Sunday

April 20, 2014

April 20, 2014

Number of results: 76,600

**Trigonometry**

Thank you for your help. It's just that I didn't take functions in grade 11 and now I'm taking Advanced Functions in grade 12 and I'm difficulty with. Thanks for your help though.
*Sunday, November 24, 2013 at 4:10pm by Jessy*

**Grade 12 Advanced Functions**

Thank you!!!!
*Thursday, October 13, 2011 at 8:54am by Rebecca*

**Grade 12 Advanced Functions**

Ummmmm, I needed help with the second part
*Thursday, October 13, 2011 at 9:10am by Anonymous*

**Grade 12 Advanced Functions**

Divide by x+3 and see what you get: x^3 + 4x^2 + x -6 = (x+3)(x^2 + x - 2) = (x+3)(x+2)(x-1) Got it now?
*Thursday, October 13, 2011 at 9:10am by Steve*

**Math grade 12 Advanced Functions**

Sorry about that, it's 20.50x
*Friday, January 25, 2013 at 11:42am by Anonymous*

**Grade 12 Advanced Functions**

The polynomial 2x^3+px^2-x+6 has a remainder of zero when divided by x-2. Calculate p.
*Thursday, October 13, 2011 at 8:54am by Rebecca*

**Grade 12 Advanced Functions**

Ummm, didn't MathMate just do one of these for you? Plug in -3 and evaluate to find c.
*Thursday, October 13, 2011 at 9:10am by Anonymous*

**Grade 12 Advanced Functions**

what about this question: Determine the roots algebraically by factoring. a) x^3-8x^2-3x+90=0
*Thursday, October 13, 2011 at 9:10am by Confused*

**Advise**

Ok, I am going to grade 12 and my university requires a 90% for advanced functions. In grade 11, I got a 78% with no tutoring. Is there who is willing to help me free of cost for tutoring or even websites that would help me.
*Friday, September 3, 2010 at 6:27pm by prethy*

**math advanced functions grade 12**

Find the solution set to the following rational inequality, 240/x+8 > 20x/x+1
*Tuesday, July 24, 2012 at 6:25pm by illiah*

**Grade 12 Advanced Functions**

One zero of f(x)=x^3+4x^2+x+c is -3. a) calculate the value of c. b)calculate the other zeros.
*Thursday, October 13, 2011 at 9:10am by Rebecca*

**Grade 12 Advanced Functions**

P(x)=2x^3+px^2-x+6 = (x-2)Q(x)=0 Since (x-2) is a factor of P(x), evalulate P(2) and equate the result to zero: 2(2)^3+p(2)^2-(2)+6 = 0 16+4p-2+6=0 4p=-20 p=-5
*Thursday, October 13, 2011 at 8:54am by MathMate*

**Grade 12 Advanced Functions Math**

90 = 10 log [ I/F] Use the properties of logarithms to isolate I. 9 = log(I/F) 10^9 = I/F
*Tuesday, January 19, 2010 at 12:06am by Marth*

**Advanced Functions**

if cosx = 5/13, (recognize the 5,12,13 triangle ?) sinx = 12/13 tanx = 12/5 if cosy = -5/13 and y is in III siny = -12/13 tany = 12/5 2sinx+2siny+2cosx-2tanx+tany+2cosy = 2(12/13) + 2(-12/13) + 2(5/13) -2(12/5) + (12/5) + 2(-5/13) = - 12/5 or -2.4
*Tuesday, November 19, 2013 at 8:12pm by Reiny*

**Advanced Functions math**

Yes to get that i did: (5^x)^2 - 4(5^x) =12 5^x(1-4) = 12 -3(5^x)= 12 log(5^x) = log(-4) If you could show me the correct way to do it, that would be great! thanks!
*Monday, January 18, 2010 at 9:58pm by Diana*

**12th grade-Advanced functions**

Given that f(x)=g(x/3), describe how the graph of f and g are related?
*Friday, July 30, 2010 at 3:28pm by aaron*

**advanced functions/precalculus**

1. The function f(x) = (2x + 3)^7 is the composition of two functions, g(x) and h(x). Find at least two different pairs of functions g(x) and h(x) such that f(x) = g(h(x)). 2. Give an example of two functions that satisfy the following conditions: - one has 2 zeros - one has ...
*Wednesday, January 15, 2014 at 2:33am by Diane*

**12th grade - Advanced Functions**

thanks so much Reiny! :D for correcting my mistake and for the answer!
*Monday, July 19, 2010 at 9:54pm by Nish*

**12th grade-Advanced functions**

the y-intercept of the graph of y=k(x-1)(x-2)(x-3) is 24 Determine the value of k.
*Friday, July 30, 2010 at 4:13pm by aaron*

**12th grade-Advanced functions**

Determine the instantaneous rate of change of y=tanx at x=1 to 3 decimal places
*Friday, July 30, 2010 at 5:14pm by sean*

**advanced functions grd 12**

i didnt know how to put the root in so i converted it by adding in the 1/2 exponent! thank you :)
*Tuesday, May 8, 2012 at 7:03pm by kerry*

**gr 12. advanced functions **

Trig identity Prove: cos2x tan(pie/4 - x) ------- = 1 + sin2x
*Saturday, November 21, 2009 at 10:40am by avm*

**aadvanced functions HELP!**

nope i don't, the school makes it manditory to take advanced functions before calculus
*Wednesday, December 10, 2008 at 9:43pm by james*

**Math grade 12 Advanced Functions**

3. Using proper grammar 1 point 3. What is the value of x + y? (5 points) Rubrics: 1. Writing the correct equation(s) 1 point 2. Showing steps 1 point 3. Solving for x 1 point 4. Solving for y 1 point 5. Solving for x + y 1 point
*Friday, January 25, 2013 at 11:42am by Anonymous*

**Advanced Functions**

Beginning with the function f(x) = (0.8)x, state what transformations were used on this to obtain the functions given below: g(x) = - (0.8)x -2 h(x) = ½ (0.8)x-2 k(x) = (0.8)-3x+9
*Wednesday, January 12, 2011 at 4:05pm by Hailey*

**Advanced functions/precalculus**

#1. g(f) = f+2 = x^2+2 f(g) = g^2 = (x+2)^2 so, when do we have x^2+2 = (x+2)^2 ? #2. f and g are both defined only on {-1} #3. visit wolframalpha.com (fg)(x) = -6x^2+x+12
*Wednesday, January 15, 2014 at 2:24am by Steve*

**Math grade 12 Advanced Functions**

A company uses the function C(x)=20.50+2000, where C is the cost and x is the number of units it produces, to determine its daily costs. Find the inverse of the function and determine how many units are produced when the cost is $625,000.
*Friday, January 25, 2013 at 11:42am by Anonymous*

**Advanced Functions - Grade 12**

The function C (t) = 0.16t/t^2 + t + 2 models the concentration, C, in milligrams per cubic centimetre, of a drug entering the bloodstream over time, t, in minutes. a) Sketch the graph of the relation. b) Explain the shape of the graph in the context of the concentration of ...
*Tuesday, July 20, 2010 at 12:26am by Nish*

**Math Grade 12 Advance Functions**

I need help understanding equivalent trigonometric functions! Can someone PLEASE help me because the test is tommorrow and the internet or my textbook isn't helping at all!
*Wednesday, December 19, 2012 at 12:31am by Buddy*

**12th grade-Advanced functions**

provide any 2 solutions for the equation y=cot(1/2(theta-pi/2))-5 solutions may be in degrees
*Monday, July 19, 2010 at 10:29pm by aaron*

**12th grade-Advanced functions**

Determine the vertical asymptotes of the graph of graph of y=secx/logx for x≤2pi
*Friday, July 30, 2010 at 12:35pm by aaron*

**advanced functions. gr.12**

2^2x+ 3(2^x) - 10 = 0 6^2x-2(6^x)-15=0 3^4^5^x =336
*Tuesday, August 11, 2009 at 3:25pm by ashley*

**Check my CALCULUS answers please! **

Any short explanation for things I got wrong would be great, too, if possible! Thanks in advanced! :) 8. Which of the following functions grows the fastest? ***b(t)=t^4-3t+9 f(t)=2^t-t^3 h(t)=5^t+t^5 c(t)=sqrt(t^2-5t) d(t)=(1.1)^t 9. Which of the following functions grows the ...
*Monday, October 7, 2013 at 12:08pm by Samantha*

**Advanced Functions**

Determine the value of Tan2x when Sinx = -12/13 and 3pi/2 < x < 2pi.
*Wednesday, January 14, 2009 at 8:14pm by Lisa*

**advanced functions **

x is in a 3-4-5 triangle y is in a 12-13-5 triangle
*Sunday, November 1, 2009 at 6:08pm by bobpursley*

**Advanced Functions math**

Could someone help me with this question? 5^(2x) - 4^(5^x) = 12 I got up to log (5^x)= log(-4) but it isnt correct since it can't be negative.
*Monday, January 18, 2010 at 9:58pm by Diana*

**math-advanced functions**

on my exam review, i have this question for composition of functions Given f(x)=3x^2+x-1, g(x)=2cos(x), determine the values of x when f(g(x))=1 for 0≤x≤2π.
*Thursday, January 23, 2014 at 9:32am by Liz*

**12th grade Advanced Functions**

A generator produces electrical power, P, in watts, according to the function: P(R)= 120/ (0.4 + R)^2 where R is the resistance, in ohms. Determine the intervals on which the power is increasing.
*Sunday, October 25, 2009 at 7:50pm by Anonymous*

**Grade 12 Advanced Functions Math**

Hello! Can someone please help me out for this question? The loudness, L, of a sound in decibels can be calculated using the formula L= 10 log(I/ F) where I is the intensity of the sound in watts per square metre and F= 10^ -12 . A singer is performing to a crowd. Determine ...
*Tuesday, January 19, 2010 at 12:06am by Joan*

**University**

Will I get a conditional offer to McMaster in the first round? The following is the admission for Commerce I to McMaster: "Grade 12 U/M course requirements: * English U * Advanced Functions 4U * One of: Calculus & Vectors 4U or Mathematics of Data Management 4U (additional ...
*Thursday, January 31, 2008 at 5:36pm by Anonymous*

**Math (Grade 12)**

I need help with this problem (composite functions): If f(x) = 4x-3 and h(x )= 4x^2-21, find a function g such that f(g(x)) = h. I don't understand how we're supposed to combine the functions. Oh, and the answer is supposed to be g(x) = x^2 - (9/2). Thanks!
*Wednesday, September 17, 2008 at 5:50pm by Lucy*

**Advanced Functions - Grade 12**

The maximum time, T, in minutes, a scuba diver can rise without stopping for decompression on the way to the surface is modeled by the equation T (d) = 525/d-10 , d > 10, where d is the depth of the dive in metres. a) sketch a graph of this relationship. b) use the graph to...
*Tuesday, July 20, 2010 at 12:24am by Nish*

**12th grade - Advanced Functions**

the height, h, in meters, of a gold ball t seconds after is is hit can be modelled by the function: h (t) = 4.9t^2 + 32t + 0.2. When is the height of the ball 15 m?
*Monday, July 19, 2010 at 9:54pm by Nish*

**Advanced Functions**

Tan2x is Sin2x/cos2x but Sin2x is 2sinxcosx and Cos2x=1-2sin^2x you know sinx, and you can find cos x from pyth theorm (sides of thriangle are 13, 12,5)
*Wednesday, January 14, 2009 at 8:14pm by bobpursley*

**ADVANCED FUNCTIONS**

thank you!
*Monday, June 10, 2013 at 6:57pm by Anonymous*

**advanced functions/precalculus**

1. Given f(x)=x^2 and g(x)=x+2, determine in standard form: a)g(f(x)) b)when f(g(x))=g(f(x)) for #1 would the answer for a be x^2+2? 2. Given the functions f(x)=5x+7 and g(x)=√x state the domain of g(x) and g(f(x)) 3. Why is point (a,a) a point on f-1(f(x)) if (a,b) is a...
*Monday, January 13, 2014 at 9:35pm by Diane*

**Advanced Functions/Precalculus**

11π/12 is π/12 short of 2π so tan 11π/12 = -tan π/12 I know tan 2π/12 = tan π/6 = 1/√3 tan 2π/12 = 2tanπ/12/(1 - tan^2 π/12) let x = tan π/12 for easier typing so 1/√3 = 2x/(1 - x^2) 2√3x = 1 - x^2 x^2 + ...
*Wednesday, December 4, 2013 at 2:13pm by Reiny*

**Advanced Functions**

I guess so
*Tuesday, November 19, 2013 at 8:49pm by Sam*

**advanced functions**

where do we get the 570 from?
*Thursday, February 20, 2014 at 5:13pm by collard*

**Advanced Functions/Precalculus**

2. 7sin^2x - 4sin2x/cosx = -1 7sin^2 x - 4(2sinxcosx)/cosx = -1 7sin^2x - 8sinx + 1 = 0 (7sinx - 1)(sinx - 1) = 0 sinx = 1/7 or sinx = 1 if sinx = 1 x = 90° or π/2 if sinx = 1/7, then x = aprr 8.2° or 171.8° 3. cos 2Ø = cos^2 Ø - sin^2 Ø given: tan Ø = 3/4 (I recognize ...
*Wednesday, December 4, 2013 at 11:15pm by Reiny*

**advanced functions HELP!!!**

72y2-98
*Wednesday, December 10, 2008 at 8:55pm by Dana*

**Advanced functions**

Solve: a) 1/(2^x) = 1/(x+2) b) 1/(2^x) > 1/(x^2)
*Sunday, October 25, 2009 at 12:30am by Anonymous*

**Advanced Functions**

Solve: (1/2^x) > (1/x^2)
*Sunday, October 25, 2009 at 10:23pm by Anonymous*

**Advanced Functions**

R u sure thats right?
*Monday, November 14, 2011 at 10:17am by Kailla *

**advanced functions grd 12**

im not sure wheer to start and how to do solve this problem solve: cosX(2sinX-3^1/2)=0 ,0<(or equal to)X<(or equal to)2(pie sign)
*Tuesday, May 8, 2012 at 7:03pm by kerry*

**advanced functions-logarithms**

2e^x=10
*Wednesday, March 7, 2007 at 8:36pm by Karman Stevens*

**math(advanced functions)**

describe it, I will critique.
*Friday, November 4, 2011 at 4:01pm by bobpursley*

**advanced functions**

Solve for x, x ϵ R a) (x + 1)(x – 2)(x – 4)2 > 0
*Friday, July 5, 2013 at 2:07pm by FUNCTIONS*

**Advanced Functions**

They were the most obvious ones.
*Tuesday, November 19, 2013 at 8:49pm by Reiny*

**Advanced Functions/ Precalculus Log**

Thanks a lot!
*Thursday, December 19, 2013 at 11:42pm by Jessie*

**Advanced Functions**

So we want h=7 when t=0 or 7 = 10sin((pi/15)(-d)) + 12 -.5 = sin((pi/15)(-d)) the reference angle is pi/6 .... ( sinpi/6 = 0.5) so (-pi/15)d = pi + pi/6 or 2pi - pi/6 or -pi/6 if we let (-pi/15)d = -pi/6 d = 5/2 so h = 10 sin ((pi/15) (t-5/2)) + 12 check: when t = 0, h = 10sin...
*Friday, November 20, 2009 at 8:38pm by Reiny*

**Grade 12- Advanced Funtions**

what about this question: Determine the roots algebraically by factoring. a) x^3-8x^2-3x+90=0
*Thursday, October 13, 2011 at 6:09pm by Confused*

**Advanced Functions**

1. V= C - rtC, Eq: V = C(1 - rt). V = value. C = cost. r = rate expresed as a decimal. t = time in years. 2. V = 23000(1 - 0.12*2), V = 23000 * 0.76 = 17480. 3. V = 23000(1 - 0.12t) = 2300, 23000(1 - 0.12t) = 2300, Divide both sides by 23000: 1 - 0.12t = 0.1, -0.12t = 0.1 - 1...
*Wednesday, January 12, 2011 at 4:04pm by Henry*

**Advanced Functions**

How do you write -1/9 x^-1 with a positive exponent? also, -5 x^-2 ??
*Monday, November 1, 2010 at 10:23am by Ali*

**math(advanced functions)**

what are the key features of x/(x^2-3x+2)?
*Friday, November 4, 2011 at 4:01pm by hi*

**math(advanced functions)**

what are the key features of x/(x^2-3x+2)?
*Friday, November 4, 2011 at 4:01pm by hi*

**math(advanced functions)**

yes and domain and range pls.
*Friday, November 4, 2011 at 4:01pm by hi*

**advanced functions**

Solve for x, x ϵ R ¨Cx3 + 25x ¡Ü 0
*Friday, July 5, 2013 at 2:08pm by FUNCTIONS*

**advanced functions**

its *h(t)=-2t^3+3t^2+149t+410,
*Thursday, February 20, 2014 at 5:13pm by collard*

**12th grade-Advanced functions**

Vertical asymptotes occur when the denominaotrs of your function equal zero. y = secx/logx is the same as y = 1/(cosx logx) so you would have those asymptotes when cosx = 0 or logx = 0 x = pi/2 or 3pi/2 or x = 1
*Friday, July 30, 2010 at 12:35pm by Reiny*

**trig**

I got the quartic by moving the sin to the right, squaring both sides, then multiplying everything by sin^2 and then changing the cos to sin. My friend gave me this question, and he got it from his virtual school for gr 12 advanced functions lol.
*Friday, May 2, 2008 at 12:10am by william*

**advanced functions**

nvm on this question, the symbol is supposed to be pie
*Monday, January 21, 2008 at 9:05pm by Mel*

**advanced functions**

Prove that cscx / cosx = tanx + cotx
*Saturday, November 7, 2009 at 10:15pm by ariza*

**advanced functions**

Solve 2tan^2x + 1 = 0 Interval : [0, 2 pi]
*Sunday, November 15, 2009 at 12:25am by -*

**math(advanced functions)**

how would describe it at x=0, and x=inf, and any asymptotes?
*Friday, November 4, 2011 at 4:01pm by bobpursley*

**Advanced Functions math**

ah, but now you changed the question. In the original you had 4 raised to the (5 raised to the x) in the middle term Now you have 4(5^x) This last version makes it easy, the first version would be a nightmare. If it is (5^x)^2 - 4(5^x) =12 then let's let y = 5^x our equation ...
*Monday, January 18, 2010 at 9:58pm by Reiny*

**7th grade advanced math**

I do. Have you considered pasting that problem into the Google Search window, and pressing enter? I am wondering why this is called advanced math.
*Wednesday, September 10, 2008 at 3:44pm by bobpursley*

**advanced functions**

The revenue and cost functions for the housing developer are: C(n) = 8 + 0.065n R(n) = 1.6 √n Suppose that the developer found a way to reduce her variable cost to $58 000 per house. How would this affect: i) the minimum and maximum number of houses she could build? ii) ...
*Monday, January 11, 2010 at 4:11pm by Anonymous*

**Advanced Functions math**

I don't know if this will show up properly, but do you mean 52x - 45x = 12 ? How did you get log(5^x) = log(-4) ??
*Monday, January 18, 2010 at 9:58pm by Reiny*

**Advanced functions**

Solve x^3 -3x^2 +5x +4 = 0 using Tartaglia's method.
*Sunday, October 25, 2009 at 6:39pm by josh*

**Advanced functions**

Solve x^3 -3x^2 +5x +4 = 0 using Tartaglia's method.
*Sunday, October 25, 2009 at 6:41pm by josh*

**Advanced Functions 2**

are the exponents (a-b) and (a+2b) You have to use grouping symbols.
*Monday, November 1, 2010 at 10:26am by bobpursley*

**math advanced functions**

angle=5/2.5=2 radians= 2*180/PI degrees
*Tuesday, July 24, 2012 at 6:23pm by bobpursley*

**Ms, Sue help me in science**

Your welcome. Im advanced in some work for my age. Im a 12 year old poet, and in advanced reading and math. Thank you. :)
*Tuesday, April 10, 2012 at 8:24pm by ♥rebel•stupidity=kathy♥*

**Advanced Functions/Precalculus**

Trigonometry Questions 1.) Find the exaqct value of tan(11π/12) 2.) A linear trig equation involving cosx has a solution of π/6. Name three other possible solutions 3) Solve 10cosx=-7 where 0≤x≤2π
*Wednesday, December 4, 2013 at 2:13pm by john*

**Algebra**

Graph and label the following two functions: f(x)=(x^2+7x+12)/(x+4) g(x)=(-x^2+3x+9)/(x-1) 1. Describe the domain and range for each of these functions. 2. Determine the equation(s) of any asymptotes found in the graphs of these functions, showing all work. 3. Discuss the ...
*Monday, May 2, 2011 at 11:22am by Debra*

**Advanced Functions 2**

I'm sorry for not using grouping symbols! You are correct, the exponents are (a-b) and (a-2b)
*Monday, November 1, 2010 at 10:26am by Ali*

**Advanced Functions Math **

y = 2^(-x) for negative x stretch up by 5 y = 5 * 2^(-x) go five right y = 5 *2^(-x-1) y = -5 + 5 * 2^-(x+1)
*Saturday, January 29, 2011 at 3:01pm by Damon*

**Advanced Functions**

Oh wow, we got teh same answer reiny cool
*Tuesday, November 19, 2013 at 8:49pm by Sam*

**7th grade advanced math**

Not off the top of my head, I don't. I'm in 7th grade advanced math and we get to use calculators. Can you use a calculator? If so, you can enter this. I have a scientific calculator, it's really nice to have aroud for probblems like that!
*Wednesday, September 10, 2008 at 3:44pm by Cecilia*

**advanced functions**

Find an equation with the given form in each case below. y=sin through(Ï/2, 0)
*Monday, January 21, 2008 at 9:05pm by Mel*

**advanced functions**

I would take the first derivative, and make it >0 and solve for the intervals.
*Sunday, October 25, 2009 at 9:27pm by bobpursley*

**Advanced Functions math**

The original question was what i needed to solve, but with the way i changed it, is it correct?
*Monday, January 18, 2010 at 9:58pm by Mai*

**Advanced Functions math**

My answer, if substituted into the second version of the equation, satisfies it.
*Monday, January 18, 2010 at 9:58pm by Reiny*

**advanced functions**

Solve the inequality 12x^3 + 8x^2 <= 3x + 2. Justify your answer.
*Sunday, October 20, 2013 at 8:57am by Rinchan*

**advanced functions**

Remember your algebra I? Subtract 980 from both sides. You want to have f(x) = 0 to solve for x.
*Thursday, February 20, 2014 at 5:13pm by Steve*

**science**

Are multi cellular organisma more advanced that unicellular organisma. Why or why not Mutlicellular organisms have cells that have specialized in various functions. Would you call that more advanced? Since this is not my area of expertise, I searched Google under the key words...
*Wednesday, October 4, 2006 at 11:16am by sharon*

**Advanced Functions**

Identify the point of intersection of these two curves: P(t)=300(1.05)^t F(t)=1000(0.92)^t
*Monday, January 4, 2010 at 4:17pm by Anonymous*

**Advanced functions/precalculus**

1. Given f(x)=x^2 and g(x)=x+2, determine in standard form: a) g(f(x)) b) when f(g(x))=g(f(x)) 2. If f = {(-10, 1), (-1, -1), (10, 0), (11, 7)} and g = {(-1, -1), (0, 10), (1, -10), (7, 11)} for how many values of x is f x g defined? Explain 3. Given f(x) = -2x + 3 and g(x) = ...
*Wednesday, January 15, 2014 at 2:24am by Diane*

**Math**

The beginning tennis class has twice as many students as the advanced class. The intermediate class has three more students than the advanced class. How many students are in the advanced class if the total enrollment for the three tennis classes is 39? A. 10 B. 15 C. 9 D. 12 ...
*Friday, March 22, 2013 at 2:00pm by Amy*

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