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Alg2/Trig

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alg2/trig
The expression a/a-b + b/b-a is equivalent to a) 1 b)-1 c) ab/a-b d)a+b/a^2-b^2 please help!

alg2/trig
how would you express cos(75 as a single fraction?

alg2/trig
Which expression is defined for all real numbers? a) x + 3/x^2 b) 5/(x + 2)^2 c)4/(x − 2)^2 d)7/x^2 + 3

alg2/trig
If 4x^2+9=kx, what value of k will produce equal roots? the answer is 12 but i don't understand how you get it, please help!

Alg2/Trig
Write the log as a single function: logx + 2logy - logz

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.

MATH -
Permutation and combinations (Trig/alg2 class) In how many ways can all the letters in SEYCHELLES be arranged?

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

alg2\trig
if a3= 17 & a8=37 are terms in annarithmetic sequece, fina a1 & d. the answer is a1=9 & d=4 but i don't understand how they got the answer, please help!

alg2/trig
To the nearest minute, what is the approximate size of the smallest angle of a triangle whose sides are 4,5, and 8? How do I find the angle?

Alg2/Trig
How would I go about solving this equation algebraically? Find the equation of the parabola y=ax^2 + bx+c that passes through the given points. (2,0) (3,-1) (4,0) Thanks.

alg2/trig
1)3x^2-12x-21 solve by completing the square in simplest radical form 2) (1/x+3)-(2/3-x)=(4/x^2-9)find values of x 3)3/radical(3a^2b^4) is equivalent to 4) factor completely 27x^-75x^4

alg2/trig
starting salary for a job is $30,000 with a guaranteed raise of $5,000 each year for the first 5 years. write an explicit formula to represent how much money you would earn each year. please somone help!

alg2\trig
a colony of 300 bacteria doubles each day. write an explicit formula to determine how many bacteria there would be on the nth day. how would you do this?

alg2/trig
I got this question wrong on my test, and I have to correct it :/ How many permutations are there of all the letters in the word "TEXAS" ? The answer to this part is 120, but I have no idea on how to solve the second part without having to write it all down. *How many of these...

Alg2/trig
Hi, I hope you guys don't mind if I post a couple probability questions. A child returns a five-volume set of books to a bookshelf. The child is not able to read, and so cannot distinguish one volume from another. What is the probability that the books are shelved in the ...

Alg2/Trig
Find the exact value of the trigonometric function given that sin u = 5/13 and cos v = -3/5. (Both u and v are in Quadrant II.) Find csc(u-v). First of all, I drew the triangles of u and v. Also, I know the formula of sin(u-v) is sin u * cos v - cos u * sin v. However, I am ...

ALG2
why is (-125)^-2/3 1/25. why isn't it -1/25?

alg2
for the graph: y>x^2+9 what is the range?

Alg2
I need more help

Alg2
Solve the system for z. 2x - y + 2z = 11 x - 2y - 3z = -5 -3x + z = -3

alg2
how do i solve for: 2^(x+1) =9 3e^(x-8) +5=14 log2x=4 and ln(2x-5)=4? thanks!

ALG2!
1.7 - 0.78>5 solve please

alg2
Solve: 3x − 7 (sqrt x) + 2 = 0

Alg2
what is the # of possibilities of buying 2 CD's from 10 that are on sale?

Alg2
what are the # of possibilities of buying 2 CD's from 10 that are on sale?

Alg2
I need help with problem solving...

ALG2
x2 + bx + c and ax2 + bx + c could you factor this and explain it.

Alg2
# of possibilities of arrangements for the word intercept?

Math(alg2)
solve the exponential equation 5(2)^2x - 4 = 13 thanks

alg2
solve for 10/x^2-2x + 4/x = 5/x-2 3x/x+1 + 6/2x = 7/x 8(x-1)/x^2-4 = 4/x-2 check for any extraneous solutions! thanks!

ALG2!
-3K - 8 is less than or equal to 5k .....solve please

Alg2
Rationalize the demoninator of each expression. (9y/x)^4 i have no idea how to do that

alg2
Describe the end behavior for the graph of y= 12x^6 + 4x^4 - x^3 + 6x +1

Alg2
what is the number of possibilities of arrangements of the letters in the word intercept?

Alg2
Solve the equation -5e^-x + 9 = 6 I subtracted 9 to both sides and got: -5e^-x= -3 < this is where I'm stuck at.

Alg2
Find a quadratic equation with integral coefficients having roots 1/2 and -5/2.

Alg2
how many ways can 5 members of the 100 member US senate be chosen to be put on a committe?

Alg2
How how I write the first six terms of this sequence? Please be detailed and thanks in advance :) f(n)= 3/-m

Alg2
Find the value of c that will make the expression x^2-15x+c a perfect square. would c = 56.25 ?

alg2
run this program given in the lesson to find factors of a) 105, b) 197, and c) 7128 Describe in words the function of f(x) =x - [x]. x>0

alg2 check
a.)write the equation of the line that has a slope of -2 and a y-int of -6. I don't understand if I use y=mx+b or not.how would I plug this in If im trying to get an answer?

Alg2.
4x^5 -2x^3 +2x +4 by 2x+1 synthetic division Would it be like this: 2x+1=0 ; x=-1/2 -1/2 |4 0 -2 0 2 4 | -2 1 .5 0 -1 |___________________ 4 -2 -1 .5 2 3 4x^4 -2x^3 -x^2 +.5x +2 R 3/2x+1 Is this correct? Can you check my answer multiplied by 2x+1 to see if it gives me the ...

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!:)

ALG2
If Y varies inversely as X^2, determine what Y would be if X = 2 and another point on the equation is (1,8). The answer I got was y=1/2^2=1/4 I'm not sure I worked this out correctly, is this correct?

precalc
Suppose that z1=6-8i. Find: A. The Trig Form of the complex number z1, where your theta is in degrees. B. The Trig form of z1*z2, where z2=5[cos(60degrees)+isin(60degrees)] C. The Trig Form of (z1)^4

calculus
1. what trig function has an amplitue of 1 and negative values for angles between π/2 and π? 2. what trig function never crosses the x-axis and has a value of 2 at π/6? are these correct? 3. what trig function has a period of π and is undefined for -π/...

alg2 check?
1.)...(2x)(3x^3)? I said it was x=5 am I right?step by step plz? 2.)....(4xy^2)^3 im not sure about this one

alg2 check
b.)write the equation of the line that passes through the point (-6,-2) and has a slope of -2/3. if im using y=mx+b then how would I plug in -2/3 since it is a fraction instead of a regular number?

math
could someone please refresh my memory of the basic trig functions? ex) cos^2 + sin^2 = 1? That is a trig identity. http://www.sosmath.com/trig/Trig5/trig5/trig5.html

Alg2
How many ways can six different books be arranged on a shelf if one of the books is a dictionary and it must be on an end?

Alg2
If the sum of a geometric series is 781, the number of terms is 5, the common ratio is 5 and the last term is 625, what is the first term a1?

ALG2! WORD PROBLEM!
define a variable and write an inequality for each problem.then solve. Nineteen more than a number is less than 42.

alg2 help
[4x/ 3y]^2 it should look like 4x over 3y in parenthesis ^2 at the top right. please take me step by step I got 1.6

alg2 check?
solve for n:6(5n-1)=2(15n-3) I got 30n-6=30n-6 but I think I was suppose to keep going but don't know how. Do I divide or multiply

alg2 check?
solve: 2x+2(x+3)=2(x+7) what I got was x=4 but I really think I calculated wrong. Can you show me the step by step process please?

Alg2
Zeus Industries bought a computer for $2500. It is expected to depreciate at a rate of 20% per year. What will the value of the computer be in 2 years?

trig
What kind of reflections are the following trig functions? y = 3cos(x-1) y = sin(-3x+3) y = -2sin(x)-4

trig
What is the shift along x of the following trig functions? y = (3sinx/2) + 4 y = -2sin(x)-4 y = sin(-3x + 3)

trig
express the trig. ratios sinA,secA n tanA in terms of cotA.

trig
How do you solve cos(2arcsin 1/4) using inverse trig. functions??!! PLEASE HELP ME!

Trig
Find (if possible) the trig function of the quadrant angle. sec 3pi/2

trig
What kind of reflection does the trig function y = cos(4x/3 minus 1) have?

trig
What kind of reflection does the trig function y = cos(4x/3 minus 1) have?

trig
how do i do this? give the signs of the six trig functions for each angle: 74 degrees?

trig
simplify to a constant or basic trig function.. 1+tan(x)/1+cot(x)

trig
find the 5 trig ratios when sin theta = -5/13 and lies in quadrant 3

Trig
Does anybody know a good website that will help me with finding the six trig functions of a point NOT on the unit cricle?

trig
use the unit circle to find the exact value for all the trig functions of è=2ð/3.

Precalculus
How would you solve this trig function: cos2x=sin^2-2 how do you know what trig identities to use?

Trig
find the exact values of the six trig functions of angle... sin(-315degrees) how do i do this?

trig
I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x0= secx i(x)= cscx

trig
I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x)= secx i(x)= cscx

trig
find the 5 other trig functions if cos(theta) = square root of 2/2 and cotangent is less than 0

trig
if (-12,5) is a pointon the terminal side of an angel 0 find the exact value of six trig funcation of 0

trig
what is the exact value of 7pi for all trig func.?

Trig
Find (if possible) the trig function of the quadrant angle.

trig
write a product of two trig functions that equals 1.

Trig
Solve the following trig equation 2cos(x-π/6)=1

Trig
csc thea= -2, quadrant 4. what are the six trig functions?

trig
TRIG Identities, Gr. 12: Prove: cot4x=1-tan^2x/2tan2x

Alg2
Radioactive iodine is used to determine the health of the thyroid gland. It decays according to the equation y=ae -0.0856t where t is in days. Find the half-life of this substance. Round to the tenths place.

Alg2
Radioactive iodine is used to determine the health of the thyroid gland. It decays according to the equation y=ae -0.0856t where t is in days. Find the half-life of this substance. Round to the tenths place.

Alg2
A piece of wood discovered in an archaeological dig was found to have lost 62% of it's carbon-14. Carbon-14 has a half-life of 5630 years. Determine it's age.

trig
What is the shift along x of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you

trig
What is the shift along y of the trig function y = cos(4x/3 minus 1)? Any link of proof would be appreciated if you have one Thank you

trig
Let Q be an acute angle such that sinQ=.6. Find the values of the following using Trig Identities: cosQ and tanQ

Trig
Use Trig identities to verify that sec^4(x)-tan^4(x)=1+2tan^2(x), Only work with one side of the equation

Please help me with trig.
One more problem.. Given sin t= 3/11 and cos t<0, find the values of the remaining 6 trig functions.

trig
how to i find the six trig values for (7pi/3)

trig
what's the single trig. function of cos6xcosx-sin6xsinx

trig
Suppose that q is in standard position and the given point is on the terminal side of q. Give the exact value of the indicated trig function for q.

alg2 check?
Graph the system of inequalities then substitute the (x,y)order pair into both inequalities. y>3x+1 y<-2/3x+4 (second one has a line under the arrow) I don't get what they are asking for? if they want me to solve it how am I suppose to set it up?

Alg2
Help...Please... You buy a commemorative coin for $25. The value of the coin increases 3.25% per year. How much will the coin be worth in 15 years? Round to the nearest cent.

Alg2
Please Help... You buy a commemorative coin for $25. The value of the coin increases 3.25% per year. How much will the coin be worth in 15 years? Round to the nearest cent.

trig 26
simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v change expression to only sines and cosines. then to a basic trig function. 2. sin(theta) - tan(theta)*cos(theta)+ cos(pi/2 - theta) 3. (sec y - tan y)(sec y + tan y)/ sec y combine fractions and simplify ...

Trig
The next two steps in solving this trig identity question are ??? 1/csctheta x costheta x sintheta x sectheta = sinsqtheta arghhh need help please

trig
What is the range of the trig function sin(-3x+3)?

Trig
Trig Identity. 1-sin^2x/1-cosx

trig
write 2+2 squareroot of 3i in trig form.

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