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

97,722 questions, page 571
1. ## calculus

Marine ecologists estimate the reproduction curve for swordfish in a fishing ground to be f(p) = −0.01p^2 + 8p, where p and f(p) are in hundreds. Find the population that gives the maximum sustainable yield, and the size of the yield.

asked by aj on March 4, 2018
2. ## Math

The demand function for a product is p=24−3q where p is the price in dollars when q units are demanded. Find the level of production that maximizes the total revenue and determine the revenue. Q=______units R_______

asked by George Carl on February 27, 2018
3. ## physics

An object place 5cm in front of a converging lens of focal lenght 10cm produces a magnified image 8cm.find the size and the position of the image

asked by Abdulrazaq on March 20, 2012
4. ## maths-perimeter

A Rectangular field 750m long and 450m broad has in the middle of it , road 5m wide running at right angles to each other , one long the length and the other along the breadth . Find the area of the path

asked by anoynomous on March 6, 2013
5. ## statistic

In a survey, 3 of 4 students said the courts show "too much concern" for criminals. Find the probability that at most 3 out of 7 randomly selected students will agree with this statement. Round your answer to the nearest thousandth.

asked by miyah on October 22, 2017
6. ## physics

"Only two forces act on an object (mass = 3.90 kg), as in the drawing. (F = 76.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object. " (The angle is 45 degrees and the horizontal force is 40N)

asked by Allie on April 20, 2012
7. ## Early Childhood

Small group discussions with preschoolers enables them to: A. find out if they are superior. B. learn to argue. C. outsmart the others and gain teacher attention. D. compare their ideas with peer ideas.

asked by cynthia on February 19, 2015
8. ## physics

Two pellets, each with a charge of 0.80 microcoulomb (8.0×10−7 C), are located 4.0 cm (4.0×10−2 m) apart. Find the electric force between them, which I solved for 3.6 N. I am stuck on the next part: What would be the mass of an object that would

asked by Christy on April 17, 2012
9. ## Calculus

The following rational function describes concentration in blood of a certain medicine taken once depending on time, find: A) the horizontal or oblique asymptote B) the vertical asymptote, if any C) describe their meanings f(x)=x/x^2-100

asked by Wendy on August 14, 2015
10. ## College Math

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.3 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)

asked by Yvonne on April 16, 2012
11. ## check my set up please

At a horizontal distance of 34 meters from the base of a tower, the angle of elevation to the top is 72 degrees. Find the line of sight distance to the nearest meter. I set this up tan72=x/34

asked by Anonymous on June 1, 2014
12. ## algebra

Suppose that a plumbing repair bill, not including tax, was \$120. This included \$25 for parts and an amount for 2 hours of labor. Find the hourly rate that was charged for labor.

asked by Anonymous on December 27, 2015
13. ## physical science 101

find the mass of water in a bath tub whose interior is 1.300m long and 0.600m wide and that is filled to height of 0.3000m (hint: the density of water =1000kg/m^3)

asked by Patience on April 12, 2012
14. ## native american history

I have to explain the concept of the west and its inhabitants during the last half of the 19th cnetury and explain the transition of the identity of the indian leading into the early 20th century. can someone please tell me where i can find information

asked by teresa on September 12, 2007
15. ## pragati

the length of the fence of a trapezium shaped field ABCD is 130m and side AB is perpendicular to each of the parallel sides AD and BC. if BC=54m, CD=19m and AD=42m. find the area of the field.

asked by tanmay on March 13, 2014
16. ## math help

) Brian has 96 feet of fencing to enclose a rectangular space in his yard for his dog. He wants the rectangle to be twice as long as it is wide. Write and solve an equation to find the dimensions of the rectangle.

asked by mich on May 10, 2013
17. ## physics

A 800. kg car starts from rest and accelerates uniformly to 19.0 m/s in 22.0 s. Assume that air resistance remains constant at 340 N during this time. Find (a) the net force on the car

asked by Anonymous on October 11, 2012
18. ## physics

A pendulum bob of mass -m is suspended at rest a constant horizontal force f= mg starts acting on it . Find thecmaximum deflection of the string and the maximum tension in the string

asked by twinkle on September 26, 2012
19. ## physics

The distance between two consecutive nodes of a standing wave is 22 cm. The hand generating the pulses moves up and down through a complete cycle 3.89 times every 4.68 s. Find the velocity of the wave. Answer in units of m/s

asked by d on March 17, 2015
20. ## mba

the price p per unit at which a company can sell all that it produces is given by the function p(x) = 300-4x. the costs function is c(x) = 500+28x where x is the number of units produced. find x so that the profit is maximum

asked by viji on October 22, 2012
21. ## Discrete Math

Could someone help me with this induction proof. I know its true. given then any integer m is greater than or equal to 2, is it possible to find a sequence of m-1 consecutive positive integers none of which is prime? explain any help is greatly appreciated

asked by Kai on March 26, 2007
22. ## Criminology

One analysis of nearly 6,000 police-citizen encounters revealed that police officers were more likely to arrest when the victim was __________ and the suspect was__________. Im trying to do this study guide and I cant find these questions Can someone help!

asked by Heather on April 13, 2015
23. ## Calculus

Of the infinitely many lines that are tangent to the curve y = −7 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

asked by Laura on November 20, 2014
24. ## calculus

Find the midpoint of the line segment joining the point P1 and P2. P1= (2,5) P2= (-5,6) The midpoint is ___ Type the order pair, use intergers and simplified fractions for any number in the expression. I need this help ASAP Please!!!

25. ## statistics

If boys and girls are equally likely to be born, what is the probability that in a randomly selected family of 6 children, there will be at least one boy? (Find the answer using a formula. Round your answer to three decimal places.)

asked by jose on March 30, 2014
26. ## physics

A gazelle is running in a straight line (the x-axis). The graph in the figure (Figure 1) shows this animal's velocity as a function of time. During the first 12.0 , find the total distance moved

asked by Aj on October 9, 2012
27. ## physicsssss

3. A 885g mass to a verticle spring of force content 160N/m oscillates with a maximum velocity of .38m/s. Find (a) the period, (b) the amplitude, and (c) the maximum magnitude of acceleration.

asked by Quita on October 23, 2012
28. ## Physics

A pair of eyeglasses is designed to allow a person with a far-point distance of 2.06 to read a road sign at a distance of 20.6. Find the focal length required of these glasses if they are to be worn 2.50 from the eyes.

asked by Anonymous on May 20, 2013
29. ## Math

Given the following statistical list: 13,17,19,22,25,27,29,29,32,and 33. Assuming a desired "Confidence Level" of 95%, find the confidence interval for the above scores. 19.8 < u(mean)< 29.4 14.6 < u < 33 13.4 < u < 22.7 11.1 < u < 18.5 I have 2 weeks to

30. ## finite math

A young couple saves for a down payment on a house by depositing \$100 each month into an annuity that pays a 4.8% annual rate. Find the amount in the annuity at the end of 2 years.

asked by j on March 27, 2015
31. ## math

The minimum daily values (MDVs) for certain foods are given. They are based on a 2000 calorie per day diet. Find decimal and fractional notation for the percent notation on each sentence. a)

asked by carol on March 8, 2007
32. ## Calculus

The half-life of Kryponite-123 is 40 years. Suppose we have a 700-mg sample. Find the decay k, and the expected amount of Kryptonite left after 30 years. I need help setting this problem up.

asked by Ryan kustin on March 23, 2015
33. ## Math

1. The set of ordered pairs of the form (x,y) shown below represents points on a graph for a direct variation. (−4,6) (−1,−1.5) (0,0) (2,3) (6,9) Which equation best represents the relationship? A. y=3/2x B. y=2/3x C. y=x-2 D. y=x+3 Should I just

asked by Tia on February 3, 2015
34. ## matn

need help with word problem? half add it Find a number such that when added to numerator and denominator of 2/11 yields a fraction equivalent to 1/2? thanks for any help (x+2)/(x+11) = 1/2 x is the number you want. Now do the algebra. I will be happy to

asked by vince on March 8, 2007
35. ## Texas State History/Social Studies

compare the constitution of 1824 with the us constitution in terms of individual rights, religion, power of the president, and the right to posses firearms. This is an essay question. I can't find any similar questions to this on here. Can someone help

asked by random! on October 29, 2018
36. ## Math

I'm not sure how to do this. Can anyone help me solve it correctly? On the past two quizzes, a student scored a 75 and 83. Write and solve a compound inequality to find the possible values for the 3rd quiz score that would get her an average between 85 and

asked by Help me! on October 30, 2018
37. ## Physics

Find the location of the center of mass for a one-dimensional rod of length L and of linear density ë(x) = cx, where c is a constant. (Hint: You will need to calculate the mass in terms of c and L. Use any variable or symbol stated above as necessary.) X

asked by mymi on October 11, 2011
38. ## Statistics

A box contains twelve candies, five reds, four greens, and three blues. You select one piece at random, then replace it, then you select another. If P(BG) is the probability of selecting a blue first and a green second, find the following probabilities. a.

asked by Keonn'a on October 13, 2018
39. ## Physics

A turbine spinning with angular velocity w_0 rad/sec comes to a halt in T seconds. Find an expression for the angle delta theta through which the turbine turns while stopping.

asked by Nami on October 2, 2012
40. ## physics college

A rocket booster fires in space with a force of 500N and moves the 10kg satellite from rest to motion in 2.1 seconds. Find the acceleration? What is the final speed of the satellite?

asked by Gee on October 23, 2012
41. ## math

The minimum daily values (MDVs) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence.

asked by carmen on April 7, 2007
42. ## math

The minimum daily values (MDVs) for certain foods are given. They are based on a 2,000 calorie per day diet. Find decimal and fractional notation for the percent notation in each sentence.

asked by carmen on April 7, 2007
43. ## Math

The table shows the results of spinning a four-colored spinner 50 times. Find the experimental probability and express it as a decimal. P(not blue) = ? (Red) (Blue) (Green) (Yellow) 20 10 9 11 A. 0.1 B. 0.4 C. 0.8 D. 0.2

asked by Kpop on May 30, 2018
44. ## MIT

A 2kg block on a flat horizontal surface is pulled with a force of 15 N directed 10 degrees above the horizontal. It is found to accelerate at 2m/s^2. Find the coefficient of kinetic friction at the interface?

asked by Joe Parterner on July 9, 2012
45. ## math

find the adjusted balance due at maturaty for 90 day note of \$12,000 at 13.1% ordinary interest if a partial payment of \$60,000is made o\n the 60th day of the loan

asked by A on May 16, 2015
46. ## algebra

Find the greatest common factor of 270 and 360. (Give the answer in the numerical form in the top box and in exponential form by filling in the boxes for exponents.)

asked by tyjia on June 29, 2012
47. ## Algebra

convert english measurements to metrics L 134 in W 124 in H 92 in I took these three and multiplied them by 2.54cm I got 889cm. I need to find the volume in cubic centimeters. If each dimension (L,W,H) is doubled, what happens to the volume of the room?

asked by Jackie on June 27, 2012
48. ## Physics

For safety in climbing, a mountaineer uses a nylon rope that is 55 m long and 0.9 cm in diameter. When supporting a 82-kg climber, the rope elongates 2.0 m. Find its Young's modulus. I got 34737.433 but that is not the right answer please help!

asked by Kat on November 10, 2012
49. ## statistics

The weights of a group of adult males are normally distributed with a mean of 180lb and standard deviation of 8lb. Find the probability that a randomly chosen male from this group weighs more than 190lb.

asked by tiffany on June 10, 2012
50. ## physics

The water skier there has a mass of 71.0 kg. Find the magnitude of the net force acting on the skier when (a) she is accelerated from rest to a speed of 14.0 m/s in 9.00 s and (b) she lets go of the tow rope and glides to a halt in 16.0 s.

asked by Anonymous on June 9, 2012
51. ## Geometry

The math club of Ritzy High designed a pennant for the school yacht. The pennant was in the shape of an isosceles triangle. Two points, P and Q, are located so that AC= PQ= QB. Find the measure of angle B.

asked by Emily on June 9, 2012
52. ## social studies

im looking for imporatn event about martin luther and i cant find any so far i found he want again the church and belived in predeterminsih, he was put on trail, he escaped that it i need 3 more like its bout what he did agaisnt the church and what made

asked by Prabhjot on May 29, 2012
53. ## Algebra

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.7 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)

asked by Paul on July 20, 2012
54. ## Calc 1

Of the infinitely many lines that are tangent to the curve y = −6 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

asked by TayB on May 5, 2015
55. ## Stats

Can someone please explain how to find the frequency from: Lower limit:230,240,250 upper limit:239,249,259 Mid Value:234.5,244.5,254.5

asked by Alexander on September 3, 2012
56. ## algebra

Sheila Spinney borrowed \$32,500 at 7.5% simple interest for 180 days on January 7. The bank later sold the note at an 8% discount on March 2. Find the proceeds to the bank.

asked by Felicia on August 21, 2012
57. ## Physics

The distance between two consecutive nodes of a standing wave is 19.2 cm. The hand generating the pulses moves up and down through a complete cycle 2.59 times every 7.44 s. Find the velocity of the wave. Answer in units of m/s.

asked by Lauren on March 11, 2015
58. ## math: 68-95-99.7 rule

suppose that prices of a certain model of new homes are normally distributed with a mean of \$150,000 use the rule to find the percentage of buyers who paid: between \$150,000if the standard deviation is \$1200

asked by john on April 30, 2015
59. ## Calc 1

Of the infinitely many lines that are tangent to the curve y = −6 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

asked by TayB on May 2, 2015
60. ## Algebra

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.5 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)

asked by Renee Tyler on November 3, 2012
61. ## MATH

A semiograph 300km from the epicenter of an earthquake recorded a maxximum amplitude of 5.3x10^2 um. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth)

asked by TEDDY on November 4, 2012
62. ## HEALTH

Why are many fad diets considered unhealthy? A. Because they may not provide all of the nutrients your body needs B. Because they often promise quick weight loss C. Because people typically find it difficult to keep lost weight off D. All of the above D?

asked by Aya on August 1, 2012
63. ## l;k

Write a program that asks the user to enter the student’s name (first and last), and his/her first exam grade of three students, and then display them in a neat format. After that the program will find the average of the three grades, and print it

asked by ayham on October 24, 2011
64. ## geography

I`m glad to know i`m not the only one having trouble with the airbus geography homework report. It is hard to find the info you need to answer the questions. The one i`m stuck on is how the broughton site helps the airbus industry.

65. ## math,help

okay the problem states. the price of an item is given by p=2x^2-100 Find the polynomial that represents the revenue generated from the sale of x items. So this is what i did so far: First i tried solving for x using the equation. so p+100=2x^2 the rest i

asked by Jasmine20 on January 24, 2007
66. ## physics

A stone is dropped from the top of a tower 400 m high and at the same time another stone is projected upward vertically from the ground with a velocity of 100 ms −1 . Find where and when the two stones will meet.

asked by Deepa on September 12, 2015
67. ## STATISTICS

A random sample of stock prices per share (in dollars) is shown. Find the 90% confidence interval for the variance and standard deviation for the prices. Assume the variable is normally distributed.

asked by Paula on April 19, 2013
68. ## English 12

how could i make these two sentences better. In the south pacific mountaintops there is vast number of forests. Hunters from this mountaintop civilization find it extremely difficult to hunt with the burden of the forests.

asked by Pria on February 8, 2012
69. ## Chemistry

at a pressure of 390.0 kPa, a sample of ideal gas containing 110. moles of propane is collected at a tempature of 55 degrees celcius. find the volume of the propane tank used

asked by Elizabeth on February 25, 2013
70. ## Math

32,48,72,108...Arithmetic or geometric I think it is arithmetic Then Find common difference or ratio multiple of 12? What are the next 3 terms 120,132,144 What is the "zero" term 12 not sure what this means though What is the equation? 12n * n

asked by Tyler on February 9, 2016
71. ## Chemistry

at a pressure of 390.0 kPa, a sample of ideal gas containing 110. moles of propane is collected at a tempature of 55 degrees celcius. find the volume of the propane tank used

asked by Elizabeth on February 25, 2013
72. ## physics

A racing car travels on a circular track of radius 399 m, moving with a constant linear speed of 40.5 m/s. Find its angular speed. Answer in units of rad/s

asked by Amanda Om on January 7, 2015
73. ## math

region bounded by the parabolas y=x^2 and y=6x-(x^2) is rotated about the x-axis so that a vertical line segment cut off by the curves generates a ring. find the value of x for which we obtain the ring of largest area

asked by ML on January 28, 2008
74. ## calculus

F(x)=e^(-3x/2) Let R be the region between the graph of f and the x-axis on the interval 0 to 1 . Find the volume V of the solid of revolution generated by revolving R about the x-axis. Give both exact (symbolic) and approximate (numeric) answers.

asked by Dylan on November 28, 2011
75. ## Chemistry

Find the Concentration of CrO4^2- in 0.0033M Ba(NO3)2 saturated with BaCrO4. Include activity coefficients in your solubility-product expression. Ksp of BaCrO4 = 1.17 x 10^-10 I have no idea what to do to solve this :(

asked by Sam on February 4, 2013
76. ## internet help

after the constitution gave congress to collect taxes and regulate trade, what happened next. what were the positive things that happened because of that. i can't find that anymore Please amplify your question. It makes no sense to me.

asked by Anonymous on August 12, 2006
77. ## Calculus

a swimming pool has the shape of the ellipse given by (x^2)/3600 + (y^2)/1600 = 1 The cross sections perpendicular to the ground and parallel to the y-axis are squares. Find the total volume of the pool.

asked by Mike on January 29, 2013
78. ## History

Explain how attacks by abolitionists strengthened sectionalism in the south. Provide Support. All I need is the main idea. If you could just provide a sentence or two about this, or just help me find what I'm looking for by linking an article or something,

asked by ? on February 9, 2016
79. ## Algebra

Need some help with a few question. 1. Determine whether the relation is a function. Find the domain and range. {(10,2),∙(-10,2),(6,4),(5,3),(-6,7)} 2. What is f(4) if f(x) = |3x + 4| - 2 3. Write an equation that defines the graph of y = x2 after it is

asked by |-/ on January 11, 2018
80. ## Chemistry

Please can someone help me to explain or find me some material where i can study related to these 2 questions: 1.Analyse the spectrum of 1-methylstyrene. 2.Explain the formation of gaseous and solid state PCl5 from its IR and Raman spectra.

asked by PhysicalChemistry on January 19, 2013
81. ## Physics

At the moment t=0 a particle starts moving along thr x-axis so that its velocity projection varies as vx= 35 cos pi t cm/s, where 't' is expressed in seconds. Find the distance that this particle covers during t = 2.80 s after the start.

asked by Mike on February 17, 2012
82. ## Physics

A state trooper’s car sends out a radar signal at a frequency of 14 GHz. Find the wavelength of this signal. The wave speed is 2.998 × 108 m/s. Answer in units of m

asked by Shay on April 14, 2019
83. ## Electricity

Find the voltage across each resistor in a series circuit. Note: R is the lowest value and all others are multiples of that value as indicated. (there is no diagram for this circuit) double battery cell = 15v resistor1 = R resistor2 = 2R resistor3 = 4R

asked by anonymous on April 15, 2019
84. ## Math / Algebra Word Problem

The Parkhursts used 160 yd of fencing to enclose a rectangular corral and to divide it into two parts by a fence parrallel to one of the shorter sides. Find the dimensions of the corral if its area is 1000 yd^2 Thank you!

asked by Ray on December 6, 2007
85. ## Greens Theorem

Can someone show me step by step how to work this problem out please. Let C be the triangle with vertices (0,0), (1,0), and (1,2). Find the following line integral by two methods, directly and using greens theorem. 2xy^2dx + yx^2dy Thanks!!!

asked by julia on December 10, 2007
86. ## GGIS

A vertical radio mast is supported by wires attached to its top and to points on the level ground 9m from its base. If each wire is 31m long m, find the height of the mast.

asked by damilola on October 17, 2015
87. ## maths

You deposited 25000# in an account that earns 7% interest compounded monthly. A)write the first 6terms of the sequence if the initial deposit is excluded B)find the balance in the account after 5years

88. ## Math

Mr. Smith bought shoes for \$ 120 and a suit for \$ 340. Find the total cost including tax if the tax rate is 5.5%. (a)\$485.30 (b)\$48.53 (c)\$ 358.70 (d)\$460 (e)\$406

asked by Pete on September 15, 2011
89. ## explaining math problems

It is hard for me to figure out it the math sentence is + - x divide. What list of words am I looking for to find out the promblem in a math problem sentences. And what free websites can I go online and quiz myself if I am getting it. thank you avie

asked by Avie on September 15, 2008
90. ## algebra 1 help please

4) a student score is 83 and 91 on her first two quizzes. write and solve a compound inequality to find possible values for a thord quiz score that would give anverage between 85 and 90. a. 85≤83+91+n/3 ≤90; 81≤n≤96 b. 85≤83+91/2+n≤90;

asked by hips on April 25, 2013

find the absolute change between the closing for the Dow Jones ind. average between Jan. 27 - 20,093.78 and Nov. 21 of 23,590.83 round to the hundredths of a point. and round to the nearest 0.01%. thank you.

asked by JT on November 30, 2017
92. ## Calculus 1

Of the infinitely many lines that are tangent to the curve y = −4 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

asked by TayB on November 12, 2015
93. ## Maths

The radii of three concentric circles are 2cm, 3cm and 4cm Find the ratio of the shaded areas A (the second circle from the inside) and B(the outer circle) (Hint: don't substitute for pi)

asked by Math's Noob on January 8, 2012
94. ## Calculus 1

Of the infinitely many lines that are tangent to the curve y = −4 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

asked by TayB on November 13, 2015
95. ## math

The length of the fence of a trapezium-shaped field ABCD is 130m and side AB is perpendicular to each of the parallel sides AD and Bc.if BC=54m,CD=19m and AD=42m,find the area of the field.

asked by guru on December 27, 2011
96. ## MacArthur physics

. A person kicks a rock off a cliff horizontally with a speed of 20 m/s. It takes 7.0 seconds to hit the ground, find: a) height of the cliff b) final vertical velocity c) range

asked by Anonymous on November 24, 2015
97. ## calc

the base of s is a elliptical region with boudary cuvrve 16x^2 +16y^2 =4. cross sections perpandicular to the x axis are isosceles right triangles with hypotenuse in the base. find the volume of s

asked by mike on February 19, 2013
98. ## algebra

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.7 102 µm. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)

asked by suzan on December 18, 2011
99. ## English

I love to do creative writing. For school we have a contest called Power of the Pen that competes all over the state. I am going to the state compition and want to practice for it. How can I find inspiring things to write about?

asked by Taylor on March 16, 2008
100. ## statistics

we are interested in testing at level of significance alpha =10 whether the population mean is different than 15. a random sample of size 25 is taken with a mean of 13.9. assume standard deviation is 2 and normally distributed population. find the values

asked by jen on December 6, 2011