# alg/trig

4,413 results, page 4

1. ### 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.
2. ### 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.
3. ### alg

What is the value of the expression 2x^2 y /4xy when x = 2 and y = 1? a)1 b)2 c)3 d)4 Just need to know if my answer is right or wrong and i picked a
4. ### 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
5. ### ALG 2

What is the first term of a geometic series with a summation of 800, 4 terms and a common ratio of 3?
6. ### Math-alg-calc

x^(-1/7)=(1/2) Please help the example given was x^(-1/7)=(1/5) so that solved x=78,125. but i have no idea what to do thanks!
7. ### college alg

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

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

Determine the implied domain of the given function. Express in interval notation (-4x^(2)-3x)/(2)
10. ### math ALG 2!

Write the following value in scientific notation. 7,400,000 7.4x10^3? help?
11. ### 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.
12. ### 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.
13. ### Alg 2

How do you simplify this expression? It gets confusing b/c of logs and exponents. Can someone help me explain how to do this. 8^log(8)x
14. ### 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
15. ### 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)
16. ### trig

find each value by referring to the graphs of the trig functions. 1. sec 4 pi...i got 0 Find the values for theta for which each equation is true. csc (theta)=1 i got pi over 2 +2 pi n
17. ### 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
18. ### alg 2

Write an exponential function whose graph passes through the given points. 1. (0, 3) and (1, 15) 2. (0, -5) and (-3, -135) 3. (0, -0.3) and (5, -9.6)
19. ### Alg.2

find all zeros of the function. f(x) = x^3-10x^2+33x-34 I found 2, using my calculator. What do i do after that?
20. ### 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)
21. ### Alg I

Find a pair of factors for each number by using the difference of two squares. 84 55 80 Please explain. Thanks
22. ### 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?
23. ### College Alg

Use synthetic division and the Remainder Theorem to evaluate P(c). P(x) = 5x5 + 10x3 + x + 1, c = −2 p(-2)=
24. ### 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
25. ### 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 on how to receive the...
26. ### Alg III

Solve each absolute value equation. |x - 3| = 1 Okay here is what I did: x - 3 = 1 x = 4 or x = -4 The book says {2,4} I'm very lost. Can someone help me?
27. ### 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
28. ### college alg

solve the following inequality x^2(8+x)(x-5)/ (x+5)(x-2)> or equal too 0 this looks like a fraction please show work
29. ### 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
30. ### math (final trig problem)

Solve for x on the interval [0,π/2): cos^3(2x) + 3cos^2(2x) + 3cos(2x) = 4 I havent done trig for a while so what exactly does that mean in solving for x on that interval and how would i go about doing that? Where are you getting these tough trig questions?? how about ...
31. ### trig

How do I prove these trig identities? secx-cosx/tanx =sinx And 1+sinx/cosx+ cox/ 1+sinx=2secx
32. ### 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
33. ### 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
34. ### 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
35. ### 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 the measure of said ...
36. ### 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)=?
37. ### 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!:)
38. ### 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
39. ### 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.
40. ### 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 =
41. ### 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
42. ### trig 30

For csc^2 A-1/cot A csc A, what is the simplest equivalent trig expression? The answers I have to choose from are sin A, cosA, tan A or csc A, but I don't know how?? csc theta= 1/sin theta but its ^2. Help please I don't even no where to begin
43. ### 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.
44. ### 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 on the end of π ...
45. ### 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 REPRESENTED
46. ### 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
47. ### 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.
48. ### 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) = 17
49. ### Math (alg 2)

The ratio of two numbers is 3 to 2 and the difference of their squares is 20. Find the numbers.
50. ### Math (alg 2)

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

Can someone tell me how to factor 2a^2b - 16ab + 32b Should I factor 2b out of it?
52. ### alg

Divide: p^2 + 4p - 5 / p^2 + 7p + 10 * p + 4 / p - 1 a) p + 2 b) p + 2 / p + 4 c) p+4 / p+2 d)2 Just need to know if my answer is right or wrong and the answer i picked was c
53. ### 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?
54. ### Pre-Alg

write a translation rule that maps point d(7 -3) onto point d'(2 5)
55. ### pre alg.

26 centimenters per sec. = _ meters per min.
56. ### pre alg

(-4)cubed divided by (-2)cubed -3(-5)squared I got -67 am i correct?
57. ### Alg

State the slope for a line parallel to the line – 5 and containing the point (–3, 7).
58. ### Alg 2

What is the sum of a 12-term arithmetic sequence where the last term is 13 and the common difference is -10?
59. ### Math- Alg 2

Which logarithmic equation is equivalent to the exponential equation below? 3^x=28
60. ### alg

Write an equation of a line whose graph is parallel to the graph of y = 3x – 10.
61. ### Math-Alg

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

write the following absolute value expressions as piecewise expressions: y= abs(2x-4)
63. ### 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!
64. ### alg

change the logarithmic expression to an equivalent expression involving an exponent. 4^16=x log (base4)16=x is it x=e^2?
65. ### math ALG 2!

Write the following value in scientific notation. 23,000,000 i don't understand
66. ### 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?
67. ### alg

solve equation g+4/g-2=g-5/g-8 last one still don't get answer my teacher got was 14, however i got 22.. what was my mistake?
68. ### 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?
69. ### alg/geo

m= 5/6, (8,-9) find the equation of the line having the given slope and containing the given point
70. ### 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
71. ### College Alg

find the intervals on which the function is increasing or decreasing and find any relative minima or maxima. f(x)=0.2x^3-0.2x^2-5x-4
72. ### college alg

solve the following logarithm equation log (4x+7)=1+log(x-6) x=? please show work
73. ### 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
74. ### 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?
75. ### 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?
76. ### 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.
77. ### 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.
78. ### alg 2.

when condensing this expression why is the answer ln5. ln25-ln5
79. ### alg

simplify: 10^C6 a) 60 b) 210 c) 151,200 d) 1,000,000 c
80. ### alg

Which expression represents the sum of the following? 5 / 2t + 1 + -1 / 4t^2 + 4t + 1 a)10t + 4 / (2t + 1)^2 b) 4 / (2t + 1)^3 c)10t + 1 / (2t + 1)^2 d) 4 / 4t^2 + 6t + 2
81. ### alg

Which expression represents the sum of the following? (5)/ (2t + 1) + (-1) / (4t^2 + 4t + 1) a) 10t + 4 / (2t + 1)^2 b) 4 / (2t + 1)^3 c) 4 / 4t^2 + 6t + 2 d) 10t + 1 / (2t + 1)^2
82. ### Alg 2.. HELP?

Multiply or divide. 14. (x^5y5/3)2 16. (a^2b^2)(a1/3b1/4) 18. x2/3 divided by x1/3 20. z4/5 divide by z1/2
83. ### Alg 2

Find the lcd 14/4(x+1) , 7/4x I don't get it can you please explain step by step?
84. ### Trig

Can you please help with this trig question: The angle of elevation to the top of a nearby mountain is 46 degrees. After walking 1 km toward the mountain, you determine the angle of elevation to be 68 degrees. How high is the mountain? Thank you for all your help.
85. ### Alg 2

Can someone tell me how to factor 2a^2 - 16ab + 32b I just need someone to help me get started, and I want to see if I can finish it.
86. ### 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.
87. ### 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.
88. ### 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.

"Express the mixed# as the addition of a whole # and fraction.Then find the value as a single fraction." *i don't understand what it is asking me?!

I forgot how to look for the asymptote from an equation.. can someone please help me out? example: y= x/(x+1) what's the asymptote in this case? Thanks.
91. ### college alg

solve the following exponential equation. (e^x-e^-x)/2=6 what is the exact answer? x=? what is the answer approx to 3 decimal places? x=?
92. ### 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
93. ### 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.
94. ### Math - Alg

How much water must be added to an 80% acid solution to make a mixture of 50mL which is 70% acid?
95. ### 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 first place, there ...
96. ### math-alg

8. In how many ways can 12 books be displayed on a shelf if 15 books are available?: * A. 455 B. 479001600 C 2.17945728 x 1011 2730
97. ### math-alg

8. In how many ways can 12 books be displayed on a shelf if 15 books are available?: * A. 455 B. 479001600 C. 2.17945728 x 1011 D. 2730
98. ### 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!
99. ### alg 2

Provide an example of an arithmetic series which totals zero. Using complete sentences, explain how you created the example.
100. ### 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