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Question 148144: Hi,
Looking for help with these problems.
1: The equation of the line passing through the point (1,-2) and perpendicular to the line Y=(-2/3X)+(4/3)is?
2: Simplify the expression below (leave answer with positive exponents)
(7X^3Y/14XY^-2)^2 both numerator & denominator squared.
3: The trigonometric expression SinӨ+CotӨCosӨ
4: If SinӨ=(3/5) and Ө is in quadrant2 find Sin2Ө (Hint Sin2Ө=SinӨCosӨ)
Last one for trig! yes!
5: The point (-2,3) lies on the terminal side of an angle Ө in standard position. Find the exact value of Ө.
Thank YOU!!!!!!!!!!!!!!!!!!
Click here to see answer by stanbon(26285)

Question 148136: Hi,
looking for help with Trig functions.
1: Which is equilvalent to SinӨ+CotӨ+CosӨ=?
2: Find all vertical asymptotes of... F(X)=X/X^2-9
3: Find all solutions in [0,2pi) for the trigonometric equation Cos2x=-1
If you can help thank you!
Click here to see answer by stanbon(26285)

Question 148293: Hi,
Question is solve the equation on the interval [0,2Pi0.
2cos^2x+sinx-2=0
Since cos^2x= 1-sin^2x I substituded this:
2(1-sin^2x) + sinx-2=0 to get
-2sin^2x + sinx=0 since -2 and +2 cancel eachother out. I am lost after this and the calculator hmm don't know whats worse figuring out the calculator or the math problem.
Click here to see answer by stanbon(26285)

Question 148517: if tan A = 2/3 and if angle A is acute, then sin A = ?
Click here to see answer by stanbon(26285)

Question 148605: A culture of yeast doubles in size every 20 minutes. The size of the culture is now N0. Find its size in 12 hours. How do you solve these problems?
Sugar is put in a large quantity of water and the mixture is stirred. After 2 minutes, 50% of the sugar has dissolved. How much longer will it take until 90% of the sugar has dissolved?
I am really having trouble and I need your assistance.
Click here to see answer by stanbon(26285)

Question 148604: The value of a new $3500 sailboat decreases 10% per year. Find its value after 1 year.
Click here to see answer by mangopeeler07(450)

Question 148604: The value of a new $3500 sailboat decreases 10% per year. Find its value after 1 year.
Click here to see answer by jojo14344(1483)

Question 148633: Prove the identity:

Click here to see answer by Edwin McCravy(2922)

Question 148632: Prove the identity:

Click here to see answer by Edwin McCravy(2922)

Question 148708: solve for all solutions
3tan^3 x=tan x
Click here to see answer by nabla(412)

Question 148631: tan^2x-cot^2x=sec^2x-csc^2x
Click here to see answer by jojo14344(1483)

Question 148710: exact value
sin(cos^-1 3/8)
Click here to see answer by oscargut(682)

Question 148806: I try to solve this problem [f(0)=2x/x^2-1] but i ended up like these:
f(0) = __2x__
x^2-1
= _2(0)_
(0)^2-1

then... I don't know what'z next...

By the way, I would like to say thank you to jim_thompson5910 for solving my problem last July 15, 2007...
Click here to see answer by vleith(1977)

Question 148709: exact value
cos^-1(sq rt 3/2)
Click here to see answer by Alan3354(6091)

Question 148893: If you are concerned with how far along an arc you have traveled, the best unit of measure is?
Click here to see answer by jojo14344(1483)

Question 148898: On one extreme, a circle is a special case for an ellipse; at the other extreme, a ? can be viewed as another special case for an ellipse
Click here to see answer by Edwin McCravy(2922)

Question 148892: Can a constant be considered a polynomial? Why?

No, because there is only a single term.
No, because there is no variable 'x'.
Yes, because cx0 = c(1) = c (a constant).
Yes, because c1 = c
Click here to see answer by Edwin McCravy(2922)

Question 148900: Which of the following is a method for solving systems of two variables?
Substitution
Addition
Both of the above
None of the above

I think it's both but not too sure
Click here to see answer by nerdybill(2446)

Question 148897: If A is a 3 × 4 matrix, B is a 4 × 12 matrix, and C is a 12 × 2 matrix, then A + B − C = ??
Click here to see answer by jim_thompson5910(13794)

Question 148894: Which of the following statements is true?

When rotating a conic section, combinations of sin? and cos? are often used
When rotating a conic section, only sin? needs to be used
Conic sections can neither be rotated nor translated
Conic sections can be rotated but not translated
Click here to see answer by Nate(3495)

Question 149053: What is infinity?
Click here to see answer by mangopeeler07(450)

Question 149054: Coefficients are to ____ as exponents are to ____?
I believe it terms and factors..
Click here to see answer by mangopeeler07(450)

Question 149405: Find the exact value of:
cos(pi/3)-sin(pi/3)without a calculator
Click here to see answer by stanbon(26285)

Question 149406: Find:
sin A if cos A = -(3/5) and 90 degrees < A < 180 degrees
Click here to see answer by stanbon(26285)

Question 149408: If we extablish an identity, sinAcscA-sin^2*A could equal which of the following quantities?
1. 1
2. cos^2*A
3. sin^2*A-1
4. tan^2*A
Click here to see answer by jojo14344(1483)

Question 149423: Find the exact value of:
sin 70degrees cos 40degrees - cos 70degrees sin 40degrees.
Click here to see answer by jim_thompson5910(13794)

Question 149438: Please help me finde the value of cos^-1(0)
Thank you, Natalie
Click here to see answer by jim_thompson5910(13794)

Question 149465: Find the exact value of : sin405degrees
Click here to see answer by jim_thompson5910(13794)

Question 149462: Rewrite 9pie/5 radians in degree measure
Click here to see answer by jim_thompson5910(13794)

Question 149461: Rewrite: -25^o (degrees) in radian form
Click here to see answer by jim_thompson5910(13794)

Question 149459This question is from textbook Algebra 2
: Solve (triangle) ABC if C=90 degrees, B=20 degrees, and b= 10. Round measures of sides to the nearest tenth and measures of angles to the nearest degree.This question is from textbook Algebra 2

Click here to see answer by tryin2bhelpful(6)

Question 149441: solve for roots
cotxcosx=cosx
Click here to see answer by Alan3354(6091)

Question 149536: Please help me with this problem!
If cos2A = 0 and 0 < or = A < 2pi, find A.
Thank you, Natalie
Click here to see answer by Alan3354(6091)

Question 149545: Please Help solve this problem!
In 3r=sinA, r and A represent polar coordinates, write each polar equation as an equation in rectangular coordinates (x,y).
Thank you, Natalie
Click here to see answer by Fombitz(2113)

Question 149437: Solve for roots
3sin^2x-8sinx-3=0
Click here to see answer by Fombitz(2113)

Question 149650: Solve x= Arc tan(-squareroot 3)
Click here to see answer by Alan3354(6091)

Question 149697: Find all the real zeros of the function:

List the real zeros in ordered pair format.
Click here to see answer by Edwin McCravy(2922)

Question 149651: Find the exact value of cot (-pie/6)
Click here to see answer by Fombitz(2113)

Question 149724: Find the exact value of cos315 degrees
Click here to see answer by Fombitz(2113)

Question 149727: Should the triangle be solved beginning with Law of Sines or Law of cosines. Then solve the triangle and round to the nearest tenth. a=16,b=13,c=10
Click here to see answer by Alan3354(6091)

Question 149722: Find the exact value of : sin60 degrees - cos60 degrees
Click here to see answer by nerdybill(2446)

Question 149728: Should the triangle be solved beginning with Law of Sines, or Laws of Cosines. Then solve the triangle and round to the nearest tenth. A=56 degrees, B=38 degrees, a=13.
Click here to see answer by stanbon(26285)

Question 149721: Find the exact value of cot(-pie/6)
Click here to see answer by jim_thompson5910(13794)

Question 149789: find the exact value of tan(-3 pie)
Click here to see answer by jim_thompson5910(13794)

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