# alg/trig

4,413 results, page 17

1. ### trig

Find all angles è between 0° and 180° satisfying the given equation. cos è = 1/9
2. ### calc/trig

A 84-ft tree casts a shadow that is 130 ft long. What is the angle of elevation of the sun?
3. ### Pre-Calc/Trig

Describe the end behavior for function by writing a limit expression. f(x)=2x^5-x+7
4. ### trig

prove that the equation 2sin x cos x +4cos^2 x =1 may be written in the form of tan^2 x -2tan x -3=0
5. ### Pre-Calc/Trig

write an equation of the conic section: a hyperbola with vertices (0,-6) and (0,6) and asymptotes y=(3/4)x and y=(-3/4)x
6. ### trig

find the exact value of each expression. do not use a calculator. Sec 3.14/4 + 2 csc 3.14/3 4 + tan 2*3.14/3
7. ### Purdue Trig

A spherical balloon is being inflated so that radius is increasing at a rate of 10 mm/sec.
8. ### trig

half angle formula to find exact value cos 112.5 degree
9. ### MAth Trig

Find the diameter of a circle with an arc length of 32 cm and a subtended angle of 72 degrees
10. ### Trig

Find the approximate value of cot θ​, given that csc θequals=3.5891420 and θ is in quadrant I.
11. ### Trig

In which quadrant would the image of point (5,-3) fall after a dilation using a factor of -3?
12. ### Alg

A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore.
13. ### Alg

A charter boat travels at a maximum rate of 25 mph. The function d(x) = 25x represents the distance d(x),in miles, that the boat can travel in x hours. The charter boat travels a maximum distance of 75 miles from the shore.
14. ### Math/Trig

From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are 6 degrees and 13 degrees respectively. The points and the tower are in the same vertical plane and the ...
15. ### alg.

Write the equation of the line that passes through point (2, –6) with a slope of –5. I think this is a pretty easy problem, but I'm making it out to be harder than it really is. here is what I got: y=mx+b -6=-5(2)+b -6=-10+b =10 =10 b=4 the equation that I got is: y=-5x+4 ...
16. ### Alg II

I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^4-6x^3+12x^2=6x-13 I used a graphing calculator to find the real roots of 1,-1 Then I did synthetic using -1, and I ended up with the equation x^3-6x^2+2x-13 How do I...
17. ### Alg II

I'm working with finding roots of polynomial equations with degrees of 3 or higher. I have the equation r(x)=x^4-6x^3+12x^2=6x-13 I used a graphing calculator to find the real roots of 1,-1 Then I did synthetic using -1, and I ended up with the equation x^3-6x^2+2x-13 How do I...
18. ### Calculus

so we are doing integrals and I have this question on my assignment and I can't seem to get it, because we have the trig substituion rules, but the number isn't even so its not a perfect square and I just cant get it, so any help would be greatly appreciated. The question is...
19. ### Pre Alg (Check my work?)

1.) In which Quadrant is the point (x,y) located if x is negative and y is positive? II III IV (MY ANSWER) I 2.) Point A(5,-10) is reflected over the Y axis. Write the coordinates of A'. (-8,-10) (8,10) (8,-10) MY CHOICE (-8,10) 3.) At the half-tame show, a marching band ...
20. ### Alg 1

You have 60 megabytes of space left on your portaable media player. You can choose to download song files that use 3.5 megabytes or video files that use 8 megabytes. You want to download at least 12 files. What is a graph showing the numbers of songs and video files you can ...
21. ### Pre-Calc

Consider a triangle ABC. C is a right angle, and side a is opposite angle A, side b is opposite angle B, and side c is the hypotenuse. The measure of side a= 2, side b= 7, and side c= 7.3 How do you find the angle measure of A and B based on the lengths of the sides? SinAngleB...
22. ### Trig

use a graphing utility to solve each equation, rounded to 2 decimal places 1. x^2 - 2sin2x = 3x 2. x^2 = x + 3cos2x
23. ### trig

Use half-angle formulas to find the exact value for the following cot 75 degrees
24. ### trig

Give an equation of a sine function of x which has a phase shift along y of -2 units and a wavelength of 3pi
25. ### trig

Find a polar equation of this conic with focus at the pole and the given eccentricity and directrix. e=2, r cos X =-1
26. ### trig

solve for x 6tanx - 4sinx = 1 i tried it but got a quartic formula :S 16sin^4x + 8sin^3x + 37sin^2x - 36 = 0
27. ### trig

Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help sin (-pi/12)
28. ### Trig

I was just wondering if anyone can explain the Law of Sines- "Ambiguity Case" to me, in a way that is easy to understand.
29. ### trig

write down the value (corect to three decimal places of:- a) sin64= b) tan21= c) cos67.4=
30. ### Trig.

Why is the arctan of (- square root of 3) 5 pi/6. How come it isn't broken down to 5 pi/3 since I got 10 pi/6 and that reduces to 5pi/3
31. ### Trig

How do I find all solutions in the interval [0, 2Pi): cotx=cscx-1 the answer choices are: a.) x=Pi/2 b.) x=Pi/2 and 3Pi/2
32. ### trig

which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane
33. ### trig

which of the following sets gives the x coordinates where the parabola y=x^2+4X-50 and the line y=7x-10 intersect when drawn in the coordinate plane
34. ### math, trig

What is the exact value of the cos of 23pi/12? (Twenty-three pi over 12, which is = to 345 degrees.) Thank you
35. ### trig

find, to the nearest degree, the solution set of 4 cos^2x-1=0 in the intervak between )degrees and 360degrees.
36. ### trig

ind, to the nearest minute, the solution set of 4 cos x + 5 = 6 sec x over the domain 0 degrees
37. ### trig

find the exact value by using the appropriate half-angle identity: sin(5pi/12)
38. ### trig

find the 5 other thrig functions if cos(theta) = square root of 2/2 and cotangent is less than 0
39. ### Trig

Determine the roots of the function f(x)=-2cos(3x)-1. Can you please show all the work so it is easier to understand, thank you!!
40. ### trig

how to do the calculation while taking 'A' as 15 in the half angle formula used for calculating the value of sin 7.5 ?
41. ### Trig math

how to split up using sum and difference identities cos (13pi/12) PLeaseeeeeeeeeee help!!! thanx a million
42. ### trig

Find altitude of isosceles triangle if angle=53 degrees (the equal angles) and the base is 8 inches.
43. ### Math/Trig

Write an equation for a cosine function with an amplitude of 2/3 , a period of pi, and a vertical shift of 2 units up.
44. ### Pre-Cal: Trig

The point (7,2) determines a poistion angle "t". Find the exact value of sin(t).
45. ### Pre-Cal: Trig

The point (7,2) determines a position angle "t". Find the exact value of sin(t).
46. ### trig

How do I find the exact value of sin2x when secx is equal to the negative square root of three
47. ### trig

given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches
48. ### trig

A right triangle has sides of length 5, 12 and 13. What is the sine of the angle opposite the hypotenuse? (A) 1 (B) 5/12 (C) 5/13 (D) 12/13 (E) None of the above.
49. ### trig

simplify (sec^2x + csc^2x) - (tan^x +cot^2x) to either a constant or a basic trigonometric function.
50. ### trig

Find the exact value of the trigonometic function at the given real number of cot(5pi/3)
51. ### Pre-calculus

find the trig functions of angle x if the terminal side of x passes through the point (-12, 5).
52. ### trig

All solutions in interval [0,2pi) of cosine theta plus one equals zero
53. ### trig

All solutions in interval [0,2pi) of cosine theta plus one equals zero
54. ### trig

If S is an element of [ 3pi/2 , 2pi ] what quadrant does the terminating side lie in and evaluate for sine theta
55. ### Math- Trig

In an oblique triangle ABC, A=30 degree, and the perpendicular from C to AB is 12 inches long. Find the length of AB.
56. ### Trig

Which trigonometric function can equal or be greater than 1.000? A Sine B Cosine C Tangent D none of the above
57. ### Trig

If sin = 2/3 and is a second quadrant angle, determine the exact value of sec^2 could be a. 5/9 b. root5/3 c. 9/4 d. 9/5 Please help.......
58. ### trig

if you are riding on a ferris wheel that is 60 ft tall and it takes you 5 minutes to make 1 revolution, what is your linear velocity?
59. ### alg2/trig

what is the smallest value of k that would make the roots of the equation x^2-2x-k imaginary? please help, no idea how to do this.
60. ### trig

Use a ratio identity to find tan(θ) if given the following. sin=6/sq rt 37 and cos 1/sq rt 37
61. ### trig

Find the exact value. Without using a calculator a) cos (-17pi/6) b) sec (3pi/2)
62. ### trig

If point (3, -8) lies on the terminal side of an angle A in standard position, find: a) sinA b) tanA
63. ### trig

What is the length of the circular arc intercepted by a central angle of 20degrees in a circle with a radius of 5cm?
64. ### trig

use the discriminant to solve for the smallest value of b that would make the roots of the equation x^2+bx+5=o imaginary
65. ### trig

Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)
66. ### trig

Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)
67. ### college Calculus Help!

Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x
68. ### college Calculus Help!

Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x
69. ### Trig Proofs!

I'm having trouble solving this proof. Can you help? cos^3+sin^3/cosx+sinx = 1-sinxcosx Thanks!:)
70. ### Trig.

finnd a possible measure of the angle drawn in standard position that passes through the points (ã2,-ã2)
71. ### trig

SOlve over (2,pie) and find the general solution in radians. 2sin3x = square root of 2
72. ### algebra-trig help asap

Evaluate the expression. Assume that all angles are in quadrant 1. 1. cos(arccos4/5)
73. ### algebra-trig help asap

Evaluate the expression. Assume that all angles are in Quadrant I. 14. tan(arccos 3/5)
74. ### trig

Consider the trigonometric function f(t) = -3+4cos(pi/3(t-3/2)) What is the amplitude/period of f(t)? What are the maximum and minimum values attained by f(t)?
75. ### trig

If x and y are complementary angles and 5 tan x-12=0,calculate by using a diagram the value of 2sin(squared)x+cos y.
76. ### trig

solve equation for the exact solutions if possible put answer in degrees. 2tanx/3-tan^2x=1
77. ### Precalc/Trig 1

What equation would you use to show that the point ((square root of 11)/(6), (5/6))is on the unit circle?
78. ### trig

Suppose that the point (x,y) is in the indicated quadrant. Decide whether the given is positive or negative. 25.) II, x/r 26.) III, y/r 27.) IV, x/y
79. ### trig

(sec^2x-1)(csc^2x-1)=1 prove the following identity ive been stuck on this for hours please help
80. ### Trig identities:(

Sin4A - cos4A = sin2A - cos2A Can i just square root the left side??:O
81. ### trig

solve exactly over the indicated interval: cot(theta)=0, all real numbers
82. ### MATH -

Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?
83. ### Math Help

Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?
84. ### trig

use an identity to write the expression as a single trignometric function. squ root 1-cos48°/2
85. ### trig

Write the complex number in trigonometric form, using degree measure for the argument. -12 - 16i
86. ### trig

use a half-angle identity to find the exact value of tan 105 degrees.
87. ### Trig

How do you solve this problem? y = 2sin 3x + 4sin 2x I haven't done these types of problems for awhile and have forgotten how to do them.
88. ### trig

A and B are positive acute angles. if sin A=4/5 and cos B=8/17 find the value of tan (A-B) is the answer =43/100
89. ### Pre-Calc/Trig

Helpp please State the domain and range of each of the following functions: 1. f(x)=1/(x+3) 2. g(x)=√x+6 3. h(x)=x^3+2x+5
90. ### Math (Trig)

Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)
91. ### Pre-Calculus/Trig...

Help Please For the function defined by: f(x)= (x^2,x≤1) (2x+1,x>1) Define f(0). and also how would i graph f(x)?
92. ### Pre-Calc/Trig...

Am i correct? A vertical shift is an example of a non-rigid transformation. True
93. ### Pre-Calc/Trig

I have looked this up, but still cant figure out what it is.. What is the projectile motion function?
94. ### Pre-Calc/Trig...

Help me please Is the given linear expression a factor of the polynomial? Show work. f(x)=2x^3+x^2-5x+2; x+2
95. ### Pre-Calc/Trig

Help me please. List all possible rational zeros for the polynomial function. p(x)=3x^3-2x^2-5x-2
96. ### Pre-Calc/Trig

Identify the asymptotes, removable discontinuities, and intercepts for the graph of the function. d(x)=(x^2-12x+20)/3x
97. ### Pre-Calc/Trig...

Which of the following could be an example of a function with a domain (-oo,oo) and a range (-oo,2)? Check all that apply. A. y= -(3)^x+2 B. y= -(3)^x-2 C. y= -(0.25)^x+2 D/ y= -(0.25)^x-2
98. ### Trig

Find the arc length of a circle that has a central angle of 270 degrees and a radius of 10 yards.
99. ### Trig

Find the length of a chord intercepted by a central angle of 25 degrees in a circle of radius 30 feet
100. ### Trig Question

Find solutions of the following equation which lie in the interval [0,2pi): 6cos(3theta)/(2)+3=0