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is at a 30 degree angle (330°).
what is the length of the base in inches?
what is the length of the hypotenuse in inches?
IE.
if the vert Leg 4" and the hypotenuse is at 45°
than the horz. leg is 4"
and the hypotenuse is 5.66"
but this makes a different right triangle and this one is easy for me. I know I should have listened better 38 years ago! In the future how can I figure this myself?
Thanks you in advance,
Arye P Rubenstein
aprarye@ameritech.net
1 solutions
Answer 311062 by Alan3354(30993)   on 2011-05-22 09:58:35 (Show Source):
You can put this solution on YOUR website!please calculate/solve for a right (90°) triangle when the vertical leg is 4" and hypotenuse is at a 30 degree angle (330°).
what is the length of the base in inches?
what is the length of the hypotenuse in inches?
sin(30) = 1/2
--> sin(30) = 4/hyp = 1/2
hyp = 8 inch if I interpreted it right.
--------------
IE.
if the vert Leg 4" and the hypotenuse is at 45°
than the horz. leg is 4"
and the hypotenuse is 5.66"
--------------------
Using the same method:
sin(45) =~ 0.70711
hyp = 4/0.70711 =~ 5.66
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but this makes a different right triangle and this one is easy for me. I know I should have listened better 38 years ago! In the future how can I figure this myself?
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Exponents/452387: I am so confused, how would this problem be solved?
(x^2)(3x^5)^3(9x^2
______
3x)
I don't know how to type a fraction bar, sorry about that but there are 3 pairs of parentheses if it helps it's x squared times 3x to the power of five raised to the power of 3 and 9x squared over 3x
I'm in algebra 1 so please explain it slowly
I got 87x^18 but I'm not so sure.
Please help, thank you!
1 solutions
Answer 311009 by Alan3354(30993) on 2011-05-21 21:51:21 (Show Source):
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Equations/452389: My grandaughter came home with six of these math problems (6th grade)....
Using the numbers (2,3,4,5,7,8,9) fill in the blanks.
_*_-_/_+_*_/_=3
Using brute force it took me (and four other ADULTS) several hours to answer all 6 questions....
Am I missing something here?? Is there some technique I am missing?
1 solutions
Answer 311007 by Alan3354(30993) on 2011-05-21 21:45:49 (Show Source):
You can put this solution on YOUR website!Trial and error is the only way.
The only possible use for such problems is ... not sure what.
I don't see the point or the purpose of problems like this.
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Equations/452437: I cannot figure out where I am going wrong on this problem. I distributed solving the parentheses first, but no matter what I do, I keep getting this problem wrong.
3x+2[1-3(x+2)]=2x
This is my work..
3x+2[1-3(x+2)]=2x
3x+2[1-3x-6]=2x
3x+2-6x-12=2x
I get x= -10. Could you tell me where I am going wrong? I thought you needed to do inside the parentheses first, then inside the brackets.
Thank you in advance.
1 solutions
Answer 310995 by Alan3354(30993) on 2011-05-21 20:11:13 (Show Source):
You can put this solution on YOUR website!I cannot figure out where I am going wrong on this problem. I distributed solving the parentheses first, but no matter what I do, I keep getting this problem wrong.
3x+2[1-3(x+2)]=2x
This is my work..
3x+2[1-3(x+2)]=2x
3x+2[1-3x-6]=2x
3x+2-6x-12=2x
---------------
-3x -10 = 2x
I get x= -10.
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3x+2[1-3(x+2)]=2x
2[1-3(x+2)] = -x
2 - 3(x+2) = -x
- 3(x+2) = -x-2
3(x+2) = x+2
3x+6 = x+2
2x+4 = 0
x = -2
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Exponents/452368: How do you solve this equation?
(-2x^3y)^6
If the exponent is on the outside of the parentheses do you multiply it by the exponents inside the parenthesis or add them?
Btw it's 2x cubed not 3y.
Please help, and thank you!
1 solutions
Answer 310976 by Alan3354(30993) on 2011-05-21 16:23:17 (Show Source):
You can put this solution on YOUR website!How do you solve this equation?
(-2x^3y)^6
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1st, it's not an equation. I can tell, there's no equal sign.
(-2x^3 y)^6
Each factor is raised to the 6th power.
= 
----------------
If the exponent is on the outside of the parentheses do you multiply it by the exponents inside the parenthesis or add them?
When it's raised to a power, you multiply them.
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eg 
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Trigonometry-basics/452370: a particle moving with speed v hits a barrier at an angle of 60° and bounces off at an angle of 60° in the opposite direction with a speed reduced by 20% find the velocity of the vector of the the object after the impact
1 solutions
Answer 310975 by Alan3354(30993) on 2011-05-21 16:11:30 (Show Source):
You can put this solution on YOUR website!It's 0.8v if takes as a scalar amount.
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You ask for the "velocity of the vector", tho, not the velocity of the particle ???
No direction info was given. Confusing problem.
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Trigonometry-basics/452156: how do i find x? log[13](3x+9)-log[13](3)=log[13](12)
1 solutions
Answer 310945 by Alan3354(30993) on 2011-05-21 11:40:45 (Show Source):
You can put this solution on YOUR website!log[13](3x+9)-log[13](3)=log[13](12)
log(3x+9) - log(3) = log(12) All bases are the same, so it doesn't matter.
Subtracting logs --> division
log( (3x+ 9)/3) = log(12)
If the logs are equal, then
(3x+9)/3 = 12
x+3 = 12
x = 9
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Linear-systems/452308: Solve by substitution method.
5x-8y=9
9x+91=y
Thank you,
Missy
1 solutions
Answer 310943 by Alan3354(30993) on 2011-05-21 11:35:32 (Show Source):
You can put this solution on YOUR website!Do it like this one. y is already solved for, so sub for y
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Solve by substitution.
6m+n=52
m-5n=19 --> m = 5n+19
Sub for m in the 1st eqn
6m+n=52
6(5n+19) + n = 52
30n + 114 + n = 52
31n = -62
n = -2
---------
6m+n=52
6m - 2 = 52
6m = 54
m = 9
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Mixture_Word_Problems/452290: What is 1/24 of $500.00 as a monthly payment. Believe it or not, I was a physics major in college and am pregnant. I just cant figure this out.. HELP !! haha..
1 solutions
Answer 310926 by Alan3354(30993) on 2011-05-21 08:14:41 (Show Source):
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Geometry_Word_Problems/452209: If an object is in free fall, the sequence 16, 48, 80, ... represents the distance in feet that the object falls during the first second, during the second second, during the third second, and so on. How far will the object fall during the first 9 seconds?
1 solutions
Answer 310864 by Alan3354(30993) on 2011-05-20 21:45:56 (Show Source):
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Rectangles/452117: Two rectangles are similar: one has length = 30 units and width = 6 units, and the other has length = 10 units and width = _____ units.
1 solutions
Answer 310790 by Alan3354(30993) on 2011-05-20 13:12:55 (Show Source):
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