+mad+scientist+trained+two+eggs+worksheet&hl=en&gl=us&pid=bl&srcid=ADGEESgLsFzq6aXSdMldHfGKduxl2-0L57DQedchj_0JNx0fJ7eByuB-MZUnHXd-7hLKHx3dv-e0Gd3D61OxbssilDgVs5BLfKY3E6H-_ENLrIb5_xRfSje6BpeHItEVncVmHEIBXU9m&sig=AHIEtbS3ixkYVhKwUPaV13jHGJLin 1 solutions
Answer 369810 by solver91311(16885) on 2012-02-22 13:24:03 (Show Source):
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