88,916 results, page 8
1. ## French

Could you please check these thanks. Directions: Write another word or expression for each phrase below. 1. un vol qui arrive de Paris. Answer: Un vol en provenance de Paris. 2. un vol qui va à Paris. Answer: Un vol à desination de Paris. 3. Un vol qui
2. ## Calculus

Let f(x)=αx^2+βx+γ be a quadratic function, so α≠0, and let I=[a,b]. a) Check f satisfies the hypothesis of the Mean Value Theorem. b)Show that the number c ∈ (a,b) in the Mean Value Theorem is the midpoint of the interval I.
3. ## Calculus - please check my work

evaluate rounding to 2 decimal places if neccessary a) 1n5 = 1.61 b) lne^2 = 2 c) (lne)^2 = 1 please let me know if these are correct, thank you.

Hi, please check my work: In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The balanced equation is: 4FeS + 7O2 --> 2Fe2O3 + 4SO2 Calculate the % yield. My Answer: nFeS=23.4g/87.92 g/mol =0.266 mol 4mol FeS /
5. ## Math - Answer Check

Write the composition function and then find the value. f(x) = 2x+3 g(x) = x^2 k(x) = square root(x - 4) 1. g(k(x)) g(k(20)) My answer: Function is x - 4, the value is 16. 2. f(g(x)) f(g(2)) My answer: Function is 2x^2 + 3, the value is 11.
6. ## Calculus

Hellp I have a calculus test on Monday 2. Calculate the slope of the tangent to the given function at the given point or value of x a. f(x)=3/x+1,P(2,1) b.h(x)=2/squareroot x + 5, P(4,2/3) ****Full solutions to please because I do not know what I'm doing
7. ## Derivative Calculus

I just need my answers checked. 1) Find the derivative. f(x)=3x^5/4 - 8/9x^9/8 + x^2 - 9x + 1 Answer: f’(x)= 15/4x^1/4 - x ^1/8 + 2x -9 2) Let f(x)= 7x^3 - 9x. Find f’(5) Answer: f’(x)=21x^2-9 f’(5)=516 3) Find the given limit by evaluating the
8. ## Physics with work, pls help

A proton is moving in a circular orbit of radius 11.8 cm in a uniform magnetic field of magnitude 0.232 T directed perpendicular to the velocity of the proton. Find the orbital speed of the proton. Answer in units of m/s. I came up with .118/2.83x10^-7 and
9. ## MATH: Check my answers | HELP ASAP!!

A parking lot space is in the sape of a retangle. if the space has a length of 23 ft and a width of 12 ft, what is the area of the parking lot? A.128 ft B.266 ft C.276 ft######### D.138 ft Check my answer please! I think I'm right.
10. ## math

Double check please Write each of the following as a common fraction or mixed number. Write your answer in lowest term 28. 15.35 Answer: 1535 / 100 = 307/20 = 15 35/100 is 15 7/20 Complete each of the following statement, using the symbol < or > 5/16
11. ## Cardiovalscular

Phonology refers to the science which treats A. vocal sounds B. heart rhymths C.nutrional deficiencies D. blood disorders my answer is (C) can someone check my answer
12. ## Science 7R - HW Qs. Check

14. Which muscle is responsible for bending the elbow joint? a) masseter b) trapezius (it can't be this answer cuz that's is the back) c) triceps d) biceps My Answer (and also think) - C am i correct????
13. ## Java Programming I

Hello! Thanks for checking my question out! ____ 2. If x is an int, which of the following statements adds 5 to the current value of x and stores the new value back in x? (1 point) a) x = 5; b) x + 5; c) x =+ 5; d) x += 5; My Answer: D Could someone please
14. ## Law and Ethics in Med

Please check my answer thanks :) Give an example of paternalism prevailing over autonomy? My answer is ... Requiring a Jehovah's Wittness to receive blood transfusions against her will.

What is the wavelength (in nanometers) of light emitted from a hydrogen atom when an electron falls from the n = 2 to n = 1 orbital? I got this answer and i wanted to make sure it is right 121.7 Thank you

) Which of the following industries most likely originated the business-speak term "bandwidth"? A. Finance B. Real Estate C. Technology D. Health care I think the answer is C. Can someone please check my answer?
17. ## Math Check

Hi! I need help with this one problem. My teacher told me that I could use any method to solve the following system and this is the answer I got; (1/2,2/5). Is this correct? 0.15r + 0.85s = 0.23 0.20r + 1.25s = 0.33 Write answer in (r, s).
18. ## Dogs Hunting Training

Please check my answer thank you very much for all of your help :) Which of the following is not a trained ability ? A. Range B. Pattern C. Gun response D. Reponse to wind and scenting condititions My answer is C
19. ## Math CHECK MY ANSWER

1. You mix the letters S, E, M, I, T, R, O, P, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability that you select a vowel. Write your answer as a fraction in simplest form. A. 12/5 ** b. 5/12 c. 1/3 d. 7/12
20. ## Math

"Last year, the personal best high jumps of track athletes in a nearby state were normally distributed with a mean of 229 cm and a standard deviation of 19 cm. What is the probability that a randomly selected high jumper has a person best between 229 and
21. ## Chenistry check

Can someone check my answer? The question is: In order for the reaction 2Al(s) + 6HCl(aq)-> 2AlCl3(aq) + 3H2(g) to occur, which of the following must be true? a. Al must be above Cl on the activity series. b. Al must be above H on the activity series.

A Flagpole casts a 60 foot long shadow on the ground. The angle from the tip of the flagpole to the end of the flagpole's shadow measures 35 degrees. How tall is the flagpole? can i use cos(55degrees) = 60/h which gives me 104.61. Please check. Thanks!
23. ## math

just want to check if my answer is right for this problem: 4+[20/4)*2] + [(2*8)/4]=18 is the answer 18?

Solve: 7r - 7 = 2r + 18 My answer: 7r - 7r - 7 = 2r - 7r + 18 -7 = -5r + 18 -7 - 18 = -5r + 18 - 18 -25/-5 = -5r/-5 R = 5
25. ## Algebra

Check these answers? ? 3x + y = -8 My answer: y=-11 2x - y = 11 My Answer: y=13
26. ## Math ~ Check Answers ~

#5 X: 0, 1, 2, 3 Y: -4, -3, -2, -1 a.) -1 b.) 1 c.) -4 d.) -7 (My Answer)*** #6 X: -1, 0, 1, 2 Y: -4, -1, 2, 5 a.) -5 b.) -3 (My Answer)*** c.) -1/3 d.) 3
27. ## math

which of the following is equivalent to (-2) - 5? A -2 + (-5) B -2 + 5 C 2 +(-5) <--- My answer D 2 - (-5) Can someone check my answer
28. ## Algebra HELP

(3((3x-1)/(x+3)) - 1) / (((3x-1)/(x+3)) + 3) What would the answer be? I already found the answer but I just want to check.

31. ## math-calculus

30/x^2-25 = 3/x-5-2/x+5 i be left with 30 = 3x^2-75-2x^2+50 i not sure what to do? i use the quadratic formula? math-calculus - Steve, Saturday, January 7, 2012 at 3:38pm First, you have to simplify properly: 30/(x^2-25) = 3/(x-5) - 2/(x+5) 30 = 3(x+5) -
32. ## 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
33. ## Math: Calculus

Estimate the area under the graph of f(x)=x^2+2x from x = 4 to x = 10 using 3 approximating rectangles and left endpoints. I got 290.25 as my answer but it's wrong. Would someone explain to me how to answer this question.
34. ## Please check my Calculus

f(x)=x^n , where n is a positive integer greater or equal to 2. The graph of f(x) will have an inflection point when n is A. Even B. Odd C. Divisible by 3 D. For all values E. For no values I got B.
35. ## Calculus check 1 questiom

Determine the equation the tangent line on curve 4e^x on (0,4). Since derivative of 4e^x =4e^x, then I plugged in 0 for X and the slope I got was 4. Then I wrote the equation and got y=4x +4
36. ## math

Ex 3: 4x-7<2x+5 4x-7-2x<2x-2x+5 2x-7<5 2x-7+7<5+7 2x<12 2x/2<12/2 x< 6 Note I did not switch the order of the inequality here since I divided by a positive number. Multiplying or dividing by a positive number does not change the order
37. ## math

would someone check these please 1. find the square root of 25 answer 5 2. find the median of the following set of numbers 33,72,23,27,77,68,85 answer 68 3. find the mean of the following numbers 13, 15,18,18,18,19,22,26,28,33 answer 21 4. find the mode
38. ## Calculus

If F(x)=x^3−7x+5, use the limit definition of the derivative to find FŒ(5), then find an equation of the tangent line to the curve y=x^3−7x+5 at the point (5, 95). FŒ(5)= The equation of the tangent line is y = x + . Check your answer for
39. ## Math

HELP! can you check and help me with some of these? 1. y + 8 = -15 My answer: -7 2.3x = 27 My answer: 9 3. 5 + a = -19 My answer:-24 4. x + 1/3 = 5/6 My answer: NEED HELP WITH THIS ONE 5. -54 = -6y My answer: 9 6. a/3 = -11 My answer: -33 7.19.5 = -39.5 +
40. ## Calculus (Please check my work!)

Suppose that y = f(x) = x^2 - 4x + 4. Then on any interval where the inverse function y = f-1(x) exists, thederivative of y = f-1(x) with respect to x is: (Hint: x^2 - 4x + 4 can be factored and rewritten as "something" squared.) Work thus far: Okay, so I
41. ## Math

Please double check In a bottling company, a machine can fill a 2-liter (l) bottle in 0.5 second (s) and move the next bottle into place in 0.1 s. How many 2-l bottles can be filled by the machine in 2 h? Answer: 1.00 or 0.20 A circular coffee table has a
42. ## Math Help

This is a substitution equation. Would that change the steps that you did? Y=3x+1 Y=5x-3 Answer says x=-2 and y=7 Please explain steps. Thanks math help - MathMate, Monday, April 23, 2012 at 10:25pm Y=3x+1 ...(1) Y=5x-3 ...(2) By comparison of (1) and (2),
43. ## MATH HELP Calculus

Im stuck on a lot of questions, here they are: 24 + 12 + 6 + ...(S7) Sn = 24(2^7-1)/2-1 S7 = 24(127)/1 S7 = 3048/1 Thats what I got as an answer, but it's wrong, the real answer is a fraction answer, and its 381/8. How did they get that??? The other one
44. ## Calculus AB

I had to integrate [(x^2+1)/(x^2-x)]dx with partial fractions. My answer was 2ln abs(x-1) -ln abs(x)+C. But the answer on the answer sheet has an extra +x that I did not account for. Is that a typo or did I integrate incorrectly?
45. ## Math check

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321 2.71 was my answer. .
46. ## Geometry

Hello! Thanks for checking my question out! ____ 6) Name a pair of vertical angles. Image URL: goo.gl/nH83eT My Answer: AFE DFE Could someone please check my answer? Thanks! - Da Fash
47. ## Financing and Budget

A full-charge bookkeeper A.is a CPA B.is a tax expert C.can prepare financial statements D.must have child care experience. My answer is C. Can you check my answer.
48. ## Geography check

I have to answer the question this african country is a world leader in coffee and cacao exports. The answer is Cote d'Ivore or Ivory Coast, correct?
49. ## mixed #'s

Find n. n+n=8 1/2 what does n =??? n+n = 2n <~~right? Therefore, you should be able to rephrase it this way: 2n = 8 1/2 Now divide each side by 2, and you'll have your answer. Yes?? I'll ask a math teacher to double-check my thoughts. =) 2 n = 8 1/2 n =
50. ## Anatomy and Physiology

Hello! Thanks for checking this question! ____ 26. At approximately what age does nerve conduction achieve maximum capacity? (1 point) a) 5 b) 10 c) 20 d) 30 My Answer: A Could someone please check my answer? Thanks! - Da Fash

Decided wheather work is being done or not. If it is being down write W. If not write N 1. You throw a baseball a distance of 20 meters. My answer: W 2. You lift a suitcase to put in the overhead luggage compartment of a plane. My answer: N 3. You push
52. ## Science 7R - Homework Check (Q3)

What's the function of a dichotomous key? My Answer: Dichotomous Key use by scientists are arranged in steps with two descriptive statements at each step. Is my answer to this question is correct??? BTW: I got this answer from my textbook in that section
53. ## Calculus

R=M^2(c/2-m/3) dR/dM=CM-M^2 I found the derivative. Now how would I find the vale of M that maximize the derivative dR/dM? set it to zero, and solve for m. You get two solutions. Use the second derivative to see which one is the max. I get M=C. How do I go
54. ## Calculus

I have tried calc-chat's method and I always get the answer 12 units but the answer should be 69 according to my key! What do I need to do to get there?? "Use the limit process to find the area of the region between f (x)=10x+8 and the x-axis on the
55. ## Calculus

If the functions f and g are defined for all real numbers and f is an antiderivative of g, which of the following statements is NOT necessarily true. (A)If g(x)>0 for all x, then f is increasing (B)If g(a)=0, then f(x) has a horizontal tangent at x=a
56. ## Calculus

Find the area under the curve of y=-2x+6 from x=0 to x=3 using 3 strips of equal length using right endpoints. I tried this equation before and my answer was 9 but my teacher said it was wrong? and I also posted this before and Someone who helped me got

Hi I posted early and got a response but the correction suggested can't be corret. Could someone please check these answers-I had to answer in past tense-- Could some one please check these-I had to answer them in the past tense which is still confusing
58. ## Finite Math

Fifty percent of students enrolled in calculus class have previously taken pre-calculus. Thirty percent of these students received an A for the calculus class, whereas twenty percent of the other students received an A for calculus. Find the probability
59. ## Accounting: Lock Box System

What minimum reduction in the time to collect and process each check is needed to justify use of the lock box system? If 400 payments per day, 2,000 average payment size, Bank charge \$.40 per check and interest rate is .015 per day. The answer depends on
60. ## calculus

Find any relative extrema and any points of inflection if they exist of f(x)=x^2+ ln x^2 showing calculus. Please show work in detail so I can follow. Thanks. The answer is no relative max or min and the points of inflection are (1,1) and (-1,1) but I'm

1) Solve the equation: 15(7x-6) = 3x-5 My answer is (-85/108) 2) Mary and her brother collect coins. Mary has 4 times the number of coins that her brother has. Together they have 175 coins. How many does Mary have? My answer is 140 3) Perform the indicated

I'm having trouble with this question on arc length: y=lnx, (squareroot)3/3 greater than or equal to x less than or equal to 1 It sounds as if you want the length of the y = ln x curve from x = sqrt(3)/3 (0.57735..) to 1. The formula for the arc length of
63. ## French

Could you please check these thanks. Directions: Complete with either payer or essayer. 1. Vous -------- où? (Payer) Answer: payez 2. On ------ à la caisse. (Payer) Answer: paie 3. Je -------- parce que j'invite. (Payer) Answer: paie 4. Il va -------- la
64. ## English

Need to write whether the verb in Transitive or Intransive. 1. John received a silver trophy. A=trans 2. The judge gave him a check for \$100. A=trans 3. The contestants all played well. Answer=intrans 4. Thomas won a silver plate in a different competion.
65. ## Introduction to Graphic Design

Hello! Thanks for checking my question out! ____ Image URL: goo.gl/3v95A5 Use the image to answer the question. 3. Under which of the following categories does the artwork fall? (1 point) a) abstract painting b) portrait c) still life d) monoprint My
66. ## Language Arts

Directions: Circle the correct form of negative to complete each sentence. 1. I decided that there wasn't (no, any) point in finishing the project. Answer: Circle any 2. I could name (none, any) of the singers we heard. Answer: Circle any 3. The woman left
67. ## Science

How can you describe the location of magnesium (Mg, atomic number 12) periodic table? A. nonmetal B. metalloid C. group2, period3 D. group3, period 2 @Ms.Sue My answer is C. Can you check my answer Thank you
68. ## Anatomy and Physiology

Hello! Thanks for checking my question out! ____ 2. Antibodies to common microorganisms have been developed by (1 point) a) infancy. b) childhood. c) adolescence. d) adulthood. My Answer: A Could someone please check my answer? Thanks! - Da Fash
69. ## Social Studies

Can you check my answer? 2. Legend says that the emperor Nero played a fiddle miles from Rome while the city _______. burned **my answer** flooded starved rebelled
70. ## algebra

If you write a check without enough money in the bank a certain store will charge you a penalty if the check is returned to them from the bank. The penalty is 15% of the amount of the check plus a \$25 processing fee. Let the "n" amount of the check and the
71. ## English

1. This time only the members of Group One can answer the questions. 2. This time only the memvers in Group One can answer the questions. (Which preposition should I use? Can we use both prepositions? Which one is commonly used?) 3. Group One members only
72. ## English

If you answer the question correctly/correct, you will receive a point card which is the same as one point. If you answer the question wrongly/wrong, you won't get a point card. After you get the point card, wirte down your name and number on the back on

1.)Find dy/dx when y= Ln (sinh 2x) my answer >> 2coth 2x. 2.)Find dy/dx when sinh 3y=cos 2x A.-2 sin 2x B.-2 sin 2x / sinh 3y C.-2/3tan (2x/3y) D.-2sin2x / 3 cosh 3yz...>> my answer. 2).Find the derivative of y=cos(x^2) with respect to x.
74. ## Calculus

Use the information in the image: imgur(.)com/a/YzAGLvs (Remove the parenthesis to use link) 1. On what interval is g increasing? Justify your answer. 2. For 0 Ã¢â€°Â¤ x Ã¢â€°Â¤ 6, express g(x) in terms of x. Do not include +C in your final
75. ## math: pre-calculus

Solve the equation. First express your answer in terms of natural logarithms (for instance, z=(2+ln5)/ln3). Then use a calculator to find an approximation for the answer. 3^x+9=2^x.
76. ## Algebra

How do I solve this? The perimeter of a rectangular writing pad is 28 inches. The length is 1 inch less than twice the width. Find the width. Show all work! Translate your English into Math <The length is 1 inch less than twice the width> or L = 2W -

What are the values of the trigometric functions; The choices are 1, -1, 0, undefined. tan(-270degrees) answer: undefined cot(-270 degrees) answer:0 sec(-270degrees) answer:undefined correct
78. ## calculus BC slope

consider the curve in xy-plane by x=e^t and y=te^(-t) for t is greater or equal to o. the slope of the line tangent to the curve at the point where x=3. all the answer choices are decimal points. a is 20.086, b is .342, c is -.005, d is -.011 and e is
79. ## microsoft excell 2007

when working with predefined formulas in excel,what category contains the boolean functions? (a)math and trig (b)recently used (c)logical (d)auto sum my answer is c debbie needs to print her table.which of the following is not an excel print program?
80. ## Linear Equations

Can you check these thanks. Linear Equations Directions: Write each equation in standard form. 1. y=7x-5 Answer: 7x-y=5 2. y=3/8+5 (3/8 is a fraction) Answer: 3x-8y=40 3. x= -2/7y+3/4 Answer: x+14y=12 4. 3y-5=0 Answer: x+3y=0 Find the x-intercept and

1. Find the distance between the pair of points. Round to the nearest tenth is necessary. (-13, -8) and (6, 17) a. 11.4 b. 12.1 c. 31.4 d. 23.7 is the answer c? 2. Find the distance between the pair of points. Round to the nearest tenth, if necessary.
82. ## math

Can you double check my answer for me. The question is Corinne calculated the area of a paper plate to be 50.27 square inches. If the actual area of the plate is 55.42 square inches , what is the relative error in calculating the area, to the nearest

Can you check my answer? 4. Solve. 6 tenths = ___ thousandths Answer = 600 5. Write 347.392 in expanded form. Answer: (3*100)+(4*10)+(7*1)+(3* 1/10) + (9*1/100)+ (2*1/1000) 9. Write in standard form (number name) for: three thousand four hundred eight-two
84. ## Math

your aunt gives you a check on your birthday each year. on your first birthday , she gives you a check for one cent. the next year she gives you 3 cents , then 9. each year she triples the amount of the previous year 's check. how old will you be when she
85. ## Algebra(check pt 2)

1)The first row of -3T. T[4 -5 2] [8 -1 3] answer=[-12 15 -6] 2)The first row of 5P-Q. P[3 1] Q[4 4] [-4 0] [12 21] answer=[11 1] 3)The first row of TV. T[4 -5 2] V[3 1] [8 -1 3] [0 2] [-4 5] answer=not possible 4)The inverse of matrix R. R[0 -1/4] [1 3/4]
86. ## Romeo and Juliet (Check answers pplz hurry)

Could you please check these answers from Act 1 (Review it's only 5 questions) 1.What warning does the Prince issue to the Capulets and Montagues? Answer: The Prince warns to the Capulet's and Montague's is if anyone fights they will be put to death. 2.
87. ## Algebra II repost- please check

I posted these a little while ago but this time I have answered them. 1. Does the graph of y = x – 3x2 + 5 have a maximum or minimum? 2. What is the vertex of the graph of y = -2(x - 3)2 + 4? 3. Does the graph of y = -2(x - 3)2+ 4 open up or down? My
88. ## English

In this exercise I have to choose the best answer. Could you check them. Thanks 1. The supplies were ordered were not the ones we received. A. You should changing, suppliers. B. You ought to change supplies. C. You had better supplies. D. You might want to
89. ## Chem Question?

I answered this question already, but would like you to check if the answer I provided was right. If for some reason my answer was not right please provide me with the right answer. 1)The air in the inner tube of the tire of a racing bike has a pressure of
90. ## Math 8R - HELP! (homework qs. check)

Simplifying Algebraic Expression Using the Distributive Property & Combining Like Terms Simplify: -3 (2+3x) + x - 5 -3(2) + -3 (3x) + x - 5 Answer - 6 + -3(3x) + x - 5 Is the answer is correct??? I'm getting a bit confused and struggling a lot in this
91. ## Health care

Please check my answer thank you :) What is based on per-person premiums or membership fees ? 1. Capitation 2. Fee-for service 3. Medical savings account 4. Retrospective payment system My answer is # 1
92. ## Safety of the young child

The leading cause of death and permanent disabilities due to untentional injury is A.drowning B.falls C.poisoning D.automobile accidents I chose B as my answer. Can someone check my answer.
93. ## Pump power

I have a question in a tutorial, one of these that give the answers in brackets. However, I think the answer given may be wrong. Anyone check this please, if the given answer is correct, how is it worked out. Q A centrifugal pump is required to lift 400 kg
94. ## Calculus Help Please!!! Urgent!!!

If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a proper fraction that is completely simplified as much as possible. d^2y/dx^2= -6x/y^5 (this is the answer I should get but i don't
95. ## Math (Pre-Calculus)

Find an equation of the line containing the points (8,-6) and (8, -4) so far i've tried y-y1=m(x+x1) but currently cannot get the answer....T-T the answer is suppose to be x=8 plz show the work so i can study form it and do it myself the next time... thnx
96. ## French

Could you check these thanks: Directions: Vrai ou Faux? 1. Un film doublé a des sous-titres. Answer: vrai 2. Un film en version originale est toujours en français. Answer: faux 3. Au cinéma, il y plusieures séances le week-end. Answer: Faux 4. On peut
97. ## Math question and answer check

Consider the probability function. (Give your answers exactly.) P(x) = 5 − x 10 , for x = 1, 2, 3, 4 (a) Find the mean. Incorrect: Your answer is incorrect. (my answer was 1). (b) Find the standard deviation. (my answer was 1 also on this one. Please