# find d/dx (integral from 2 to x^4) tan(x^2) dx tan(x^4)^2*4x^3 MY ANSWER

138,784 results, page 76
1. ## Maths

Check my answer please? Not sure if I did this right. Let y = f(x) be a cubic polynomial with leading coefficient a = 2 and f(-2) = f(1) = f(2) = 0. find the factored form of f. I got: f(x) = 2(x + 2)(x - 1)(x - 2)

asked by Bobby on February 19, 2015
2. ## spanish

Im doing a project on Argentina, and we need to find a tradition and answer questions. Do you know of any Argentine traditions or know any websites i could use?

asked by Emily on March 24, 2008
3. ## Math

Explain how you could find the volume of a pyramid given a prism with the same base are and height. Justify your answer.

asked by Helen on April 3, 2016
4. ## Statistics

find z such that 6.6% of the standard normal curve lies to the right of z. (Round your answer to two decimal places.)

asked by Amy on November 17, 2016
5. ## CALC HELP!

Find an equation of the tangent line to the graph of y= x+ (4/x) at the point (4,5). I can't figure out the answer to this. It's supposed to be y=3/4x +2 but I can't get that.

asked by em on March 9, 2016
6. ## chemistry

Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I don't know what to do

7. ## math

please can you explain this to me I don't understand! Find the value of the following 10! 11! over 7! 13! If your answer is not an integer, write it as an exact fraction. thank you so very much

asked by mary ann on January 31, 2015
8. ## Algebra II

Find all zeros of f f(t)=(t-2)^3-(t-2) ok... now do I have to factor out (t-2)^3 to [t^3-6(t^2)-12t-8] and then minus (t-2) resulting in [t^3-6(t^2)+13t-6]? if so, where can I go from there?? sorry... the second answer would be [t^3-6(t^2)+11t-6]

asked by Becca on November 8, 2006
9. ## science

Doing review and can't find answer in notes: sun is approximately 4.5 billion years old what is it's classification?

asked by jessicaB on September 27, 2007
10. ## statistics math

MEAN ƒÊ=10 & STANDARD DEVIATION ƒÐ=2. FIND THE PROBABILITIES: 9.4 Ú X Ú 10.6 i have 2 different answers but am checking the answer. thank you one is 0.6179 the other is 0.2358

asked by Jeannie on March 8, 2011
11. ## Physics

A 2.73 kg particle has a velocity of vx = 6.02 m/s and vy = 0.316 m/s. Find the magnitude of its total momentum. Answer in units of kg · m/s

asked by Kaylee on June 27, 2014
12. ## maths

Find length of diagonal of rectangle whose adjacent sides are 30cm and 16cm.tell answer

asked by shikha on July 26, 2016
13. ## Math

Find the limit (if it exists). (If an answer does not exist, enter DNE.) lim_(x->59)(sqrt(x+5)-8)/(x-59)

asked by Anonymous on January 28, 2012
14. ## PreCal

Find the distance between P1(3, –195°) and P2(–4, –94°) on the polar plane. Round your answer to the nearest thousandth.

asked by Jack on September 5, 2011
15. ## functions

given: f(x)=(2x+3)/(3X+2), find the inverse function of this. please don't give me the answer only, i would like to see the full working out so then i'll know how to do it next time!thanks!!:-)

asked by Ann on May 17, 2008
16. ## math

Find the x-intercepts of the parabola given by the equation. (If an answer does not exist, enter DNE.) y = 5x2 − 5x

asked by Anonymous on November 13, 2018
17. ## Geometry

M is the midpoint of LM LM=3x+5 LN=5x+40 Find MN I've tried to work this out several times and am pretty sure I start it off by 3x+5=5(x)+40 but I keep getting a negative answer or a fraction for X and know that is not right. Can someone please help me?

asked by Tiffany on September 12, 2014
18. ## Math

Find the distance d(p1,p2) between the ponts p1 and p2. P1=(-4,3); P2= (6,0) d(P1,P2)= _____ Type an exact answer, using radicals as needed.

asked by Sully on September 22, 2016
19. ## Chemistry

What are probes in RFLP made of? HOw do they help isolate rare DNA fragments? I can't find the answer, so can I get some help please.

asked by Andre on May 23, 2008
20. ## calculus

Find all relative extrema of the function. (Enter NONE in any unused answer blanks.) f(x) = x4 – 8x3

asked by Anonymous on October 9, 2012
21. ## world studies

The rapid exchange of ideas in the computer age has increased the _____. I can´t find the answer.

asked by kid on November 19, 2018
22. ## history U.S

I can't find the answer to this plz help how did adams' supporters characterize jefferson during the election og 1800?

asked by hi on January 22, 2016
23. ## calculus

For the function f(x) = 1 + sin(x) find f(2). Leave your answer rounded to tenths. Assume x is in radians

asked by kaycee on February 5, 2010
24. ## Calculus

use implicit differentiation to find dy/dx if 5xy+x^2y=10 Is this correct answer for this question (-5y-2xy)/(12x)

asked by Angie on January 6, 2017
25. ## Math

Need help I have to find a pattern for 8, -1, 2, -1 I know the answer is 1/3 but have no idea how I get there...I am trying to multiply each by -1/2 but I can't get the 1/3 at the end for some reason and I have the similar problem as well: 8, -4, 2, -1

asked by Maggie on May 24, 2008
26. ## statistics

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 7, n2 = 16, and á = 0.05 F=?

asked by Tiara on March 19, 2014
27. ## geometry/help

Find the area of a regular heptagon with the side 7 cm. answer 178.1 cm² can you check

asked by mike on April 28, 2011
28. ## Trigonometry

I'm supposed to find the angle reference for a degree of 0. I think the answer is 180 degrees. Is that correct?

asked by Ineedhelp on January 22, 2018
29. ## statics

two dices are rolled find the probability that the sum is less than 6 and what is the answer rounded to 4 decimals places

asked by bernie on July 29, 2016
30. ## chemistry

Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V I don't know what to do

31. ## calculus

lim as approaches infinity of sin(pie.x/2-3x) i need the work and answer find the limit

asked by Ben on October 2, 2011
32. ## calc

Find the slope of the tangent line at (8,8) for the function (16-x)y^2=x^3 Round your answer to two decimal places.

asked by math on October 24, 2013
33. ## precalculus

Can you check my work? find two sets of parametric equations for the given rectangular equation x+y^2=4 answer: x=-y^2+4 x=-t y=-t^2+4 x=-t^3 y=-t^3+4

asked by Anonymous on December 12, 2016
34. ## Math - Please Check My Answer

Please help me with the following: Find the greatest possible error for each measurement. 4 1/2 oz A. 1/4 oz B. 2 1/2 oz C. 1 oz D. 2 1/4 oz I know it is not B(I got it wrong.), but I think it is A. Is this correct? Please help me by checking my answer.

asked by Brady on September 1, 2014
35. ## Geometry

Find the area of the trapezoid. L1 = 23ft, L2 = 15ft, H = 12ft Is 228 ft the correct answer?

asked by Mindy on November 8, 2011
36. ## geometry

A cone has a volume 320 cm^3. Find the radius of the base. Round your answer ti the nearest 0.1 cm.

asked by Anonymous on May 20, 2015
37. ## English, Written Communication

Which of the following are examples of coordinate headings? A. 3, b, iii B. A, i, a C. ii, 2, B D. A, B, C My answer was C but i got it wrong, is it A? PLEASE HELP CANT FIND IT IN MY TEXT BOOK

asked by Nicole on May 23, 2015
38. ## math

I am trying to find the answer to a scientific notation problem, express in simplify terms (-2y) with and exponent of 4.

asked by LAWRENCE on January 3, 2011
39. ## algebra

I need to find the approx. value for x that are solutions to f(x)=0 for f(x)=-5x^2 + 7x + 2 please show steps as the answer I got does not match any of the multiple choices.

asked by Alaska Diamond on September 26, 2013
40. ## Physics

Find the magnitude and direction of the equilibrant force for these two concurrent forces: 13.5 N, E and 32.0 N, N. Pls HELP me answer this. Thank u very much.

asked by Stephanie on October 16, 2013
41. ## Math

Find the are of a triangle with 7 ft height and 22 ft length. A. 154ft^2 B. 58ft^2 C. 77ft^2 D. 38.5ft^2 Is the answer A?

asked by Callie on January 22, 2015
42. ## Algebra

Find the domain of the function. f(x)=(sqrt x+6)/(-2x-5) Write your answer as an interval or union of intervals.

asked by Jena on February 4, 2011
43. ## Geometry

the angle of depression from D to F measures 40 degrees. If EF= 14 yd, find DE. round answer to nearest 10th

asked by kelsey on February 8, 2012

Consider the following function. f(x)= x^2 - sqrt(x) Find the equation of the line tangent at the point (1, 0). the answer would be 6, duh

asked by Me on February 20, 2007
45. ## calc

If 4x2+3x+xy=2 and y(2)=–10 , find y'(2) by implicit differentiation. i keep getting the wrong answer for this problem evn when plugging 2 in for y.

asked by sara on May 9, 2008
46. ## Math

Find an equationof the line having the given slope and containing the given point. Express your answer in the form y=B or y=mx+b M=0,(0,5) The equation is y=

asked by Pam on February 11, 2014
47. ## social studies

what is a corporate farm? its part of a short answer and i cant find a definition that is easy for me to understand.

asked by Natasha on March 28, 2017
48. ## physics

ok so dr= 2i + 3j while F= 5i + 2j It wants me to find the work. now i know w=Fxdr. what i want to know is why when you take the dot product of both, you get a different answer compared to when you just multiply the magnitudes.

asked by Mitch on March 7, 2010
49. ## pre calculus

can you check my work Find two different sets of parametric equations for the given rectangular equation: y=x^2+10 answer: x=t y=t^2+10 x=t^3 y=t^6+10

asked by Anonymous on December 12, 2016
50. ## calc

If 4x2+3x+xy=2 and y(2)=–10 , find y'(2) by implicit differentiation. i keep getting the wrong answer for this problem evn when plugging 2 in for y.

asked by sara on May 9, 2008
51. ## Calc/Precalc

Find the derivatives of 1. ln[(2x^3⋅2e^x)] 2. xy = cot(xy) 3. y = cos(x^3 + 27) I don't really know where to start with these. The answer is (3+x)/(x) for the first, y/-x for the second, and 35. -3x^2 sin(x^3 + 27) but I have no idea how they got there.

asked by Heather on May 8, 2015
52. ## math

Let X be a normal random variable with μ = 12 and σ = 2. Find the value of the given probability. (Round your answer to four decimal places.) P(7 < X < 9) =

asked by titi on July 3, 2017
53. ## History

After the civil war, why did some southerners feel they were being taxed without representation? I can't find the answer. Some help would be appreciated!

asked by Gerard Way on April 7, 2017
54. ## geometry

a circle is inscribed in an equilateral triangle. how do you find the value of x? also have to round the answer to the nearest whole number.

asked by ivette hanon on May 19, 2011
55. ## math

Find the geometric mean of the pair of numbers below. If necessary, give the answer in simplest radical form. 5 and 18

asked by divina on January 16, 2018
56. ## Geometry

Find the missing side. Approximate the answer to three decimal places when appropriate. A = 15 yd C = 25 yd I have no clue on how to do this one. Please any help would be appreciated.

asked by Mindy on November 8, 2011
57. ## Geometry

Find the area of the trapezoid. L1 = 23ft, L2 = 15ft, H = 12ft Is 456ft the correct answer?

asked by Mindy on November 8, 2011
58. ## Geometry

Find the area of the parallelogram. L1= 19m, L2 = 25m Can you explains this? Do I multiply? Is the answer 475m?

asked by Mindy on November 8, 2011
59. ## Maths

For the geometric sequence t: {3, m, n, 192, . . .}, find the values for m and n.(Answer is m=12, n=48) How can we do this without trial and error? Thanks to anyone who helps.

asked by Fred on October 6, 2018
60. ## Geometry

Given: ΔАВС, m∠ACB = 90° m∠ACD = 30° AD = 8 cm. Find: CD, Perimeter of ΔABC plz add answer

asked by Alexa on February 25, 2017
61. ## Maths

The curve y = ax^2 + bx + c touches the line y = 2x at the origin and has a maximum point at x = 1. Find the values of a, b and c. (answer: a = -1, b = 2, c = 0)

asked by Fred on November 16, 2018
62. ## Graphing Linear Equations! Quiz! HELP ASAP

I just need many examples and tips on how you solve, find, graph, and answer linear equations. I'm so confused!

asked by Random Girl on February 7, 2018
63. ## math

Use a proportion to find the length of the missing side in the following similar figures. Answer choices: x = 28 cm x = 30.8 cm x = 6.4 cm x = 19 cm

asked by rasberry on November 30, 2015
64. ## mathematics

find the general solution to the following differential equation dy/dx=-(In(x))/(x^2)*y^1/2 (x>0,(y>0)give answer in implicit form.

asked by queros on May 29, 2008
65. ## Statistics

If four coins are flipped at once, find the probability that there will be at least 2 heads. Round your answer to 3 decimal places.

asked by Hunter on March 3, 2016
66. ## Statistics/Math

U.S. Interstate 64 runs between Portsmouth, VA, at I-264 on the eastern end to St. Louis, MO, at I-270 on the western end. While passing through six states and five more major cities, I-64 intersects nine more interstate highways. The number of miles in

asked by Jane on July 4, 2012
67. ## circles and arcs

YOU have a circle with a traingle inside. P being the top of triangle and Q and R, are on the sides, PQ= (8x-10) and PR=(6x) and the bottom QR= (10x+10) SAYS: a)find X b)is the triangle equilateral, isosceles, or scalene? explain. We have not done this

asked by lilman on May 23, 2012
68. ## Physics/Math

A single force acts on a 5.0 kg particle-like object in such a way that the position of the object as a function of time is given by x = 3.0t - 4.0t 2 + 1.0t 3, with x in meters and t in seconds. Find the work done on the object by the force from t = 0 to

asked by Technoboi11 on March 3, 2007
69. ## English

When making multiple choice quiz for students about speaking. Do I need to use question marks in the answer choices. Example- Hello how are you. a)fine thank you and you b)good wasup c)I'm ok Answer (a) is the answer to the question but in itself is a

asked by Ajarn on August 17, 2012
70. ## Metaphors

Find a metaphor --------------------------------------- DREAMS Hold fast to dreams, For if dreams die, Life is a broken-winged bird That cannot fly. Hold fast to dreams, For when dreams go, Life is a barren field Frozen with snow. -Langston Hughes !. What

asked by Larry on January 14, 2009
71. ## Physics

The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5). (a) What is its molecular mass (in atomic mass units)? 294.13 u (b) What is the mass (in kg) of an aspartame molecule? kg I was able to find the mass units but I'm having

asked by Will on April 27, 2008
72. ## Math, Algebra

Can someone correct my homework. Evaluate.For number 1 1) /4/ + /-3/ My answer: 7 2)Business & Finance: A country exported \$60,00,000 less than it imported, creating a negative trade balance. My answer: -60,000,000 Evaluate the following expressions

asked by Jasmine 20 on November 24, 2006
73. ## Math

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = + x (ii) Graph this equation on a scatter diagram. (Do

asked by Tracy on June 28, 2013
74. ## Algebra

Here's the question: Jose needs to enclose a rectangular section of his yard. The area is 35 sq. ft. and the perimeter is 27 sq.ft. Find the length and width of the section. The issue I'm having is that I think I need to find the common fators of 35 and 27

asked by cbarnett on December 19, 2006
75. ## Discrete Math

I am really stuck on these problems. I've worked a lot of them but I can't get these. Sometimes I think I know the answer but I can't show how I got it. 1.) Solve each matrix equation for X. 2X + 5A = B 2.) Find the following matrices: a. AB b. BA A= 2 4 3

asked by Ryan on February 25, 2010
76. ## Trigonometry

Find cotangent theta given that cosecant theta equals -3.5891420 and theta is in the third quadrant. I was using the trig identity 1+cot^2theta=csc^2theta I wanted to isolate cotangent so I plugged in 1/sin (-3.5891420) and then squared my answer. I then

asked by Maddy on February 9, 2015
77. ## year 8 maths

Find the amount of the following foreign currencies (to 2 decimal places) that can be bought with 250 Singapore dollars. The sterling pound There is a chart and the pound sells at 2,552,0 for 1 Singapore dollar. The pound is bought at 2,578.0. I did

asked by Maria Chiara on December 12, 2009
78. ## Math Question

Hi! We asked this question last night but we got confused. Find the amount in the account if \$2000 is invested at 6.125%,compounded semi-anually, for 2 years. I worked this problem and Lydia worked this problem. I came up with the answer \$2,252.50 However,

asked by Logan and Lydia on February 27, 2007
79. ## Probability

A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDF fQ(q)={3q2,0,if q∈[0,1],otherwise. A coin produced by this machine is tossed repeatedly, with successive tosses assumed to be independent. Let A be

asked by A on April 2, 2014
80. ## Math

I am having trouble understanding how to reduce fractions to its lowest term... All I can understand is I have to find the lowest number that will divide into both numerator and denominator. How do I understand the solution on how to reduce fractions to

asked by Tonya on November 1, 2011
81. ## Physics

A pair of speakers separated by distance d = 0.900 m are driven by the same oscillator at a frequency of 670 Hz. An observer originally positioned at one of the speakers begins to walk along a line perpendicular to the line joining the speakers as in the

asked by Anna on June 8, 2015
82. ## Physics

A pair of speakers separated by distance d = 0.900 m are driven by the same oscillator at a frequency of 670 Hz. An observer originally positioned at one of the speakers begins to walk along a line perpendicular to the line joining the speakers as in the

asked by Anna on June 8, 2015
83. ## ruby

there is a sandbox with a width of 6ft and a length of 10ft, suppose the length and the width are doubled. a. find the percent of change in the perimeter b. find the percent of change in the area i think the answer is 66.67% for both of them

asked by math (check answers) on February 21, 2016
84. ## Precal

How do you find all the polar coordinates of P=(-1, -2pi/3)? I've read that you're supposed to add 2pi to find the coterminals but when I do that I get different answers then in the book. The book answer is (1, 2pi/3+ (2n+ 1) pi) and (-1, -2pi/3+ 2npi).

asked by Mayhem on February 25, 2012
85. ## calculas

how long will it take an ice cube to melt completely? You left out an ice cube ant 1/4 of it melts in 1 hour. Use the following steps to find out how long it will take before it is melted completely. 1-let s represent the side length of the ice cube, and

asked by julie on March 6, 2011
86. ## Spanish Lit (De la Educación Moral)

Ok so I'm trying to analyze the essay De la educación moral by Gabino Barreda but I'm stuck on these two paragraphs. Thus far in the essay I've found that he's trying to prove that religion itself is poitnless and irrelavent because all the rules and what

asked by Cassie on October 4, 2011
87. ## calculus

The question I'm having problems with is If f(x)=3x^2+7x+2, find f'(4) , using the definition of derivative.f'(4) is the limit as x--> ________ of the expression __________________. The value of this limit is _________________. I've got the first part that

asked by Ron on January 27, 2012
88. ## STATS

The probability of a manufacturing defect in an aluminum beverage can is .00003. If 100,100 cans are produced, (a) Find the approximate probability of at least two defective cans. (Round your answer to 4 decimal places.) (b) Find the approximate

asked by Helen on October 30, 2010
89. ## Calculus

Two cars start moving from the same point. One travels south at 60 mph and the other travels west at 25 mph. At what rate is the distance between the cars increasing 2 hours later? Let x = the distance covered by the south traveling car. Let y = the

asked by Robin on June 29, 2013
90. ## Physics

I have to design a laboratory activity to answer the question, "What is the relationship between the diameter of a circle and the area of the circle?" My teacher said to use a previous activity as a templete to help me. For the previous activity you had to

asked by Jim on April 1, 2009
91. ## Algebra

Two more Algebra questions : Having some difficulty with these. Drawing a blank on this one, not sure where to start. Find the equation, in standard form, with all integer coefficients, of the line perpendicular to x + 3y = 12 and passing through (9, -5).

asked by John on October 16, 2007
92. ## physic

Part 1 A 3.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0 ◦ with the horizontal, as shown in the ﬁgure. The acceleration of gravity is 9.81 m/s2. If the coeﬃcient of kinetic

asked by ally on February 26, 2011
93. ## Math

A person has a total yearly income of \$36,000. The part of thier income spent on transportation is 15%. How do I find the fraction in simplest form that represents the part of thier income spent on transportation? I don't want the answer, just how to get

asked by Mary on June 8, 2008
94. ## Math

A person has a total yearly income of \$36,000. The part of thier income spent on transportation is 15%. How do I find the fraction in simplest form that represents the part of thier income spent on transportation? I don't want the answer, just how to get

asked by Mary on June 8, 2008
95. ## French

Can you please check these thanks. Directions: Identify each person described below (we are in the sports chapter by the way) Part 1 1. Un garçon ou une fille qui joue -------------. Answer: un joueur ou une joueuse 2. Un joueur qui garde le but

asked by Missy on October 1, 2009
96. ## Quantum Physics

We will carry out some steps of the quantum factoring algorithm for N=91 (a) What is the period k of the periodic superposition set up by the quantum factoring algorithm if it chooses x=8? I.e. what is the period of f(j)=8j(mod91) (b) Using your answer to

asked by ss01 on October 13, 2013
97. ## math

the world's largest cube puzzle in Knoxville measures 6 feet on each side. The scale factor between a standard cube puzzle and largest is 1/24. Find the surface area and volume of the standard cube puzzle. Answer is 0.375ft^2/0.015625ft^3 Not sure how they

asked by mary on March 28, 2015
98. ## physics

Assume the proton is at rest initially. The charge on the proton is 1.602×10−19 C and its mass is 1.67 × 10−27 kg. If the magnetic ﬁeld is 2.85 T and the potential diﬀerence is 2.29 MV, ﬁnd the magnitude of the force on the proton after the

asked by Anonymous on March 14, 2013
99. ## statistics

B} The average number of mosquitoes in a stagnant pond is 70 per square meter with a standard deviation of 8. If 36 square meters are chosen at random for a mosquito count, find the probability that the average of those counts is more than 70.9 mosquitoes

asked by Loren on November 13, 2014
100. ## Math

The formula N = 10(4') gives N, the number of bacteria present in a culture after t hours. How many hours does it take for the number of bacteria to grow to 2,560? a. 2 hours b. 3 hours c. 4 hours d. 5 hours The answer is c., but is there another way to

asked by Angie on June 14, 2009