Questions on Algebra: Trigonometry answered by real tutors!

Tutors Answer Your Questions about Trigonometry-basics (FREE)

Question 44302: State the vertical shift and the equation of the midline for y=4cosӨ-1.
Thank You
Click here to see answer by Nate(3500)

Question 44299: State the shift of y=cos(Ө-π/3). Then Graph the fuction.
Thank You
Click here to see answer by Nate(3500)

Question 44341: What are the possible answers?
sin(x) - sin(3x) = 0
Click here to see answer by Nate(3500)

Question 44341: What are the possible answers?
sin(x) - sin(3x) = 0
Click here to see answer by fractalier(2101)

Question 44196: Find the exact value of cot(-π/6).
Thanks
Click here to see answer by fractalier(2101)

Question 44190: Rewrite (9π)/5 radians in degree measure.
Thanks
Click here to see answer by fractalier(2101)

Question 44189: Rewrite: -25º in radian form.
thanks
Click here to see answer by stanbon(57984)

Question 44191: Find one angle with positive measure and one angle with negative measure coterminal with -310º.
Thanks
Click here to see answer by stanbon(57984)

Question 44589: What are answers for:
tan(x) - sin(x)/cos(x) =
Click here to see answer by Nate(3500)

Question 44631: What Is The Answer?
cot(-/6)
Click here to see answer by Nate(3500)

Question 44959: I asked this question in the past but never received a response. Is there anyone out there that can help?
Sketch the angle with measure -2π/3 radians. Label its reference angle.
Click here to see answer by stanbon(57984)

Question 45042: Does prove reflection for physics-real relationships with ? If so, how many solutions are there (I do not need the possible solutions.)
Click here to see answer by Nate(3500)

Question 44958: Find the exact value of the six trigonometric functions of θ if the terminal side of θ in standard position contains the point (-5,-4).
Please Help.
Thanks
Click here to see answer by stanbon(57984)

Question 45148: hello :
i really could use some help with this problem. i am a little confused with this one
thank you in advance, it is greatly appreciated.
terry

find the exact value of : sin 2 theta, cos 2 theta, tan 2 theta
sin theta = - 4\5 270 degrees less than theta. theta less than 360 degrees
Click here to see answer by stanbon(57984)

Question 45710: C(22,4)= my answer is 7315
P(6,5)= my answer is 720 this one I'm not sure about. These two problems deal with Combination (subset) and Permutations Thanks for checking my answers.
Click here to see answer by venugopalramana(3286)

Question 46460: Evaluate
log (a little 5 on the bottom) 20
A) 1.86135
B) 1.30103
C) 2.5
D) 4
Click here to see answer by atif.muhammad(135)

Question 46470: Solve the following 3ln2x=12
A) 27.3
B) 54.6
C) 109.2
D) 2

Click here to see answer by Nate(3500)

Question 46466: Solve the following equation:
log ( a little 5) (x-1)=-1
A) 6
B) 0.8
C) 0.2
D) 1.2

Click here to see answer by Nate(3500)

Question 46468: The pH of a solution is given by Ph = log x where x is the concentration of hydrogen ions in solution in moles per liter. What is the hydrogen ion concentration in a base solution with a pH of 9.3?
A) 1.9952 X 10^9
B) 9.1424 X 10^-5
C) 0.1075
D) 5.0119 X 10^-10

Click here to see answer by Nate(3500)

Question 46456: Evaluate (use calculator)
log (pi symbol)22=
A) 0.1428
B) 0.3703
C) 69.115
D) 2.7002

Click here to see answer by Nate(3500)

Question 46465: Using the properties of logarithms to expand the expression as much as possible without using a calculator.
log x ^ -4a
A) x log -4a
B) log -4a + log x
C) (log x) -4a
D) -4a log x

Click here to see answer by Nate(3500)

Question 46469: Use the properties of logarithms to expand the expression as much as possible without using a calculator.
ln 5 (square root symbol) y^2
A) -3 + ln y
B) 3 + ln y
C) 5/2 ln y
D) 2/5 ln y

Click here to see answer by Nate(3500)

Question 46853: Can you please help me with this question? it says "What are the following trigonometric identities for the following:"
1.) (double angle) cos2x=
2.) cos(a+b)=
3.) (double angle) sin2x=
4.) sin(a+b)=
...any help u can offer will be apreciated thank you for you time...
Click here to see answer by Nate(3500)

Question 47547: Which of the following integers cannot be a potential integral zero of the function: P(x)=4x^3+5x^2-23x-6
A- 1
B- 2
C- 3
D- 4
Click here to see answer by Nate(3500)

Question 47633: Help please!- The approach pattern to an airport requires pilots to set an 11 degree angle of decent toward a runway.If a plane is flying at an altitude of 9,500 m at what distance (measured along the ground) from the airport must the pilot descend?-Thank you!
Click here to see answer by Nate(3500)

Question 47861: Sketch one period of the following trigonometric graphs:
a.) cos^2(x)
b.) |sin x|
c.) y= 3 cos (4x) - 1
I am not certain about my answers...can someone show me how it will look? thanks i really need the help.
Click here to see answer by Nate(3500)

Question 47889: I tried to figure out the period of the following functions can you tell me if they are correct?
"find the period of the following functions"
a.)
period: 180?
b.) y=-3tan(x)
period: 2?
c.)
period: 180?
d.) y=-3sec(-6x)+2
period: -60?
if not can you help me with the correct answer? thank you.
Click here to see answer by Nate(3500)

Question 47884: Please help with solving the following trigonometric equations for the given domain:
sinx = cos(x) .....on [0,2]
sin2x =.......on [0,2]
what do they mean when they say on[0,2] ? can you provide an explaination or an example please?? thank you.

Click here to see answer by stanbon(57984)

Question 47978: can someone help me with the following i'm kind of lost at what to do. thanks!!
"Evaluate the following expressions:"
a.)
b.) ...(note) that is sin^2
c.) ...(note) that is sec^2
d.) is finding out an angel first of all
i know that i have to use the unit circle but i dont know what to do.
any help would help thanks!!!
Click here to see answer by ChillyWiz282(3)

Question 48064: "solve the following trigonometric eqaution for the given domain (cont.)":
can someone show me how to solve the below eqautions and explain them to me? thanks.
i dont understand what you have to do with the "x" and a lot of other things. please help thank you.
a.) sin 3x = ....for all x
b.) tan 2x= 0 ....on [,]
c.) secx= 2......for all x
d.) sin^2 x + sin x=0....on [0,2]

Click here to see answer by stanbon(57984)

Question 48048: can someone please help me sove and graph this problem.
x-y=5
x+y=3
Click here to see answer by tutorcecilia(2152)

Question 48452: Can you give me a mathematical problem to solve?
Click here to see answer by atif.muhammad(135)

Question 48516: compound sentences:

Click here to see answer by cowess(34)

Question 49322: Will sin(x) ever equal cos(x)? I do not need solutions. Also, does sin(x) = cos(x - /2)? Explain.
Click here to see answer by Nate(3500)

Question 49325: How do you find the period of sine equations? Also, is the period of a wave in math the wavelength of a wave in science?
Click here to see answer by Nate(3500)

Question 49324:

Are those correct?
Click here to see answer by Nate(3500)

Question 49324:

Are those correct?
Click here to see answer by Osran_Shri(18)

Question 49754: (1/2)^4=1/16 write in logarithmic
Click here to see answer by Nate(3500)

Question 49744: cot 60 degrees
tan 210 degrees
sec 210
csc 210
cot 210
cos 11pi/6
cot 3pi/2
tan 2pi/3
csc 5pi/6

please help if anyone can do it i need it by thursday 8/23/06 by 6:30 tomorrow morning please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Click here to see answer by venugopalramana(3286)

Question 50323: please help me solve the following system equation with three variables!!
2u-3v=13
3v+W=-3
4U-W=2
Click here to see answer by AnlytcPhil(1278)

Question 50462: Please help me solve this equation. it is completing the square:
2b2 + 7b + 4=0
Click here to see answer by stanbon(57984)

Question 50787: What is the answer to the equation
Click here to see answer by checkley71(8403)

Question 50964: Hi
i need help with this problem: (((6e^(2x)=18x^2))). i divided each side by x and took the ln of each side thus getting 2x=ln3x^2. now i don't know what to do. please help thanks
Click here to see answer by stanbon(57984)

Question 50950: Please help with the following problem: Solve for z in terms of y: z-zsiny=1. i started by subtracting the one to the other side and then dividing by z getting (z-1)/z=siny. now i have no idea what to do or if what i did was right. please help!
Click here to see answer by stanbon(57984)

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