Tuesday
October 21, 2014

Posts by Rudy


Total # Posts: 52

spanish
Each of the Spanish sentences below is incorrect in either grammar or meaning. Rewrite each sentence correctly. 1. El rey que canta está tocando el tambor. The king that used to sing is playing the drum. 2. Él y ella está tomando jugo. He and she are ...
July 15, 2014

Statistics
mode
December 25, 2013

accounting
Pattillo Industries makes a product that sells for $25 a unit. The product has a $5 per unit variable cost and total fixed costs of $9,000. At budgeted sales of 1,000 units, the margin of safety percentage is 45%, 55%, 64%, none of these
November 14, 2013

trigo math
7. Prove that tan B sin B + cos B = sec B. 11. Prove that tanλ cos^2λ +sin^2λ/sinλ = cos λ + sin λ. 12. Prove that 1+tanθ/1+tanθ = sec^2θ+2tanθ/ 1-tan^2θ. 21. Prove that sin^2w-cos^2w/ tan w sin w...
December 13, 2012

Calculus
Given the function y=(x^2-5/x+3), answer the following questions. a) Find dy/dx. Simplify your answer b) Find the coordinates of any points on the graph of y where the tangent line is horizontal. Show your work. c) Are there any points on the graph of y where the tangent line ...
December 5, 2012

Calculus
the slope of the line tangent to the curve y=(tanx/cosx) at x=(pi/3) is? a)-8 b)2√3 c)3√2 d)8 e)14
December 5, 2012

Calculus
Use n = 6 subdivisions and left endpoints to estimate the area under the graph of f(x) = 2x + 1 between x = 0 and x = 3.
December 5, 2012

Calculus
Use n = 3 subdivisions and left endpoints to estimate the area under the graph of f(x) = 3x 2 + 1 between x = 0 and x = 1.
December 5, 2012

Calculus
Set up a Riemann sum to estimate the area under the graph of f(x) = 5x 2 + 2 between x = 0 and x = 1 using 3 subdivisions and left endpoints. Draw the graph and the 3 rectangles
December 5, 2012

Calculus
1. Determine whether Rolle's Theorem applied to the function f(x)=((x-6)(x+4))/(x+7)^2 on the closed interval[-4,6]. If Rolle's Theorem can be applied, find all numbers of c in the open interval (-4,6) such that f'(c)=0. 2. Determine whether the Mean Value Theorem ...
October 31, 2012

Calculus
1. Find all relative extrema of the function f(x)=x^(6/7)-3. Use the Second Derivative Test where applicable. 2. Find all relative extrema of the function f(x)=2x^4-16x^3+4. Use the Second Derivative Test where applicable.
October 30, 2012

Calculus
1. For the function f(x)=4x^3-30x^2+4: a) Find the critical numbers of f(if any); b) Find the open intervals where the function is increasing or decreasing; and c) Apply the First Derivative Test to identify all relative extrema 2. For the function f(x)=(x-1)^(8/11) a) Find ...
October 30, 2012

Calculus
Thank youu(:
October 29, 2012

Calculus
If the line 3x-4y=0 is tangent in the first quadrant to the curve y=x^3+k, then k is a: 1/2 b: 1/4 c: 0 d: -1/8 e: -1/2
October 29, 2012

Calculus
Thanks ^.^
October 29, 2012

Calculus
1. For a differentiable function f, f' be the funcyion defined by f'(x) lim h->0 =f(x+h)-f(x-h)/(h) a: Determine f'(x) for f(x)=x b: Determine f'(x) for f(x)=x^2
October 29, 2012

Calculus
A particle moves along a horizontal line so that at any time t its position is given by x(t)=cost-t. Time is measured in seconds and x is measured in meters. a.) Find the velocity as a function t. Use your answer to determine the velocity of the particle when t=pi/6 seconds. ...
October 14, 2012

Calculus
Thank You so much for all the answers(:
October 8, 2012

Calculus
Find the second derivative of the function. g(x)=x^6secx
October 8, 2012

Calculus
Write an equation of the line that passes through the point (i) parallel to the given value, and (ii) perpendicular to the given line. Point(7,1) Line(-5x-5y=90)
October 8, 2012

Calculus
Find the slope of the graph of the function at the given value. h(z)=z^(2/7)-z^(5/8) when z=7
October 8, 2012

MATH
√(x+5)-√(x-3)=2
April 4, 2012

math
Find the present value of $30000 due 14 years later at 7.8%, compounded continuously.
March 22, 2012

physics
Physics force-a bat hits a baseball and applies a force of 450 newtons to the ball.how much force does the ball exert on the bat
November 17, 2011

calculus
Find the equation of the line that is tangent to the graph of: x^2cosy +5y^2=(1/4)x^2 , at the point (2π,π)
October 15, 2011

American Gov
How does Congress affect the agenda of the President?
February 25, 2011

College Algebra
Solve the system: 4x-3y=-3 y=6x-13 What is the value of y in the function?
December 11, 2010

3rd grade
Look at these number . What does the digit 2 mean in each number 2 23 247
October 7, 2010

Fiance
If a father wants to have $100,000 to send a newborn child to college, how much must he invest annually for 18 years if he earns 9 percent on his funds?
August 20, 2010

math
1.8 and 3.5. I just used guess and check. I knew that the numbers had to be under 5.3. Also, the number in the tenths place had to add up to 13 or 3, so 1.8 and 3.5.
December 13, 2009

6th grade
1.8 and 3.5
December 13, 2009

English
"Continuous transformation of the universe" could basically be written as "the passing of time." In general the phrase means "humans, as well as towns, die and are born as time passes."
December 13, 2009

Physics
Determine the tension in the string at the top and bottom of its path when a 0.3 kg yo-yo is whirled in a vertical circle of radius 0.5 m at 2.5 m/s. I'm sure I can solve this, I just can't find the equation for tension. The only equation I could find in my book is if ...
December 13, 2009

chemistry
why is iodine dissolved in alcohol and used as tincture of iodine on wounds?
October 3, 2009

DQ
Determine which factors may explain that most of the higher per-pupil expenditures are found in the Northeastern and upper Midwest states and the lower per-pupil expenditures are found in the South and West. In your opinion, what needs to happen to create a balance in school ...
November 18, 2008

calculus
(f o g)(3x^2) << question ...f=4x-10 g=2x^2
September 1, 2008

MATH URGENT
f(x)=12x^5+45x^4–80x^3+2 the question asks to find the inflection points but i dont seem to understand how to find this even by taking the second derivative.
May 29, 2008

math
f(x)=12x^5+45x^4–80x^3+2 the question asks to find the inflection points but i dont seem to understand how to find this even by taking the second derivative.
May 29, 2008

chem
based on the balanced eq: c6h12+9O2->6CO2+6H2O calculate the molecules of CO2 formed when 174 molecules of H20 form. im not exactly sure how to start this problem.
May 16, 2008

math
Sketch f (x) = x + cos x on [-2pie,2pie ]. Find any local extrema, inflection points, or asymptotes. And find the absolute maximum and absolute minimum values of f on the given interval. i cant seem to figure out how to solve this
May 15, 2008

calc
how do u get the - 8x over one?
May 8, 2008

math
lim-> 0 sin 3x/7x i keep getting 0 even using the quotient rule but htis is not the answer
May 8, 2008

math
im trying to take the derivative of this problem and plug in seven but im not getting the answer. s=t3–2t2–6t t> or equal to 0 where s is measured in meters and t in seconds. When does the particle reach a velocity of 7 m/s?
April 27, 2008

math
lim x-> -infinity 1/(sqaure root of 4/x^2 plus one) i dont understan why the answer is 1.
April 19, 2008

Algebra
the way u did it, if I try to do the others, Aren't they all true though?
February 17, 2008

math
i am not sure how the multiples of 15 come into this problem?
January 24, 2008

math
i am wondering if the following answer to my math problem is correct f(x)=x^3-4x-2 [2,3] We are doing limits and are suppose to use the Intermediate value thereom the answer i put was f(2)<o and f(3)>0
January 24, 2008

math
i am wondering if the following answer to my math problem is correct f(x)=x^3-4x-2 [2,3] the answer i put was f(20<o and f(3)>0
January 24, 2008

math
i am having trouble iwth the following math problem: lim x->oo -x/squre root 4+xsquare I am not sure if i multiple the denominator with the numerator?
January 24, 2008

SCIENCE
I NEED TO KNOW THE SYNONYMS OF THE FOLOWING WORDS. PROPERTY SOUND BOILING POIMT MELTING POINT MIXTURE SOLUTION
October 3, 2007

math
x+a=b/3x x= ? i understand that u bring the x to one side but the answer given is 3a/b-3. I do not understand how to get this answer plz help to get the answer given, your equation must have been x+a = (b/3)*x multiply each term by 3: 3x + 3a = bx 3a = bx - 3x 3a = x(b-3) then...
July 15, 2007

SYNONYMS HELP
PROPETY SOUND BOILING POINT MELTING POINT MIXTURE SOLUTION
August 23, 2005

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