Trig check my work please?

88,597 results, page 45

Chemistry(Please check)

Classify the following functional groups: 1)CH3CH = CH2 I think this is an alkene 2) CH3CHCH3 I think it is an alcohol. ! OH Would you agree with my answers?

Can someone please check my answer for chemistry

Compelete the following table for an ideal gas. P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online homework says its wrong, what am I doing wrong?

algebra2 please check my answer thanks

find the vertical asymptotes of the following rational function(remember VA is X) x+6/(x^2+11x+30 ) my answer is x+6/(x+6)(x+5) cancel alike term i get 1/(x+5 )and V.A:x=-5 is that right thanks

algebra2 please check my answer thanks

find the vertical asymptotes of the following rational function(remember VA is X) y=x+6/(x^2+11x+30 ) my answer is x+6/(x+6)(x+5) cancel alike term i get 1/(x+5 )and V.A:x=-5 is that right thanks

SCHOOL

SHOOL IS NOT FUN!!!!!! ..... Jk.... April Fools!!!! Have a good day everyone and please don't use jiskha to cheat. Just use it to check your answers! :)

Math

What is the best estimate for the quotient. 5,397 division sign 62 a. 80 b. 90 c. 800 d. 900 My answer to the above is b Can you please double check my answer and let me know if I am right or wrong

Calculus Please Check my answer

Set up, but do not evaluate, the integral which gives the volume when the region bounded by the curves y = Ln(x), y = 1, and x = 1 is revolved around the line y = -1. ANSWER: v = ∫[1,e] π(4-(lnx+1)^2) dx

math (connections academy)

has anyone done the Unit 4 Lesson 11 Real Numbers and the Coordinate Plane Unit Test??? i need the answers so i can check if mine are correct!! please help!!!

math

jon and jony can do a piece of work alone 12days and 24days respectively.they were working together but after a few days jon went away.then jony can do the rest work in 3days.how many days are needed to complete the whole work?

Calculus

Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. Enclosed by y = x and y = x^4

physics

A sphere of mass 78 kg is attached to one end of a rope as shown in the figure below. It is found that the rope does an amount of work W = 3550 J in pulling the sphere upward through a distance 4.6 m. Find the work done by the force of gravity on the sphere. My work W= -78 * 9...

Math (Trig)

a ferris wheel has a radius of 10m and is one meter above the ground. If the ferris wheel makes 1 revolution every 20 seconds, write an equation that gives the height above the ground of a person on the ferris wheel as a function of time if that person starts (t=0) 1/8th of a ...

math

Find the second derivative. y = sqrt(3x+4) I will be happy to critique your work. We don't do it for you. Thanks. Please post under one name. Thanks. who are u?

Calc Help

q=(1000/p+1)^2 - 1 find q' Please help. Question on review sheet. I will be glad to help you, or critique your work. What do you think the way to solve it is>

Physics

How long does it take a 19 kW steam engine to do 6.8x10^7 of work? I have no idea how to solve this... Would someone please help?

math

whats the integral of e^(3sqrt(x))? i think i'm supposed to use substitution but i don't know what to substirute, i tried u= x^(1/3) but it didn't work out, please help!

science

how do water powered mills work???? please help!!!!!!!! due tomorrow only in 5th grade make it not complicated

US History

Can you please tell me where can I find more info about Hannah Galler, a holocaust survivor: her life and work?

science

the making of polymers is an example of the category of work done by chemists calledd ________ fill in the answerr. please helpp!

Algebra

I also needed help with this problem to: 8 divided by 4 times 2 - 7 + 3 Again could you please show me the work involved in getting the answer. Thank you.

Chemistry

Calculate the volume of 0.6M HNO3 necessary to neutralize 28.55 cm3 of 0.45M KOH. please show work and detail.

chemisrty

Under what conditions of temperature and pressure do you think that the gas laws would work best? Please be specific

calculus

Given x+xy+2y^2=6 find the coordinates of all other points on this curve with slope equal to -1/3. Please show work.

Calculus

Given x+xy+2y^2=6 find the coordinates of all other points on this curve with slope equal to -1/3. Please show work.

Alberbra

Please help with graphing a quadratic function. y=(x-1)^2 Got stuck at y=(x-1)(x-1) and p=1, q=1 Which doesn't work, because you can't fix a vertex with one point on a graph.

algebra 1

please explain to me how I work out problems such as "-2-3" to get the correct answer and show the same on a number line

math

find an equation of the linear function f using the given information. please show all steps and work f(-1)=1, f(1)=-2

algebra 1

3/4 + 1/8 = then simplifly i really don't get this and i need explanation of how you did that to do the rest of my home work like how did you get this and why? please and thankyou. very much

Math - Problem4

Solve the inequality. Express your solution using interval notation and please show all of your work. x^4 - 7x^2 - 14 > 0

algebra

solve by the substitution method: 8m+n=47 m-5n=52 thank you having trouble completing please show all work so I can learn better

college algebra

Solve the following equation in the real number system. Please show all of your work. 2x^3-3x^2-14x+15=0

Pre-Calculus

It may look lame but I can't work out how to solve (-9) sqrt(4-x^2) = 4x + 5sqrt2. I need some guidance, please.

geometry

please tell me if you know of any websites that would be helpful with information on Euclid's life, the scope of his work, and his importance to mathematics

pre calculus

Solve the exponential equation Express you solutions in exact form only Please show your work e^2x - 9e^x - 20 = 2

pre calculus

solve the following equation in the complex number system Please show all your work. 5x^5 + 32x^4 - 5x - 32 = 0

Chemistry

How many atoms are present in a sample of 2.0 x 10^23 molecules of C7H5(NO2)3? Do you use Avogadro's Number? And please show work.. :)

college algebra

Solve the following equation in the complex number system. Please show all of your work. 2x^5-3x^4-32x+48=0

algebra 2

how do you find a quadratic equation if you are given the solutions such as x=2/3 and x=-4 can you work out the solution of how you got your answer please

algebra

Write the slope intercept equation for the line that passes through (14,-2) and is perpendicular to 7x-10y=18.Please show work.

math - please help

What is the rotational speed (rpm) of the 64 in diameter rear tires of a tractor traveling at 6.5 mph if there is no slippage? How do I work this? Thank you.

algebra

i have to write a number in the block to make this true how do i get the answer for 70-30=40- please show me a example so i can complete my work

PHYSics PLEASE I NEED HELP

wally holds a pillow over his head for an hour does he do any work ? if not y? what energey changes is accouring?

math

The following sets of ordered pairs are functions. Give a rule that could describe each function. Please show your work. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,17),(5,26)}

college algebra

graph the function and state the vertex axis of symmetry, the intercepts, if any: f(x)=x^2-8x+15 Please show work so i can understand this. thank you

statistics

A student scored 30 percent on a test, and was in the 24th percentile. Explain these two numbers! Please show work!

college algebra--I really need help!!

Find the domain of the composite function FOG f(x)= 2/x-3; g(x)= 7/x please show work so I can undestand

maath

how many times did the minute hand of a clock rotate during March this year ? please explain how you work it out,thanks

calculus

Find the midpoint of the line segment joining the points P1 and P2 P1=(-1,5); P2=(2,0) m=(x,y)=? type an ordered pair Please show work

MATH

2(7w-1w+7)>122 ? what work would i do? im just learning inequalties and i have a quiz tomorrow with problems like this, please help!

Calculus

How do I answer these questions. Please show work. The answers are through the link as a png image. THanks! h t t p : //goo.gl/NNf9A

Chemistry

How many grams of magnesium sulfate would you need to make 0.500 L of a 10.0% M/V solution in water? Please show work.

Math

Let p and q be the roots of the polynomial mx^2 + x(2 - m) + 3. Let m1 and m2 be two values of m satisfying p/q + q/p = 2/3. Determine numerical value of m1/(m2)^2 + m2/(m1)^2. Please work the complete solution.

Math

Let p and q be the roots of the polynomial mx^2 + x(2 - m) + 3. Let m1 and m2 be two values of m satisfying p/q + q/p = 2/3. Determine numerical value of m1/ (m2)^2 + m2/(m1)^2. Please work the complete solution.

Calc Help :(((((

Find the derivative of the following function showing your work and fully simplifying your answer. Show steps please! Thank you!!!!!! f(x)=(x+3)^3(x-8)^5

Math

o is the center of the regular pentagon ABCDE. How many degrees are there in OAB? Please explain or show work A.36 B.54 C.72 D.108 E.126

Algebra 2

(192x^2y+72x^3)-(24rxy-9rx^2) I need help factoring completely in groups and can you please show all your work thank you

Math

Simplify each expression and state any non-permissible values. (4 marks - show your work) x^2-2x/(x+1) x x^2-1/(x^2+x-6) Please help me as I'm on a deadline to finish this course

Calc

∫ (2x+1)/(x+1) dx Please show steps if you work it. I think it's a partial fraction and worked with decomposition. Not sure though.

Biology

If 25 individuals were alive in 1955 and 500 existed in 2013, what is r? Show work please! a) 475 b)2.99 c)0.052 d)0.029

math

Inverse of h(x)=7-9cos(-(x+1)). h^-1(x)=? show work please! Thanks.. also accidentally put this as an answer somewhere pls ignore that!

Geometry

How do you use slopes to write the proportion to find the value of x for this problem... (4,5), (1,2), (x,0) please show your work and explain thx

Writing

how do I work cite a video from youtube please help me And also how do I write a paper aobut racism and what sources can I useñ

algebra HELP PLEEEEASE

Solve the following system using elimination or substitution. show your work. y = x^2 - 2x - 6 y = 4x + 10 Please explain how to do this and the answer! THANKS!

PLEASE HELP!

Mary's yard is a mess. She needs to hire someone to prune her trees and shrubs. A landscaping service she calls quotes her a price of $15 consultation fee plus $8 an hour for the actual work. Mary's neighbor has offered has offered to help her out. She doesn't charge a ...

physics

is the work needed to bring a car's speed from 0 to 10 km/h less than, equal to ,or more than the work needed to bring its speed from 10 to 20 km/h? if the amounts of work are different ,what is the ratio between them?

overview of teaching techniques

which of the following statements is a good technique to use when tutoring a student? (a)''the next problem is easy.you should be able to get it.'' (b)''this next problem is hard,but lets see if you can get it.''(my answer) (c)''johney and erica can do these problems,why cant ...

English

Working at a nursing home. I have volunteered at a nursing home. There were some work to do. I talked and listened to elderly people. I also cleaned the rooms at the nursing home. I was glad because I could help elderly people. (Would you like to check the passage? Thank you.)

physics

A 54.5 kg. skateboarder starts out with a speed of 1.90 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -265 J of work on him. In both cases, the forces doing the work are nonconservative. The final speed of the ...

Writing

Can you please check my citation? "Deforestation facts, Deforestation Information, Effects of Deforestation." National Geographic. n.p.,n.d. 10/22/10

Math(Please check)

evaluate the integral integral of 3 to 2 x/(x^2-2)^2 dx u=x^2-2 du=2x dx 1/2 du = x dx integral of 1/u^2 du -1/(x^2-2) Then I plug in 3 and 2 and subtract them form each other -1/(3^2-2) - (-1/(2^2-2) Is this correct?

precalculus

Find the difference quotient by using f(x+h)−f(x)/h 1) f(x) = √(2x+1) answer (√(2x+1+2h) - √(2x+1))/h can you check please

check my arctan please

arctan(1/12)= 4.763 rounded to the nearest tenth degree, which is 4.8? because arctan=inv tan

Help!!

1. Samuel is 2/3 as old as his brother. In five years, he will be 3/4 as old as his brother will be. Find their present ages. a. If x = the brother’s age now, write an expression for Samuel’s present age in terms of x. b. Write an expression for the brother’s age in five...

physics

Which of the following statements about work is or are true? (More than one statement may be true.) A. Negative net work done on an object always reduces the object's kinetic energy. B. If the work done on an object by a force is zero, then either the force or the displacement...

trig

The terminal side of an angle includes the point (5,-12). Give the sine, cosine, and tangent of the angle exactly. I know how to plot it and everything, but I'm not sure where to put theta so I know which angle to use for finding sine, cosine, and tangent. I think it has ...

English

I left out the following sentences. Thank you very much, Writeacher. 1) I think everybody would work at a passion but many times (mistake) this is often not possible. 2) If I worked, I would work at a job because I'll need (I need) to put aside money for me and my family. 3) I...

Physics 11

A 62kg cyclist changes the speed of a 12kg bicycle from 8.2m/s to 12.7m/s. Determine the work done. I've already answered & gotten this question correct, however it made me confused about the concept. I found Ek. & Ek to find change in Ek which was 3479.85. He did work against...

Physics

A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend in the bottom 15.4 cm of the jump? I need someone to check my work. I got about 3.797 as the inital velocity. I plugged this into "x = vt + 1/2at^2" ...

English

Can you please check these statements, please? Thank you. 1) Britain was unprepared for the use of the terrible destructive modern artillery, machine guns and tanks, and the use of gas and shells durin the attacks. 2) Shell shock was the term used by doctors to allude to the ...

Math check 4

Find the y-intercepts for the function given by: f(x)= 4/(x+5)-1/(x-4)/2/(x-3)+3/(x+2) Math check - Damon, Sunday, October 12, 2008 at 5:56pm The y axis intercepts are the values of the function when x = 0 4/5 - [(1/-4)] / [(2/-3)] + 3/2 Math check - shawn, Sunday, October 12...

English

Can you please check if the word choice is correct and if the words in parentheses are also possible? Thank you in advance. 1)Work out both the poem's rhyme scheme and its metre/rhythm The poem is written in rhyming couplets /in iambic pentameters. Each line consists of (is ...

prealgebra/ check answer please

What single discount is equivalent to two successive discounts of 15% and 7%? x= 100 [1-(.85)(.93)] = 100 (1-.79) =100 (.21) =21%

Algebra - please check my answer for me

The population increased 80 percent in 5 years. The current population is 18,000. find five years ago. 18,000 * 0.80 = 14,400 18,000 - 14,400 = 3,600 3,600 is the population five years ago? to check: 3,600 * 5 = 18,000 Is 3,600 the correct answer. Was this problem done correctly?

Chemistry

I posted before about designing a procedure to determine two unknowns (1 solid, 1 solution). The possible solutions were: NaCl, CaCl2, CuSO4, NaOH,Ba(OH)2, HCl, HNO3, or H2O. The reagents given are: NaOH, HCl, AgNO3, Zn metal, Na2SO4, and H2O. The procedure I've designed so ...

algebra

Using the equation below as a model, fill in numbers in the place of a and b to create a rational equation that has an extraneous solution. x+a/ax=b/x Part 1. Show all work to solve for x in the equation and check the solution. Part 2. Explain how to identify the extraneous ...

statistics

Given that x is a normally distributed random variable with a mean of 60 and a standard deviation of 10, find the P(56 < x <74). Please show all your work and write your answer in a complete sentence. Using the information from question 1, what percentage of the ...

Pre-Cal

Evaluate the following. Show you work: A). tan^-1(tan(5π/6)) B). cos^-1(cos(-π/4)) Can someone please show me the steps to evaluating this problem. I've been working this for 2 hours today and all of last night, I still can't seem to figure it out. Please leave notes...

physics - another question

Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which she's observing the trout is 45 degrees. b) ...

Math...Algebra :S

Hi, okay um. I'm trying to get his math question (Algebra :o) and i'm not quite sure what i'm doing---but everything i do, i get the wrong answer. The Question is 2m+n M= 2/5 and n= 1/2 (Fractions) Everytime i do the question, i get 9/10 as a answer...but i check the textbook ...

PHYICS URGENT URGENT PLEASE PLEASE PLEASE HELP ME!

A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough horizontal surface. The coefficient of friction between the ladder and this horizontal surface is 0.40. (b) Work out and add the numerical values of ...

chemistry, plz check work

NH3+H2S-->NH4HS <-- Kc=400 at 35 Celsius what mass of NH4HS will be present at equilbrium? My work NH3 H2S NH4HS initial 2 mol 2 mol 2 mol change -x -x +x equilibrium 2-x 2-x 2+x Kc=[NH4HS]/[NH3][H2S] 400=(2+x)/[(2-x)(2-x)] 400=(2+x)/(4-4x+x^2) 1600-1600x+400x^2=2+x 1598...

Math

I have another question I am stuck on that follows a previous question. How do I get an equation for the height of the car on the ferris wheel over a 10 minute period if we start the analysis one minute into the ride. Can I still use the original formula h = -35cos(2pi*X/5)+37...

dog behavior

please check my answer thanks What is one social characteristic that both wolves and humans share which may have helped the process of domestication ? I think it i thr formatio of extended families

Health 8th grade

Please check this question for me thanks What method of sterilization uses the same agents as are used to disinfect instruments ? A dry heat B gas C chemical D surgial asepisis I pick C

Applied Dog Behavior

please check my answer thanks The best way to test a puppy for temperament is to A. chase it. B. ignore it. C. observe its general level of activity and excitability. D. shout and see what it does. I pickecd C

Teaching dogs Tricks

Please check my answer thanks Mimicking should be used only for behaviors that A. can't be elicited any other way. B. the dog can't perform well. C. are very involved. D. are difficult to lure I say A

U.S. History

please check this 1. English explorers like Cabot, Frobisher, and Hudson were searching for a. the seven golden cities b. the Great Migration c. a Northwest Passage d. a land rout to California i picked C

U.S.History

please check Which of the following made possible the American industrial growth of the late 1800s? a. the household economy b. technological advances c. government reforms d. the developement of labor unions i chose B

history

please check what did the Office of Price Administration issue to consumers for buying scarce items? a. home-front coins b. credit cards c. ration books of coupons d. special armbands is it C?

history

please check the small town, the medical business, and dishonest ministers were all targets of novelist a. Duke Ellington b. Sinclair Lewis c. Langston Hughes d. William Randolph Hearst B?

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28
  29. 29
  30. 30
  31. 31
  32. 32
  33. 33
  34. 34
  35. 35
  36. 36
  37. 37
  38. 38
  39. 39
  40. 40
  41. 41
  42. 42
  43. 43
  44. 44
  45. 45
  46. 46
  47. 47
  48. 48
  49. 49
  50. 50
  51. 51
  52. 52
  53. 53
  54. 54
  55. 55
  56. 56
  57. 57
  58. 58
  59. 59
  60. 60
  61. 61
  62. 62
  63. 63
  64. 64
  65. 65
  66. 66
  67. 67
  68. 68
  69. 69
  70. 70
  71. 71
  72. 72
  73. 73
  74. 74
  75. 75
  76. 76
  77. 77
  78. 78
  79. 79
  80. 80
  81. 81
  82. 82
  83. 83
  84. 84
  85. 85
  86. 86
  87. 87
  88. 88
  89. 89
  90. 90
  91. 91
  92. 92
  93. 93
  94. 94
  95. 95
  96. 96
  97. 97
  98. 98
  99. 99
  100. 100