# alg/trig

4,413 results, page 16

1. ### Trig

Find the 6th term of the arithmetic sequence with a9=120 and a14=195
2. ### Pre-calc/Trig...

which of the following are quadratic functions? check all that apply 1. y=2x^2-3x+7 2. y=3x-4 3. y=(5x-3x^2)/4+1 4. y=x-x^3
3. ### Pre-Calc/Trig

y=-x^2+5x+36 converting into intercept form is this the correct answer? y=(x+9)(x-4)
4. ### Trig/Pre-Calc

Solve the polynomial equation. 15x^3-119x^2-10x+16=0
5. ### trig

solve each equation if 0 < x < 2pi. answer must be in radians 1. 4 cos x - 2 = 0 2. 3 sec^2 - 4 = 0
6. ### Pre-calc/Trig

For each parabola, tell in which direction the graph opens. x= 1/2y^2 y= -1/24x^2
7. ### trig help

Find the equation of the hyperbola satisfying the given conditions. Vertices at (5, 1) and (-7, 1); asymptotes (y - 1) = 1/3(x + 1) and (y - 1) = -1/3(x + 1)
8. ### trig plz help

Solve, finding all solutions in the interval [0, 2π). tan(3x) = -1
9. ### Trig

find the equation for the cosine function that has an amplitude of 3/5, a period of 3pi/2 and a y-intercept of 5.
10. ### Math

Find the exact value of the trig function below. cos2Ø if sinØ = 2/5
11. ### alg

simplify: sqrt (6/11) a) sqrt (66/11) b) 6 c) 6 sqrt (11/11) d)6 sqrt (11)
12. ### alg

Solve for u: u − 2/ u − 4 + 6 = u + u − 6/ 4 − u
13. ### Algerbra 2

I am doing a worksheet for my alg. 2 class and in the worksheet it says: 'Simplify the expression. Assusme all variable are positive.' the problem is perentheses, square root of six times the power of 3 square root of six perentheses power of six!
14. ### Alg 1

The largest town square in the world is Tiananmen Square in Beijing, China, covering 98 acres. A. 1 sq mile is 640 acres. Assuming that the Tiananmen Square is a square, how many feet long is a side to the nearest foot? B. To the nearest foot, what is the diagonal distance ...
15. ### alg

consider the model y=4/9x + 7/3 for the relation between price and quality of chewing gum. a) what does the slope mean? b) use this equation to predict the likely rating of gum which costs 8 cent a stick c) according to this equation what would a chewing gum with a rating of 3...
16. ### Trig

Use the half angle formula to find the exact value of tan 7 pie/8
17. ### Trig

Solve the equation on the interval 0 less than or equal 0 < 2pi. 1. sec 30/2 = -2 2. cos(20 - pi/2) = -1 3. tan(0/2 + pi/3) = 1
18. ### trig

transform the expression on left to one on right csc x-sin x to cot x cos x
19. ### Trig

Hi. Can somebody help me solve this equaton with EXACT answers? ----- sin3x = 0 ----- Thankyou! All help is appreciated.
20. ### Trig

Find the exact value of: sin405. reference angle=225 sin225= -.707106781 = -.71
21. ### trig

Write an expression that gives all solutions to the equation sin x + cos x = - radical 2
22. ### trig

Give an equation of a cosine function of x which has a phase shift along x of 5 units and an amplitude of 4
23. ### trig

Give an equation of a cosine function of x which has a phase shift along x of -1 unit and a wavelength of pi/3
24. ### trig

simplify and write the trigonometric equation in terms of sine and cosine. tan^2x-sec^2x
25. ### Algebra2/Trig

Evaluate the indicated function for f(x)=x2+1 and g(x)=x-4 Note: x2+1 means x squared plus one. (2f)(5)
26. ### trig

Find cosq and sinq if the terminal side of q lies along the line y = - 2 x in quadrant IV.
27. ### trig help again i cant get any of these

sin^4cos^2x=(1/16)(1-cos 2x)(1-cos4x) work one 1 side only!

29. ### Trig....

use specific triangles and the unit circle to geth the values. tan(5pi/6?)
30. ### Trig

Find the distance from pi. 7 pi/6. I subtracted 2 pi from this and got -5pi/6. But the correct answer is pi/6. Whwere did this come from?
31. ### trig

Rewrite cos4x as an equivalent expression that does not contain powers of trigonometric functions greater than 1.
32. ### trig

Rewrite 8 cos2 x as an equivalent expression that does not contain powers of trigonometric functions greater than 1

If cos A-1=0, where 0<or= A< 2pi, then A=? The answer I got was pi/3,5pi/3. I don't know where I went wrong can you please help. thanks
34. ### math

The terminal side of theta is in Quadrant III and lies on the line y = 2x. What are the 6 trig functions?

36. ### trig

evaluate the following without using a calculator and please explain how cos(arctan 3)
37. ### Algebra 2/trig

How would I calculate the following function value? tan = 29degrees 36feet
38. ### HELPPPPPPP (TRIG)

solve the equation 2 sec x- tan x = cot x for the interval 0 to 360 please:)
39. ### trig

Write the following equation in standard form and identify the type of conic: 9y^2 - 4x^2 + 8x + 18y + 41 = 0
40. ### trig

Find the 6 trigonometric function of teta if it's terminal side passes through the point(1,2)
41. ### trig

on the same set of axes sketch the graph of f(x)=sin2x and g(x)=2sin x for x (o,180 degrees)
42. ### trig

Given tan A = .29 find the angle A in degrees. Round your answer to the nearest hundredth.
43. ### Trig

Find the general solution for the equation 4tanx+cotx=5?????? and the steps please? THANYOO!

What are the period and 2 consecutive asymptotes? 1. y= -3tan pi x 2. y= 2 sec 4 x 3.y= csc x/3 4.y = 3cot pi x/3
45. ### trig

find exact value using sum or differnce equations. tan(19pi/12)

47. ### Math/Trig

Find two exact values of sin(cos­­ˉ¹ √5/6)
48. ### Math/Trig

Find the area of a sector of a circle with a radius of 3 m and a central angle of 125degrees.
49. ### Math/Trig

Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.
50. ### Math/Trig

Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.
51. ### trig

Find the altitude of an isosceles triangle whose base in 30 cm vertex angle is 75 degres
52. ### trig

2 cosine squared pi over 8 minus 1 find exact value of given expression
53. ### trig

use a sum or difference identity to find an exact value cos pie/12
54. ### trig identies 5.3 &5.4

use a sum or difference identity to find an exact value pie/12
55. ### identities trig?

find all solutions to the equation in the interval [0,2pie] cos2x=cosx
56. ### trig

angle a is acute and sin = u. find the other five trigonometric functions in the terms of u.
57. ### trig

use a half angle formula to find the exact value of cos 75 degree
58. ### trig

A sine wave function f(x) = a sin(bx) has amplitude 10 and period 40. What are the values of a and b? (A) a = 10 and b = 20/pi ( B) a = 10 and b = 1/40 (C) a = 10 and b = pi/20 (D) a = 10 and b = 40 E) None of the above.
59. ### Trig

Use a cofunction to write an expression equal to csc(4ð/11). I need help solving this problem. Thank You
60. ### Algebra 2 / Trig

Given cos X = -0.147, find two possible values for X that are not co-terminal.
61. ### Trig

find cos x/2, sin x = 1/4, 360 < x < 450, use half-angle identity
62. ### trig

find the exact zeros of the function in the interval [0, 2π) 2 cot squared x + 3 csc x=0
63. ### Trig

Find the amplitude, period, and phase shift of the following function: y=-2cos2(θ+45)
64. ### Trig

A car is traveling at a speed of 55 mph with a bearing of 210°. What vector represents the velocity?
65. ### trig

find a value of interval in degrees cotalpha=1.3692847 alpha=0.023903 is that correct?
66. ### trig

Solve sin ¥è = -0.204 for 90¨¬ < ¥è < 270¨¬. Give your answer to the nearest tenth of a degree.
67. ### trig

evaluate the expression below at t=4 p=\$400 and r=-9% round youre answer 2 decimal place
68. ### trig

Find the exact value by using a half-angle identity. cos 22.5 degrees
69. ### Trig

Find the exact value of tan 5pi/12 using the half-angle identity.
70. ### trig

write equations expressing: 19cos(theta-50degrees) as a sum of sine and cosine.
71. ### trig

write an equation expressing 19cos(theta-50degrees) as a sum of sine and cosine.
72. ### trig

if the terminal ray of an angle 0 in standard position passes through the point (-1,3),then cos0=
73. ### trig

I have a couple of these and cannot locate directions I can understand-please help! Draw the graph of y=3cos(2x) for 0< or= x < or = 2 pi
74. ### TRIG HELP ASAP

I need help trying to find the major and minor axis on this problem: x^2+3y^2-6x+24y+6=0
75. ### trig

The minute hand of a clock is 6 inches long. What distance does its tip move in 16 minutes?
76. ### trig e-maths

giving that cosx=4/5 and siny=12/13, find cos(x+y) when x is acute and y is obtuse angle
77. ### Trig-desperate

f(x)=sin2x and g(x)=1/2tanx for x is the element of [-90;180] 8.1)calculate the x-coordinates of the points of intersection of f and g.
78. ### Trig

How do you find the exact circular function value of csc(-23pi/6)? I don't know how to do the pi symbol on the keyboard.
79. ### trig

a voltmeter's pointer is 3 cm in length. find the degrees through which is rotates when it moves 1.1 cm on the scale?
80. ### Trig

There is an airplane at an altitude of 12000 ft. The angle of depression is 1 degree. How far on the ground is the plane.
81. ### trig

Find the following values for each function a. f(0) b. f(-1) c. f(-x) d. f(x+1) f(x)=2x^2+3x-4 I you plug in the value for each x, I just want to check my answers. Thanks.
82. ### Trig

Let f and g be two invertible functions such that f^-1(x)=5/x+4 and g(x)=4(x-2). Find f(g(5)). Show your steps please so I can see how to do it. Thank you! :)
83. ### trig

Use an addition or subtraction formula to simplify the expression: tan(2−u)=cot(f(u)).
84. ### TRIG

show that cos(pi x) = pi cosx is not an identity by finding a single value of x for which it fails to hold.
85. ### math

(-3/5, 2) is a point on the terminal side of theta, find the value of the six trig functions
86. ### trig

the mini tent of the clock is 5 cm long.how far is the tip of THE HAND TRAVEL IN 35 MINS.
87. ### Math-Trig

Find all angles in degrees that satisfy each equation. tan(a)+rad3=0
88. ### trig

Solve exactly over the indicated interval: 2sinx+cscx=3, 0<theta<360
89. ### math trig

If a ferris wheel has a radius of 20.5meters, how tall would a 45 degree angle be?
90. ### trig

for the given angle, name the quadrant in whihc the terminal side lies. -350deg
91. ### trig

Find all real numbers in [0, 2π) that satisfy the equation. cos 2x = √(2)/2
92. ### trig

Find all values of ¸ in [0°, 360°) that satisfy the equation. 2 sin 2θ - √(3) = 0
93. ### Math - Trig

Explain why we cannot solve an oblique triangle with the Law of Sines given SAS.
94. ### trig

If \$5000 is invested at a rate of 3% interest compounded quarterly, what is the value of the investment in 5 years?
95. ### Trig

given that sinx=3/4 and cosy=-5/13 and both x and y are in quadrant II, find the exact value of cos(x-y)
96. ### Inverse Trig

How do I simplify arcsin (sin 6 pi) given the interval 0 ≤ theta < 2pi
97. ### trig

Given that cos A = 5/13 and A and B are both acute angles, calculate the value of Sin2A and Cos2A
98. ### Pre-Calc/Trig...

am i correct? What is the axis of symmetry for the graph of y=2x^2-4x+2? x=? the line goes through 1? x=1
99. ### Pre-Calc/Trig...

Help me please. Solve the equation: (x-3)(x+2)=0 Enter the solution with the lowest value.
100. ### Trig

Verify and identify, I am so confused on how to do this? this is an extra credit but I am lost, please help. cot(Ý-ƒÎ/2)=-tan Ý