Sunday

April 19, 2015

April 19, 2015

Number of results: 41

**Calculus**

What is wrong with the following reasoning??? f(x) = 2^x f'(x) = x[2^(x-1)] Although n x^(n-1) is the derivative of x^n, you cannot apply similar rules when x is the exponent and the number being raised to a power is a constant. The derivative of b^x, where b is a constant, is...
*June 13, 2007 by Raj*

**math2**

what is a ray
*February 24, 2010 by liliana2*

**math2**

how to solve 2[5a-3(4a-b)]-4[8b+5(a-2b)]
*November 20, 2012 by jasmine*

**honors math2**

-7/(21/4*3/7)
*November 4, 2013 by rian*

**math2**

Which statement is false? a ¡ô {a, b, c} ¨ª ¡ø {a, b, c} ¨ª ¡ö {a, b, c} ¨ª ¡ô {a, b, c}
*June 19, 2011 by anonymous*

**Math2**

Factor: 2xy – xz + 2wy – wz (x+w)(2y-z)
*January 30, 2007 by Margie*

**math2**

If you can please answer that question from 5:08 thanks
*February 3, 2014 by jenn B*

**math2**

What would be the greatest commmon factor to 15, 34, and 55?
*April 3, 2011 by Anonymous*

**MATH2**

what multiple does 27,8, and 6 all have in common
*November 6, 2013 by rian*

**math**

describe general rule for which fraction that have decimal forms that terminate and which have decimals that repeat and list prime factorizations for each: 1/2 , 1/3, 1/4, 1/5,1/6,1/7,1/8,1/9,1/10,1/11,1/12 how do I do these problems? I searched Google under the key words "...
*March 7, 2007 by patti help*

**MATH2**

Given f(x) = 4x 2 + 2x - 1, the simplified form of the difference quotient, [f(x+h) - f(x)]/h is, what?
*October 5, 2008 by Casey*

**Math2**

Given f, a derivable function and y = f (x)^3 + 40√(f(x)+12) . Knowing that f(4) = -4 and that dy/dx|x=4 = 14 , calculate f’(4)
*March 23, 2011 by Ralph*

**Math2**

Directions:Solve and graph the inequalities using words. Problems: 4.-3x>-6 or x-5<=2 5.x+2>2x-1 or -6>-2x-2
*April 18, 2007 by margie*

**math2**

Tell how to use compatible numbers to compute each of the following. (a) 125 + 3 + 40 + 37 + 75 + 60 (b) 4 • 4 • 50 • 25
*August 17, 2009 by kimberly*

**Math2(PLease Help)**

Directions:Solve the rational expression. Problem: 1/(x+3)+1/(x-3)=1/(x^2-9) get (x+3), (x-3), and (x^2-9) to the same denominator...
*March 27, 2007 by margie*

**More Math2(MathGuru)**

5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. a. y = 3x - 6 b. 6y = -x + 2 *What do I do here.?
*February 6, 2007 by Margie*

**,Math2**

calculate the cost per barrel if 4000 barrels were extracted from the ground C=9x2-144x+480000 this is a quadratic relation the 2 is a exoponet
*December 18, 2012 by t*

**heeelp math2**

Find the number of polynomials f(x) that satisfy all of the following conditions: f(x) is a monic polynomial, f(x) has degree 1000, f(x) has integer coefficients, f(x) divides f(2x^3+x)
*July 10, 2013 by lin*

**math2 calc**

Let f(x) be the function 11x2−9x+7. Then the quotient f(6+h)−f(6)h can be simplified to ah+b for: a= and b=
*September 28, 2011 by Alison*

**math2(count iblis)**

-y^3(2x^2y-4xy^2)=-2x^2y^4+4xy^6 *is this correct.? No, in the last term, the y should be to the fifth power (3+2)
*February 4, 2007 by Margie*

**Math2**

We pour water into a conical container of a radius of 10 cm with a height of 36cm at a rate of 70 cm^3/s. At what velocity does the water level increase when it reaches 12 cm? dh/dt=?
*April 20, 2011 by Ralph*

**Math2**

We pour water into a conical container of a radius of 10 cm with a height of 36cm at a rate of 70 cm^3/s. At what velocity does the water level increase when it reaches 12 cm? dh/dt=?
*April 20, 2011 by Ralph*

**math2**

an open right circular cylindrical tank of given volume stands with vertical axis. the material of its bottom costs twice as much per unit area as that for the sides. find the most economical proportion?
*February 14, 2011 by gen*

**math2**

Solve the problem. You traveled 189 miles on 7 gallons of gasoline. At this rate, how many gallons of gasoline would you need to travel 297 miles?
*March 11, 2010 by pat*

**Math2**

A "quick picture" is an estimate than? 5 x 2.7 ..... 5 x 3= 15 Its been a long time since elementary school and I do not remember "quick picture" The question was How can you use a "quick picture" to find 5 x 2.7? the answer is 13.5.......an estimate would be 15
*December 5, 2013 by Donald*

**calculus help please**

dy/dx = 2y^2 Integrating...y=2/3 y^3 + C put 1,-1 into the equation, and solve for C. Then find the y for x=2 if y= a^uhttp://math2.org/math/integrals/tableof.htm see exponential functions. dy/dx=2y^2 and if y=-1 when x=1, then when x=2, y=? how do i get x in the equation. do ...
*December 10, 2006 by bobpursley*

**math2**

Dan had to complete the remaining 1/3 of his science project this week. On Monday, he completed 4/5 of the work he had left to do. What part of the entire project did Dan complete on Monday? Can you guide me on how to figure it out?
*November 10, 2011 by Maria*

**Math2(Please Help)**

4x 8 ___ - ______ x+2 x-1 *Simplify The Expression I'm going to assume your problem is this: 4x/(x+2) - 8/(x-1) Use a common denominator since the denominators are not the same. Common denominator is: (x+2)(x-1) Rewriting the problem, we have: 4x(x-1)/(x+2)(x-1) - 8(x+2)/(x+2...
*March 3, 2007 by Margie*

**Math2(Please help)**

Directions:Solve and explain the inequality using words.Tell which wa shading goes. Problem: x+3=>2x+1 and -4x<-8 -4x<-8 The first inequality can be rewritten x <= 2 In words, x is less than or equal to 2. You can get that by subtracting x+1 from both sides. The ...
*April 10, 2007 by margie*

**Math2**

if arc AC=140 degrees, what is angle ABC? if angle ABC=28 degrees, what is arc AC?
*December 5, 2010 by Ian*

**Math2**

The universal law of gravitation determines the amount of force exerted by a constant mass (M) on another constant mass (m), separated by a distance (r), is given by the expression F = ( -GmM )/r^2 a) What mathematical expression characterises the instant rate of change of the...
*October 18, 2011 by Raf*

**math**

What is a better way to remember your timed tables? Is there a game or a song you can go by or something? These websites have games and many ways to practice the times tables. http://www.woodlands-junior.kent.sch.uk/maths/timestable/index.html http://www.bbc.co.uk/skillswise/...
*August 5, 2007 by Mack*

**math2**

5y^8-125 *you have to factor completley easy. Take out the five: 5(y^8-25) Now, isnt y8 the same as y4 )2 ? That is a square, so you have that y4 squared minus another perfect square? That factor as the difference of two squares. After doing that, you may have another ...
*January 28, 2007 by margie*

**Math2[Please Check Again]**

Problem: a^2-9 a^2-3a ----- * -------- a^2 a^2+a-12 What I Got: 3-3a ---- a-4 *Please Check My Work.* Nope. factor the denominator to a^2(a+4)(a-3) The last factor divides out in the numerattor (second term factors to a(a-3). The a in the numerator reduces the denominaor a^2 ...
*February 24, 2007 by Margie*

**MATH! Urgent**

umm suppose a parabola has a vertex at (0,2) and points (1,1) how would I derive the equation and focus, i've been trying to understand this for so long, I can't get it. Does this parabola have the equation (y-2)^2 = x and a focus of 1/4?? Is that correct?? I searched Google ...
*November 2, 2006 by sally*

**math2**

If you have a line plot with a bag of nuts(in pounds) and there is 1/8 on the graph with 8 x marks on of it bags, 1/4 with 4 x on top of it bags, and 1/2 with 4 x marks on top of it bags. The question goes as follow, Amy filled bags with nuts. She weighed the bags and made a ...
*February 3, 2014 by jenn B*

**Please Check (Math2)**

a^2-9 a^2-3a ----- * ------- a^2 a^2+a-12 *I got: 3-3a/4 I dont think so. factor the a^2-9, and the second numerator to a(a-3) Then the denominator factored is a^2*(a+4)(a-3) So wait... don't I have to first have to take out the repeated thingys.? I dont know what repeated ...
*February 21, 2007 by Margie*

**homework help!!!**

Can you explain in more detail WHY ....if you live in Atlanta and your grandparents live in Seattle and they go to bed at 10 pm.. 7pm Atlanta time would be the latest they would call.... I think that's wrong. Since the sun rises in the east, the east coast, including Atlanta, ...
*August 17, 2007 by deanna*

**Multiplication**

What is the best way to teach my 8 year old her multiplication tables. You'll probably get lots of answers and opinions! I'll tell you what worked with my brother and then with my grandsons -- repetition, repetition, and more repetition -- both verbally and in writing and with...
*June 15, 2006 by Patricia*

**please check my math2**

Two bodies hang on a string 2.1m long. The two bodies have a mass of 3.75kg and 2.4kg respectively. If the 3.75kg mass is raised to a height of 0.545m and released, and if upon impact the mass adhere. Mass1 = 3.75 kg Mass2 = 2.4 kg String length = 2.1 m M1 raised = 0.545m a) ...
*March 21, 2009 by Henri*

**math2**

Mary is moving and wants photos to remember her six friends. If pictures are taken so there is a shot of every possible pair of friends- including Mary, how many pictures will be take? Would one roll of 24 exposures be enough? 27 Mary is moving and wants photos to remember her...
*January 24, 2007 by Preston*

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