# Questions on Algebra: Trigonometry answered by real tutors!

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 Algebra: Trigonometry Solvers Lessons Answers archive Quiz In Depth

 Question 302863: Find the distance between the lines 2x+3y-15=0 and -3x-2y=8 Click here to see answer by Alan3354(30993)

 Question 302858: In a right triangle you know that the sine of one angle is 4/5 . Find the cosine and tangent of this angle. Click here to see answer by london maths tutor(243)

 Question 302970: State the amplitude, period, phase shift, and vertical shift for the following function, then graph the function. y = 2 sin (0 + pi/2) - 3 Click here to see answer by stanbon(57307)

 Question 303127: The solutions of cos 2x = 0, in the interval 0 < x < 360 Click here to see answer by nerdybill(6958)

 Question 303183: use synthetic substitution to find the value of f(-2) for f(x)= x^3-3x^2-x-9 Click here to see answer by nyc_function(2733)

 Question 303176: if x varies inversely as y and x=2 when y=8 find x when y=17 Click here to see answer by nerdybill(6958)

 Question 303196: The pyramid is 146.5 m high. When Rowena stands far away from the pyramid, her line of sight to the top of the pyramid forms an angle of elevation of 20 degrees with the ground. What is the horizontal distance between the center of the pyramid and Rowena? Thanks for your help. Click here to see answer by nyc_function(2733)

 Question 303195: The problem states - Given J (-3,4) and K (-7, -2), find the magnitude of JK to the nearest tenth. Please help me with this. Thanks Click here to see answer by nerdybill(6958)
 Question 303195: The problem states - Given J (-3,4) and K (-7, -2), find the magnitude of JK to the nearest tenth. Please help me with this. Thanks Click here to see answer by nyc_function(2733)

 Question 303177: if y varies directly as x and inversely as z^2, and y=3 when x=2 and z=4, what is the value of x when y=6 and z=2 Click here to see answer by Fombitz(13828)
 Question 303177: if y varies directly as x and inversely as z^2, and y=3 when x=2 and z=4, what is the value of x when y=6 and z=2 Click here to see answer by london maths tutor(243)

 Question 303762: tan x is greater than 0. what quadrant does this lie in. thank you for any help Click here to see answer by Alan3354(30993)

 Question 304115: i must rewrite this tri function using angles between 0 and 90 sin 150 degrees= sin? thank you for the help Click here to see answer by dabanfield(803)

 Question 304097: How do you find the radian measure of the central angle of a circle of radius 1 yard that intercepts an arc of length 4 yards? Click here to see answer by dabanfield(803)

 Question 304261: How do you verify this problem using trig identities? cscx/cosx-cotx= tanx Click here to see answer by stanbon(57307)

 Question 304415: Convert sqrt(3)x-y+3= 0 to a normal form of a line. Click here to see answer by stanbon(57307)

 Question 304573: i must show that cos theta=sinthetacottheta. i would appreciate any help possible. thank you Click here to see answer by CharlesG2(828)
 Question 304573: i must show that cos theta=sinthetacottheta. i would appreciate any help possible. thank you Click here to see answer by Stitch(352)

 Question 304674: how do i solve cos theta minus 1 equals negative one Click here to see answer by stanbon(57307)

 Question 304701: A boat is traveling in a triangular manner. The boat traveled 213 miles from point a to point b.It then took a 23 degree turn going from point b to point c and traveled 105 miles to get there. At what angle must it turn to get from point c to point a? Click here to see answer by Theo(3458)

 Question 304856: Find (1/sqrt2 + i/sqrt2)^8 -8 256 8 1 None Click here to see answer by stanbon(57307)

 Question 304887: draw a 270° angle in standard position Click here to see answer by Edwin McCravy(8908)

 Question 304853: The polar graph of r= 3sin(2theta) is: a 3 leafed rose a circle a 4 leafed rose an 8 leafed rose None Thank you for helping:) Click here to see answer by themathtutor2009(81)

 Question 305065: If X is an acute angle and sin X= 1/2, then cos X= ? What is the answer and how do I get it? I'm taking accuplacer on Monday hopeful to avoid having to take intermediate algebra over the summer. Thanks to all for all your help, Mike Click here to see answer by stanbon(57307)

 Question 305188: how do i find the exact value of cos 810 degrees? Click here to see answer by Alan3354(30993)

 Question 305783: what is the simplified form of sin^2 (pie/2-x) tan^2x+cos^2(-x)+tan^2x? Click here to see answer by Alan3354(30993)

 Question 305762: On a piece of graphing paper draw lines 8 cm long at angles 0 degrees, 30 degrees, 90 degrees, and 135 degrees. Find the x and y component? Click here to see answer by Fombitz(13828)