# alg/trig

4,424 results, page 10
1. ## alg application

two cars leave the station at 9:00 am. the first car head due south at an avg speed of 54mph. the second car heads due west at an avg speed of 72mph. how far apart will the cars be at 1:00pm? my solution: 360mi is this correct
2. ## Alg.2

The membership to your local video store is flat rate of \$10/year and the DVD rental rate is \$3.95/DVD. Write an equation that models the total amount of money you will spend on DVD rentals this year. How many DVD's can you rent if you spend \$500/yr.?
3. ## 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!
4. ## alg

Sound intensity (loudness) varies inversely as the square of the distance from the source. If a rock band has a sound intensity of 100 decibels 25 feet away from the amplifier, find the sound intensity 50 feet away from the amplifier.
5. ## ALG WORD PROBLEM

The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 9 amperes when the resistance is 940 ohms. What is the current when the resistance is 580 ohms? Thank you yet again. Almost through with this
6. ## alg

identify the conic section. if its a parabols give the vertex if its a circle, give the center and radius. if it is an ellipse or a hyperbola, give the center and foci. again my teacher said the answer is ellipse with center (-4,4), foci at (-4± V3, 4)
7. ## Trig

if tan(x)=9/4, find cos(x) if pi<x<3pi/2
8. ## Trig

What are some real life applications of logarithims?
9. ## trig

if A+B=45 degree show that (cos A-1)(cotB-1)=2.
10. ## algebra/trig

x^2+2x-15=0 solve by completing the square
11. ## trig

using the given point (9, squareroot 19) find the value of cosx
12. ## trig

y=sin pie divied by 2 theta
13. ## Trig

What are some real life applications of logarithims?
14. ## Trig

How to find all solutions for 3tan^22x-1=0?
15. ## Trig

cos x cot = csc - sin
16. ## Trig

Find the area of quadrilateral whose verties are A(0,2), B(2,7), C(6,10), and D (9,-2).
17. ## trig

find the exact radian of 84 degrees
18. ## trig

how to do this? how much does this equals? 2cos160*cos140*cos100
19. ## trig

find the limit of the sequence if it exists tn= 6/n

21. ## trig

use pythagorean theorem to solve for the value of x and y of a 60-60-60 degrees.
22. ## TRIG

What is the 6th term of the geometric series with a1= -5 and r=2.5
23. ## trig

(1) tan^2x(1+cot^2x)= _____________ (1-sin^2x)
24. ## trig

is there a lowest or least cosine of a triangle with sides of 4,5,and 6? such as: .78, .72...
25. ## Trig

(Tan/cot)- (sec/cos)
26. ## Trig

4x+y=​0, x≥0 help finding Sin, Cos, Tan for this
27. ## math

simplify sin(540-2x) this is to do with trig
28. ## trig

x^2 - 3y^2 - 8x + 12y + 16 = 0 What is the center and the domain of the equation?
29. ## Trig

Solve:cos^2x=1 for 0 < x is less than or equal to 2pi
30. ## trig

Why are the quadrants situated and numbered the way they are.What is the purpose.
31. ## trig

Find the dot product of u and v u= 3i+7j v= 11i-5j
32. ## trig

find the supplimentary angle of pie over 8
33. ## trig

Determine whether the vectors are parallel, perpendicular or neither. 1) v = (4,1), w = (1,-4) 2) v = (2,3), w = (4,6) 3) v = (2,3), w = (3,-3) Please and thanks!
34. ## Trig

give the value of tan(arctan x+1/x-1+arctanx-1/x)
35. ## trig

give and exact value for cos(2pi/3)
36. ## Trig

If = 58° and m = 120 in, what is the value of n to the nearest tenth of an inch?
37. ## Trig

cos4x*cos3x + sin4x*sin3x
38. ## trig

tanx sin^2x capital sigma [0,2p]
39. ## Math (Trig)

What does sec^2(-2) equal? Can you explain why?
40. ## trig

Find the value of theta (in radians) corresponding to the point (6,-8)
41. ## Trig

Find the area of a triangle whose vertices are A(0,2), B (2,7), C (0,10).

43. ## trig

for the graph of y=-5sin x/2, state frequency
44. ## trig

if sin and sec of theta are less than zero what quadrant is it in
45. ## trig

How can I find the exact value of 4cos(7ð/4)-2sin(ð/3)?
46. ## trig

solve for x if x is in radians. cos2(x) + 4cos(x) = -3
47. ## trig

How do i solve Cos (4x)(2+tan^2X0 = 8?
48. ## Trig math

How do I solve for x? cos(4x)(2+tan^2x)=8
49. ## trig

sec8A-1/sec4A-1=tan8A/tan2A
50. ## trig

find the value of cosec(-120 degrees)
51. ## equations trig

8sin^2x+sinxcosx+cos^2x=4
52. ## algrebra 2 / trig

solve the triangle a=1 b=2 C=50 degrees
53. ## Precal/trig

sina=3/5, pi/2<a<pi evaluate cos2a
54. ## Trigonometry

Use trig form to find quotient 3/(2+3i)
55. ## trig

what is the classified given angle of 177 degrees?
56. ## trig

4 costheta +3sintheta=5,4sintheta-3costheta=WHAT
57. ## trig

Find the exact value of Cos(sin-1ã(3/2))
58. ## Inverse Trig

What is the general solution to y = arcsin 0?
59. ## trig

sin2xcosx-sinx=0 interval(0,2pi)
60. ## Trig

Ok i understand how to do these I'm just stuck on this one: secx + tanx = 1
61. ## trig

my last question was supposed to say 0 degrees instead of ) sorryyy

63. ## trig

cos@-4SIN@=1 then sin@+4cos@=
64. ## trig

find the limit of the sequence if it exists tn= 6/n
65. ## Trig

Multiply and Simplify. ( 1 + cot θ )^2
66. ## trig

solve the equation 2sin^2X - 3sinX= -1
67. ## Trig

Cos(2theta)=-1/2 There are 6 solutions, how do i solve this?
68. ## Trig

What is the sum of the arithmetic series where n=50 , t1=9 and t2=331
69. ## Inverse Trig

What is the general solution to y = arcsin 1?
70. ## trig

1=2pi times the square root of (L/9.8)
71. ## Trig

Rewrite 6x^2 - sqrt(3)xy + 5y^2 - 9 = 0 with the xy term eliminated.
72. ## trig

for a tangent graph is one of the asymptotes AWLAYS at - pi/2 ?

74. ## trig

Please graph the following function: y = tan (2(theta) + (pi)) + 1
75. ## Trig

Convert 2xy = 1 to polar form.

77. ## Trig

What expression represents the same value as sin 19(degrees)?
78. ## trig

cos 8 degrees fo feet 25 inches??
79. ## Pre-Calc/Trig

How would I solve this one? I just can't get this one. 6x^2+11x-35=0
80. ## trig

simplify the expression. cot^2(x)-csc^2(-x)
81. ## trig derivatives

How do I find the derivative of 6 + 8cosx?
82. ## trig

Tan x cot x -1=1-sec x cos x
83. ## Trig

Solve 2cos sq x = 1 using the unit circle.
84. ## trig

tan^2(5x)cos^4(5x) = 1/8 - 1/8cos(20x)
85. ## Trig

the center of a circle x^2 + y^2 + 8y =1 is a. (0,-2) b. (0,4) c. (0,1) d. (0,-4) I believe the answer is (0,4) Am I correct ?
86. ## trig

tan^2(5x)cos^4(tx = 1/8 - 1/8cos(20x)
87. ## Trig

The center of the circle (x+2)^2 + (y-3)^2 =1 is a. (2,3) b. (-2,3) c. (2,-3) d. (-2,-3) I believe b. is the answer, is that correct?
88. ## trig

If (m+2)sin ø + (2m-1)cos ø = 2m+1 then tan ø is equal to
89. ## trig

If sin = -3/5 with A in QIV, find cos A/2
90. ## trig

how do i find cosX if i am given sin x= -4/5 and tan <o???
91. ## trig

Multiply and simplify. (cos x - sin x)^2
92. ## trig

Describe the changes in the graph of the following funciton h(t) = sin(4/3 - 2t)
93. ## Pre-Calc/Trig

Have i solved this correctly? x^2+3x-28=0 (x+7)(x-4)=0 x=-7 or 4
94. ## Pre-Calc/Trig

How would I solve this? x^2+10x+24=0
95. ## Trig/ algebra 2

if f(x) = sin4x-cos2x, find f(pi/8)
96. ## trig

Solve system of inequalities by graphing Y<2-x Y>x+4
97. ## Pre-Calc/Trig...

Solve using any method. 1. 2x^2+5x-3=0 2. -x^2+x+1=0
98. ## trig

I need help finding derivatives and antiderivatives. Given: f(x),find f'(x) 1. f(x)-2x^6 2. f(x)= -3x +7 3. f(x)= 3x^2 - 5x 4.f(x)= 1/2x^2 - x + 4
99. ## trig

For which angles ¦È, with 0¡ã ¡Ü ¦È ¡Ü 180¡ã, is sin 3¦È = -1? How do I set this up?
100. ## algebra-trig help asap

x=sec^-1 2 I really need help with this problem. Thanks