
algebra
find F(2) for the polynomial shown below. F(x)=(x^4)(2x^3)+(3x^2)(10x+3'0 Substitute 2 for x in the polynomial to work this out. Be sure to watch your signs! I hope this will help.
asked by bailey on January 17, 2007 
calc
y=ln(x+1) +ln(x1) find dy/dx I have trouble with this problem since i'm not that familar with finding the derivative when they involve ln. Please show me how to solve this problem. I should have gotten 2x/(x^21)
asked by Brian on January 17, 2007 
Math
Find the value of k such that the quadritic poly 3x square plus 2 kx plus x minus k minus 5 has the sum of zeroes as half of there product?
asked by Dwithun Basumatary on June 26, 2013 
physics
A force of 240 lb. is resolved into forces at right angles to one another, the angle of F2 being 56 degrees from the 350 lb. force. Find F2.
asked by dcw on March 18, 2010 
maths
a student wals 5km due north from O and then 8km due east find his bearing from O
asked by tope on March 14, 2017 
college algebra
The sum of two positive numbers is 34. When the smaller number is subtracted from twice the larger, the result is 26. Find the two numbers,
asked by marytidwell29 on January 22, 2017 
geometry
A train in the mountains rises 10ft for every 250ft it moves along the track. Find the elevation of the track.
asked by joshua on March 25, 2015 
Physics
A sprinter runs at a speed of 3.00 m/s on a circular track that has a radius of 40.00 m. Find the centripetal acceleration of the sprinter.
asked by Willie on September 21, 2009 
math
A pair of hiking boots is marked 3/8 off the regular price. If the discount is $16.95, find the sale price.
asked by Queen on November 8, 2017 
Programming & Algorithms
Consider the algebraic expression E=(2x+y) (5ab)^3. Draw the tree T which correspond to the expression E and find the preorder traversal of T.
asked by Scent on November 11, 2009 
physics
IP A jogger runs with a speed of 3.10{\rm m/s} in a direction 25.0{^\circ} above the x axis. Find the x and y components of the jogger's velocity.
asked by Riley on September 11, 2012 
Geometry
X is a point 7cm from the center of circle O with radius 9 cm. AXB is a chord of the circle such that AX= 2 XB. Find the length of AB.
asked by Zack on January 29, 2016 
science
a boy is going from one place to another he goes 100m north and then 70 m east find the displacement of the boy from his starting point
asked by paramartha on May 10, 2017 
Chemistry
Which gives off more heat when burning CH4 or CH3OH and why? I think it would be CH3OH, but I am not sure and cannot find any information on the reason why. Does any one have any suggestion? Am I even right to begin with? Thanks.
asked by Sara on February 16, 2008 
Math 30 Trig
How do I find the xintercept of the graph of y=3sin 2x? Could you explain the steps to put this into my graphing calculator to get the graph. Please and thanks
asked by Rae on April 25, 2010 
Calculus
A particle is moving along the xaxis so that its position at t ≥ 0 is given by s(t)=(t)In(2t). Find the acceleration of the particle when the velocity is first zero. a)2e^2 b)2e c)e d)None of these Any help is greatly appreciated
asked by Jonathan on November 29, 2016 
physics
The position of a 2.75×10^5 N training helicopter under test is given by r =(0.020m/s 3 )t^3 i ^ +(2.2m/s)tj ^ −(0.060m/s 2 )t^2 k ^. find the net force of the helicopter at t=5.0s
asked by jasmine on October 4, 2013 
college algebra, Please help!!
find a bound on the real zeros of the polynomial. f(x)=x^4+2x^38x7 every real zero of f lies between ? and ? *pleasae show all work*
asked by ladybug on November 18, 2012 
SIGA
A slope measurement 858.25m and a slope angle of 4 degress.Find the horizontal distance
asked by SHEM on April 15, 2013 
Math7
Find the cost of the following situation. Dress Sale: Regular:$160 Now:$112 What % is given on the price of the dress?
asked by Christine on March 18, 2010 
Math
Given the following question: 3e^(2*t)*sin(pi*t pi/3)] How do I find a) period b) frequency c) time (phase) shift d) time constant
asked by Steve on January 12, 2013 
matt/116
two angles are complementary. The sum of the measure of the first and the onefourth of the second angle is 62.25 degrees find the measures of the angle.
asked by tay on April 11, 2010 
chemistry
Find the pH of a buffer that consists of 1.6 M sodium phenolate (C6H5ONa) and 1.0M phenol (C6H5OH). (pKa of phenol=10.00)
asked by Kate on November 29, 2010 
year 7 ict
please could someone tell what a screenshot is. i need to explain the different sections but ive got no idea where to start. ive looked myself but can`t find anything to help. thanks to anyone who helps me.
asked by toby on February 13, 2008 
advanced math
I'm not sure how to find the line of best fit. I have two equations, linear and quadratic. I graphed them on my calculator, but now I don't know which one is the best fit. Can I tell by the r^2?
asked by Irene on March 17, 2008 
Math
The terminal side of an angle alpha (in standard position) contains the point (3,4). Find sec alpha.
asked by Anonymous on May 12, 2013 
SOCIAL STUDIES
I need to know the animal and plant life of France. I've tried finding sites but I can't. Please help me find helpful answers or
asked by Rakhi on June 2, 2010 
math
find the discount on proceeds on a 3,270 face value note for 6 months if the discount rate is 9.5 percent
asked by Anonymous on May 20, 2015 
Social Studies
Where can I find a simple description of the difference between democratic party vs. republican party? I am 10 and just learning about politics.
asked by CK on December 16, 2007 
Math
A chord subtends an angle of 68° at the centre of a circle of radius 200mm. Find the length of the chord.
asked by Michelle Kulno on May 18, 2015 
AP Calculus
I need to find the integral: int:(x^2+2x+3)/(x^3+3x+9) dx I think I am supposed to use the rule: int:1/u du=lnu+C But I don't know what to do first. Thanks for your help! :) Oh and the answer the back of my book gives is (1/3)lnx^3+3x^2+9x+C
asked by Corin on October 7, 2007 
Literacy
I'm doing a project about the Holocaust and we have a special person that was in the Holocaust that we have to research. Her name is Hetty d’Ancona. Can you help me find some facts about her?
asked by Anonymous on April 8, 2014 
alg2/trig
To the nearest minute, what is the approximate size of the smallest angle of a triangle whose sides are 4,5, and 8? How do I find the angle?
asked by Judy on January 28, 2010 
Algebra
Is x^2+xk Factorable? I have spent way too much time trying to find to factor this triominal and starting to belive it is not factorable. Is this correct?
asked by Russell on August 22, 2007 
math
A box contains 12 lightbulbs. Find the number of ordered N samples of size 3: (a) with replacement (b) without replacement Also, please do Not solve.
asked by dddd47906 on April 9, 2014 
geometry
the diagonals of a rectangle are 12 inches long and intersect at an angle of 60 degrees. find the perimeter of the rectangle. please help :)
asked by Enoch on January 11, 2011 
Probability
Two dice are rolled. Find the odds that the score on the dice is either 7 or 12. A) 7 : 29 B) 1 : 5 C) 1 : 1 D) 19 : 17 I am so lost it isn't funny. I do not know how to figure this out.
asked by BWB on May 15, 2010 
Maths, Biology, Business Economics
Hi I want to study Psychotherapy and be a Dance therapist but cannot find any courses for Dance Therapy in South Africa.
asked by Jessica on April 7, 2014 
chemistry
I did a lab about melting point. It is asking me for the purity of the compounds? How do I find it? Do I use melting points or percent yield?
asked by Yoo on October 5, 2010 
trig
find the period and amplitude of each sine function.then sketch each function from 0 to 2pi: 1)y=3.5 sin 5theta
asked by Anonymous on April 7, 2011 
Math
In the figure, > BD is the angle bisector of
asked by Matt on January 27, 2016 
math
The sum of two consecutive integers is –49. Write an equation that models this situation and find the values of the two integers.
asked by brittany on March 19, 2015 
Statics
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Class Frequency 6163 19 6466 17 6769 5 7072 10 7375 12
asked by kesha on June 21, 2012 
Chemistry acids/bases
Find the concentration of OH of a solution of 45.0mL of 0.0921 M Ba(OH)2 diluted with enough water to make 350.0 mL of solution.
asked by Jessica on February 12, 2014 
Math
The average snowfall 2 to 5. If 44 inches fell in January find the predicted total snowfall for the winter
asked by Maurice on November 28, 2016 
physics
Two positive point charges of 15 into 10^10 C and 13 into 10^10 C are placed 12cm apart.Find the work done in bringing the two charges 4cm closer ?
asked by anonymous on August 29, 2014 
Math
Given the following question: 3e^(2*t)*sin(pi*t + pi/3)] How do I find a) period b) frequency c) time (phase) shift d) time constant
asked by Jen on January 12, 2013 
math
a cone has a circular base of radius 16cm and a volume of 420cm2.find the height of the cone.
asked by abdullah on October 5, 2016 
Calculus
Find all points on the graph of the function f(x) = 2 sin(x) + (sin(x))^2 at which the tangent line is horizontal. Consider the domain x = [0,2π).
asked by Anonymous on June 22, 2012 
math
A student says that the solution of 375 = x – 28 is 347. Explain the student’s error and find the correct answer
asked by manny on April 12, 2013 
Help Polynomial
A polynomial P(x) has remainder R x +S on division by (xa) (xb). If a is not equal to b, express the constants R and S in terms of a, b, P(a), P(b). Find the remainder when P(x) is divided by (xa)^2.
asked by youngguru on March 17, 2017 
Physics
A 22 kg crate is moving horizontally on the floor at a constant speed. Find the normal force on the crate.
asked by MCPHS on June 13, 2016 
math
You roll two (6sided) number cubes, a red one and a white one. Find each probability: a. P (5,2) b. P (5, odd #) c. P (3,3) d. P (even #, odd #) e. P (4,4) f. P (less than five, 6)
asked by Anonymous on April 17, 2012 
Calculus
Find all points on the graph of the function f(x) = 2 sin(x) + (sin(x))^2 at which the tangent line is horizontal. Consider the domain x = [0,2π). Please help!
asked by Anonymous on June 22, 2012 
Math
How do i write this equation in standard form and how do i find the center and radius of the circle? x squared + y squared + 2x  2y  2 = 0
asked by Jon on April 14, 2009 
math
Find the slopeintercept equation of the line with the following properties. Perpendicular to the line 9x8y=96; containing the point (8,8) Can anyone please explain and help me please.
asked by ladybug on September 10, 2012 
Algebra
Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f. Degree 5; zeros: 9, 3+5i, 9i
asked by Stone on November 12, 2013 
Math
A plane has parametric equations x = 3 + 4t  s y = 1 + 2t z = 1  5t + 4s So we have to find the direction vector for the plane and I'm thinking it's (3,1,1). Can somebody please double check?
asked by Anonymous on January 18, 2019 
Physics
Can you tell me if there is a formula to find out the wind pressure on the sides of a roof in different areas of the roof with different pitches. Thanks Nick
asked by nick on October 8, 2007 
calculus
Find the length and width of a rectangle that has the given area and a minimum perimeter. Area: 8A square centimeters
asked by liz on October 26, 2014 
English
Can someone please give me sites to find out the history of the Winter Olympic games. I only need a brief history about it in point form. Thanks :)
asked by Sara on February 16, 2010 
math
Which equation could be used to find the perimeter of an isosceles triangle, with two sides 13 cm long, a base 10 cm long and a height of 12 cm? A. P = (10 × 12) ÷ 2 B. P = 2 × 13 + 10 C. P = 13 + 10 + 12 D. P = 2 × 10 + 13
asked by Allison on September 10, 2012 
Chemistry acids/bases
Find the concentration of OH of a solution of 45.0mL of 0.0921 M Ba(OH)2 diluted with enough water to make 350.0 mL of solution.
asked by Jessica on February 12, 2014 
geometry
An isosceles trapezoid has base angles equal to 45 and bases of lengths 6 and 12. Find the area of the trapezoid.
asked by john on March 8, 2011 
Math
How do i write this equation in standard form and how do i find the center and radius of the circle? x squared + y squared + 2x  2y  2 = 0
asked by Jon on April 14, 2009 
Calculus
Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.
asked by Karku on April 3, 2011 
Physics
A 4.3 kg bag of groceries is in equilibrium on an incline of angle θ = 30°. Find the magnitude of the normal force on the bag.
asked by Josh Templin on January 12, 2013 
math
a cone has a circular base of radius 16cm and a volume of 420cm2.find the height of the cone.
asked by Anonymous on October 5, 2016 
precalculus
use the information to solve the triangle. If two solutions exist, find both solutions can you show how to work this out? A=150°,b=4.8,a=9.4
asked by Anonymous on November 27, 2016 
calculus
Find the area of the region bounded by the parabola y=x^2 , the tangent line to this parabola at (10, 100), and the xaxis.
asked by Anonymous on April 23, 2011 
math
the position vectors of the point A,B & C respect to O are a=3i2j+4k, b=i+3j4k, c=2i+5j3k. Find a)the angle between a+b and ab b)lamdar if vector a is perpendicular to b+lamdar k.
asked by yuni on December 24, 2011 
geometry
what are the step to find the volume of an aquarium in cubic feet when its height is 25 1/2 inches and its radius 21 inches?
asked by jill on November 30, 2016 
Algebra
A athlete runs 40 ft in 5 minutes. i have to find the rate help please per min... 40ft/5min= 8ft/min
asked by MEL on August 21, 2007 
Calculus
I want to know how to find the local linearization. So in this problem I'm doing, I'm given the f(x) equation and it says "about x = 0" I'm suppose to approximate value of f(0.3) Are there specific steps I need to take to go about this problem?
asked by Joseph on October 10, 2016 
History
I'm trying to find out the difference between Masons and AntiMasons like in the 1830s. But all the info is about brick layers. How else could I look this up to get the right Mason?
asked by Mike on April 9, 2014 
physics
An MP3 player operates with a voltage of 3.7 V, and is using 0.14 W of power. Find the current being supplied by the player's battery.
asked by John on February 28, 2013 
Math
Kirk has 25 marbles and 14 seashells. What information is needed to find the number of marbles that are NOT cat's eyes?
asked by Jackie on April 16, 2012 
math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.9 * 10^2 µm. Find this earthquake's magnitude.
asked by Anonymous on November 12, 2013 
Math
Sum of 2 consecutive integers is 59. Write an equation that models that situation and find values of both integers
asked by John on October 1, 2013 
please help me.. physics
A 1.30 kg mass is suspended from a spring, with a spring constant of 135.0 N/m. Find the driving frequency which would cause resonance.
asked by Nina on February 12, 2014 
Math
Find all integer roots of f(x). Identify any double roots. f(x) = 3x4  16x3 + 31x2  26x + 8
asked by Taylor on July 1, 2010 
Algebra
The sum of two numbers is 74. If the larger number is subtracted from three times the smaller, the result is 42. Find the numbers.
asked by Kyla on November 2, 2017 
algebra
the sum of four consecutive integers is 72. write an equation to model this situation and find the values of the four integers
asked by lucindatamakloe on August 4, 2013 
Mary
Can someone please tell me the heat of fusion for Lauric Acid, Oxalic Acid, and Cetyl Alcohol? I've looked and can't find them anywhere! Thanks!
asked by Chemistry on January 13, 2013 
math
find two point the perpendicular bisector of line AB. verify your results by showing each point is equidistant from A and B. A(3,0) B (1,4)
asked by Emily on January 30, 2013 
Nuclear Physics
If humans produce a 10mm wavelengh, what is their frequency? Find the energy emitted from humans off of the wavelength given.
asked by Raam on December 9, 2010 
Algebra
Let L be the line passing through the point P=(1, −1, −5) with direction vector →d=[−2, −4, 3]T, and let T be the plane defined by −x+y−3z = −1. Find the point Q where L and T intersect.
asked by shana on March 19, 2017 
Physics
A proton is at the origin and an electron is at the point x = 0.41 nm, y = 0.36 nm. Find the electric force on the proton. I got 7.529 *10^11 but it wants the answer for fx and fy how do i get that?
asked by Josh on August 6, 2009 
geometry
the diagonals of a rectangle are 8 units long and intersect at a 60 degree angle. find the dimensions of the rectangle
asked by kathy on February 9, 2013 
Math
Find the value of k such that the quadritic poly 3x square plus 2 kx plus x minus k minus 5 has the sum of zeroes as half of there product?
asked by Dwithun Basumatary on June 26, 2013 
chemistry
Mole fraction of NaOH is aquous sol 0.15 Find molarity of the solution, %w/w, if the density of solution is 1.25 g/ml
asked by shivani on August 4, 2013 
Native American Literature
What were some major Native American achievements in the U.S. during the 1600s? I know that they were the first people to inhabit the Americas, but I can not find any other achievements.
asked by Ann on September 18, 2011 
Chemistry
Find the pH of a buffer that consists of 0.82 M methylamin (CH3NH2) and 0.71 M CH3NH3Cl (pKb of methylamine (CH3NH2) = 3.35.) I keep getting 3.41, but it says that it's wrong...
asked by Edward on March 3, 2013 
Calculus (repost)
Find the limit: lim {[1/(2+x)](1/2)}/x as x>0 How do you remove the complex fraction??? (or just complex fractions in general, I have trouble with them...) Thank you!
asked by Momo on February 15, 2010 
prealg URGENT
triangle ABC has coordinates. A(1,4); B(3,2); and C(4,2). Find the coordinates of the image A'B'C after a reflection over the X axis. (Show your work)
asked by KurtCornell on November 12, 2013 
Math
Color pencils are six dollars and the discount rate is 5% find the price of each product after a discount is applied
asked by Olivia on January 16, 2017 
Calculus
Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0,50), a minimum at (1.5,−4), and no critical points between these two points.
asked by Karku on April 3, 2011 
precalcalculus
use the information to solve the triangle. If two solutions exist, find both solutions. How do you work this out? 1.A=36°, B=98°, c=16 2.a=4,b=8,c=10 3.A=35°,b=8,c=12 4.A=25°,b=28,a=18 5.B=130°,c=10.1,b=5.2 6.A=150°,b=4.8,a=9.4
asked by Anonymous on November 27, 2016 
PreCalculus
The side of a rhombus is 15 centimeters long, and the length of its longer diagonal is 24.6 centimeters. Find the area.
asked by Mindy on October 4, 2010 
maths
ABC is an isosceles triangle inscribed in a circle. If AB and AC is 2.5cm and BC is 14cm find the radius of the circle
asked by Anonymous on March 21, 2015
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