
Calculus
Find all points on the graph of the function f(x) = 2 cos x + cos^2 x at which the tangent line is horizontal. (Use n as your arbitrary integer.) smaller yvalue (x,y)= larger yvalue (x,y)=
asked by Tim on March 9, 2014 
Math (PreCal)
There is exactly one triangle the length of whose sides are integers in arithmetic progression and whose area is 156 square units. Find the perimeter of this triangle.
asked by Dan on February 11, 2013 
Math
The cost of Mrs.Taylors purchases was $45.87 She had a coupon for 20% off the total. Find, to the nearest cent, the amount of money she will save if she uses the coupon?
asked by Hannah on February 10, 2011 
chemistry
What is the density of propene gas measured at 2.5 atm and 47C? I know that I use the combine gas law, but I don't know how to find "n" in this particular problem. Please help ASAP!
asked by Henry on November 30, 2011 
calculus 2
Consider the solid obtained by rotating the region bounded by the given curves about the line x = 3. y = x^2 , x = y^2 Find the volume V of this solid. I keep finding the wrong answer.
asked by angel on February 16, 2010 
Calculus
1.) Find the equation of the line that is tangent to the graph of yy^3 at x=1. 2.) lim x>0 ((sin x*cos 2x)/3x) 3.) Show, using the squeeze theorem, that the limit of Xe^(sin 1/x) as x>0 is 0.
asked by Amber on January 25, 2015 
Math
Factor the following polynomials completely. How do you??? First question? 8x4 Find the equation of the line that is perpendicular to 2xy=3, and passes through the point (4,1) The answer is 1/2x1 ///how do you work it out to get the answer???
asked by Tommy W on December 12, 2010 
algebra
Including a 9% sales tax, an inn charges $127.53 per night. Find the inns nightly cost before tax is added
asked by Rachel on January 14, 2012 
Math
Rectangular Prism: Length: 41 ft Width: 32 ft Height: 49 ft 1. Find the surface area for the given prism. 7,154 ft^2 2,624 ft^2 9,778 ft^2 8,432 ft^2. Help please because I'm not sure.
asked by Amber on April 5, 2016 
Cal 1
Use Newton's method with the specified initial approximation x1 to find x3, the third approximation to the root of the given equation. (Round your answer to four decimal places.) 1/3x^3 + 1/2x^2 + 1 = 0, x_1 = −3
asked by Dee on March 7, 2013 
Calculus
I have no idea how to do this, can someone please help? Consider the graphs below, which give m(x) in the left graph, in black, and n(x) in the right graph, in blue. Both functions have a sharp corner at x=50. Let h(x)=n(m(x)). Find a point x where
asked by Michael on February 10, 2018 
Mathematics
Find the difference between compound interest payable annually and half annually for a amount Rs 14000 at the rate 12% per annum for 2 years
asked by Bhawana on June 19, 2016 
Chemistry
Find the molar enthalpy of vaporization for a substance, given that 3.21 mol of the subtance absorbs 28.4 kJ of energy as heat when the substance changes from a liquid to a gas.
asked by Analise on February 13, 2008 
language arts
i have to use the word fretish in a sentence as a noun, verb, and an adjective and as a different part of speech each time. i've looked everywhere and i cant even find what fretish means. PLEASE HELP!!!
asked by Sage on October 19, 2010 
math
Jungle Warehouse signed a 9month simple discount note with a face value of $5,600. Find the proceeds if the discount rate is 13%
asked by mac on April 8, 2017 
Physics, ray optics
An astronomical telescope of magnifying power 7, consist of two thin lenses 40 cm apart in normal adjustment. Find the focal length of the lenses.
asked by Bishmay on October 14, 2016 
math
Find the area of the shaded region. View the graph and image at: postimg.o rg/image/dg4kt89v1/ Please help me explain this one. I know the ans to this one but can not work out.
asked by math on November 23, 2013 
algebra 1
I'm doing a powerpoint for math, and one of the word problems involve arithmetic sequences. Can someone just type the "a sub n" and "a sub 1" "a sub 7" so that I can copy and paste onto my powerpoint? Or can you sow me how to find it? Thanks!
asked by amanda on May 19, 2009 
physics
Find the velocity in m/s of a dropped ball after 2.4 seconds in the air. Assume its initial velocity is zero. Round answer to one decimal place.
asked by Samanthaa on September 13, 2011 
math
If 3 different digits represent 3 different letters and each time a letter appears it represents the same digit how do i find the sum of the 3 digits represented? p is not zero. pm pm pm +pm ____ ap
asked by Janice on January 20, 2010 
Astronomy help
If a comet has a perihelion distance of 1.AU and an orbital period of 125 Earth years.. What is the comet's aphelion? Cannot seem to find the correct calculation
asked by Liz on December 13, 2007 
Physics
A stone is dropped from the peak of a hill. It covers a distance of 45 meters in ther last two seconds of its motion. Find the height of the peak?
asked by Anonymous on April 18, 2015 
Calculus
I have no idea how to do this, can someone please help? Consider the graphs below, which give m(x) in the left graph, in black, and n(x) in the right graph, in blue. Both functions have a sharp corner at x=50. Let h(x)=n(m(x)). Find a point x where
asked by Michael on February 10, 2018 
Calculus
I have no idea how to do this, can someone please help? Consider the graphs below, which give m(x) in the left graph, in black, and n(x) in the right graph, in blue. Both functions have a sharp corner at x=50. Let h(x)=n(m(x)). Find a point x where
asked by Michael on February 10, 2018 
history
What was the significance of Winston Churchhill's Speech in 1946 in Fulton, Missouri? * plz help i have to write 2 paragraphs and cannot find enough info to write that much
asked by Brooke on May 24, 2011 
calc
Find the missing value: 1) log _____ = 1/2 Solve the equation, round to the thousandths place: 2) log8  log(n2) = 4log2 + log5
asked by summer on December 4, 2015 
English
Can some help me find a site that lists the types of heroes in literature? Specifically Tragic and Anti heroes. No Wiki or anything like that please, I need to be able to cite it for my essay. Thank you!
asked by Joan on January 20, 2010 
math
The smallest of three consecutive integers is added to twice the largest, the result so obtained is fifteen less than four times the middle integer. Find the integer s.
asked by kamal on December 15, 2016 
maths
a man sells two tables at the same price. On one he makes profit of 10% and on other he suffers a loss of 10 %.Find his loss or gain percent on the whole transaction
asked by yash on March 3, 2017 
physics
A physics professor lifts her 8.2kg briefcase at constant speed with an upward force. Find the magnitude of her force. answer in newtons.
asked by khan on February 21, 2011 
Algebra
The perimeter of the rectangle below is 74 units. Find the length of side AB . Write your answer without variables. DC (top) 4z1 CB (right side) 3z+3 AB (bottom) unknown
asked by Caleb on December 8, 2015 
math
Find the surface area of the right rectangular prism. The height is 2 in, the length is 10 in, and the width is 4 in. I think the answer is 136. I made a formula, 2(8 + 20 + 40) and I got 136. Is this right?
asked by keisha on November 12, 2007 
physics
density of silver is 10.5 X10^3 kg/m^3. find the volume occupied by 2X10^4 g of silver. calculate the force of gravity acting on the mass.
asked by Bailey on October 27, 2008 
calculus
find the vertex for the preceding algebraically: h(t)=16t^2+8t+8000 & then use the t intercepts and the vertex to define a reasonable window for a graphing calculator. please help!! & thank you so much
asked by Bella on October 19, 2009 
Chemistry
Please check my workings to see if i'm correct, thanks! Find the percentage of nitrogen by mass in Ammonium nitrate, NH4NO3. (28/80)x 100% = 35% Is my answer correct?
asked by Marrion on October 20, 2009 
Statistics
Suppose 5 cards are drawn, without replacement, from a standard bridge deck of 52 cards. Find the probability of drawing 4 clubs and 1 non club.
asked by DD on December 1, 2013 
maths
Find the wind velocity if course 060 degree, airspeed 250km/h; track 040 degree, ground speed 260km/h.
asked by Shane on August 8, 2013 
calculus
find an equation for the line with the given properties. express the equation in slopeintercept form containing the points. P=(5,4) and Q=(4,2) plz show work
asked by Heather on December 9, 2012 
Applied Mechanics
A mass of 4kg rest on a rough table with coefficient of force 0.4. Find tje force sufficient to move it horizontally.
asked by david agom on December 3, 2015 
Math
A pond 100 ft in diameter is surrounded by a circular grass walk 2 feet wide. Find the are of the walk. Answer in terms of π. Please help me! TY
asked by Kelly on May 6, 2011 
algebra
The line l_1 passes through the points (3,3) and (5,2). The line is the graph of the equation Ax + By = C, where A, B, and C are integers with greatest common divisor 1, and A is positive. Find A + B+ C.
asked by Kevin on January 24, 2015 
geometry
a right traingle has legs of lengths 3 centimeters and 5 centimeters. Use the pythagorean theorem to find the area of a square drwan on the hypotenuse of the triangle.
asked by Andrew on December 13, 2007 
maths
A balloon is rising 4 meters per second. If a wind is blowing horizontally at a speed of 2.5 meter per second, find the velocity of the balloon relative to the ground.
asked by Obsa Mohammed on June 18, 2019 
math
you want to find hot the length of a pendulum affects the time the pendulum takes to sing back forth. explain how you would model the situation
asked by Katherine on April 16, 2010 
Statistics
The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mean 43 and standard deviation 7. Find the percentile corresponding to p = 29% of the tire lifetimes.
asked by Anonymous on June 16, 2013 
Algebra
z^528z^3+27z=0 How do you use variable substitution and factoring to find all of the roots of this equation? I know how to do it if the z would have only been to the fourth power, but how do you do it with an odd numbered power like this? Thanks!!
asked by Tatiana on January 18, 2009 
geometry
A pyramid must have all equilateral triangles for faces for it to have an axis of symmetry. True or False? I thought maybe true, but I couldn't find it anywhere in my text saying yes or no. Help please?
asked by April on January 24, 2010 
trigonometric function
If sinA=12/13 & tan B=3/4 then find ¡= sin(A+B) ¡¡=COS(AB) ¡¡¡=COT(AB) ¡v=cot(AB) Sir please give me the correct ans because tomorrow is my class
asked by subhankar on April 15, 2015 
Health and Human Services
I am having problems looking for a definition of data relevancy and data accessibility related to the field of health care. Can someone help me find any information regarding these definitions.
asked by Lynn on January 25, 2010 
math
An electrician charges a fee of $45 plus $30 per hour. Let y be the cost in dollars of using the electrician for x hours. Find the slopeintercept form of the equation
asked by tamia on February 1, 2017 
pragati
in the given figure ABCD is a trapezium in which AD parallel to BC. Angle ABC= 90degree. AD=16cm, AC=41cm and BC=40cm.find the area of the trapezium.
asked by harsh on March 14, 2014 
arithmetic
Amanda is making xookies for a charity event. She expects 10 people to come. She wants to have 3 cookies for each person. How can Amanda use a patter to find the product for 6 x 10?
asked by ahlana on November 6, 2012 
Algebra 2
A radioactive substance decays at a rate of y = ae^0.1483t, where t in in hours. Find the halflife of the substance. How do I solve this problem if I am only given the constant.
asked by Sammantha Avants on December 1, 2015 
business
Would it be fair to pay U.S. employees that are relocated overseas a different wage than local employees? Can you please help me find resources in which I could answer this question fairly. thanks
asked by Adam on January 17, 2010 
math,algebra
can someone help me i've tried different numbers but i can come out to factor this: 2b^2+6b216=0 why don't you divide the equation by 2 to get b^2+3b108=0 now by trial and error, can you find two factors of 108 that have a difference of 3? (b9)(2b+24)
asked by jacky on March 26, 2007 
math
a rectangular field is to be enclosed with 600m of fencing. Find the dimensions of the field that will give you the greatest area. please help me.. exam tomorrow!:(
asked by calie on January 21, 2009 
mathsequation
a man travels some distance at a speed of 12km/hr and returns at 9km/hr .if the total time taken by him is 2hrs 20 min ,find the distance.
asked by anoynomous on March 7, 2013 
Math 3rd grade
Suppose you are comparing two numbers that are greater than 100. You want to find the smaller of the numbers. How many pairs of digits might you have to compare before you have your answer? Explain
asked by Patty on October 4, 2013 
pre cal
At a distance of 100 feet, the angle of elevation from the horizontal ground to the top of a building is 42 degrees. Find the height of the building
asked by krystal on November 7, 2012 
hea;th care
I am writing a essay on EMR and can not find The adoption period for EMR. I know it is a growing process but would like to know how long it takes ot first set it up in an organization. Can anyone help?
asked by april on November 21, 2009 
math
Write the dimensions of the following kitchen plan and find the area of its floor to be tiled presuming that the plan is drawn on dmsquare grid
asked by Shreyansh on December 14, 2016 
Math
Caleb's family room has the dimensions 5 1/4yd wide and 3 7/8yd long. he needs to find the area of the room so that he knows how much carpet to buy.
asked by Maggie on April 12, 2016 
science
a body of moss4kg moving with a uniform velocity30m/s is brought to rest in 6sec . find the force required to stop body.
asked by Anonymous on August 18, 2017 
MathTrigonometry
Use the halfangle formulas to find the exact values. Cosine 165 degrees, Sine 157 degrees 30' and tan pi/8
asked by Neicey on April 22, 2012 
calculus
On the graph of f(x)=6sin(8πx), points P and Q are at consecutive lowest and highest points with P occuring before Q. Find the slope of the line which passes through P and Q.
asked by Brittany on January 15, 2011 
Math
Jason and Coretta Bradley got a $206,000, 20year mortgage loan at 5.35%. Find the amount of the final payment on this mortgage.
asked by Byebye on May 10, 2018 
statistics
Use the normal dist to approx the desired prob. Find the prob of getting at most 30 fives in 200 tosses of a fair 6 sided die
asked by Sandra on October 4, 2013 
finite math
Find the amount of an ordinary annuity for 5 years of quarterly payments of $2,200 that earn interest at 4% per year compounded quarterly.
asked by Sarah on April 7, 2015 
maths
Find the height of a tree when it is found that on walking away from it 20 metres, in horizontal line through its base, the elevation of its top changes from 60 degree to 30 degree.
asked by srikesh iyer on January 17, 2010 
Physics
A driver entering the outskirts of a city takes her foot off the accelerator so that her car slows down from 90 km/h to 50 km/h in 10 s. Find the car's average acceleration.
asked by Emily on March 6, 2011 
Physics
Find the centripetal accelerations at each of the following points due to the rotation of Earth about its axis. (a) a point on the Equator of Earth ? m/s2 (b) the North Pole ? m/s2
asked by Anonymous on November 14, 2011 
Math
Triangle LMN hes vertices at L(4,3), M(2,5), and N(13,10). If the distance from point P(x,2) to L equals the distance from P to M, what is the value of x? Could you be so nice and help me please. I tried so hard but I couldn't find the same solution
asked by Gabi on April 14, 2011 
Data Management
The length of sunfish in Grenadier pond are normally distributed with a mean of 15cm. Find the standar deviation to one decimal place. If 91% of these fish have a length less than 17.7 cm.
asked by Kyle on March 25, 2009 
statistics
Can someone assist me in answering this question. Use the given values of n and p to find the mimimum usual value of u2standard deviations and the maximum ususual values u+20. n186, p=0.13
asked by natalie on August 4, 2007 
physics
Two carts with masses of 4.00 kg and 3.40 kg move toward each other on a frictionless track with speeds of 4.70 m/s and 3.56 m/s respectively. The carts stick together after colliding headon. Find the final speed.
asked by Brandon on November 8, 2012 
trig
ABC is rightangled triangle. AD is the bisector of angle BAC. Angle DAC=15 degrees. X=CD. Find X. I know the answer is 7.1 but do not know how to do the actual sum. Can you please help.
asked by jane on May 5, 2011 
physics
a car is moving with speed 30m/s .Due to application of brakes it travels 30m befor stopping .Find its accelaration
asked by Anonymous on July 30, 2017 
trig
ABC is rightangled triangle. AD is the bisector of angle BAC. Angle DAC=15 degrees. X=CD. Find X. I know the answer is 7.1 but do not know how to do the actual sum. Can you please help AB = 23 CM
asked by jane on May 5, 2011 
staistics
Can someone assist me in answering this question. Use the given values of n and p to find the mimimum usual value of u2standard deviations and the maximum ususual values u+20. n186, p=0.13
asked by natalie on August 5, 2007 
math
From 11 positive integer scores on a 10point quiz, the mean is 8, the median is 8, and the mode is 7. Find the maximum number of perfect scores possible on this test.
asked by anonymous on December 3, 2018 
8th grade
Can you help me find the roots of the polynominal of 5x2  x....I believe it is 0 and 5... I need help in finding the factorization of x2  15x + 56 and can u help me in finding the solutions of the equation x2 + 30x = 1000... I came up with 20 and 50..but
asked by fish boy on May 26, 2009 
math
you want to find hot the length of a pendulum affects the time the pendulum takes to sing back forth. explain how you would model the situation
asked by Katherine on April 17, 2010 
math
The volume V of a pyramid varies jointly as the area of the 1. ________________________ base B and the height h, and V=24 ft3 when B=12 ft2 and h=6ft. Find B when V=54 ft3 and h=9 ft.
asked by mad on April 28, 2013 
calculus
the displacement (in meter) of a particle moving in a straight line is given by the equation of motion s=5t^3+4t+2, where t is measured in seconds. Find the velocity of the particle at t=3.
asked by L.J on November 17, 2011 
trig
In a right triangle the hypotenuse is 100meters,and alpha, the angle adjacent to the shorter leg. If cos alpha=1/2, find the measures of the two legs.
asked by mrkkn on July 16, 2010 
Ratios  measurements
I need to find the ratio of the longest side to the length of the shortest side, then write each fraction in lowest terms. Both questions have more than 3 measurements: 1) 25 km to 24.5 km to 5 km 2) 6 3/4 ft. to 5 3/4 ft. to 3 1/4 ft. to 1 3/4 ft to 1 1/2
asked by Alex L. on October 26, 2011 
geometrie
(4, 5)'(9, 5) and (5,1) are three of a quadrilateral whose opposite sides are equal and parallel.there are three possibilities for the coordinates of the missing vertex.Find all three,and draw the three quadrilateral on a grid
asked by lydia on December 12, 2015 
Math
Find the surface area of the right prism with the given features. The bases are right trapezoids with bases of lengths 8 and 14 perpendicular to one side of length 18; height = 11.
asked by Suzy on April 10, 2015 
chemistry ............chemistry
if you had to design a firework show for a Christmas celebration , what elements would you include in the fireworks ? why ? I knew u post answer for me , but i can't find it . May you answer for me? Thank you so much !!
asked by Maria on October 15, 2012 
Math check
A population has a standard deviation ó of 28 units. (Give your answers correct to two decimal places.) (a) Find the standard error for the mean if n = 10. SD/Sqrt of N = 28/10^=.28
asked by Sue 71 on June 13, 2013 
math
For questions 1 and 2, use the integer values of x from 3 and 3 to graph the equation 1. y= 2x^2 +3 (the ^ means an exponent) 2. y= 1/3 x 2 Find the horizontal change and the vertical change from the translation P(4, 4) > (4, 7)
asked by Please Help! on April 13, 2017 
pre calc
how do uu find the x int. , y int. , domain range asytote of this equation y=log to the base 10 (2x+3/x5) pleaseee need to understand before the test tmr!!!!
asked by kikii on February 12, 2013 
MTH 156
Annies cafe borrows $9300 at 8% for 50 days. find the total amount that must be repaid after the 50 days. (Use a 365 day year)
asked by Cluless on November 26, 2010 
Astronomy
If a comet has a perihelion distance of 1.AU and an orbital period of 125 Earth years.. What is the comet's aphelion? Cannot seem to find the correct calculation
asked by Liz on December 13, 2007 
Math
The cost of Mrs.Taylors purchases was $45.87 She had a coupon for 20% off the total. Find, to the nearest cent, the amount of money she will save if she uses the coupon?
asked by Hannah on February 10, 2011 
math
a farmer wants to build a rectangular pen using a side of a barn and 60ft of fence. find the dimensions and area of the largest such pen
asked by joe on February 2, 2011 
chemistry
now am stuck on how to find the grams of X+Y=1.10 X for glucose and Y for sucrose i had 3.78=M0.08206*298 3.78/24.45=0.1546M 0.1546*0.025=0.003865 moles. now am stuck. help please
asked by bf on January 24, 2010 
physics
an object a is moving with 10m/s and bis moving with 5m/s in the same direction of positive x axis . ais 100 m behind b . find time taken by a to meet b
asked by Daljeet on July 21, 2012 
Physics
a box initially moving with a speed of 5m/s along a rough , horizontal floor , it stopped it after 5 m the conffenict friction is 0.3 find the work done by friction .
asked by Mariam on December 4, 2013 
math
A company manufactures calulatoirs in batches of 64 and ther is a 5% rate of defects. Find the standard deviation for the number of defects per batch
asked by Tami on October 24, 2011
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