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

97,722 questions, page 563
1. ## Physics

A very strong 100kg man is having a tug-of-war with a 1500kg elephant. The coefficient of static friction for both on the ground is 0.9. Find the force that would be needed to move the elephant.

asked by RJ on October 16, 2012
2. ## maths

Given the the instantaneous voltage across a capacitor is VC=40(1-e -t/CR) Volts When being charged by a 40 volt DC supply, find the time, t for VC to reach 18 volts after the charging process has started if C = 100ìF and R = 20kÙ

asked by Rachael on March 22, 2013
3. ## calc

Find the derivatives of the following functions using the differentiation rules. f(x)=(x^3-2x^2+x+1)(sqrt(x)-3x+9) I did: f'(x)=[x^3-2x^2+x+1][(1/2x^(-1/2)-3]+[x^(1/2)-3x+9][3x^2-4x+1] which I got to be

asked by Anna on September 27, 2010

A particle travelling in a straight line with constant acceleration and starting from rest covers 36m in the 5th second.Find the acceleration and the distance traveled in the 6th second

asked by JIKU on February 26, 2017
5. ## Applied Calculus......

Under a set of controlled laboratory conditions, the size of the population of a certain bacteria culture at time t (in minutes) is described by the following function. P=f(t)=3t^2+2t+1 Find the rate of population growth at t = 9 min.

asked by Jacob on February 7, 2013
6. ## Chemistry

4Al + 3O2 = 2Al2O3. If 41.5 g aluminum and 69.0 g oxygen undergo a reaction that has a 67.0% yield, What mass of aluminum oxide forms. Please help by showing steps to find answers. Thanks

asked by Pamela on July 17, 2011
7. ## Algebra

find the unit rate for number of parts manufactured per hour if 1630 parts are made in 6 hours. round to the nearest integer. SHOW ALL WORK.

asked by Amber on November 28, 2010
8. ## math

For a normal distribution with mean of 80 and a standard deviation of 8, find the number of standard deviations the raw score 67 is from the mean (Give answer as a positive value rounded to nearest hundredth).

asked by Sam on July 19, 2017
9. ## Physics

A compact car, with mass 725kg, is moving at 115km/h toward the east.....find the magnitude and direction of it's momentum. Draw an arrow on your sketch showing the momentum

asked by Desmond on January 28, 2015
10. ## Physics (Projectile Motion)

Please reply to this one urgently: Horizontally moving plane at 600kmph speed, at a height of 1960km, drops a package at point A and it drop at point B. Find the distance between A and B.

asked by Lost In Studies on September 28, 2010
11. ## Finance

A company issues a 6-year bond with a face value of 5,000 and semi-annual coupons payments of \$275. If the yield rate is 7%, find the price of the bond.

asked by Kim on November 28, 2010
12. ## hinkley

Sam Sounds received a \$290 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dollars and the proceeds for the following problem.

asked by carla on April 21, 2015
13. ## MATH

all 500 students at robinson junior high were surveryed to find their favorite sport how many more students played football than basketball? a. 325 b. 135 c. 190 d. 55

asked by hi on March 2, 2019
14. ## chemistry

how do I write this equatio out and is it stoichiometry problem. Find the mass of sodium hydroxide needed to neutralize enough nitric acid to create 2.0 gram of sodium nitrate?

asked by Tosha on November 30, 2010
15. ## math

One card is selected at random from an ordinary set of 52 cards. Find the probability of each of the following events: d. A jack is not drawn would the answer be:48/52 since you subtract 4 from 52 for the four jacks and simplify to get 12/13 or do you say

asked by crystal on April 20, 2010
16. ## Biology

Please Help. In the Cardiovascular system of a rat, what would you label on a dissection paper, the heart, spleen, blood and blood vessels? That's what I'm showing in my notes but can't find a web site. Thanks

asked by Mike on November 23, 2009
17. ## Math

The distance around the Earth at the equator is about 40074 kilometers find the equatorial diameter of Earth to the nearest kilometer A.12,762 Km B.25,512 Km C.62,884 km D 6,339,700 Km

asked by Applesuace Master on April 19, 2016
18. ## geometry

I have a triangle ADB. AD = 2, AB = 3 DB is x. I need to find x. Additional info. AB/BC = BD/BD = AD/BD. Other triangle is DCB. DB is x, DC is 8, CB is y. Booth of triangles are connect by DB. Figure resembles a kite. (Needed to complete 3/y =x/x= 2/x. Is

asked by robin on April 20, 2015
19. ## Polar, Cylindrical, and Spherical Coordinates

Let C be a circle that passes through the origin. Show that we can find real numbers s and t such that C is the graph of r = 2s*cos(theta + t) I think that I could start by writing it like R^2=(x-h)^2+(y-k)^2 where R is the radius of the circle, but I

asked by Katie on April 19, 2016
20. ## Calculus

A particle moves along line segments from the origin to the points (3, 0, 0), (3, 3, 1), (0, 3, 1), and back to the origin under the influence of the force field F(x, y, z) = z2i + 2xyj + 3y2k. Find the work done.

asked by Anon on November 23, 2016
21. ## physics

cheetahs, the fastest of the great cats, can reach 45 mph in 2.0 s starting from rest. assuming that they have constant acceleration of 33 ft/s throughout that time, find the distance (in ft) they travel during that time.

asked by Anonymous on September 28, 2017
22. ## 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 Ayk on February 28, 2014
23. ## Art History

The question says "Review what you learned about Stonehenge and the cave paintings that were found in Spain by the two boys. Which is a greater achievement of these time periods?" Who are the two boys? I can't seem to find anything about them in my

asked by Kylee on February 28, 2014
24. ## science

The radius of the Earth is approximately 3,960 miles. Find the approximate surface-area-to-volume ratio of the Earth. A. 0.00025 B. 0.00076 C. 1,320 D. 11,880

asked by emma on July 10, 2013
25. ## Physics

A disc of radius 50.0cm is rotating at 120 rpm, and its angular acceleration is 3.00 rad/s^2. Find the magnitudes of the velocity, v, and tangential acceleration, a, of its outer edge.

asked by Bill on October 9, 2009
26. ## physics

Imgaine that a cart intially moving with velocity V_0, collides with a cart at rest and then the two carts stick together. Find a equation for potential energy in this case.

asked by Chris on October 17, 2011
27. ## Physics

An air craft is traveling due north with avelocity of 100 m/s, astrong wind blows from the west with avelocity of 25m/s find resultant velocity

asked by Wende on March 30, 2017
28. ## College Algebra

Consider the following Matrix: A= [-2 0 1 -1 -2 1 1 -1 0 ] Choose the correct description of A. Find A−1 if it exists. Multiple Choice homework question: 1) A is Nonsingular; that is, it has an inverse. A^-1= 2) A is singular; that is, its inverse

asked by Moses on February 1, 2017
29. ## Statistics

The weights of adult males are normally distributed with a mean of 172 lb and a standard deviation of 29 lb. 1.Find the weight that divides the upper 2% of weights from the lower 98%. Can anyone please explain how to do this,I have no idea from where to

asked by Plzz helpp on March 8, 2011
30. ## Precalculus

Let C be a circle that passes through the origin. Show that we can find real numbers s and t such that C is the graph of r = 2s*cos(theta + t) I think that I could start by writing it like R^2=(x-h)^2+(y-k)^2 where R is the radius of the circle, but I

asked by Katie on April 18, 2016
31. ## Math

Sam Sounds received a \$320 discount loan to purchase a stereo. The loan was offered at 16% for 90 days. Find the interest in dollars and the proceeds for the following problem.

asked by Hannah on May 20, 2014
32. ## math

The following rational function describes blood concentration of a certain drug taken via IV over time: f(x)=x+1/x Find: a.the horizontal or oblique asymptote(s), if any, b.the vertical asymptote(s),if any, c. describe their possible meanings. Can somebody

asked by cindy on April 10, 2013
33. ## History

What was the background of many women who became leader in social reform movements? I have tried to answer this question but I couldn't find the answer in my textbook. I don't mean to cheat, but it would be very helpful to get a little more information.

asked by Saer on March 2, 2016
34. ## Statistic

A Toyota dealer wants to find out the age of their customers (for advertising purposes). They want the margin of error to be 3 years old. Suppose the sigma is 13 years old. If they want a 90% confidence interval, how many people do they need to know about?

35. ## maths

find the total amont to be paid if :- (i)one rain coat of rs.300,vat@10% (ii)one pair of shoes of rs.460,vat@9% (iii)clothes of rs.800vat@1% are purchased.

asked by shrestha tejaswi on September 30, 2013
36. ## Calc

find absolute max and min of f(x)=cosx+sin^2(x) on interval [0,2pi]. Give exact answers, not decimal approx. (Use closed interval method)

asked by Anonymous on October 22, 2014
37. ## math

Thw total cost of a meal at a banquet hall is \$20 per person plus a \$500 charge for renting Suppose the total was \$2160 find the number of guests?

asked by Nick on October 18, 2011
38. ## chem

Aluminum hydroxide and sulfuric acid neutralize to make water and aluminum sulfate. the first step i have done: Al(OH)3 + H2SO4 -> H2O + Al2(SO4)3 i find this one confusing XD

asked by hannah on November 22, 2010
39. ## algebra II

The following rational function describes concentration in blood of a certain medicine taken once depending on time, find a. the horizontal or oblique asymptote(s), if any, b. the vertical asymptote(s), if any, c. describe their possible meanings.

asked by Kristen on March 3, 2015
40. ## alg 2

Two trains whose rates differ by six miles per hour start at the same time from stations that are 273 miles apart. They meet in three and a half hours. Find the rate of each train.

asked by joe on September 25, 2016
41. ## physics

two identically charged sphere of mass 3 gm each are suspended from a point by threads of length 13 cm. they are separated 10 cm due to repulsion. find the tension of the thread and charge on the sphere?

asked by Anonymous on April 15, 2015
42. ## Pre-Calculus

The question is "Find parametric equations for the line with the given properties: Slope -2, passing through (-10, -20)." I don't even know where to begin, or what to do. Please help! This is an example problem, not the main homework problem, I just need

asked by James on January 25, 2016
43. ## math

Find the volume in the figure. The figure is in the website below. If necessary, round to the nearest hundredth. Use 3.14 for π. (Assume d = 9 in.) . www.webassign.net/aufbcm9/12-4-006-alt.gif

asked by Anonymous on December 5, 2018
44. ## Physics

A net force of 75 lbs acts on a body of mass 25 slugs which is initially at rest. Find its acceleration. How fast will the body be moving 12 seconds later? Please indicate the formula used.

asked by Maria Ellah on February 2, 2012
45. ## Math

A boat, which moves at 18 mph in still water, travels 14 miles downstream in the same amount of time it takes to travel 10 miles upstream. Find the speed of the current.

asked by Antione on July 27, 2011
46. ## Information technology

Write an algorithm,flowchart,pseudo cod and finally a c++ code that will accept exam score for five users and find the average,minimum and maximum of the score

asked by Mawuyram on February 12, 2017
47. ## Differential calculus

A ladder 20 ft long leans against a vertical wall, If top slides downward at the rate of 2 ft/sec, find how fast the lower end is moving when it is 16 ft from the wall.

asked by Mohammed on November 26, 2016
48. ## math

A culture starts with 8300 bacteria. After one hour the count is 10,000. (a) Find a function that models the number of bacteria n(t) after t hours. (Round your r value to three decimal places.)

asked by Julia on November 6, 2015
49. ## math probability

One card is selected at random from an ordinary set of 52 cards. Find the probability of each of the following events: d. A jack is not drawn would the answer be:48/52 since you subtract 4 from 52 for the four jacks and simplify to get 12/13 or do you say

asked by crystal on April 20, 2010
50. ## Earth Science

Unlike most road maps, topographic maps can be used to find 1: the best route to a town 20 km away. 2: the temperature at any place on the map 3:the elevation above sea level. 4:the distance between two locations

asked by Kelly on October 7, 2014
51. ## Geometry HELP

Find the area of the parallelogram. (base(s)=10cm, slant/side length(s)=6cm, h=? and the angle measure is 60degrees. a.)15âˆš3 cm^2 b.)30âˆš3 cm^2 c.)15âˆš2 cm^2 I think it's 30âˆš3 cm^2.

asked by Ariel on June 10, 2010
52. ## ethics in technology

discuss the legal protections related to copyright, trade secracy, and patents. Include an example where legal protection has been enforced... where can i go to find more information to answer this question!!

asked by breeamberr on February 4, 2015
53. ## Physics

How do you find the ratio of the new/ old world periods of a pendulum if the pendulum wee transported from earth to the moon, where the acceleration due to gravity is 1.63m/s^2? Im not sure if we use 9.8 at all, I think I'm supposed to use T=2 pi sqrtL/g.

asked by cris on December 10, 2012
54. ## physics

A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5.0 m, B= 15 m, and C = 18 m. Using the component method, find the magnitude and direction è of the resultant

asked by james on February 8, 2013
55. ## physics

Two objects are positioned and moving . m 1 = 7 kg ,m 2 =11 kg, and the coefficient of kinetic friction between object 1 and the tabletop is uk = 0.14. Find the acceleration of object 2(assuming up is the positive direction) as well as the tension in the

asked by Mary on October 18, 2016
56. ## Calculus

Find the partial derivatives of f(x,y)=(sinx + y)^(y sinx)

asked by Shaniquaa on December 4, 2008
57. ## Poly

Find the indicated limit, if it exists. -4 -12 -8 The limit does not exist.

asked by Gail on May 7, 2015
58. ## trig

how do i find six trig functions for cos(pi over 2-x)=3/5, cos x=4/5?

asked by Anonymous on October 19, 2010
59. ## math

find r from the formula a=pie rl when pie= 3.142, a= 96, and i=12

asked by luis on September 6, 2010
60. ## statistics

5. Find the weighted mean of the following two samples. Sample 1: n = 5 and the mean = 20 Sample 2: n = 15 and the mean = 10.

asked by shanice on October 10, 2013
61. ## Math

M partly varies as N and is partly constant. When M=2,N=3,when M=4,N=2.find M when N=1

asked by Fatiah on October 14, 2018
62. ## Arithmetic Series - - Reiny

Consider the series defined by Sn = 3n-1 Find the first four terms of the series. How exactly do I do this?

asked by Anonymous on September 12, 2011
63. ## math

Find the value of this integer expression: − 2(+ 3 +− 4 +− 8 ++ 7) . With Distribution and without Distribution.

asked by you know it on November 9, 2018
64. ## Maths

Y is partly constant and partly varies as x...if y=2 x=4 and when y=5 x=8....find y when x=9

asked by Edward on August 23, 2018
65. ## College Algebra

The sum of two numbers is 10. One number is five less than twice the other. Find the two numbers.

asked by Anonymous on August 30, 2017
66. ## geometry

find the distance points of each pair of points 12.G(0,0),H(-3,4) 13.N(5,2),K(-2,8) 14.A(-4,-4),W(-2,2)

asked by sequoia on September 25, 2011
67. ## Physics

Find the projection of vector A=i-2j+k onto the direction of vector B=4i-4j+7k

asked by Devin Darkie on June 11, 2013
68. ## math

Find 1 terminating decimal and 1 repeating decimal between 1/2 and 2/3.

asked by help on October 21, 2014
69. ## trig

Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm

asked by Abigail on April 16, 2008
70. ## Mathematics

s=a+b+c/2 solve for b the correct answer is b=2s-a-c I would like to know how this answer came up how do I find b

asked by Anonymous on September 14, 2011
71. ## Math

The sum of two numbers is 83. The difference is 11. Find the two numbers.

asked by The Doctor on June 7, 2014
72. ## Calculus

find the derivatives of the given functions. g(t)=sqrt t(1+t)/t^2 the sqrt is just over t.

asked by Mike on February 4, 2013
73. ## algebra

Three subtracted from 4 times a number is 17. Find the number.

asked by eudora on February 18, 2016
74. ## Math

How do I find the dimensions of new box?? Original box is 2 by 6 by 4

asked by Rolis on September 27, 2011
75. ## Math

Find the point on the line 7x+1y−2=0 which is closest to the point (−1,−3).

asked by Anonymous on March 7, 2017
76. ## Pre-Calculus

Given Sin(A) = ⅗ and Cos(B) = 8/17 in Quadrant I, find Cos(A+B).

77. ## Pre-Calculus

Given Sin(A) = ⅗ and Cos(B) = 8/17 in Quadrant I, find Sin(A+B).

asked by Iris on October 6, 2016
78. ## Calculus

Find the limit limit as x approaches 1 of (2-x)^3tan[(pi/2)x]

asked by Mely on July 25, 2010
79. ## Calculus

Find the area between the curves y=(x^3)-10(x^2)+24x and y=(-x^3)+10(x^2)-24x

asked by Hannah on October 22, 2010
80. ## calculus

Find the limit limit as x approaches 1 of (2-x)^3tan[(pi/2)x]

asked by Mely on July 25, 2010
81. ## algebra word problem

the difference between 2 numbers is 24. find the numbers if their sum is 88

asked by brian on October 4, 2010
82. ## Geometry

In a triangle, we have line QR parallel to line ST, PQ = 8, QS = 6, and PT = 12. Find PR.

asked by Harry on March 29, 2015
83. ## Maths (factor theorem)

9x^2 6xy 4y^2 is a factor of 27x^3 - 8y^3, find the other factor.

asked by Francis on July 18, 2014
84. ## math

find D from the formula C= pie D WHEN pie= 3.142 and c= 27

asked by jake on September 6, 2010
85. ## Math

Two numbers whose are in the ratio 4:3. Their sum is 70. Find the numbers.

asked by Ashley on January 20, 2016
86. ## Calculus

The figure is an invertible function . Use the figure to find the following: ƒ−1(-3)= ƒ−1(-2)= ƒ−1(-1)=

asked by Mitch on August 28, 2012

Find the product. -3m(m+8) A.-3m^2+42 B.-3m^2-24m C.-24m^2 D.-4m+5 Is the answer B??

asked by gwen on May 13, 2015
88. ## limits

use f'(x)=lim h-->0 f(x+h)-f(x)/h to find the limit: h-->0 sin^3,4(x+h)-sin^3,4x/h

asked by Cassy on March 23, 2010
89. ## math

if x=2y+6 find the value of x cube-8y cube -36xy-216

asked by maths prob on August 14, 2017
90. ## math

i am number between 35 and 45 i am completely divisible by 13 find the number

asked by yash on April 3, 2015
91. ## Algebra

(-1,4) and (5,8) is (x1,y1) and (x2,y2). The slope is m=(y2-y1)/(x2-1). Substitute and evaluate to find the slope.

asked by Michelle on September 19, 2011
92. ## Math

The sum of a number and its reciprocal is 37/6. Find the number.

asked by Keonn'a on November 8, 2018
93. ## Calculus

Give an appropriate answer. Let lim x→6 f(x)=81. Find lim x→6 4^√f(x).

asked by tony on September 22, 2013
94. ## geometric sequences

I can not find the missing term 81 54 _ _ _ not seeing the missing terms.

asked by karen on August 31, 2012

Pentagon ABCDE ~ Pentagon FGHIJ. Find BC for GH =12, IJ = 15 and DE = 10

asked by randomchik on October 4, 2012
96. ## math

How do I find the numbers adding up to 58 if one of those two numbers is greater by 24?

asked by Gene on October 22, 2012
97. ## Geometry

In quadrilateral ABCD, we have AB = BC = CD = DA, AC = 14, and BD = 48. Find the perimeter of ABCD.

asked by Sheenybeany on June 3, 2014
98. ## Algenra 1

Given h(x)= x^2-5x+7, find the following. a. h(-5) The answer I have is 57. b. h(2) The answer I have is 1. Are my answers correct?

asked by Stephon on October 1, 2017
99. ## math

Find the point on the line 7x+5y−8=0 which is closest to the point (−1,−1).

asked by Ramin on October 24, 2017
100. ## vocabulary concepts facts

to find half of a number the number by2

asked by fernando lundy on September 12, 2011