Friday

April 18, 2014

April 18, 2014

Total # Posts: 2,802

**Pre-Cal(Please help)**

Determine the domains of (a)f and (b) f X g f(x) = 1/x g(x)= x + 3 For the domain of f I had x > 0 and for f X g I had all real numbers but this was wrong.

**Pre-Cal**

Determine the domains of (a)f and (b) f X g f(x) = 1/x g(x)= x + 3 For the domain of f I had x > 0 and for f X g I had all real numbers but this was wrong.

**Pre-Cal**

Find two functions f and g such that (f X g)(x) = h(x). (There are many correct answers.) h(x) = 4 / (5x + 2)^2 = My answers were: f(x) = 4 / 5x, and g(x) = 5x + 2 Please explain. These answers were wrong and I do not know how to fix them!!

**Pre-Cal**

Find (a) f X g , (b) g X f, and (c) f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For the f(x) the 3 is little above the sqrt sign. my answers were: (a) = 3sqrt x^4 -1 (b) = x^4 -1 (c) = 6sqrt x+1 These answers are wrong but I do not know how to do this

**Pre-Cal(Please help)**

Find two functions f and g such that (f X g)(x) = h(x). (There are many correct answers.) h(x) = 4 / (5x + 2)^2 = My answers were: f(x) = 4 / 5x, and g(x) = 5x + 2 Please explain. These answers were wrong and I do not know how to fix them!!

**Pre-Cal(Please help)**

Find (a) f X g , (b) g X f, and (c) f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For the f(x) the 3 is little above the sqrt sign. my answers were: (a) = 3sqrt x^4 -1 (b) = x^4 -1 (c) = 6sqrt x+1 These answers are wrong but I do not know how to do this.

**Math **

42/56 in simplest form

**math**

what is the answer to this riddle. what should you say when u meet an angel

**Math**

Find two functions f and g such that (f X g)(x) = h(x). ( There are many correct answers. My answers were f(x) = 4/5x and g(x) = 5x + 2 but this was wrong. I do not know how to do this.

**Math(Please help)**

Find two functions f and g such that (f X g)(x) = h(x). ( There are many correct answers. My answers were f(x) = 4/5x and g(x) = 5x + 2 but this was wrong.

**Math**

Find two functions f and g such that (f X g)(x) = h(x). ( There are many correct answers. My answers were f(x) = 4/5x and g(x) = 5x + 2 but this was wrong.

**Pre-Cal(please check)**

I have to find the width of a river which is represented by a right trianle. The opposite side is labeled w and the adjacent side is 1oo ft. Theta is 54 degrees. Would my equation be opp = adjacent/cos(54)?

**Math**

NEVER MIND!!!!!!!

**Math**

Nick has done 35% of his homework. He had been working for 28 minutes. How long will it take him to finish his homework?

**Math**

solve for r There is a right triangle with the hypotenuse as r , the angle as 45 degrees and opposite side as 20. I am having a hard time finding this out. I had tan 45 = 1.61 20(1.61) = 32.4 but this is wrong.

**Pre-Cal(Please help)**

solve for r There is a right triangle with the hypotenuse as r , the angle as 45 degrees and opposite side as 20. I am having a hard time finding this out. I had tan 45 = 1.61 20(1.61) = 32.4 but this is wrong.

**Pre-Cal**

solve for r There is a right triangle with the hypotenuse as r , the angle as 45 degrees and opposite side as 20. I am having a hard time finding this out. I had tan 45 = 1.61 20(1.61) = 32.4 but this is wrong.

**Pre-Cal**

What is the domain of f/g? f(x) = x / x+1 g(x) = x^3 Please explain! Thank you

**sociology**

what is your experience with bureaucracy or a corporation. Say if it was a good or bad experience for you and why??

**algebra**

i meant james im sorry.. but i solved the problem on my own thank u tho

**algebra**

James invested some money at 12% interest. James also invested $188 more than 4 times that amount at 13%. How much is invested at each rate if Sang receives $2249.57 in interest after one year?

**Math**

Identify n(S) for the given set. S = {f, h,m, r} A) 4 B) 0 C) Infinite D) 3 is the answer c, since the given set can have a unlimted number of elements. or is it b, since the letters are not in order?

**Math**

Identify n(S) for the given set. S = {f, h,m, r} A) 4 B) 0 C) Infinite D) 3 is the answer c, since the given set can have a unlimted number of elements. or is it b, since the letters are not in order?

**Math**

Find two functions f and g such that (f x g)(x) = h(x). h(x) = 4 / (5x+2)^2

**Math**

2) Find f x g, g x f, and f x f f(x) = 3sqrt x-1 g(x) = x^3+1 For the f(x) the 3 is little above the sqrt sign. I do not understand how do find these.

**Math**

1)What is the domain of f/g? f(x) = x/x+1, g(x) = x^3 all real numbers greater than 1. Am I correct? 2) Find f x g, g x f, and f x f f(x) = 3sqrt x-1 g(x) = x^3+1 For the f(x) the 3 is little above the sqrt sign. I do not understand how do fidn these.

**Help!!!**

sin x / 1-cosx is equivalent to: sin x / 1 + cos x Is this right?

**Math(Urgent!!!)**

sin x / 1-cosx is equivalent to: sin x / 1 + cos x Is this right?

**Math**

solve for x: log4 X - log4 2 = 2 log(2x) = 2 Now what do I do?

**Math**

sin x / 1-cosx is equivalent to: sin x / 1 + cos x Is this right?

**Math**

Find the exact values of the vertical asymptotes for o is less than or equal to Q is less than or equal to pi for the function y= cot(3Q) I need to show my work for this one but I do not know how to do this.

**Math(Check)**

Given that tan(Q) = -3/4 and Q is in the second quadrant tell the value of the cosQ cos=-4/5 Correct?

**math (check)**

in which one quadrant is the cosecant negative and the secant positive. Quadrant 4. Is this correct?

**Math(Please Check)**

in which one quadrant is the cosecant negative and the secant positive. Quadrant 4. Is this correct?

**Math(Urgent)**

Find the exact values of the vertical asymptotes for o is less than or equal to Q is less than or equal to pi for the function y= cot(3Q) I need to show my work for this one but I do not know how to do this.

**Math(Please check)**

solve for x: log4 X - log4 2 = 2 log(2x) = 2 Now what do I do?

**Math**

use the sum and difference identities to find the cosine angle cos pi/9 cos pi/3 - sin pi/9 sin pi/3 I do not know how to solve this because pi/9 is not on the unit circle.

**Pre-Cal(Please check)**

1)f(x) = -x + sqrt 4 - x^2 Find f(-2) -(-2) + sqrt 4 - (-2)^2 = 2 + sqrt 4 + 4 2 + sqrt 8 = 4.828 Is this correct?

**Pre-Cal**

1)find f(g(x)) f(x) = x^2 + 2x g(x) = 1/x x^3 + 2x Is this correct? 2) solve: 3^x-1 = 10 ln 3/ ln 10 = .264 Is this correct? I am not sure how to do these. 3) Solve: 3^x+2 - 4 = 12

**Pre-Cal(Please help)**

1)(1-cos^2x)(csc x) ? Is this equal to sec x? 2) Expand: log7 3 sqrt x / x^2y 3) Find and simplify: f(g) F(x) = x^2 + 2x g(x) = 2x x^2 + 2x(2x) = x^2 + 4x Is this correct?

**language arts**

Fill in the blank: The president will _______ well- deserved honors on the retiring ambassador.

**Pre-Cal**

1)(1-cos^2x)(csc x) ? Is this equal to sec x? 2) Expand: log7 3 sqrt x / x^2y 3) Find and simplify: f(g) F(x) = x^2 + 2x g(x) = 2x x^2 + 2x(2x) = x^2 + 4x Is this correct?

**math**

Expand: log7= 3sqrtx / x^2y

**Math**

Expand: log7= 3sqrtx / x^2y

**Math(Please help)**

Solve log3 x + log3 8 = 4

**Math**

Solve log3 x + log3 8 = 4

**Scince**

What is hidrogen?

**Pre-Cal**

Find cos(2x) if sin = 7/25 and x lies in quadrant 1 My answer was 336/625 but this was wrong. I do not know how to figure this out.

**Pre-Cal**

1)tan 5 degrees + tan 25 degrees / 1 tan 5 degrees tan 25 degrees = sqrt 3 / 3 Am I correct? 2) Complete the identity tan^2Q - 3sinQtanQsecQ = -2tan^2Q Correct?

**Math(Please help)**

1)tan 5 degrees + tan 25 degrees / 1 tan 5 degrees tan 25 degrees = sqrt 3 / 3 Am I correct? 2) Complete the identity tan^2Q - 3sinQtanQsecQ = -2tan^2Q Correct?

**Math(Please help)**

1)tan 5 degrees + tan 25 degrees / 1 tan 5 degrees tan 25 degrees = sqrt 3 / 3 Am I correct? 2) Complete the identity tan^2Q - 3sinQtanQsecQ = -2tan^2Q Correct?

**Psychology**

he has a very strong id and a weak super ego

**Physics**

∆L = á Lo ∆T (25.054 cm - 25.000 cm) = á (25.000 cm)(102°C - 25°C) .054 = a(1925) 1925/.054 = 35648.14 Did I solve the equation correctly?

**Pre-Cal**

Perform the addition or subtraction. tanx - sec^2x/tanx tan^2(x)/tan(x) - sec^2x/tanx = tan^2x sec^2x / tanx then I use the identity 1+tan^2u=sec^2u I do not know what to do at this point.

**Pre-Cal**

Simplify the expression 1/tan^2x+1 tan^2x+1 = sec^2x = 1/sec^2x I am not sure what 1/sec^2x is equal to

**Pre-Cal**

Use the fundamental identities to simplify the expression. csc Q / sec Q so this would be 1/sinx / 1/cosx and then 1/sinx times cosx/1 = sin x cosx Is this correct so far? If it is I do not know what to do next.

**Pre-Cal**

Perform the multiplication and use the fundamental identities to simplify. (cotx + cscx)(cotx-cscx) I know that you have to foil first so cot^2x - csc^2x and then use the pythagorean identity 1+cot^2u = csc^2u but I do not know how to simplify.

**Math(Please help)**

Use the fundamental identities to simplify the expression. csc Q / sec Q so this would be 1/sinx / 1/cosx and then 1/sinx times cosx/1 = sin x cosx Is this correct so far? If it is I do not know what to do next.

**Math**

Perform the multiplication and use the fundamental identities to simplify. (cotx + cscx)(cotx-cscx) I know that you have to foil first so cot^2x - csc^2x and then use the pythagorean identity 1+cot^2u = csc^2u but I do not know how to simplify.

**Math(Please check)**

Use the fundamental identities to simplify the expression. tan^2 Q / sec^2 Q sin^2/cos^2 / 1/cos^2 = sin^2 / cos^2 times cos^2 / 1 = The cos^2 cancels out so sin^2 is left. Is this correct?

**Math**

Use the fundamental identities to simplify the expression. csc Q / sec Q so this would be 1/sinx / 1/cosx and then 1/sinx times cosx/1 = sin x cosx Is this correct so far? If it is I do not know what to do next.

**Math**

Match the trigonometric expression: cos^2 [(pi/2) - x] / cos x Does csc x match with this?

**Math**

Approximate the equation's solutions in the interval (0,2pi). sin2x sinx = cosx I know that I should work on the left side first. I know how to solve for the intervals but I am just not sure how to start this off.

**Math(Please help)**

1) Verify the identity cos^4x - sin^4x = cos2x I know that this is the difference of squares so (cos^2x)^2 - (sin^2x)^2 is this correct for the first step?

**Pre-Cal**

Perform the addition or subtraction and use the fundamental identities to simplify. tan x - sec^2 x / tan x I do not know where to start.

**Pre-Cal**

verify the identity sin x(1 - 2 cos^2 x + cos^4 x) = sin^5 x 1-2cos^2 x looks like 2cos^2x-1 its just backwards. I am not sure where to start.

**Pre-Cal**

1) verify the identity sec^2 (pi/2 - x) -1 = cot^2 x I think that we can replace sec with csc for the cofunction formulas since there is pi/2. Since there is squared and a 1 I think we could use one of the pythagorean identites but I am not sure which one.

**Pre-Cal**

1) Verify the identity cos^2 B - sin^2 B = 2 cos^2 B -1 I know that cos^2 B - sin^2 B = 2 cos^2 B -1 by the double angle formula but I do not know how to show this.

**math**

Can someone help me with my math problem? Thank you Write the integer represented by each of the following: a. A collection of 9 red counters and 4 black counters. b. A collection of 7 red counters and 18 black counters. c. A point midway between –45 and 45 on the number ...

**Math**

Hello, Can someone help me with my math problem? Does |k – n| = |k| – |n| for all integers k and n? If so, give 3 examples.If not, give a counterexample.

**math**

okay thank you Ms. Sue

**math**

Oh okay so all you did was multiply 18 and 6 to get 108... but why did (y)get tied to 6?...Can you show me the steps on how to write the expression

**math**

Rewrite the expression in the simplest form without parentheses: 6(18 – y)

**MATH**

thank you Reiny:)

**MATH**

Simplify | –5| – |–3 – 3|

**Child Day Care Management**

The most developmentally appropriate activity for a group of eleven-year-olds would be: a) coloring b) reading silently c) playing Twenty Questions d) surfing the internet

**Child Day Care Management**

The formation of children's core values is most strongly influenced by: a) peers b) family c) elemantary school teachers d) child care providers

**Pre-Cal(Please check)**

1) Find all the solutions of the equation in the interval (0,2pi). sin 2x = -sqrt3/2 I know that the angles are 4pi/3 and 5pi/3 and then since it is sin I add 2npi to them. 2x = 4pi/6 + 2npi 2x = 5pi/3 + 2npi Now I know that I have to divide by 2 but that is where I an not su...

**Pre-Cal(Please check)**

1) Find all the solutions of the equation in the interval (0,2pi). sin 2x = -sqrt3/2 I know that the angles are 4pi/3 and 5pi/3 and then since it is sin I add 2npi to them. 2x = 4pi/6 + 2npi 2x = 5pi/3 + 2npi Now I know that I have to divide by 2 but that is where I an not sur...

**Pre-Cal**

1) Verify that the x-values are solutions of the equation. csc x - 2 = 0 a) x=pi/6 b)x=5pi/6 I know that csc x = 2 but I do not know what to do now.

**Pre-Cal**

I do not know how to find the angle of the function sec 4x = 2 on the unit cirlce. I know I would be looking for 2 but I dont know where since it is sec.

**Pre-Cal (Please help)**

Find all the soultions of the equation in the interval (0,2pi) sin 2x = -sqrt3 /2 sin -sqrt3 /2 is 4pi/3 and 5pi/3 in the unit circle 2x= 4pi/3 + 2npi 2x=5pi/3 + 2npi I do not know what to do at this point

**Pre-Cal**

I do not know how to find the angle of the function sec 4x = 2 on the unit cirlce. I know I would be looking for 2 but I dont know where since it is sec.

**Pre-Cal**

Find all the soultions of the equation in the interval (0,2pi) sin 2x = -sqrt3 /2 sin -sqrt3 /2 is 4pi/3 and 5pi/3 in the unit circle 2x= 4pi/3 + 2npi 2x=5pi/3 + 2npi I do not know what to do at this point.

**Pre-Cal**

what are the angles on the unit circle for the function tan x = -1?

**Math**

I don't understand, can you give me an example when prime factorization is necessary and when it is not?

**Math**

When dealing with GCF, LCM and divisiability do prime factorization help at all?

**Math**

Thank you, Angel

**Math**

How do the GCF, divisibility and LCM connect to fractions

**Science**

Why might a major volcanic eruption lead to coller temps over a large area around the volcano?

**Pre-Cal(Please help!!)**

Consider the function y=arcsin x. a) Use a grapging utility to complete the table. x = -1 -0.8 -0.6 -0.4 -0.2 y = ? ? ? ? ? I am not sure what to plug into the calculator to get the answer.

**Pre-Cal**

1) describe the relationship between the graphs of f and g. My answer was g is a reflection of f about the x axis but this is wrong.

**Pre-Cal(Please check)**

1) Find the Asymptotes: y = -2 sec 2pi x pi/2b and 3pi/2b pi/2(2pi) = pi/4 and 3pi/4 Is this correct? 2) Find the period and asymptotes: y = 1/2 sec pi x / 2 b = pi/2 I do not know how to find the period of asymptotes for this one. My original answer was 1 for the period and p...

**Physics**

If the Kitty Hawk Flyer has 12 HP how would you express this power in the SI system and report the numerical value in kilowatts?

**Physics**

Error

**Physics**

1)

**Science**

Explain 2 reasons why salad dressing is not a solution I think one is it seperates after a while of sitting is that right and I can't think of another

**Pre-cal **

1) Find two values of Q that satisfy the equation. Give your answer is degrees and radians. Do not use a calculator. a) sec Q = 2 -pi/3 and 60 degrees Is this correct? b) sec Q = -2 This one I do not know how to find.

**Pre-cal (Please Check)**

1) Evaluate (if possible) the sine, cosine, and tangent of the angles without a calculator. a) 10pi/3 Sin = -sqrt 3/2 Cos = -1/2 Tan = sqrt 3 Are these correct ? I do not understand when to make them negative. b) 17pi/3 Sin = -sqrt 3/2 Cos = 1/2 Tan = - sqrt 3 Are these corre...

**Math**

1) Find two values of Q that satisfy the equation. Give your answer is degrees and radians. Do not use a calculator. a) sec Q = 2 -pi/3 and 60 degrees Is this correct? b) sec Q = -2 This one I do not know how to find.

Pages: <<Prev | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | **24** | 25 | 26 | 27 | 28 | 29 | Next>>