# Please help me with these problems. Work and answer is appreciated! :) thanks. 1. Find on the interval theta is greater than or equal to 0 and less than 2pi; then find the general solution: 5tantheta+1=-2.89 16cos^2theta-6=3 6sin^2theta+sintheta=2 costheta=.84 2tanx=7

180,329 results
1. ## Algebra

I need to find the volume of a cylinder. Use 3.14 for pi...I think the answer is 24,501.42 m^2...the picture shown is a cylinder with a diameter of 34m and a heigth of 27m I know how to work these problems out and I got 24,501.42m^2 but the computer is

2. ## Math

A physics exam consists of 9 multiple-choice questions and 6 open-ended problems in which all work must be shown. If an examinee must answer 5 of the multiple-choice questions and 2 of the open-ended problems, in how many ways can the questions and

1. Which of the following best describes science fiction? Answer:C The characters often face problems related to future tech advancements. 2. A literary analysis should contain a Answer: A thoughtful interpretation of a work 3. Which sentence below is

4. ## Statiatics

A student ran out of time on a multiple choice exam and randomly guessed the answers for two problems. Each problem had 5 answer choices a, b, c, d, e and only one correct answer. What is the probability that she answered neither of the problems correctly?

5. ## math

Is this the right way to answer this question? A physics exam consists of 9 multiple-choice questions and 6 open-ended problems in which all work must be shown. If an examinee must answer 7 of the multiple-choice questions and 3 of the open-ended problems,

6. ## physics

Part 1 A 15.6 kg block is dragged over a rough, hor- izontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of kinetic friction is 0.234. Find the work done by

7. ## Algebra

Here is the problem: A two-digit number is eight times the sum of its digits.When the number is added to the number obtained by reversing the digits,the sum is 99. Find the original number. Please explain hot to solve it and it would help a lot to if you

8. ## Math

I am having a lot of problems in math right now. I am doing practice problems right now and I don't even understand them. I don't really understand it and I do online school. Any help would be appreciated. 1. What is the simplest form of the radical

9. ## Calculus

The velocity of a particle moving along the x-axis at any time t >= 0 is given by v(t) = cos(pi t) - t(7 - 2pi). a. Find the acceleration at any time t. b Find the particle's maximum acceleration over the interval [0, 2]. Use derivatives to support and

What is the measure of the smallest angle in the figure? The figure is not drawn to scale. In this problem my test shows a 90 degree angle, and then for the other two angles, there are algebraic problems. Here are the problems. 6x - 7, and 4x - 3. My

11. ## algebra

A student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. X= # of problems 11= 3 of missed problems 65% of

12. ## MATH

A physics exam consists of 9 multiple choice questions and 6 open-ended problems in which all work must be shown.If an examinee must answer 6 of the multiple- choice questions and 3 of the open-ended problems, in how many ways can the questions and

13. ## physics

hi! i am having so much trouble understanding 2 problems from our module, and i would just like some guidance from anyone here! any help is appreciated! thank you in advance and sorry for the trouble. first is: A particle of charge 3x10^-9 C is located at

Please help me with the following two problems: Find the greatest possible error for each measurement. 512 m A. 0.5 m C. 0.5 cm B. 5 m D. .005 cm I think the answer is A. Is this correct? Find the greatest possible error for the given measurement if it is

Please help me by checking the following answers for me(There are 3 problems that I need someone to check). 3. A student is attempting to solve the equation below for the variable x. Which of the statements below best applies to the mathematical work

16. ## Parabolas in standard form!

Hello, I am having the worst time trying to solve these parabolas and putting them into x-h = a(y-k)^2 form. :( There are two problems that i keep doing something wrong. could someone solve them so I can have a set up for the rest of my problems? :)

17. ## Pre-algebra

I have some practice problems, and I need to have them worked out, showing your work. I will gain a better understanding of these problems by practicing them. Thank you. (6x+1)(x^2-9x+5) (2x^4+3)(4x^3+2) (12y^3+8y^2+20y)divided 2y (6x^2-25x-10) divided by

18. ## Math

Kenneth has 22 math problems to do for homework. He has 12 problems done.How many more problems does he left?if he completes 1 problem every minute,how many more minutes does he have to work?

I need help with this one, please. Which of the following is in the solution set of the inequality –3 > –3t + 6? A. -1/3 B. 1/3 C. 4 D. -4 I did a Pre-Test for my lesson, and it says I got this one wrong. However, it doesn't say which one I picked. For

20. ## Quadratic Equations and Functions

I started having trouble on part (c), and I need to know this before I can go onto the other problems. Plz help! The parabola shown at the right (no picture, sorry) is of the form y=x^2+bx+c. The graph's y-intercept is (0,2), the axis of symmetry is -2.5

21. ## SOLVE -MATH

A physics exam consists of 9 multiple choice questions and 6 open-ended problems in which all work must be shown.If an examinee must answer 6 of the multiple- choice questions and 3 of the open-ended problems, in how many ways can the questions and

22. ## Calculus

Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x^3 − 16x on the interval [−1, 1]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem. f(a)=15 f(b)=-15 f'(x)=3x^2-16 f'(c)=-15 I am now lost

23. ## precalculus

My book tells me to solve each exponential equation. I am given a lot of problems such as 6^x+1 = 4^2x-1 where I use In in the problem to help get my answer. However, in the same section, the book starts giving me problems such as 3(2)^x-2 +1=100 and

24. ## math

Multiply and simplify 2/3*13 The answer is 22. Right? if you mean (2/3) * 13 or 2 / (3*13) i believe according to both your answer is wrong Is that (2/3)*13? If so, then (2*13)/3= something other than 22. Or if it is 2/(3*13) = it is not 22. Show your work

25. ## Math (Calculus)

Given any Cartesian coordinates, (x,y), there are polar coordinates (r,theta) with –pi/2< theta < pi/2. Find polar coordinates with –pi/2 < theta < pi/2 for the following Cartesian coordinate: If (x,y) = (11,–7) then (r, theta)=( ____, _____ ) I was

26. ## Calc help

find the area of the region enclosed by y=e^2x, y=e^5x, and x=1. i am having trouble seeing how this region looks like and having problems with how to start the problem in general. Much help is appreciated.

27. ## algebra homework help

A student missed 8 problems on a Chemistry test and received a grade of 47%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. My answer is 15 question were on the test is this

28. ## Physics

How much work is needed to move a -8.00 uC charge from the ground to a point whose potential is +75.0V ? I know -8.00 uc = -0.8 x 10^-6 then I used W = Fd but I can't seems to get right answer any hint is appreciated.

29. ## calculus

I'm not sure where to start on these two problems, so any help is greatly appreciated. 1)4^x = x^2 2)5-x^2 = e^x

30. ## math

Can someone please check my work? Solve using substitution method 1. 3x+2y=12 x=52-6y answer:-40.8 I am pretty sure that one is wrong. Solve using elimination method 2. 2r-7s=-31 7r+2s=24 answer: (230/53,-468/53) 3.3x+4y=3 6x+8y=6 answer: No answer.

31. ## math

I am taking a job related test consisting of several math sections. I have been out of school for quite some time and am looking to find the easiest place to get tips and tutorials to solve these questions. The topics are as follows: multiplication and

32. ## Algebra

Please confirm if I did the follow problems correctly: A) Find the sum or difference. (5a – 3b) + (2a + 6b)= 7a + 9b Answer: = 7a + 9b B) Let’s work a few of these (FOIL) 1) (x+2) (x+8) = x 10 Answer: x10 2.) (x+5) (x-7) = x + 11 Answer: x + 11 3.)

33. ## math

what if ur teach iz a total which? also what happens when you get totaly confused when you have to work out the problems?if don't work out the problems, theni get a 000! That's why the best way to learn is by studying yourself using good books! :) First

34. ## Statistics

Two problems: 1. Find D sub 3 of the following data set: 60, 40, 26, 33, 23, 53, 36, 23, 28, 12, 30, 47 2. Find P sub 26 of the following 25 scores: 38.5, 41.5, 52, 52.5, 61, 63, 63.5, 68, 69, 69, 78.5, 79, 80, 83, 87, 88.5, 88.5, 91, 91.5, 92, 92.5, 94,

35. ## Algebra 1

Keesha is having trouble solving the following compound inequality. She arrived at a final answer (below), but when she checked her work, she discovered that it is incorrect! Find Keesha’s error and explain to her how to fix it and solve the problem

36. ## math

i am taking a job related test with many math sections. I am long out of school and need some tutorials as well as practice questions and answers. The topics are as follows: -multiplication and division of fractions and mixed numbers -calculating

37. ## math

kenneth has 22 math problems to do for homeworks he has 12 problems done. How many more problems does he have left? If he completes 1 problem every minute, how many more minutes does he have to work?

38. ## Algebra

Here is the problem: A two-digit number is eight times the sum of its digits.When the number is added to the number obtained by reversing the digits,the sum is 99. Find the original number. Please explain hot to solve it and it would help a lot to if you

39. ## Algebra

Can someone check my algebra answers and help me with the problems I don't understand? 1. n^2-n-20/2n^2 times n^2+5n/n^2-25 answer: n+4/2n 2. (2x-6/21)/(5x-15/12) answer: 8/35 3. 5x-3/6 - x+3/6 answer: 2x/3-1 4. 5x/26 - 2x/13 answer: 1x/26 5. 3x^2/9x^5

40. ## Math / Algebra

Factor: 8ab - 16ac + 12a anyone wanna help me out with this, i know how to normally work out problems like this but for some reason im not getting the correct answer when i work it out...

Please help me with the following question: A student attempts to solve for c in the equation below. Which statement best applies to the work shown below? 3c + 6 - 4c - 12c = 7 -13c + 6 = 7 -13c + 6 + (-6) = 7 + (-6) -13c = 1 c = -1/13 A. The student

42. ## math

I need help with these two math problems. i have been trying those for two hours. Can't find the answer. use grouping symbols to make each equation true. 1/2*2^3/2*4/8*4/2=1/2 64-5*1+4/8+5=3 *= multiplication is there any qucik way or any trick to solve

43. ## Quadratic Equations and Functions

I started having trouble on part (c), and I need to know this before I can go onto the other problems. Plz help! The parabola shown at the right (no picture, sorry) is of the form y=x^2+bx+c. The graph's y-intercept is (0,2), the axis of symmetry is -2.5

44. ## algebra

I have a few math questions I made them just like my actual problems so that I can go through the steps you have went through to answer my own problems...Again THESE ARE NOT THE REAL PROBLEMS JUST EXAMPLES LIKE MINE WITH DIFFERENT NUMBERS. I don't know how

45. ## Calculus

Let h(x)= x^3 + 4x -2. Let g(x) represent the inverse of h(x). Find g(14). I know that if (a, f(a)) is on h(x), then (f(a), a) will be on g(x). I also know that if f^-1(a)=b if f(b)=a. I thought that if I could find the x value(s) at which h(x)=14, I would

46. ## Math

What are the solution sets of the following 3 problems,the square root of x squared + 3x = x-3, the square root of 3x + 10 = x + 4 and finally the square root of 8x - 2 = the square root of 2x? Help much appriciated. I will one as an example. sqrt(3x + 10)

47. ## introductory algebra

I had these problems on my test and for some reason got them wrong. Here are the problems: Solve: x-y=9 x+y=1 The test states that the answer is (5,-4) I've checked ,y work and used substitution to solve this and still get x=4, y=-5. The second problem is:

48. ## math

find thedomain and range of {(7,-2), (-6,-4) (9-9,)-(5-5)}= evaluate f(x) +3x^2-4x-3at f(x-1)= evaluate f(x)= -5x+8 atf(-3)= it will be well appreciated of what how and help with these math problems plz thank you

49. ## algebra homework help

A student missed 3 problems on a Physics test and received a grade of 94%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. my answer is 5 questions

50. ## Physics

well, we tried searching up simple physics equations on google, as dr. bob222 suggested, but we found problems that were way out odf our range. we are looking for problems similar to this. --- Suzan does not remember which one of the following equations

51. ## Grammar

Circle the nouns that can be used with the verbs on the right . Engine-consumption-dependence (reduce) Answer : consumption and dependence Solution-dependence-alternative (find) Answer:solution and dependence Resources-technology-stocks(deplete)

I will appreciate it if anyone can help me with the following: 1. The optimal height h of the letters of a message printed on pavement is given by the formula . Here, h= (0.00252d^(9/4))/e d is the distance of the driver from the letters and e is the

53. ## English Language

I asked this question earlier. I need to write 2 letters of complaint about problems I face at school and problems I face as a student in general but I can't find any problems, could you help me list some problems? Its really really urgent.

54. ## algebra

Essay; show all work. Find the product: (1/7x^2-2/5)(1/2x-1/2) any help would be appreciated

55. ## Calculus

A function f(x) is defined by: f(x) = { m * sinx + n, if x 2 pi. a. Given that f(x) is a differentiable function, find the values of m and n. b.Write the equation of the tangent line to f(x) at x = 2pi. c. Use the tangent line equation to find an

56. ## Math...Applying the Order of Operations

Can you please show me where i'm going wrong? Here's the question: 2(14+35/7) - ((-14 + -35)/-7) A.28 B.31 C.26 D.26 E.38 Here are the rules that apply: Multiplying and Dividing Integers. *If the signs are the same,then give the answer a positive sign. *If

57. ## calculus

I have to help teach this class tomorrow for my Senior Seminar Math class. The lesson is over Exponential and Logarithmic Functions and L'Hospital's Rule. I have all the problems needed to review this lesson, but i can not solve any of them. My teaching

58. ## algebra

i am having problems with this current equation. 10/(5+x)= 12 so far i have tried to multiply both sides by x+5 but then my answer is x = 4.16... and im thinking its wrong. Thanks in advance and if possible answer with a explaination would be greatly

59. ## Calculus AP - Volume of Revolution

Hi. I have a few calculus problems that I have to do using the washers and shell method to find out what the volume of the graph rotated is. I'll post one question at a time with my work. The problem is, I should be getting the same answer for the problem

60. ## Phyical Science

I have several problems where I have the answer, but I need to know how to work it out. You guys are amazing. Any help would be appreciated. Problem: A series of ocean waves, each 6.0 m from crest to crest and moving past an observer at a rate of 2.0 waves

61. ## Math

I need someone to show me how to work these two problems out. 30. find the hypotenuse of a right triangle whose sides measure 9 and 12: i came up with the answer 15 but i honestly forgot how i got this answer please let me know what i did wrong and work

62. ## AP Calc

Hi, I have few problems that I really need help solving. I think I start out right but get messed up along the way and get the wrong answer...Any help is appreciated! thank you so much! find derivative of: 1) y=arctan 2^x 2) arctan(xy)= 1+x^2y Also... 3)

63. ## Calculus

Find the work done by F(x,y,z)=(x^2y)i=(x-z)j+(xyz)k where c=(t)i+(t^2)j+(2)k, 0

64. ## Math

I wanted to double check that I am correct on the work area and answers please. 1.Given f(x)=x+2 and g(x)= 3x-4. Find (f+g). Work: (x+2) + (3x-4) Answer: 4x-2 2.Given f(x)=x+2 and g(x)=3x-4. Find (f*g). Work: (x+2)(3x-4) Answer: 3x² +2x-8 3.Given f(x)=x+2

I need at least two or three examples as to how outsourcing project work can help alleviate some of the common problems associated with multiproject resource scheduling. Any help will be appreciated. This is the only part of the entire assignment that is

66. ## calculus

the second number is the reciprocal of the fist and the sm is a minimum. this is my my work and i got stuck x=first number y=second number so y=1/x then what. i know the answer is 1 and 1. also can you explain why the answer is 1 and 1 and not just one. it

How do I solve the following problems? My homework was to correct a puiz that I failed, but I do not know how to solve these problems..please help! Solving systems of equations using elimination: 7.) 10x - 10y = 0 5x - 4y = 8 Answer (8,8) I got the right

68. ## Math

I did this problem on a practice test, but the answer isn't in the back of my study guide, although I believe I'm correct. Can someone check my work? Thanks; very appreciated. Find p(-2) if p(x) = 3x^4 + 3x^3 + 7x - 10 3(-2^4) + 3(-2^3) + 7(-2) -10 3(-16)

69. ## algebra homework help

student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. X= # of problems 11= # of missed problems 65% of correct

A right triangle has hypotenuse 8 and area 8. Find the perimeter? I think I have to use Heron's Formula for this question. Please help & show work. Thank you very much. Your work is very much appreciated.

71. ## algebra

Jared can work 54 math problems in one hour, how many problems can he work in ten minutes

72. ## Spanish

How exactly will I do this? I seriously need help yet,I can't even attempt this. My teacher hasn't taught me this stuff as yet. So help would be appreciated. This is what I'm working on: Command form(imperative mood)negative familiar/polite. I have to

73. ## basic geomectry

Would please somebody help me answer the geometry work that I posted . these is for my G.E.D . Your question was already answered, although the many problems it contained were not solved for you. That is something you are going to have to make an effort at

74. ## Math

Jared can work 54 math problems in 1 hour. How many problems can he work in 10minutes?

75. ## Math/Geometry

A correct answer will yield me an "A" all SEMESTER, so help is appreciated Question: Can you find a pythagorean triple whose nonhypotunese legs ARE NOT divisible by 12? That is to say that triples like 3,4,5 would not work because a(3)xb(4)=12/12=1 meaing

76. ## Pre-algebra

I have some practice problems, and I need to have them worked out, showing your work. I will gain a better understanding of these problems by practicing them. Thank you. (6x+1)(x^2-9x+5) (2x^4+3)(4x^3+2) (12y^3+8y^2+20y)divided 2y (6x^2-25x-10) divided by

77. ## Yet another science question..

How much work is done when you push a 50kg refridgerator across the room for 3 meters? None, if you ignore friction. Work requires a force, gravity is upwards. In reality, work is done in pushing horizontally, but that is due to friction, not mentioned

78. ## Math

Can you please explain step by step on how to do each of these two problems below? And then tell me whether it involves an arithmetic sequence or a geometric sequence I also need the work shown out on both problems thank you. Perform the indicated

79. ## MATH

Please help me with these problems. Work and answer is appreciated! :) thanks. 1. Find on the interval theta is greater than or equal to 0 and less than 2pi; then find the general solution: 5tantheta+1=-2.89 16cos^2theta-6=3 6sin^2theta+sintheta=2

80. ## Trigonometry

Alrighty I have to find two real world sinusoidal functions. I found: 1. A piston in an engine moves up and down in a cylinder. The height, h centimeters, of the piston a t seconds is given by the function: h= 120 sin(πt) + 200. 2. You can find the

81. ## ap Physics

1. a)A 15.6 kg block is dragged over a rough, horizontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of kinetic friction is 0.234.Find the work done by the

82. ## Math Last one

I am down to 5 out of 49 problems that I can't figure out. Help is very much appreciated. Thanks ! c^2 +8c +15 =0

84. ## Algebra

If anyone can check my work for me that would be greatly appreciated I'm having trouble. Evaluate the expression foe the given value of the variable. |-4b-8|+|-1-b^2|+2b^3 ; b=-2 I got 1 for my answer -4(-2)-8-1+2^2+2(-2) 8-8-1+2^2-4 -1+2^2-4 1

85. ## math

I having problems figuring out how to work this problem 6X^2+7/3X^2+1 is the answer 3X+6?

86. ## Calculus I

We're reviewing limits from the previous chapter, but I'm still having some difficulty with some problems: lim tan(pi(x/4)) as x-> -7 lim (x^2 - x^3(cos(1/x))/3x^2 as x-> 0 I know the answer to the first problem is 1 and to the second problem it's 1/3 but

87. ## Math

Shelly is working 250 math problems and she wants to finish in 6 days. If she works the same number of problems each day for 5 days how many problems will she have left to work on day 6?

88. ## Precalculus problems check?

Did I do these two problems right? P(1-sqrt2) = 8x - 4x^2 P(1-sqrt2)= -4 P(2/x)= 8x - 4x^2 P(2/x) = x-1 I think when the answers are plugged back in, the equation is supposed to equal zero, but I don't get this; however, I always redo each problem with

89. ## Math

I have trouble solving distance rate problems. I have a worksheet that I want to complete. I will post one question in hopes that someone can break it down so I am able to solve other distance rate problems. (Step by Step please.) Thank you. An aircraft

90. ## Math

Do you know of a good website that can help me with word problems? I want to be able to type in the word problem, get an answer with an explanation of the problem and they got the answer. Sorry! The Internet is wonderful -- but it doesn't do our thinking

91. ## Math

I am down to 5 out of 49 problems that I can't figure out. Help is very much appreciated. Thanks ! Factor 64a - 49^3=

92. ## Math

I am down to 5 out of 49 problems that I can't figure out. Help is very much appreciated. Thanks ! Factor 81a^6 - 3q^6

93. ## algebra- FINAL UNIT!!

Hi! My name is Jason, I needed help studying for tomorrow's test. The exam is on number problems. EX. One positive number is 4 times another. IF 240 is divided by each number, the greater quotient exceeds the lesser by 15. Find the two numbers. Also, there

94. ## Physics

One of the most powerful cranes in the world, operating in Switzerland, can slowly raise a load of 6000 tonne to a height of 12 m. (1 tonne = 1000 kg) The acceleration of gravity is 9.81 m/s2 . How much work is done by the crane? Answer in units of MJ I

95. ## Algrebra

Please confirm if I did the follow problems correctly: A) Find the sum or difference. (5a – 3b) + (2a + 6b)= 7a + 9b Answer: = 7a + 9b B) Let’s work a few of these (FOIL) 1) (x+2) (x+8) = x 10 Answer: x10 2.) (x+5) (x-7) = x + 11 Answer: x + 11 3.)

I need at least two or three examples as to how outsourcing project work can help alleviate some of the common problems associated with multiproject resource scheduling. Any help will be appreciated. This is the only part of the entire assignment that is

97. ## math

evaluating functions For some reason I can't get these 3 problems correct: g(x) = x^2(x-5) g(3/2) g(c) g(t+2) Any help would be greatly appreciated. I contribute as much as I can and I don't seem to get any help. Maybe these are too hard of problems?

98. ## physics

The equation given is 2SO2(g)+O2(g)->2SO3(g), and if 224L/h of O2 (at standard temp and pressure) is consumed by the reaction, how much power is produced? I can't go further than P=Work/Time and Work=P times change in V I've tried 224x2-224x3/60^2 but

99. ## physics - so important

In which of these cases is a youngster doing work in the school gymnasium? climbing up a rope lifting a set of weights from the floor to overhead PLEASE HELP ME? i NEED TO KNOW THiS FOR A TEST TOMORROW iN PHYSiCS & i CANT SEEM TO FiND THE ANSWER ANYWHERE &

100. ## Math

I am down to 5 out of 49 problems that I can't figure out. Help is very much appreciated. Thanks ! Factor by grouping: x^3 + 8x^2 -5x -40= I have (x^2 -5)(x + 8) ????