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

97,722 questions, page 525
1. ## Math

Find the sum of the interior angles of a nonagon. (1 point) 140° 1,620° 1,260°------ 1,450° My teacher showed this question and she explained the answer was the 3rd one but i just don't get it

asked by RaNdOm PeRsOn on February 25, 2015
2. ## Mechanics

An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2

asked by Precious on February 14, 2013
3. ## Mechanics

An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2

asked by Precious on February 14, 2013
4. ## physics

a 15gram bullet moving at 300m/s pass through z 2 cm thick sheet of foam and emerges with a speed of 90m/s find average force impeded its motion through the plastic.

asked by yonas on February 19, 2012
5. ## Science- Astronomy

Suppose we find a planet in another solar system that has an earth like atmosphere with plentiful oxygen but no life of any kind. Question= Is this discovery considered reasonable or surprising can you please explain? Thank you

asked by Junior on October 22, 2014
6. ## physics

a man pushes a lawnmower 50ft in 5s by exerting a force of 30lb at an angle of 53degrees with the horizon. find the work done and the average power expended in horsepower. Answer Please need help

asked by k on September 26, 2016
7. ## math

a large piece of cadboard, 5cm by 8cm to be made by cutting out sqaures in each corner. find dimensions that will maximize the volume? vol= (8-2w)(5-2w) (w) answer= 1cm and 10/3 cm is this correct?

asked by Andy on March 29, 2015
8. ## Calculus

Use two rectangles of equal width to estimate the area between the graph of f(x) = x - cos(πx) and the x-axis on the interval [1, 5]. Evaluate the function at the mid-point of each rectangle to find each height. a) 8 b) 12 c) 16 d) 20 thank you in

asked by Alice on January 12, 2019
9. ## Algebra

Tom bowled 135 and 145 in his two first games. Write and Solve a compound inequality to find the possible values for a third game that would give him an average between 120 and 130, inclusive.

asked by Kayley on October 22, 2014
10. ## statistics

Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 400 and a standard deviation of 100. Find the probability that a student will score over 500.

asked by Kelly on December 18, 2011
11. ## science

An object 2cm high is placed 20cm in the front of convex mirror of focal length of 10cm.So,that it is perpendicular to the principal axis.Find the poition and the size of the image.

asked by Anonymous on January 6, 2018
12. ## English

It's more of a survery question where I need to ask people how they feel about advertising... Then write 250 words about it. When an author (like on T.V., newspapers, magazines) uses the word 'you' throughout the article. Do you find the second person more

asked by Tess on September 4, 2007
13. ## statistics

use the given information to find the minimum sample size required to estimate an unknown population mean. Margin of error/; \$137, confidence level:99%, standard deviation = \$535

asked by susan on July 24, 2011
14. ## chemistry

When you add 0.567 g of sodium metal to an excess of hydrochloric acid, you find that 5890 J of heat are produced. What is the enthalpy of the reaction as written below? 2Na(s)+2HCl(aq)=2NaCl(aq)+H2(g)

asked by lex on April 13, 2016
15. ## Biology

In which of the following environments would you be most likely to find non-vascular plants: in desert soil, near the snow line on a mountain, on a sandy ocean beach, or on the forest floor? Give reasons for your answer.

asked by Emily on September 19, 2010
16. ## Calculus 2 II

integral from 0 to 1 of x-4/(x^2-5x+6) I do believe we can integrate with partial fractions, and I should factor it in order to create a linear case 1 thingy so then, it will be: x-4/(x-2)(x-3) After that, I will find the value of a/(x-2) + b/(x-3). But I

asked by Hanky7 on February 25, 2015
17. ## physics

An object has a mass of 2kg and rests on a surface where the coefficient of friction is .2. (a) Find the acceleration of 10 m/sec squared (b) Assume Vi=0, how long does it take to travel 100m? (c) What is the velocity at this time?

asked by Elise on February 2, 2011
18. ## Biology

asked by Collee2 on October 9, 2017
19. ## Implicit Differentiation

Find the slope of the tangent line to the curve (a lemniscate) 2(x^2+y^2)^2=25(x^2–y^2) at the point (–3,1) . I know that we are supposed to use chain rule for this problem but i think i am messing up on the algebra. Can someone please help me, i keep

asked by jasmineT on February 18, 2012
20. ## us history

What was the society of south circa 1840? I was doing some flash cards for us history and this was one of the vocab terms. I couldn't find anything about it in my textbook, notes, and met a similar difficulty while trying to look for it on the internet.

asked by Chrys on November 25, 2012
21. ## Physics 101

The systemis in equilibrium and the pulleys are frictionless and massless. |_________________________| l l l ( . ) l / \ | / \ ( . ) 8kg | I 2kg ( . ) | / \ | I 6kg ______V____I____________________ _________________________________| Find the force T. The

asked by physics on November 8, 2011
22. ## Trig

I need help, I don't remember what to do. Find all solutions of the equation in the interval [0,2pi]. (2cosè+sqrt3)(cscè+1)=0 Write your answer in radians in terms of pi. If there is more than one solution, separate them with commas.

asked by Rachal on May 14, 2011
23. ## math

a seismoraph 300km from the epicenter of an earthquake recorded a maximum amplitude of 5.4 x 10^2um. Find this earthquakes magnitude on the Richter Scale. (Round your answer to the nearest tenth). M=

asked by CLara on November 3, 2012
24. ## Math

Find the periodic payment that will amount to the given sum under the given conditions: S=\$150,000; interest is 6% compounded semiannually; payments are made at the end of each semiannual period for 11 years.

asked by Jeff on November 7, 2010
25. ## Calculus

I don't know how to go about this question. The number of elephants in a park is estimated to be p(t)=7500/(1+749e^-0.15t) Where t is the time in years and t=0 corresponds to the year 1930. Find the inverse p(t) and the interpretation of that.

asked by Lilly on January 28, 2016
26. ## Math: Calculus

Find the smallest positive value of which satisfies -- x=4.100cos(2.800x) Give the answer to four places of accuracy._________ Remember to calculate the trig functions in radian mode.

asked by REALLY NEED HELP!!!! on November 4, 2010
27. ## probability

1. The time it takes a student to cycle to school is normally distributed with a mean of 15 minutes and a variance of 2. The student has to be at school at 8.00a.m. At what time should the student leave her house so that she will be late only 4% of the

asked by tan on April 10, 2011
28. ## Math

The table shows Marco’s checking account activity for the first week of June. a. Marco wants his total deposits for the month of June to exceed \$1,500. Write and solve an inequality to find how much more he needs to deposit to meet this goal. b. Marco

asked by jiskha on October 21, 2015
29. ## statistics

A sample of 65 night-school students' ages is obtained in order to estimate the mean age of night-school students. x bar = 25.2 years. The population variance is 28. (a) Give a point estimate for ì. (Give your answer correct to one decimal place.)

asked by haley on May 14, 2015
30. ## ETHICS

HELP! This is my assignment(below) and i can't seem to get started I need help, can anyone point me in the right direction? Write a 1,050- to 1,400-word research paper identifying the linguistic, political, social, economic, religious, and familial

asked by Danielle on May 7, 2007
31. ## Math

All numbers in our real number system are the product of prime numbers. Complete the following steps for this discussion: 1. List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was

asked by Tammy on March 28, 2013
32. ## math

1.The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6)

asked by mo on May 21, 2018
33. ## jis social studies

feature of konark You may find the features and other infomration about Kornark at: Sun Temple Konark http://konark.nic.in/index.htm The Sun Temple at Konark http://www.templenet.com/Orissa/konark.html Konark, Konark Tourism, Tourism in Konark, Konark

asked by nawaf on July 17, 2007
34. ## english

where can i find some reason to support this opinion "high schools should not only prepare students for college, they also need to help them prepare future possibilities."

asked by 000 on December 13, 2010
35. ## Calculus

Solve the IVP {y'=-(sinx)y + xexp(cosx) y(0) = 1 Please show me step by step. Do I need to find out if this is exact? Do I use an integrating factor?

asked by Ella on October 7, 2009
36. ## physics

a 650 lb box is hanging by means of two ropes attached to a ceiling as shown by diagram below find the tension on the ropes

asked by catherine on September 6, 2010
37. ## statistics

Find the indicated z score. The graph depicts the standard distribution with a mean 0 and standard deviation 1. 0.945 My answer is 1.6901 but I am not sure if it is correct.

asked by angela on November 8, 2013
38. ## math

The velocity function is v(t) = t^2 - 6 t + 8 for a particle moving along a line. Find the displacement and the distance traveled by the particle during the time interval [-1,6].

asked by Anonymous on February 2, 2011
39. ## maths

A wheel revolves 1254 times in travelling a distance of 2kms 5 hectometers and 8 meters .find the circumference of the wheel .

asked by kumar on November 30, 2018
40. ## physics

A small toy car is moving around a circular path once in every 8 sec. The radius of track is 3m. find speed of car.

asked by Anonymous on June 12, 2010
41. ## maths

A train driver moving at 40km|h applies break so that there is a constant retardation of 0.5m|s find time taken before the train stops

asked by mary on April 13, 2016
42. ## math

A tie pin which sells for \$200.00 has a markup rate of 30% on the selling price. Find the amount of the markup and the cost.

asked by lydia on November 19, 2009
43. ## math

in a rectangular field adjacent sides differ by 17 cm.its diagonal length is 25 cm.find the cost of fencing the field at rs 5 per metre

44. ## geometry and mensuration

a bicycle wheel hasa daimeter of 63cm.find the circumference,distance the wheel travel in 1000 revolution

asked by olayinka on January 29, 2019
45. ## Math

Find the loss percentage if Banrap incurred a loss of RS. 310 when he sold cosmetic for RS. 1550. (In book answer is given as 25%.)

asked by Deepak on August 1, 2018
46. ## Math

Belinda used her calculator to find the decimal for the fraction 21/28, When she entered 21/28 the calculator gave an answer that looked familiar. Why do you think she recognized it.

asked by Eli Nelson on November 13, 2015
47. ## Math

Of 20 scores, 19 are less than or equal to 10. Find the percentile rank of 10. They don't give you the exact number of tens so i don't really know how to do this? Could someone please explain?

asked by Angela on September 23, 2015
48. ## Math

Find the future amount after one year on \$ 2,000 at 5% compounded annually. (a) \$ 200 (b) \$ 100 (c) \$ 2,100 (d) \$ 400 (e) \$ 550.00

asked by Frank on November 3, 2011
49. ## Geometry HELP

In a rhombus, one diagonal has a length of 10 cm and the area is 120 cm2. Find the length of one side. a.)10cm b.)12cm c.)13cm

asked by Ariel on June 12, 2010
50. ## maths

The smallest of three consecutive integers is added to the largest, the result so obtained is 15 less than 4 times the middle integer. Find the integer.

asked by kratika on June 14, 2012
51. ## pre-alg

In a pattern, the # of colored tiles used in row x is 3 to the power of x. Find the number of tiles used in rows a, 5, & 6. i don't get this problem & could use a little help, plz!

asked by kathryn on December 11, 2007
52. ## Math

Find the radius of a right circular cone if its volume is 1.5 times its lateral area and its radius is half its slant height.

asked by Allison on April 30, 2013
53. ## Physics

The three forces shown in the figure below act on a particle (with F1 = 50.0 N, F2 = 60.0 N, θ1 = 60.0°, and θ2 = 30.0°). If the particle is in translational equilibrium, find F3, the magnitude of force 3 and the angle θ3.

asked by Nerise on February 10, 2013
54. ## college algebra

use the properties of logarithms to find the exact value of the expression loglower 3^18 - log lower3^6 **how do I make the three lower in the log equation?

asked by confused on November 27, 2012
55. ## Physics

A progressive wave equation is given by y=a sin (200(pie)t -(pie)x/17) Find; 1) The wavelength 2) Velocity 3) Frequency 4) Period

asked by Joseph on December 21, 2018
56. ## math

A right triangle has one leg four times as long as the other. Find a function that models its perimeter P in terms of the length x of the shorter leg.

asked by monic on October 5, 2012
57. ## French

Hi, i know this is off topic but i was wondering if you could help find a frech-speaking dictionary that will say any word in frech that i type into the computer, online for free. Thanks:)

asked by Natasha J on June 5, 2008
58. ## math (3)

Find the domain of the function. Write your answer in interval notation. (If you need to enter ∞ or -∞, type INFINITY or -INFINITY.) f(s,t)= sqrt(s^2+t^2) s = ? t = ?

asked by Mia on April 28, 2014
59. ## calculus

A 6-foot man walks away from a 16-foot lamppost at a speed of 5 ft/sec. Find exactly the rate at which his shadow is increasing in length.

60. ## Applied Calculus

Find the absolute maximum and absolute minimum values, if any, of the function. (If an answer does not exist, enter DNE.) h(x) = x3 + 3x2 + 4 on [−3, 2]

asked by Jacob on March 6, 2013
61. ## Math

For the following geometric sequence find the recursive formula and the 5th term in the sequence. In your final answer, include all of your work. {-4, 12, -36, ...}

asked by Sara on September 29, 2017
62. ## physics

You fire a cannon ball from ground level at a speed of 20.0 m/s ∠30.0 Find the time taken for the ball to hit the earth. How far will it land?

asked by axel on January 29, 2015
63. ## Math

A living room measures 450cm by 330cm.Find the dimension of the largest tile that can be used to tile the floor without cutting.

asked by Gina on July 6, 2014
64. ## calculus

Find two positive numbers that satisfy the given requirements: The product is 147 and the sum of the first number plus three times the second number is minimum

asked by Jallah on November 17, 2014

I was asked to: Calculate the d value or effect size for A but use this data instead. A. Group one 12 and group two 11 standard deviation 3 Can anyone please help me figure out how to find the d value. Any help would be great.

asked by Jennifer on November 20, 2014
66. ## math-check my work

I have a bag of m&m's with 52 in it and on the pkg it states it weighs 47.9g. If I divide by 52 it gives me .92g per m&m. To find out what the mass is of a mole of m&m's do I Multiply 6.02 x 10^23 x .92g for my answer?

asked by mk on November 9, 2007
67. ## Geometry

Two Right Triangles have equal acute angles, yet one triangle is larger than the other. Therefore, the triangles much be _________________. I've looked everywhere in my books and on the internet and I cant find it.

asked by Kaite Lynn on May 2, 2008
68. ## 1630

Mr X deposit \$3000 at the end of each semiannual period for 21 years at 8% interest compounded semiannually.Find the amout will have on deposit?

asked by girma on April 17, 2012
69. ## Physics

Only two forces act on an object (mass = 4.20 kg), as in the drawing. (F = 70.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object.

asked by Michelle on June 16, 2010
70. ## Pre Calc

Find the vaule of sec(theta) for angle theta in standard position if the point at (3,-1) lies on its terminal side.

asked by Alex on January 18, 2016
71. ## English

Youngsters find it difficult to ----- the criticism in the peer group what phrase can be added to this sentence put across,take in, make over or put through????

asked by Anonymous on March 23, 2018
72. ## Human Services

Can anyone help me with important items listed in the various policies related to delivery of human services in NY so I can write a paper? I cannot seem to find what these items are.

asked by Linda on April 1, 2009
73. ## Statistics

According to insurance records a car with a certain protection system will be recovered 89% of the time. Find the probability that 3 of 7 stolen cars will be recovered.

asked by sc on May 3, 2012
74. ## physics

Please help! Two charges are placed on the x axis. One of the charges (q1 = +8.71C) is at x1 = +3.00 cm and the other (q2 = -28.6C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and

asked by alex on October 2, 2012

Find the cost of credit in the following loan. Amount of loan: RM 4,450 Number of payments: 24 Monthly payment: 221.

asked by ummu on January 8, 2012
76. ## trigonometry

an isosceles triangle is inscribe in aradius 100 in .find the angles of the triangle if it is base subtends an arc of 143.7 in

asked by jophy on November 28, 2012
77. ## physics - follow up question

so, (3.75)(4) + (.5)(3.75)(49) or 106.875 radians that's not the correct answer, so is it just the second part to find the additional angle? (.5)(3.75)(49) = 91.875 but it too is incorrect, what am I missing?

asked by luc on February 2, 2017
78. ## ellipses

given an ellipse; 2x^2+6y^2+32x-48y+212=0, find center, major axis, minor axis & distance from c to foci?

asked by Amber on March 27, 2013
79. ## Algebra

Two questions I need help with. Find the indicated partial sum using the information given. 1. a3=4/9, a7=9/64, S6 Determine wheater the infinite geometric series has a finite sum 2. 6+ 3+ 3/2 + 3/4 +.... 3. -49 + (-7) + (- 1/7) +...

asked by Becca on April 8, 2013

at time t, the position of a body moving along the s-axis is s=t^3-12t^2+36t m. find the total distance traveled by the body from t=0 to t=3

asked by alfredia mitchell on July 23, 2011
81. ## Mathematics

If the radii of the circular ends of a conical bucket,which is 45cm high,are 28cm and 7cm.Find the capacity of the bucket?

asked by Elsa tony on March 15, 2017
82. ## algebra

Find the zeros of the function. f(x) = 2x^2-2x-1 Use the quadratic equation x= (2 +- sqrt (4+8))/4 x = 1/2 +- 1/2 sqrt 3 check that. the answer would be negative 96 I think respond back if not right

asked by anonymous on January 10, 2007
83. ## Calc III

Find the position vector of a particle that has the given acceleration and the specified initial velocity and position. a(t)= 56t i + sin(t) j + cos(2t) k v(0)= i r(0)= j I need help finding r(t) Thanks so much for your help!!

asked by Emily on May 4, 2012
84. ## Graphing

The line l1 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 Jeffrey on December 31, 2014
85. ## Chemistry

I'm doing measurements & their uncertainty and I can't find this. Does anyone know where I can look? "Percent error is calculated by dividing the _____of the error by the accepted value and then multiplying by _______.

asked by Sue on September 16, 2008
86. ## Math ~ Check Answers ~

Find the circumference of the circle (use 3.14 for pi). Show your work. Round to the nearest tenth. the radius is 23 yd My Answer: ???? •Circumference = (2) (3.14) (23) •3.14 x 2 x 23 = 144.44

asked by Mindy on March 6, 2014
87. ## Physics

The total charge in an electrical circuit as a function of time is given by q=t/t^2+1 coulombs. Find the maximum charge q. Please provide your reasoning.

asked by Liz on May 3, 2012

We're working on geometric and athrimetic series and I really don't know where to start with this except that t sub 1 = 101 How would I find the sum of the multiples of 5 between 101 and 2001 help

asked by Anna- on May 8, 2011
89. ## chemistry

4FeS (s) + 7O2 (g) --> 2Fe2O3 (s) + 4SO2 (g) Entropy value for iron (II) sulfide is 67 J/K mol I don't understand how to find entropy

asked by baehji on January 29, 2015
90. ## Physics

A cannon ball is projected so as to attain a maximum range. Find the maximum height attained if the initial velocity is U.

asked by John on March 14, 2019
91. ## math

A snail crawled for 40 seconds at an average speed of 15 millimeters per second.Explain how to find the distance the snail traveled in centimeters

asked by jacob on April 17, 2012
92. ## Physics

An air-filled parallel plate capacitor has a plate separation of b = 0.58 cm, and an area A = 280 mm2. Find its capacitance

asked by Susie on March 6, 2010
93. ## statistics

Suppose that a coin is tossed 100 times. Let X be the number of times that it shows heads. Find the mean and standard deviation of X.

asked by Mschribe on December 13, 2010
94. ## poetry

What is the poem The Jumblies by Edward Lear about? What words and/or phrases do you find interesting? How is the poem structured? What did he want us to think about? plz help thanks in advance :)

asked by Geoff on October 30, 2008
95. ## Math

Adnan bought at the rate of 40 per dozen and sold at the rate of 4 per egg find percentage of profit if 3 eggs were rotten

asked by Anonymous on July 28, 2017
96. ## Math

An investor puts ​\$700 in an account that pays 2​% interest compounded annually. Find the account balance after 8 years.

asked by hi on March 15, 2019
97. ## physics

A 0.5 Kg mass is supported by a SPRING . The system is set in vibration at its natural frequency of “ 4 Hz “ with an amplitude of “ 5 Cm “ . Find the spring constant .

asked by sand on January 9, 2012
98. ## math

Explain two ways that you can solve for R in the following division statement. Then, use one of your methods to find R. x^3+4x^2-3x=(x-1)(x^2+5x+2)+R could you divide x^3+4x^2-3x by (x-1) to get the quotion of (x^2+5x+2)+ the remainder which would be r?

asked by Matt on July 7, 2016
99. ## Physics

A stone is thrown in the air with an initial velocity of 50 m/s at 37 degrees to the horizontal. Find the total time the ball is in the air.