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November 24, 2014

Homework Help: Math: Calculus

Recent Homework Questions About Calculus

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Calculus
A 13 foot ladder is leaning against the house when it's base starts to slide away. By the time is 12 feet from the house the base is moving at the rate of 5 ft/sec. 1.How fast is the top of the ladder sliding down the wall at that moment? 2. At what rate is the angle theta...
Thursday, October 16, 2014 at 8:26am

calculus
Find the maximum and minimum values of f(x, y) = xy on the ellipse 8\!x^{2} + y^{2} = 9.
Thursday, October 16, 2014 at 12:36am

calculus
Find the center of mass in the 1st quadrant of the circle x^2+y^2=4 where rho(x,y)=k(x^2+y^2) Thanks.
Wednesday, October 15, 2014 at 8:14pm

REALLY HARD CALCULUS PROBLEMMMM PLEASE HELP ME???
A circular swimming pool has a diameter of 16 m, the sides are 3 m high, and the depth of the water is 2.5 m. How much work (in Joules) is required to pump all of the water over the side? (The acceleration due to gravity is 9.8 m/s 2 and the density of water is 1000 kg/m 3 .) ...
Wednesday, October 15, 2014 at 4:31pm

Integral Calculus
A force of 4 pounds is required to hold a spring stretched 0.1 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 0.6 feet beyond its natural length?
Wednesday, October 15, 2014 at 4:28pm

calculus
Use iterated integral to find the area enclosed by r=2sin2(theta). How do i graph this?
Wednesday, October 15, 2014 at 12:15pm

Calculus problem (PLEASE HELP!!)
The diameter of a human pupil in millimetres is given by D= (2 + 4x^-0.3) / (1 + x^-0.3) where x is the luminance measured in candelas per square metre. Using this function,what is the diameter of the pupil when there is no light? What happens to the diameter of the pupil as ...
Wednesday, October 15, 2014 at 9:02am

Calculus (Need help)
Not sure how do do this. Please help? Find all values of a and b so that the function is continuous for all x E R. f(x)= −3a + 4(x^5)b x ≤ −1 { ax − 2b −1 < x < 1 3x^2 − bx + a x ≥ 1
Wednesday, October 15, 2014 at 7:21am

Calculus I
lim x→ ∞ of e^(−x) sin√x A little lost. Help would be appreciated.
Wednesday, October 15, 2014 at 5:49am

pre-calculus
You are given a pair of equations, one representing a supply curve and the other representing a demand curve, where p is the unit price for x items. -45 x^2 - 74.5199999999995 x + 15921.36 - 1224.72 p = 0 and 54 x^2 + 1743.12 x + 13880.16 - 6940.08 p = 0 a. Identify which is ...
Tuesday, October 14, 2014 at 10:01pm

pre-calculus
It has been found that the supply of lamps varies linearly with its price. When the price per item was $ 94.67 ,64 items are supplied; When the price was $ 134.67 , 124 items are supplied. How many lamps are supplied when the price per item is $ 118.00 ? What is the lowest ...
Tuesday, October 14, 2014 at 9:58pm

Calculus
Find all values of a and b so that the following function is continuous for all x ∈ R. f(x) = −3a + 4x^5(b) x ≤ −1 ax − 2b −1 < x < 1 3x^2 − bx + a x ≥ 1
Tuesday, October 14, 2014 at 6:32pm

calculus
The half-life of Radium-223 is 11.43 days. If a sample has a mass of 400 mg, find the mass (in mg) that remains after 6 days
Tuesday, October 14, 2014 at 4:04pm

Foundations and Pre-Calculus Math 10
Find the radius of a cone with a height of 3m and a volume of 30m cubed. So far I have 90m cubed / 3m = pi(r^)3m/3m. Then I get stuck. Help! I'm really bad at math. ):
Tuesday, October 14, 2014 at 1:30pm

pre-calculus
The Hotel Florence has 550 rooms. Currently the hotel is filled . The daily rental is $ 700 per room. For every $ 14 increase in rent the demand for rooms decreases by 7 rooms. Let x = the number of $ 14 increases that can be made. What should x be so as to maximize the ...
Monday, October 13, 2014 at 10:51pm

calculus
Use diferenciales para estimar la cantidad de estaño en una lata cerrada de este metal con diámetro de 8 cm y altura de 12 cm, si el estaño tiene 0.004 cm de grosor.
Monday, October 13, 2014 at 7:12pm

Pre-calculus
You are given a pair of equations, one representing a supply curve and the other representing a demand curve, where p is the unit price for x items. 80 p + x - 380 = 0 and 84 p - x - 40 = 0 Identify which is the supply curve and demand curve and the appropriate domain. Put the...
Monday, October 13, 2014 at 6:23pm

calculus
Find the dimensions of the rectangular box having the largest volume and surface area 60 square units
Sunday, October 12, 2014 at 6:49pm

Calculus
Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 6 ft high? (Round your ...
Sunday, October 12, 2014 at 6:25pm

calculus
The volume of a cube is increased from 729 cubic centimetres to 849.285 cubic centimetres. Use differentials to determine: a) by approximately how many centimetres the side length of the cube increases ? B) by approximately how many square centimetres does the surface area of ...
Sunday, October 12, 2014 at 3:18pm

Calculus
A water trough is 9 m long and has a cross-section in the shape of an isosceles trapezoid that is 40 cm wide at the bottom, 80 cm wide at the top, and has height 40 cm. If the trough is being filled with water at the rate of 0.3 m3/min how fast is the water level rising when ...
Sunday, October 12, 2014 at 2:21pm

calculus
use differentials to determine by approximately how many square centimeters does the area of a square table increase if its diagonal is increased from 4 centimeters to 4.092 centimeters the question is The area of table increases by approximately (??) square centimetres
Saturday, October 11, 2014 at 5:52pm

statistics
On this semesters final exam, john scored 72 on his calculus exam and 53 on his statistics exam. The z score for both exams was the same. Which on would he do better on? a. calculus b.statistics c. the exam scores are equivalent
Saturday, October 11, 2014 at 5:52pm

Calculus
The volume of a cube is increased from 729 cubic centimetres to 849.285 cubic centimetres Use differentials to determine : (a) by approximately how many centimetres does the side length of the cube increase? (b)by approximately how many centimetres does the surface area of the...
Saturday, October 11, 2014 at 3:50pm

calculus
the surface area of a cube is increased from 24 square centimeters to 26.016 square centimeters . use differentials to determine: (1) by approximately how many centimeters does the side length of the cube increase? (2) by approximately how many cubic centimeters does the ...
Saturday, October 11, 2014 at 2:55pm

statistics
On this semesters final exam, john scored 72 on his calculus exam and 53 on his statistics exam. The z score for both exams was the same. Which on would he do better on? a. calculus b.statistics c. the exam scores are equivalent
Friday, October 10, 2014 at 8:17pm

calculus
Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answer to two decimal places.) tan x ≈ x
Friday, October 10, 2014 at 6:20pm

pre-calculus
You are given a pair of equations, one representing a supply curve and the other representing a demand curve, where p is the unit price for x items. 80 p + x - 380 = 0 and 84 p - x - 40 = 0 a. Identify which is the supply curve and demand curve and the appropriate domain. Put ...
Friday, October 10, 2014 at 5:06pm

economics
First,label the following scenarios as to whether they would create a producer or consumer surplus. Then, after you have labeled each scenario, calculate the ensuing surplus. Claire is trying to sell her used calculus textbook online. She asks for $150 or best offer and is ...
Friday, October 10, 2014 at 11:09am

calculus
f(x,y)=2xe^y-3ye^-x derive second order
Friday, October 10, 2014 at 1:07am

Calculus
Would you please check my answer to make sure I did it right? Bus travel, a bus company finds that monthly costs for one particular year were given by C(t) = 100 + t^2 dollars after t months. After t months the company had P(t) =1000 +t^2 passengers per month. How fast is its...
Thursday, October 9, 2014 at 5:19pm

pre calculus
sinB + cosB cotB = cscB
Thursday, October 9, 2014 at 9:28am

Calculus
Some cowboys plan to build a rectangular corral in a canyon. They have 500 feet of fencing to use for three sides of the rectangle (the canyon wall is used for the 4th side). a) What is the maximum area that they can fence in? b) What are the dimensions of the rectangle?
Wednesday, October 8, 2014 at 8:33pm

statistics
Correction On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, ?=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/2.04=1.960
Wednesday, October 8, 2014 at 8:11pm

statistics
On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, ?=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/3.57=1.120
Wednesday, October 8, 2014 at 8:03pm

Calculus I
cos(2x)−cos(x) = -((sin^2)x + 1/4) Need help solving.
Wednesday, October 8, 2014 at 11:38am

CALCULUS HELP NEEDED ASAP!
Having a lot of trouble with this one: Q) Tidal volume is the volume of air displaced in the lungs between inhalation and exhalation (the amount of air in a breath). The residual volume is given by the remaining in the lungs even after the deepest exhalation (ie the minimum ...
Wednesday, October 8, 2014 at 11:36am

pre-calculus
A machine worth $10,000 new and having a scrap value of $1000 is to be depreciated linearly over an 18-year life. What will be the value of the machine after 9 years?
Tuesday, October 7, 2014 at 11:03pm

calculus
An airplane flys at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will take it directly over a kangaroo on the ground. How fast is the angle of elevation of the kangaroo's line of sight increasing when the distance from...
Tuesday, October 7, 2014 at 10:09pm

Statistics
On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \σ=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, σ=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/3.57=1.120
Tuesday, October 7, 2014 at 9:48pm

Calculus Please Help!
Not sure how to do this. Asked before but it was hard to type out the symbols in the equation, so I have a screenshot below. exactly Please help! s.yimg(.)com/hd/answers/i/36cad89caaff40​61bf38ed04166cbd76_A.png?a=answers&mr=0&​x=1412733166&s=...
Tuesday, October 7, 2014 at 7:54pm

Calculus question
It looks very complicated and I do not know how to even start. Any help would be immensely appreciated. A pendulum has a mass, m, suspended from a rod of length L. At the time t = 0, the pendulum is pulled through an angle θ0 > 0 to the right and given an initial ...
Tuesday, October 7, 2014 at 6:55pm

Calculus
An airplane flys at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will take it directly over a kangaroo on the ground. How fast is the angle of elevation of the kangaroo's line of sight increasing when the distance from...
Tuesday, October 7, 2014 at 6:46pm

Calculus help please
I have to evaluate the following: tan((sin^-1)(2/7)) and sin^-1 (sin(17pi/6)) Please help.
Tuesday, October 7, 2014 at 6:44pm

Calculus
slope of tan line to the ellipse is -4x/y for x^(2)/4+y^(2)/16 Are there any points where the slope is not defined? (Enter them as comma-separated ordered-pairs, e.g., (1,3), (-2,5). Enter none if there are no such points.) slope is undefined at
Tuesday, October 7, 2014 at 5:05pm

calculus 1
Suppose that a person’s blood pressure at time t in seconds is given by p(t) = 100 + 18 sin (7t). (a) During each heartbeat, what is the systolic pressure (maximum blood pressure) and the diastolic pressure (minimum blood pressure)? (b) According to this model, how many ...
Tuesday, October 7, 2014 at 3:17pm

Calculus
Simplify the expression cot (cos−1(x)). Not sure how to do this.
Tuesday, October 7, 2014 at 3:12pm

calculus
Find the slope of the tangent line to the curve (2x+4y)^1/2+(2xy)^1/2=13.4 at the point (6,5).
Tuesday, October 7, 2014 at 11:43am

Calculus
Suppose that two boats leave a dock at different times. One heads due north, the other due east. Find the rate at which the distance between the boats is changing when the first boat is 56 miles from the dock traveling at a speed of 35 miles per hour and the second boat is 20 ...
Tuesday, October 7, 2014 at 11:36am

AP Calculus
Using the definition of derivative find f'(x) when f(x) = (1/sqr x) + x.
Tuesday, October 7, 2014 at 9:34am

Physics
A pistol is shot upwards at an angle of 37 degrees above horizontal, with an initial velocity of 375m/s. What height does it reach? What is its horizontal range? (I pretty much know what formulas to use, but I'm not quite sure HOW to use them.. Also you should know that ...
Monday, October 6, 2014 at 11:57pm

Pre Calculus
Using Descartes' Rule of Signs how can you determine the number of positive and negative zeros (roots) a polynomial may have?
Monday, October 6, 2014 at 7:05pm

Pre Calculus
If f(x)=-4x^3 +5x^2 +8 and c=-2 is c a factor of x?(Use the Factor Theorem)
Monday, October 6, 2014 at 5:41pm

Calculus
A light is hung 15 ft above a straight horizontal path. If a man 6 ft tall is walking away from the light at the rate of 5 ft/sec, how fast is his shadow lengthening and at what rate is the tip of the man’s shadow moving?
Monday, October 6, 2014 at 10:48am

Timerate problem(calculus)
Sand is being dropped at the rate 10 metercube/min onto a conical pile. If the height of the pile is always twice the base radius, at what rate is the increasing when the pile is 8 m high?
Monday, October 6, 2014 at 10:46am

calculus
How to solve by completing the square? 1. 4(c+3)^2=1/4 2. (2p-5)^2=1/4 3. 2w^2-3w-3=0
Monday, October 6, 2014 at 12:54am

Calculus
let F(x) = f(2x) and suppose that the derivative of F(x) = x^(2). Find the derivative of f(2x).
Sunday, October 5, 2014 at 11:46pm

Calculus
So here is the question: Find and equation of the tangent line to the graph: 4)f(x)=e^(2x) passing through the point (0,0) I find derivative being f'(x) =2e^(2x) Then m = f'(0) = 2 put into point slope formula: (y-y1)=m(x-x1) y-0 = 2(x-0) which comes out to y=2x 0=2x...
Sunday, October 5, 2014 at 10:27pm

calculus
Implicit diff. y^2 + 4xy +4y^2=40 2yy'+ _______ + 8y*y=0 I am confused with the 4xy. Would you write this out to be 4x*y'+4y OR 4x*4y' + 4y*4x'? Please help
Sunday, October 5, 2014 at 3:46pm

Calculus
Integrate sqrt(x^2 + x) dx I have completed the squares and got x^2-x = (x+1/2)^2 -1/4 Now i dont know how to proceed, plz help me!
Sunday, October 5, 2014 at 3:42am

Calculus
I have y = sin^2(3^(x)) which I rewrite as y = (sin(3^(x)))^2 I got the derivative using the chain rule as the following y' = 3(sin(3^x))^2 (cos(3x)) (3^(x)(ln(3)) Can anyone confirm whether this is right/wrong? Thanks
Sunday, October 5, 2014 at 12:40am

Calculus
Find the equation of the tangent to the curve y=3x^2+4x which makes a 45 degree angle with the negative x-axis
Saturday, October 4, 2014 at 6:48pm

pre-calculus
It has been discovered in a certain state that the relationship between the number of snow shovels demanded varies linearly with its price. When the price per item was $ 38 ,2200 items were demanded; When the price was $ 49 , 2125 items were demanded. Determine the price per ...
Friday, October 3, 2014 at 9:40pm

Calculus
Find all values of x if any where the tangent line to the graph of the given equation is horizontal? y= x - sqrt (x) I am very confused would I work it like this? y = x - x^-1/2 then set x = 0? Please explain. thank you!
Thursday, October 2, 2014 at 11:45pm

pre calculus
Use Hooke's Law for springs, which states that the distance a spring is stretched (or compressed) varies directly as the force on the spring. A force of 265 newtons stretches a spring 0.15 meter. (a) What force is required to stretch the spring 0.2 meter? (Round your ...
Thursday, October 2, 2014 at 7:46pm

Calculus
True or false: a) if f(x) is continuous at a, then the limit of f(x) as x approaches a exists b) if the limit of f(x) as x approaches a exists, then f(x) is continuous at a My answer: a) false b) true
Thursday, October 2, 2014 at 7:33pm

calculus
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x+y=4,x=5−(y−1) 2 ;
Wednesday, October 1, 2014 at 11:38pm

Stat
Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution
Wednesday, October 1, 2014 at 4:46pm

Pre-Calculus/Trig...
Help Please For the function defined by: f(x)= (x^2,x≤1) (2x+1,x>1) Define f(0). and also how would i graph f(x)?
Wednesday, October 1, 2014 at 11:06am

Pre Calculus
e^-x sqrt(3e^2x -5/4) = e^x No idea how to approach this.
Wednesday, October 1, 2014 at 6:55am

Calculus
Hi. I need help with finding the derivative of the function: y= [(sec^7 x)/7] - [(sec^5 x)/5] Thanks!
Tuesday, September 30, 2014 at 9:38pm

Calculus
Hi! I need help finding the derivative of this function. f(x)= ln [(x(x-1))/(x-2)] Thank you.
Tuesday, September 30, 2014 at 9:05pm

Pre-Calculus/Trigonometry
Express the following function, F(x) as a composition of two functions and f and g. f(x)= x^2/(x^2+4)
Tuesday, September 30, 2014 at 4:29pm

Pre-Calculus/Trigonometry
For the sequence an = 4n + 5: find: the first five terms: find the sum of the first 25 terms: is it a arithmetic sequence? If so how can you tell, if not, why not?
Tuesday, September 30, 2014 at 4:20pm

Pre-Calculus/Trigonometry
Solve the following system of equations algebraically. Verify the solution by using matrices. 8x-2y=5 -12x+3y=7
Tuesday, September 30, 2014 at 1:23pm

Pre-Calculus/Trigonometry
For f(x)= 1/(x-5) and g(x)= x^2+2, find: a. (f o g)(x) b. (g o f)(6)
Tuesday, September 30, 2014 at 12:58pm

Stat
Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution. what formula do i use????
Tuesday, September 30, 2014 at 12:36pm

Pre-Calculus/Trigonometry
for f(x)= 1/(x^2-3), find: a. f(3) b.f(2+h)
Tuesday, September 30, 2014 at 12:01pm

Pre-Calculus/Trigonometry
Solve the following system of equations algebraically. Verify your solution by using matrices. 3x-y=0 5x+2y=22
Monday, September 29, 2014 at 7:22pm

Calculus
Solve the following e^-x (square root((3e^2x) - 5/4)) = e^x
Monday, September 29, 2014 at 6:58pm

Pre-Calculus/Trigonometry
give an example of an arithmetic sequence also give an example of a system of equations with no solutions
Monday, September 29, 2014 at 5:42pm

Pre-Calculus/Trignometry
am i right? for f(x)=2x+1 and g(x)=x^2-7 find (fog)(x. 2x^2-13 <--
Monday, September 29, 2014 at 4:24pm

Pre-Calculus/Trignometry
Give an example of a function whose domain is [2,infinity).
Monday, September 29, 2014 at 4:09pm

Calculus
r=log(cos^2(4theta)) what is the derivative of this?
Monday, September 29, 2014 at 10:24am

Calculus
What is the derivative of y=2^x?
Sunday, September 28, 2014 at 8:17pm

CALCULUS
I need to find the unit normal vector given: r(t)= ti + (6/t) j where t= 3 I know I need to find the unit tangent vector first, which is r'(t) divided by the magnitude of r'(t). r(t) can be rewritten as ti+ 6t^-1 r'(t) = i- 6t^-2 = i- [6/ (t^2)] j For the magnitude...
Sunday, September 28, 2014 at 4:21pm

Calculus Minima Problems
A small island is 2 km off shore in a large lake .A woman on the island can row her boat 10 km/hr and can run at a speed of 20 km/hr. If she rows to the closest point of the straight shore, she will land 6 km from a village on the shore. Where should she land to reach the ...
Sunday, September 28, 2014 at 12:32pm

Calculus Maxima/Minima
An automobile traveling at the rate of 30 ft/sec is approaching an intersection. When the automobile is 120 ft. from the intersection, a truck, traveling at the rate of 40 ft/sec on a road at right angles with the automobile’s road crosses the intersection. How long after...
Sunday, September 28, 2014 at 11:30am

Calculus
A small island is 2 km off shore in a large lake .A woman on the island can row her boat 10 km/hr and can run at a speed of 20 km/hr. If she rows to the closest point of the straight shore, she will land 6 km from a village on the shore. Where should she land to reach the ...
Sunday, September 28, 2014 at 11:29am

Pre-Calculus
1.) Find (f - g)(x) if f(x) = 2x - 5 and g(x) = 4. 2.) Given f(x) = 4 and g(x) = 2x - 1, find (f - g)(x). Thanks so much! :)
Sunday, September 28, 2014 at 8:35am

Calculus
Hello, my question is the following: The derivative of f(x) = ln(x) is given by f'(x) = 1/x. Find an equation of the tangent line to the graph y = ln(x) that passes through the point (0,0). So if I go through this using the typical method I use I have the point slope ...
Saturday, September 27, 2014 at 7:04pm

Calculus
2. The slope of the tangent line to the graph of the exponential function y=2^x at the point (0,1) is the limit of (2^x-1)/x as x approaches 0. Estimate the slope to three decimal places. My work: (-1,0.5) (-0.5,0.586) (-0.9,0.516) (-0.999,0.5) (0,empty) (0.0001, 0.693) (0.001...
Friday, September 26, 2014 at 7:35pm

Calculus
1. Evaluate the function at the given numbers (correct to six decimals places). Use the results to guess the value of the limit,or explain why it does not exist. F(t)=( t^(1/3) - 1)/(t^(1/2) - 1) ; t= 1.5,1.2,1.1,1.01,1.001; The limit of F(t) as t approaches 1. My work: t=1....
Friday, September 26, 2014 at 5:25pm

Pre-Calculus
Help please If f(x)=8x and g(x)=2x+1 find (fog)(x) 16x^2+8x 16x+1 16x+8 10x+1
Friday, September 26, 2014 at 5:02pm

Pre-Calculus
Help Please Solve the following system of equations. Round your answers to the nearest tenth. Your answer will be in the form: (M,N). Find M + N, rounded to the nearest tenth. 5x+2y=7 -2x+6y=9
Friday, September 26, 2014 at 11:46am

Pre-Calculus
Hello! I need help with these 2 questions: 1.) Describe how the graphs of f(x) = |2x| and g(x) = -|2x| are related. a.) All of these. b.) The graph of g(x) is a reflection of the graph of f(x) over the y-axis. c.) Non of these. d.) The graph of g(x) is a reflection of the ...
Friday, September 26, 2014 at 8:19am

Calculus
A man standing 9 feet from the base of a lamppost casts a shadow 6 feet long. If the man is 6 feet tall and walks away from the lamppost at a speed of 30 feet per minute, at what rate, in feet per minute, will his shadow lengthen?
Thursday, September 25, 2014 at 11:55pm

calculus 1
a ladder 20 ft. long rests against a vertical wall.If the bottom of a ladder slides away from the wall at a rate of 4 ft./sec, how fast is the top of the ladder sliding down the wall when the bottom of the ladder is 12 ft. from the wall? x^2 +y^2 = 20^2 x^2 + y^2 = 400 ...
Thursday, September 25, 2014 at 9:57pm

Calculus
I am so lost, I have no idea what to do next. Find the equation of the tangent line to the graph at the indicated point f(x) =x^2 +x ; a=-1 I started out using f(-1)= (-1+h)-(-1)/h but i am so lost on what to do next. I have tried to look at examples in the book, but i do not ...
Thursday, September 25, 2014 at 6:29pm

Calculus
It is known that the quantity demanded of a certain make of portable hair dryer is x hundred units/week and the corresponding wholesale price is shown below where p is in dollars. p = sqrt(225 - 5x) The supplier will make x hundred units of hair dryers available in the market ...
Thursday, September 25, 2014 at 2:09am

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