Tuesday
July 22, 2014

Posts by Hannah


Total # Posts: 2,828

Math
DOes a line have one or 2 arrows?

5th grade
How do i make a frequency table?

Math(Please check)
Find f X g , g X f , and f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were: f(g(x)) = 3sqrt x^3 + 1 -1 g(f(x)) = 3sqrt (x-1)^3 -1 f(f) = 3sqrt x-1-1 My teacher said these were wrong. Please help. I do not know how to correct th...

Pre-Cal
Find f X g , g X f , and f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were: f(g(x)) = 3sqrt x^3 + 1 -1 g(f(x)) = 3sqrt (x-1)^3 -1 f(f) = 3sqrt x-1-1 My teacher said these were wrong. Please help. I do not know how to correct th...

Math
Nevermind

Math
Find the exact value of the trigonometric function given that sin u = 5/13 and cos = -3/5 1) sin(u-v) My teacher said to make two right triangles and then find the missing parts by the pyth theorem. For the 5/13 triangle I got 12 and the other triangle I got 4. I do not know w...

Math
Thank You

Math
Find the exact value of the trigonometric function given that sin u = 5/13 and cos = -3/5 1) sin(u-v) My teacher said to make two right triangles and then find the missing parts by the pyth theorem. For the 5/13 triangle I got 12 and the other triangle I got 4. I do not know w...

Pre-Cal(Urgent)
Find f X g , g X f , and f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were: f(g(x)) = 3sqrt x^3 + 1 -1 g(f(x)) = 3sqrt (x-1)^3 -1 f(f) = 3sqrt x-1-1 My teacher said these were wrong. Please help. I do not know how to correct t...

Pre-Cal(Please help)
h(x) = 1/x-3 + 1 I know the vertical and horizontal asymptotes but I just need to know the domain. Please help. I am very confused.

Pre-Cal
Find f X g , g X f , and f X f f(x) = 3sqrt x-1 g(x) = x^3 + 1 For f(x) the 3 is little above the sqrt sign. My answers were: f(g(x)) = 3sqrt x^3 + 1 -1 g(f(x)) = 3sqrt (x-1)^3 -1 f(f) = 3sqrt x-1-1 My teacher said these were wrong. Please help. I do not know how to correct th...

chemistry
The maximum concentration set by the U.S. Environmental Protection Agency for lead in drinking water is 15 ppb. What is this concentration in milligrams per liter? How many liters of water contaminated at this maximum level must you drink to consume 1.0 ug of lead?

Pre-Cal
Use the law of cosines to find the angle of Q between the given vectors. v=3i + j w=2i - j

Pre-Cal
Find the component form of v given its magnitude and the anlge it makes with the positive a-axis. v=3 v in the direction 3i + 4J Would the component form be (3,4)?

Pre-Cal
Thank You!!

Pre-Cal
Find the magnitude and direction angle of the vector v. v= 8(cos135 degrees i + sin135 degrees J) I think that the answer is v= 5 and Q = 135. Am I correct?

Pre-Cal
Find the vector v with the given magnitude and the same direction as u. Magnitude: v=3 direction: u=(4,-4) I am not sure what to do here or how to start.

Math(Correction)
There are no parentheses used in the equation. Its just 1 over x-3 and then plus 1 is on the right side.

Math
give the domain of the function and identify any vertical or horizontal asymptotes. g(x)= 1 / x-3 + 1 My answer was x = o and y=3 but this was wrong. Please explain!!

Math
What is the midrange of {6,7,8,9,10,12,15,15,20,28}

Pre-Cal
use a graphing calculator to obtain the graph of the function. What do you observe about its asymptotes? g(x) = 4 [x-2] / x + 1 My answer was there are two horizontal asymptotes. My teacher said that there are two asymptotes but she wants me to find the equation for them. I d...

Pre-Cal
use a graphing calculator to obtain the graph of the function. What do you observe about its asymptotes? g(x) = 4 [x-2] / x + 1 My answer was there are two horizontal asymptotes but it was wrong.

Pre-Cal
Give the domain of the function and identify any vertical or horizontal asymptotes. h(x) = 1 / (x - 3) + 1 I had x = 0 and y = 3. Would the domain be all numbers except 1?

Pre-Cal(Please help)
Give the domain of the function and identify any vertical or horizontal asymptotes. h(x) = 1 / x - 3 + 1 I had x = 0 and y = 3. Would the domain be all numbers except 1?

Pre-Cal
Give the domain of the function and identify any vertical or horizontal asymptotes. h(x) = 1 / x - 3 + 1 I had x = 0 and y = 3. Would the domain be all numbers except 1?

Pre-Cal
what about the domain of 1/x. Would it be 0?

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:)

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

Search
Members