# find the derivative of y=(3x+1)^2 y= square root 13x^2-5x+8

97,722 questions, page 562
1. ## Math

Find the amplitude, frequency, and distance when t=3 a. y=-15cos((pi*t)/3)+5 b. y=120sin100pi*t I think the amp for a. is 15, the freq is 3/2 cycles per unit of time, and the distance is 20, but I'm not totally sure if I'm approaching this problem

asked by Andrew on December 25, 2014
2. ## Calculus 1

Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = sqrt(x), [0,16]

asked by TayB on October 24, 2015
3. ## Math

Write a compount interest function to model each situation. Then find the balance after the given number of years \$27,000 invested at a rate of 3.75% compounded quarterly; 3 years

asked by M on April 14, 2015
4. ## Physics

A half-atwood machine is constructed, as shown in the drawing below. The table is NOT frictionless, M1 is 50 grams, and M2 is 30 grams. Mass M2 descends 32 cm in 18 seconds. Find the tension in the wire.

asked by Dee on March 21, 2013
5. ## Physics

A plane designed for vertical takeoff has a mass of 6.4 ✕ 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 8.4 m/s2 through a distance of 30.0 m after starting from rest.

asked by Ben on November 20, 2014
6. ## Chemistry

Iron crystallizes in a body–centered cubic structure. The volume of one Fe atom is 9.38 x 10–24 cm3, and the density of Fe is 7.874 g/cm3. Find an approximate value for Avogadro’s number.

asked by Ian Palen on December 8, 2012
7. ## Math

Find the probability that if the letters of the word "parallel" are randomly arranged that the L's will not be together. In class, I'm studying permutations and combinations. The solutions stated the no. of permutations where 3 L's are together is 6!/2!.

asked by Candice on October 11, 2012
8. ## Math

A \$26,000 company car is expected to be driven for 120,000 miles and then salvaged for \$3,500. Find the unit depreciation using the units-of-production method

asked by Khandi on July 29, 2008
9. ## UOG

An initial investment of \$12,000 is invested for 2 years in an account that earns 4% interest compounded quarterly. Find the amount of mnoey in the account at the end of the period.

asked by Amy on April 9, 2013
10. ## Physics

A block of mass 5 kg, which has an initial speed of 3 m/s at time t = 0, slides on a horizontal surface. Find the magnitude of the work that must be done on the block to bring it to rest. Answer in units of J.

asked by Dave on February 27, 2011
11. ## maths

Two walkers set off at the same time from a crossroad and walk along flat straight roads inclined to each other at 68 degrees.If they both walk at a speed of 6km/h,find their distance apart 10 minutes later.

asked by Shane on March 10, 2013
12. ## trigonometry

From a point 150 ft from the base of a building the top and the base of a flagpole on a roof edge have angles of elevation of 27degrees49' and 21degrees42' respectively. Find the height of the pole.

asked by nina on January 6, 2014
13. ## Calculus: Centers of Mass

Find the centroid of the region in the first quadrant bounded by the x-axis, the parabola y^2 = 2x, and the line x + y = 4. I've graphed the function, and it looks like a triangle with one side curved (the parabola). I'm not quite sure how to go about the

asked by Anonymous on November 17, 2016
14. ## Algebra

SOlve you have 78 feet of fencing to enclose a rectangular pasture by a barn. If you do not fence the side along the barn, find the length and width of the lot that will maximize the area

asked by Anonymous on March 5, 2013
15. ## History

How many years did it take Sir Francis Drake to complete the first circumnavigation of the globe in 1580 I don't want a straight up answer but if I could get a link to read and find the answer that would be great.

asked by Maker on December 12, 2018
16. ## Math

Hi. So we had a long test with this question.. I was wondering how to solve it? Coz our teacher didn't discuss the answers.. and most probably we'll have the same type of question during midterms.. Find the Solution Set 9/|2-5x| - 4/y^2-3y = 5 2/|2-5x| +

asked by Jen on August 17, 2011
17. ## physics

find the solution of the wave equation for a vibrating string of length (l)=10units with ends fixed .it is given that c^2=1,initial velocity is zero and initial deflection is u(x,o)=k(sinx-sin2x)

asked by ashely on February 11, 2012
18. ## Math

In a factory, a parabolic mirror to be used in a searchlight was placed on the floor. It measured 40 centimeters tall and 90 centimeters wide. Find the equation of the parabola. I tried working this problem out and I got y=-8/405x^2+40, but I'm not sure if

asked by Gabby on April 12, 2012

In these addends, each letter represents a single digit. Find the numbers. CENT + CENT SCENT _______ 35128 I don't know if I have to use any number in this problem to addition. Can you help me? thanks

asked by gianina on December 15, 2009
20. ## math

A solid metal sphere of radius 4.2cm was melted and molten material used to make a cube. Find to 3 significant figures the length of the side of the cube.

asked by kudu on February 24, 2015
21. ## algebra 2

Ms. Tweed earns \$12 an hour. Deductions for taxes and insurance take 25 percent of her earnings. Which equation could be solved to find Ms. Tweed’s take-home pay, p, after 80 hours of work?

asked by hannah on October 27, 2013
22. ## Calculus

let d2y/dx2= 6x. Find a solution to the differential equation that is continuous for negative infinity to positive infinity and whose graph passes through the point (0,1) and has a horizontal tangent there.

asked by Anastasia on February 26, 2011

16. Find the final balance in an account with \$730 invested at 3% annual simple interest for 4 years. (1 point) \$735.48 \$87.60 \$817.60 \$8,760.00 is the answer 817.60

asked by Delilah on December 5, 2012
24. ## algebra

pricipal is30,000 rate of interest is three and five eigth time thirty years find amount in account .show me step by step how to solve

asked by Teresa on September 26, 2010
25. ## phyics

A car takes 11 s to go from v=0m/s to v = 22 m/s at constant acceleration. If you wish to find the distance traveled using the equation d=1/2at2, what value should you use for a? Express your answer to two significant figures and include the appropriate

asked by sarah on September 20, 2015
26. ## physics

a body weighing 40N drops freely from a hieght of 50m and penetrates into the ground by 100cm.find the average resistance to penetration and the time of penetration.

asked by impulse and momentum on September 21, 2011
27. ## Math

A car is stopped at a red light, and starts moving at time t = 0 when the light turns green, with an acceleration given by a(t) = √t, with t given in seconds, and distances given in metres. a. Find a Formul

asked by Mr Homie on June 6, 2016
28. ## physics

Find a vector with a magnitude of 1.00 that bisects the angle between the vectors 5.00i + 11.0j and 2.00i − 1.00j. Give your answer in rectangular coordinates. Please explain how you arrived at the solution. Thanks!

asked by melissa on January 19, 2011
29. ## physical science

. The maximum allowable resistance for an underwater cable is one hundredth of an ohm per metre. If the resistivity of cooper is 1.54 × 〖10〗^(-8) Ω m, find the least diameter of a copper cable that could be used (show work)

asked by michelle on February 17, 2017
30. ## Algebra 2

How do I draw the diagram/graph for this problem? Find the exact values of the six trigonometric functions of theta if the terminal side of theta in standard position contains the point (0,-4)

asked by Ana on May 19, 2010
31. ## geometry

Write an equation for each circle described. Center at origin,radius is 3. I'm stuck.aren't I suppose to be given an endpoint for me to be able to use the midpoint formula to find the center? I need help please...oh that's the only thing they give me.

asked by ian on February 19, 2013
32. ## PHYSICS help!!!!!!

A light fixture of mass 10.4 kg is suspended in the corner of a room by a combination of three wires, as shown in the diagram (below, left). If angle θ = 35.0 degrees, find the tension in each of the three wires.

asked by neeba on September 30, 2012
33. ## Math

The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 42 years

asked by Lataivia on April 10, 2014
34. ## Physics-Urgent

A sign with a mass of 23 kg is hanging in two wires both making an angle of 27 degrees with the vertical. Find the tension in one of the wires. Give your answer in newtons (N) and with 3 significant figures.

asked by Anonymous on September 27, 2015
35. ## Chemistry

what is the difference bewteen a quantity and a number? a bathroom scale is 20kg mass, and a 50 poud mass how could you find a unitart rate to convert from pounds to kilograms? thanks

asked by Jo on September 30, 2008
36. ## Calculus (Area Between Curves)

Find the area of the region IN THE FIRST QUADRANT (upper right quadrant) bounded by the curves y=sin(x)cos(x)^2, y=2xcos(x^2) and y=4-4x. You get: a.)1.8467 b.) 0.16165 c.) 0.36974 d.) 1.7281 e.) 0.37859

asked by Mishaka on February 29, 2012
37. ## calculus

Consider the following shaded region. Find the area S of this region if a = 6, b = 3. (Give an exact answer.) The two graphs intercept at 0 and the other limit is not given. The integral is int(ax-x^2)-(bx. So y=ax+x^2 is the graph on top and y=bx is at

asked by aimee on February 12, 2010
38. ## physics

A 8.74-kg hanging weight m2 is connected by a string over a pulley to a 5.00-kg block m1 that is sliding on a flat table. If the coefficient of kinetic friction is 0.190, find the tension in the string.

asked by lucas on September 28, 2015
39. ## Geometry

Let O and H be the circumcenter and orthocenter of triangle ABC, respectively. Let a, b, and c denote the side lengths, and let R denote the circumradius. Find OH^2 if R = 7 and a^2 + b^2 + c^2 = 29. I tried to draw a diagram but it didn't work out too

asked by John on May 13, 2014
40. ## Physics

A chandelier of mass 120.0kg is supported by two cords. The first makes an angle of 60° with the ceiling and the second supports it horizontally to the wall. Find the tension in the two cords (g=9.8ms²)

asked by Elzeera-D on February 18, 2018
41. ## algebra

An initial investment of \$480 is appreciated for 7 years in an account that earns 15% interest, compounded quarterly. Find the amount of money in the account at the end of the period.

42. ## Algebra

I have no clue how to do this (uniform motion 1)2 bycicles start from the same point and ride in opposite directions. 1 rider is moving twice as fast as the other. In 3h, they are 72mi apart. Find the rate of each rider

asked by Chris on September 23, 2008
43. ## math

find the value of sin theta for angle theta in standard position if point with coordinates (negtive 3, 2) lies on its terminal side. i had 2 over sqrt 13 but it was wrong please correct.

asked by lily on April 10, 2009
44. ## calculus

a toy wagon is pulled by exerting a force of 15 pounds on a handle that makes a 30 degree angle with the horizontal. find the work done in pulling the wagon 50 feet.

asked by Nancy on May 12, 2010
45. ## Mathematics

Kinda lost with this one Given that hx^3 - 12x^2 - x + 3=(2x-1) (2x+1) (x-k) find the values of the constants k and h don't even know where to start when the sum of 1.9 and 2.2 is subtracted from the product of 1.9 and 2.2, what is the differance? don't

asked by Mallory on March 11, 2007
46. ## Math (Pre-cal)

I can't seem to figure this out. A ship leaves at noon and travels due West at 20 knots. At 2:00 it changes to N54°W...Find the bearing and the distance FROM port at 3:00 pm. I've looked at this program for a while but can't figure it out.

asked by Dragon on January 26, 2011
47. ## Physics

Police find skid marks 60 m long on a road showing where a car made an emergency stop. Assuming that the deceleration was -10m/s2, how fast was the car going?

asked by Jeff on February 9, 2014
48. ## physics

A plane designed for vertical takeoff has a mass of 8.2 ✕ 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 10.5 m/s2 through a distance of 25.4 m after starting from rest. J

asked by Anonymous on December 11, 2014
49. ## Gov.

I'm supposed to compare and contrast the Democrat and Republican party. I can't find a good site that just gives this information in black and white. I want statistics and facts, any site ideas?

asked by Ashlee on November 1, 2007
50. ## Physics

a 20kg box is pulled across ahorizontal surface with aforce of 100nt. The coefficient of friction is .3 (a) find the acceleration. (b) how far will the box move in 5 sec. (c) What is the velocity at this time?

asked by bird on January 30, 2011
51. ## Calculus

Consider a circle of radius 5 and a point P rotating around it, as shown in the figure to the left, below. The angle(theta) , in radians, is given as a function of time t, by the graph in the second figure. What is the value of when t=0.5? Find the

asked by Sachenka on February 1, 2011
52. ## Pre Algebra

You deposit \$3350 into a savings account that earns 5% interest compounded annually. Find the balance of the account after 2 years. Round your answer to the nearest cent

asked by Sarah on March 13, 2012

Pedro knew that none of his neighbors would have to pitch tents and live in their yards while repairs were made to their homes. WHAT DOES PITCH MEAN IN THIS CONTEXT?? I DIDN'T FIND ANY DEFINITIONS ONLINE!

asked by BUBBY on September 24, 2015
54. ## english

anyone know some controversial issues in the news papers lately?if so, please tell me.i really need it.=) thanks! Go to http://news.google.com Read through the stories. Find one that interests you. It might be a local, national, or international story.

asked by Twinkle on April 29, 2007
55. ## Physics

4 kg of lead shot at 91.1o C are poured into 4 kg of water at 29.5o C. Find the final temperature (in oC) of the mixture. Use cwater = 4187 J/kg oC and clead = 128 J/kg oC. Please i need the answer and equation used to solve for the answer Thanks!

asked by Jake on February 7, 2019
56. ## Chemistry

K+(aq) + Al3+(aq) + 2SO42-(aq) + 2H2O(l)→KAl (SO4)2 * 12H2O(s) Al is limiting and 1.007 g Find the theoretical yield and percent yield I think the answer is 17 and 40, respect. I just need help figuring it out

asked by Emily on December 5, 2013
57. ## Physics

Find the energy (in joules) of the photon that is emitted when the electron in a hydrogen atom undergoes a transition from the n=7 energy level to produce a line in the Paschen series.

asked by Jenny on September 11, 2008
58. ## geomerty

A manufacturer made a container that looked like the Washington Monument to fill with raisins, as shown. Find the volume of the container the base is 2 in and 2 in the height is 5 in then the triagle is 2 in. There is a line between the h 5 and the 2

asked by Hannah on May 27, 2013
59. ## physics

A speedboat increases its speed uniformly from v1 = 20 m/s to vf = 26 m/s in a distance of 1.60 102 m. Substitute given values, obtaining the acceleration. Find the time it takes the boat to travel the given distance.

asked by klew on September 2, 2011
60. ## US History

Describe the deal the South Improvement Company made with the railroads and the advantages offered Standard Oil as well as the railroads. Can't find the answer anywhere in the packet that I was given. Any help would be appreciated, please and thank you!

asked by Alex on January 8, 2014
61. ## Math

I'm learning about trigonometric functions, and my worksheet instructs me to find the "missing information" for each triangle. For the first one, they give me the length of the hypotenuse (45) and that theta = 35. How can I go about finding the missing

asked by Lindsay on October 2, 2007
62. ## physics

A machine with a velocity ratio requires 1000J of work to raise a load of 500N through a vertical distance of 1.7m . find the efficiency and mechanical advantage of the machine.

asked by Azeez on February 19, 2016
63. ## Math

The volleyball court -if it id 80 ft long and 50 ft wide, how would you find the dimensions of the court? Explain please! Remember that I am a 6th grader. Please don't give me a 10-12th grade answer.

asked by D on September 24, 2012
64. ## Math

Assume that women’s heights are normally distributed with a mean of 63.6inches and a standard deviation of 2.5inches. If 90 women are randomly selected, find the probability that they have a mean height between 62.9inches and 64.0inches.

asked by Help on May 15, 2019
65. ## Algebra

Please help me to solve this Radical Expressions and equations word problem. Here is the question: Find the perimeter and the area of the rectangle. Here are the measurements: length is (sqrt 6+2) and the width is (sqrt 6-2)

asked by Jay on November 22, 2014
66. ## Math

The price of a gallon of unleaded gas was \$2.86 yesterday. Today, the price fell to \$2.81 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.

asked by Nayomi on January 29, 2018
67. ## Calculus

Find the linear approximation of the function f(x)=^3sqrt(1+3x) at a=0 and use it to approximate ^3sqrt(1.03)Is this an overestimate or underestimate of the actual value? Explain your answer in terms of the tangent line and the curve.

asked by Anonymous on April 11, 2013
68. ## ap physics

A 0.461 kg mass is attached to a spring and executes simple harmonic motion with a pe- riod of 0.59 s. The total energy of the system is 2.4 J. Find the force constant of the spring

asked by arabelle on February 21, 2015
69. ## physics

A bullet (m = 0.0290 kg) is fired with a speed of 94.00 m/s and hits a block (M = 2.70 kg) supported by two light strings as shown, stopping quickly. Find the height to which the block rises

asked by Anonymous on May 1, 2009
70. ## Physics

The exterior walls of a house have a total area of 220 m2 and are at 11.9°C and the surrounding air is at 6.7° C. Find the rate of convective cooling of the walls, assuming a convection coefficient of 3.4 W/(m2 · C°).

asked by Tyler on April 11, 2017
71. ## College Math

Suzy has a bag containing 5 red marbles, 2 green ones, 4 white ones, and 3 purple ones. She grabs 9 of them. Find the probability that she does not have all the green ones. Express the answer as a fraction in lowest terms.

asked by Sabrina on April 21, 2009
72. ## Algebra 2

Find a real plynomial equation with real coefficients that has the given roots. 3-2i, 3+2i Should I just make it [x- (3-2i)][x + (3-2i)] then multiply it out and there's my answer? angela, thanks for your help how did you get the 56.80 from my problem.

asked by Angela on December 20, 2006
73. ## Math Help

The length of Joe's rectangular garden is 1 meter less than twice its width, and its area is 120m^2. Find the dimensions of the garden by setting up a quadratic equation and define its variables.

asked by Hal on May 13, 2014
74. ## Math

A engine for a car can be manufactured in a factory every 35 minutes. The factory starts production at 8:45 and stops at 16:55. (i) Find the number of engines that can be produced in a single working day. I really need help on how to do it!!! Please!!

asked by Faith on September 6, 2017
75. ## Cal 2

Find the volume of the solid whose base is the region bounded by the x-axis, the curves y=x, y=3x^2, x=0, and x=.333333 and which has the property that each cross section perpendicular to the x-axis is an equilateral triangle.

76. ## more israel questions

what are the most common chracteristics of native music of israel http://www.google.com/search?hl=en&q=israeli+music+traits You should find lots of information in these sites. =)

asked by Blaine on December 17, 2006
77. ## Math

Using the equation B=p(1+r)^n [B, Balance; p, principal deposit; r, rate; n, number of interest periods]. Find the balance when you have \$17,500 in the bank at 4.25% compounded annually for 6 years. I know the answer but not how to do it.

asked by Christie on February 12, 2015
78. ## maths-Surface aea

if the radii of the circular ends of a conical bucket in the shape of frustum of a cone which is 45cm high are 28cm and 7cm.find the capacity of the bucket in litres

asked by Anonymous on February 21, 2013
79. ## Satatstics

Assume that a random sample is used to estimate a population proportion p. find the margin of errror E that corresponds to the given statistics and confidence level n= 550, x=165, 90%confidence

asked by Heather on November 16, 2007
80. ## physics

A light, rigid rod l = 5.55 m in length rotates in the xy plane about a pivot through the rod’s center. Two particles of masses m1 = 9.8 kg and m2 = 2.4 kg are connected to its ends find the moment of inertia

asked by d on February 12, 2015
81. ## Science

Two unlike vertical forces of 10N and Q N act at apoint A and be respectively where AB is horizontal and the length of 3m . The resultant of the 2 forces is a force of P N which acts at a point of X on the line of BA reduced such that AX is 4.5m.find P and

asked by Anonymous on January 14, 2014
82. ## cjs 200

I am suppose to provide statistice for crime and population in at least 2 prisons in my area. I have tried the missouri department of corrections website and various search phrases and cannot find anything. any suggestions on phrases? thank you

asked by sutton on February 7, 2011
83. ## History

Is anyone available to help me? I need to create a metaphor to describe the structure of our federal government The example they provided is "The American Government is a tripod; without each post, it would collapse." I can't find anything that fits very

asked by Abby on October 1, 2015
84. ## physics

a 2575 kg van runs into the back of a 825 kg compact car at rest. They move off together at 8.5 m/s. Assuming no friction with the ground, find the initial speed of the van.

asked by Nilan on February 7, 2011
85. ## very complicated maths

Hey guys, need some help with a question ive been stuck on for a looooooong time! The question is: Given that (x+4) is a factor of the expression 3x^3+x^2+px+24, find the constant value of p. Hence factorise and solve the equation 3x^3+x^2+px+24=0 Any

asked by Nikki Clark on November 21, 2012
86. ## Probability

three fair dice are tossed. Let X,Y,Z denote the respetive numbers showing on their top faces. Assume X,Y,Z are independent. a) find P(X

asked by Danny on November 18, 2007
87. ## Calculus Help Please!!! Urgent!!!

If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a proper fraction that is completely simplified as much as possible. d^2y/dx^2= -6x/y^5 (this is the answer I should get but i don't

asked by Tim on April 9, 2014
88. ## calculus

use the method of cylindrical shells to find the volume of the solid obtained by rotating the region bounded by the given curves about the x-axis. sketch the region and a typical shell. x=1+y^2, x=0, y=1, y=2

asked by confusing on September 8, 2013
89. ## calculus

Find the asymptote, interval of monotonicity, critical points, the local extreme points, intervals of concavity and inflection point of the following functions. Sketch the graph. a)f(x)=|x2 +x-2|

asked by Aky on February 27, 2014
90. ## physical sciences

plan,design and conduct an investigation to find out wether the amount of heat produced will depend on an increase on the concentration of HCL when HCL reacts with an excess Zn

asked by machata rilinde on April 28, 2013
91. ## calculus

Find the asymptote, interval of monotonicity, critical points, the local extreme points, intervals of concavity and inflection point of the following functions. Sketch the graph. f(x)= x^2-6x/(x+1)^2

asked by Aky on February 27, 2014
92. ## Science

In my US History Unit test number 15 says how do layers B & D compare in age if rock layers between be and D have eroded away what is the boundary between be and D called? I cannot find a graph related to this question

asked by Sshh on January 19, 2016
93. ## physics

How do I use Newtons second law of motion to find tension on a rope? The rope is holding a gymnast that has a mass of 48.5 Kg, am i correct in calculating her weight as W= M(48.5) * a (9.81 - the force of gravity) = 475.8N?

asked by kans on September 16, 2018
94. ## Chemistry

I was given extra credit to find who Le Châtelier's High School Principal was. Not his PrincipLE, but his PrincipAL. My chemistry teacher told us only one student of his out of all these years came with the answer. Think outside of the box. Thanks.

asked by John on March 11, 2013
95. ## Math-Algebra 1

The price of a gallon of unleaded gas has dropped to \$2.80 today. Yesterday's price was \$2.87 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.

asked by EmilyS. on July 15, 2011
96. ## Calculus

Find a formula for the fourth degree polynomial p(x) whose graph is symmetric about the y-axis (meaning it has no odd powers of x), and which has a y-intercept of 10, and global maxima at (3,253) and (−3,253).

asked by Dana on April 7, 2013
97. ## Geometry

Find the missing numbers for the dimensions and measures of a rectangular prism... Length 5 m Width ? Height ? Surface Area 94 m to the second power Volume 60 m to the third power Please answer the one's with a ?. Thank you.

asked by Susie on December 9, 2013
98. ## physics

Find the net torque on the wheel in the figure below about the axle through O perpendicular to the page, taking a = 11.0 cm and b = 23.0 cm. (Indicate the direction with the sign of your answer. Assume that the positive direction is counterclockwise.)

asked by Anonymous on April 30, 2012
99. ## B-Tech mechanical

At a point in a strained material the principal stresses are 60MPa and 40MPa. Find the position of the plane across which the resultant stress is most inclined to the normal and determine the value of this stress.

asked by Ravi on February 14, 2014
100. ## physics

A projectile is fired from the ground level with initial velocity of 90m/s at an angle of 36degre from horizontal. find the magnitude and direct of projectile 5 secs after firring

asked by Anonymous on February 6, 2010