# alg/trig

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

how much money is invested at 5% compounded continuously for 3 years will yield \$820?
2. ## alg

find the domain of the composite function f of g. f(x)=x^2+9;g(x)=sqrtx-7 please show work
3. ## Alg I

12r^2 + ____ + 6 How do I solve this ax^2 + bx + c problem. Please explain in detail. I simply do not get it. Thanks.
4. ## Alg III

Solve each absolute value equation. 3 + |x| = 5 My work: 3 + x = 5 or 3 + x = -5 x = 2 or x = -8 The book says that I am wrong. I do not know why.
5. ## trig

Prove the following trig identity: 1 + sinx = sinx(1+cscx)
6. ## algebra/trig

1.Find the domain f(x)=ã(x^(2)-9) 2. Find all six trig functions for (-3,4)
7. ## Trig

Prove the trig identity cos(4x)=2-sec^2(2x)/sec^2(2x)
8. ## trig

prove the trig identity cos(4x) = 2-sec^2(2x)/sec^2(2x)
9. ## Trig

Prove the trig identity cos(4x)=2-sec^2(2x)/sec^2(2x)
10. ## graphing trig functions

for graphing basic trig functions such as y=2sinx or y=1/3cosx, how do you know what the points are to graph with out using a calculator?
11. ## alg 2

Provide an example of an arithmetic series which totals zero. Using complete sentences, explain how you created the example.
12. ## alg 2 check?

1.)solve for n:-7n-21=-63 my answer: n=3 is this correct? please explain 2.)identify the x and y int for te equation 3x-4y=12.
13. ## college alg

the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work
14. ## alg 2

write an exponential function whose graph passes throught the given points... (0,3)and (1,15)...(0,-5)and(-3,-135)...(0,-0.3)and(5,-9.6)
15. ## college alg

the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work
16. ## college alg

the function f(x)=6x+9/3x-7 is one to one. find its inverse and check your answer. f^-1(x)=? please show work
17. ## ALG 2

Determine the standard form of the equation of the line that passes through (-6,6) and (3,-2). My slope is -8/9 Y=mx+b -2=-8/9(3) + b SOLVING FOR b -2=-24/9 + b WHAT DO I DO NOW
18. ## Alg 2

Solve the equation. Check for extraneous solutions. 10 ln 100x - 3 = 117 Thank you in advanced
19. ## Alg

.Write an algebraic expressoin for4 times the sum of q and p HELPPP PLZZZ :)
20. ## ALG 2

What is the first term of a geometic series with a summation of 800, 4 terms and a common ratio of 3?
21. ## Alg. I

I've just begun to study Exponential functions: When you make a table starting with: -2 -4^x What are my coordinates? -1 0 1 2
22. ## alg

In a permutation a) the selections are independent b) some items will never be used c) the order matters d) there must be at least 3 things to choose from
23. ## Trig/Pre-Calc

Need help with current Trig problem for tomorrow: Solve the logarithmic equation algebraically. Approximate the result to three decimal places. 6log3(0.5x)=11 I know to start off the equation you divide by 6. I know the answer is 14.988. I just am puzzled
24. ## Trig

A ramp 38' long rises to a platform. The bottom of the platform is 20' from the foot of the ramp. Find x , the angle of elevation of the ramp. Round your answer to the nearest hundredth of a degree. After this question I'm done with TRIG!!! Thanks
25. ## alg.

write your answer in standard form with integer coefficients. 2x+3y=30; (2,-5) i don't understand how to do this, im not quiet sure i know what its asking.
26. ## alg 2 first final study guide

f (x) =2X^3 + 2x^2 - 3x + 2 please help me set up to find all the real number zeros of the function
27. ## College Alg

Use synthetic division and the Remainder Theorem to evaluate P(c). P(x) = 5x5 + 10x3 + x + 1, c = −2 p(-2)=
28. ## Alg 1

I'm doing quadratic equations x^2 +bx+c =0.I'm supposed to factor each polynomial. I know how to questions like x^2 +8x +12 =0 but this one says, j^2-9jk-10k^2. I'm confused
29. ## Alg 1

Operations with radical expressions: Simplify each quotient 7/sq rt 2 - sq rt 3 Please solve and explain how you did it. What do you do when the denominator is a negative?
30. ## Alg

describe the end behavior of the graph of the polynomial function. Then evaluate the fucntion for x=-4, -3, -2, -1, 0, 1, 2, 3, 4. I'm confused on this. Help.
31. ## math ALG 2!

Find three consecutive integers such that the sum of the second and the third is 17. Which equation would be used to solve this word problem? a.) x + (x + 1) + (x + 2) = 17 b.)(x + 1) + (x + 2) = 17 c.)x + (x + 2) + (x + 4) = 17 d.) 2(x + 2) + 3(x + 4) =
32. ## alg 2

2 questions: 1. Find "a" if (-3,7) is a solution of 2x+ay=26 2. solve system using substitution, linear combination, and graphing: 3x-2y=3 5x+4y=16
33. ## trig

FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6) on the terminal side of the angle in standard position sin alpha cos alpha tan alpha sec alpha csc alpha cot alpha
34. ## trig

if 10 students enter projects in the art show, how many different ways can they come in 1st, 2nd, and 3rd place? would you go 10^3 OR 10TIMES 3? This is not a trig question. Neither of those answers is correct. After making one of ten possible choices for
35. ## trig

Write the expression and evaluate. There should only be one answer which should match the range of the inverse trig function. Sec^-1(-2) sec^-1(-sqrt2) Cos^-1((-sqrt3)/2) Tan^-1(-sqrt3) Could someone explain how to get the answer as well please.
36. ## Alg 2

If I were to graph it, the vertex would be (3,-7) so what would my other point be? Write this equation : y =4(x-3)^2 -7 in standard form . answer: y=4x^2 -24x +29 idk if this is right?
37. ## Alg 2 (HS)

Solve 4^(x+2)= 160 use a cal and round your answer to the nearest hundredth How would I work out this problem? I'm a little confused with this one.
38. ## ALG 2!!!

Write an equation of a line that passes through (9,-5) and (3,-5). Hint: To answer this question, first find the slope using these 2 points.
39. ## Math (Alg 2)

The following expression represents the value of which variable in the solution of the system of equations below? |2 -1 1| |1 2 6| |3 -1 2| ___________ |2 -1 -2| |1 2 3| |3 -1 -1| 2X-Y+Z=-2 X+2Y+6Z=3 3X-Y+2Z=-1 A. Z B. Y C. X D. NONE OF THE VARIABLES ARE
40. ## COLLEGE ALG

use the transformations to identify the graph of the function. then determine its domain, range, and horizontal asymptote. f(x)=4+3^X/3
41. ## alg 2

Use the definitions and theorems of this section to evaluate and simplify the following expression. Be sure to express answers with positive exponents. (m . n)-1 =
42. ## Alg 1 -Further explanation PLEASE

Suppose f(x)=|P(x)|. Determine the range of f (1,-3), (4,1), (3,3), (2,4), (-2,4), (-3,5), (-1,6) Algebra 1 - Damon today at 10:12am Nothing can be negative. No y can be different from x Can you explain further please
43. ## Alg 2

Is there another way to find the roots of 3rd degree and higher polynomials instead of using trial and error (using synthetic division)?
44. ## trig

Write the expression and evaluate. There is only one answer whIch should match the range of the inverse trig function. Sec^-1(-2) Sec^-1(-sqrt2) Tan^-1(-sqrt3) Tan^-1(sqrt3)
45. ## Trig

How do i set this trig problem up? PLEASE help me. Find tan (s + t) given that sin s = 1/4, with s in quadrant 2, and sin t = -1/2, with t in quadrant 4.
46. ## trig

The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s= 2 sin pi t + 3 cos pi t, where t is measured in seconds. (a) Find the average velocity during each time period: (i)[1,2] (ii)
47. ## trig

let P be a point in Q1 such that the slope of the line connecting P to the origin is sq. root of 2 and the distance from P to the origin is 3 units. Find the coordinates of P, state all trig values for angle formed by the line and the positive x-axis, and
48. ## Alg2

i am realy lost as to how to do this alg 2 problem: find the two real-number solutions of each equation: x^2=100 Can you please explain how to do it? Thanks!:)
49. ## alg

rationalize the denominator of the expression assume that all variables are positive ^3ã7/^3ã10 i cant get that sign on my pc its 2nd x2 on a graphing calc
50. ## ALG II

Write each rational expression in simplest form and list the values of the variables for which the fraction is undefined. 1. x^2-7x+12/x^2+2x-15 2. 5y^2-20/y^2+4y+4 3. -7+7a/21a^2-21 4. 5(1-b)+15/b^2-16
51. ## trig

How do I prove these trig identities? secx-cosx/tanx =sinx And 1+sinx/cosx+ cox/ 1+sinx=2secx
52. ## trig

use trig identities to rewrite: (1/(1-cos4v))-(1/(1+cos4v))
53. ## trig

how do i find six trig functions for cos(pi over 2-x)=3/5, cos x=4/5?
54. ## math (trig)

i have some problems doing trig the first one is: Show that cos(x/2) sin(3x/2) = ½(sinx + sin2x) i know that you are supposed to substitute all those trig function things in it but i kind of forgot how to the only that i can see substituting in is the
55. ## college alg

use the transformations to identify the graph of the function. then determine its domain, range, and horizontal asymptote. f(x)=4+3^X/3 please show work
56. ## Alg. 2

Hello so I'm suppose to Determine whether the given binoial is a factor of the polymonial P(x) and here's the question (2x-4); P(x)=2x5-4x4+2x2-2x-4 I keep going over and over it and end up with ridiculous numbers -_- please help! thank you
57. ## trig

1st-the reason i keep change my name because some of my friends are using my computer by their own name to asked questions. we are having a hard time solving each trig problems 2nd- if sin theta=0.6 and 90 degree <theta < 180 degree, find the exact
58. ## trig

find the exact values of the six trig functions of the angle. -750 sin(-750)= cos(-750)= tan(-750)= csc(-750)= sec(-750)= cot(-750)= I've tried this question over and over again and i cannot get it right. i believe -750 is in the fourth quadrant but I'm
59. ## trig

how would you verify this trig identity (1+cos(x) / 1-cos(x)) - (1-cos(x) / 1+cos(x)) = 4cot(x)csc(x) ? help please!
60. ## Trig

Solve the trig equation exactly over the indicated interval. tanθ = 0, all real numbers I know the answer is πn, but I don't understand how they got this. I get that tanθ = 0 on π and 2π on the unit circle, so did they just put n
61. ## math/trig

A ship sailed on a bearing 140 degrees. It was then 90 km south of its orignal position. a) draw a diagram to show the ship's journey b) how far east of its original position is it? what ratio would i need? (sine,cosine or tangent) i know that all trig
62. ## Alg I

Factoring ax^2 + bx + c Find two different values that complete each expression so that the trinomial can be factored into the product of two binomials. Factor your trimonials. 4n^2+ __n - 3 Please explain and solve.
63. ## Trigonometry

Hi, I need help with this question: Use the addition and subtraction formulas ti fubd the exact values of the trigonometric ratios: cos(-7pi/12) Okay, I'm just having trouble with a rather basic part of the question... I wrote cos(pi/4 + pi/3), but now I
64. ## Math/Trig

How would I evaluate these trig functions without using a calculator? U: sin(-13π/6) cot 11π/6 cot(-14π/4) sec 23π/6 Thanks in advance ^^; and if you'd tell me step by step on how to do problems like these I'd be grateful :D

Mr. and Mrs. Sawyer bought a condonminium for \$75,000. Assuming that it value will appreciate 6% a year, how much will the condo be worth iin five years when the Sawyers are ready to move? Steps please.
66. ## trig

If cos(t)=(-7/8) where pi<t<(3pi/2), find the values of the following trig functions. cos(2t)=? sin(2t)=? cos(t/2)=? sin(t/2)=?
67. ## math ALG 2!

Write the following value in scientific notation. 23,000,000 i don't understand
68. ## college alg

solve the following logarithm equation log (4x+7)=1+log(x-6) x=? please show work
69. ## Alg

How would you evaluate this n^(log(n lowered)3)? I don't know how to make the n lower than the log. What would the answer be?
70. ## Alg 1

The formula for the perimeter P of a rectangle is P=2l +2w. What is the result when correctly solving the formula for the variable w?
71. ## Alg

I have to simplify this: (y^(1/4)*Z^4)^(-4/5) My answer: (2z)^(1/2)/4z^4 Correct? Simplify (3-2SQRT2)(SQRT6-5) I have no idea how to foil this one.
72. ## Alg !

What is the sum of the first 4 terms of the arithmetic sequence in which the 6th term is 8 and the 10th term is 13?
73. ## Math-Alg

2. Find the equation of the line which perpendicular to the line -2x + 3y = 32 and passes through the point (-4,-8).
74. ## Alg 2

By what amount does the sum of the roots exceed the product of the roots of the equation (x-7)(x+3)=0? I have no idea what to do!
75. ## alg 1

the perimeter of a rectangle is 24 m. the width is 30 m less than five times the length. find the dimentions of the rectangle.
76. ## alg 2.

how would i condense this... 3lnxy-2ln2y. whenever i condense i get ln(xy^3/2y2). but my teacher has ln(x^3y/4). can someone please show me how to get that answer thanks!
77. ## alg 2

given that one of the zeros of the funiction f(x)=x^3-8x^2+11x+20 is -1, find the sum of the other zeros. hwo do i do this?
78. ## Alg. I

(-5d^-5) (6d^2) -30d^-3 I know that d^-3 goes on the bottom to make it positive;however,does -30 go on the bottom as well? Please explain the rule(s) for this. Thanks
79. ## Math (alg 2)

The ratio of two numbers is 3 to 2 and the difference of their squares is 20. Find the numbers.
80. ## Pre-Alg

write a translation rule that maps point d(7 -3) onto point d'(2 5)
81. ## Alg I

when translating the verbal expression "five more than d" into an algebraic expression, is the answer 5+d or d+5? Aren't they the same?
82. ## Alg 2

What is the sum of a 12-term arithmetic sequence where the last term is 13 and the common difference is -10?
83. ## ALG 2!!!

5 to the second power minus 4 times 4 plus 5 to the second power equals what? it should look like this kinda 5^(2)- 4 x 4+5^(2) please solve
84. ## alg 2 review

write the following absolute value expressions as piecewise expressions: y= abs(2x-4)
85. ## Math (alg 2)

The ratio of two numbers is 3 to 2 and the difference of their squares is 20. Find the numbers.
86. ## college alg

find the equation of a line that is perpendicular to line y=1/6x+6 and contains point (-7,0) y=? please show work so i can see how its done
87. ## alg 2

does the graph of the solution to the inequality 4x-7 > -5 have a closed circle at 3 and is shaded to the right? the (>) is suppose to be on top of the (-) I got 3 and shaded to the right?
88. ## Alg 3

Put the following equations in standard form. State the center and the radius. x^2-5x+y^2+4y=-3 I get how to end up with (-2.5,2), what is the radius?
89. ## alg

if n+5-n+3 over n-3-n-5=16 what is the value of n this is an SAT question and i just cant seem to figure it out..even with pluggin in the numbers it never = 16...so help pls..what is the quickest way in solving this for the SAt's
90. ## Math - Alg

How much water must be added to an 80% acid solution to make a mixture of 50mL which is 70% acid?
91. ## alg

change the logarithmic expression to an equivalent expression involving an exponent. 4^16=x log (base4)16=x is it x=e^2?
92. ## Alg 1

Solve the proportion: 4/x = (radical sign over 11, not -1) 11 - 1/3 Please solve and explain. My answer does not match any of my choices.
93. ## ALG 2

What is the lat term, in a series of 10 terms with a common ratio of 2, a first term (a1) if 1 and a summation of 1023
94. ## alg 2

Given the following functions, perform the indicated operation and state the domain. f(x) * g(x) 3X^1/2*6X^1/3. I got 18X^5/6. But without using a calculator how do i find the domain?????? Thanks:)
95. ## Pre alg

find 2 numbers of the 2nd number if the second number is 11 less than 3 times the first and the sum of 153?

Use the proportion to find the missing length in the following similar figures. x/2 9/4 4.5 18 (My Answer) 8 2.25
97. ## alg 2

a rectangle is to be inscribed in a isosceles triangle of height 8 and base 10. Find the greatest area of such rectangle.
98. ## Alg 2 HELP!

Identify the x-intercepts, local maximum, and local minimum of the graph of f(x)=x^3+2x^2-13x+10 I am confused on where to begin.
99. ## ALG- timed

Find the equation of the circle that passes through the point P(1, 7) and whose center is the point C(4, 3). Then sketch its graph.