88,878 results, page 71
1. ## calculus

The graph of f'(x) is shown for 0=< x =<10. The areas of the regions between the graph of f' and the x-axis are 20, 6, and 4, respectively. I'm going to describe the graph of f' since I can't post pictures. The first section of the graph goes up
2. ## Check my work please!

How does subduction change the ocean floor? a) subduction cause magma to accumulate on the ocean floor b) subduction causes oceanic crust to break into pieces c) subduction causes the ocean floor to sink into deep-ocean trenches d) subduction causes
3. ## math (double checking)

I've posted this question before but I forgot to say that I was dealing with polynomial inequalities (not sure if that makes a difference) The question is: Solve the following polynomial inequalities. (9 marks) 4x - 5 ≤ 2(x - 7) x^3 - 5x^2 + 2x
4. ## Calculus

1. Use a graph to estimate the limit. Use radians unless degrees are indicated by θ°. (Round your answer to four decimal places.) lim θ → 0 θ/tan(7θ) 2. Assuming that limits as x → ∞ have the properties for limits as
5. ## Math -algebra (check plz)

ok say i was trying to find y in this equation 2x + 3y + 6z =4392. I was given x=3789-1.5y , and z = -531. so i did the working and ended up with 7578-3y+3y=7578 . If i do the math correctly ill end up with 0y = 7578 :S im pretty confused, can someone
6. ## Statistics

It is known that the amount of time needed to change the oil in a car is normally distributed. A random sample of 100 oil changes yielded a sample mean of 22 minutes and a standard deviation of 5 minutes. Then compared to the interval estimate for the
7. ## English

I did the corrections myself. Can you please check them? I just wanted to know if it is better to say "at Medford Square or in Medford Square, "to leave Turin for Rome", "to leave from Turin and go to Rome", "on" OR "during" our last night in Rome?". I

The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell membrane is restored.
9. ## Probability #2

Baggage fees. An airline charges the following baggage fees: \$25 for the rst bag and \$35 for the second. Suppose 54% of passengers have no checked luggage, 34% have one piece of checked luggage and 12% have two pieces. We suppose a negligible portion of

7. Which of the following six organizing principles are evident in Articles I – III of the U.S. Constitution? Select all that apply. A. Limited government.*** B. Separation of powers. C. Judicial review.*** D. Checks and balances. 8. Which of the
11. ## art

Could you please check my answer please...thank you Which of the following is the best evaluation of the artwork based on the criterion that the piece feature imaginary creatures or things. 1. The artwork is successful because it features a fully clothed
12. ## geometry

1.in which geometry do lines no contain an infinite number of points? (a) plane coordinate geometry (b) discrete geometry (c) graph theory 2. in which geometry do points have thickness? (a) plane coordinate geometry (b) discrete geometry (c) graph theory i
13. ## Health CHECK MY ANSWERS PLS!!

**= my answer 5. An accident chain always contains the A. problem. B. unsafe action. ** C. solution. D. witnesses. 6. (TRUE OR FALSE) By taking safety precautions, individuals can remove some of the opportunity for crimes to occur. A. true. B. false.** 8.

1.¿Comó te sentiste ayer? Yo sentí muy bien. 2. ¿Adonde fuiste ayer? Yo fui al cine. 3. ¿Adonde fue tu mama ayer? Mi mama fue a la tienda. 4. ¿Visitaste a tu familia la semana pasada? Sí, yo visité mi familia la semana pasada. 5. . ¿Donde
15. ## Math

Hi! Can you check my answers to this worksheet? They're the only questions I'm not positive about my answers on. 1. Compared to its parent function, describe the transformation of the following: y = -x3 + 2 A. Reflected with respect to x-axis, moved up 2.
16. ## English

Can you please help me check these sentences? Some of them don't make sense at all.I tried to check some of them though. 1) Brutus has a strong sense of republican liberty 2) Brutus fears what Caesar could (would/may) become if he were crowned. 3) He is
17. ## English

Hi! ____ Ms. Kemp Recruits Volunteers As a new ninth grader at my high school, I was sitting in an assembly about volunteerism. The guest speaker was Ms. Francis Kemp. Today I had an experience worth writing about. I must admit that I did not have high

19. ## Algebra

Hello! I'm looking over one of my tests and trying to see how to do things I got wrong, but I'm having trouble with three of the questions. Here's one of them: A \$1,600.00 principle earns 7% interest, compounded semiannually twice per year. After 33 years,
20. ## Math -- Calculus

Some years from now you are working for a book publisher. Your boss asks you to give him a formula that will tell him the length and width of a book page that contains A square inches of printed text, a left margin of L inches, a right margin of R inches,
21. ## Chem Help

For the reaction, XBr2(g) <--------> X(g) + Br2(g), if a container is charged to an initial concentration, [XBr2] = 2.00 mol/L and the system allowed to react and come to equilibrium, if Kc = 4.0 x 10-8, what is the concentration of X(g) at
22. ## physics

Suppose you are asked to find the area of a rectangle that is 2.1- wide by 5.6- long. Your calculator answer would be 11.76 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two
23. ## Chemistry

Suppose you are asked to find the area of a rectangle that is 2.1- wide by 5.6- long. Your calculator answer would be 11.76 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two
24. ## Physics

x = 2t^3 - 21t^2 + 60t - 30 is the motion of an ant where x is his location on the number line at time t seconds. 1) When is he going to the left? Answer: between 3 to 5 seconds 2) When is he going to the right? Answer: between 0 to 2 seconds 3) What is
25. ## Algebra

1. If m∠1=37º , what is m∠4? a) 53º b) 43º c) 37º d) 27º 2. If m∠1=50º , what is m∠5? a) 50º b) 40º c) 35º d) 25º 3. If m∠4=25º , what is m∠8? a) 105º b) 75º c) 175º d) 25º 4. What is the sum of the
26. ## Chemistry -Dr. Bob

Reacting 1 L of H2(g) with 1 L C2H2(g) (both at STP) results in the formation of 1 L of C2H4(g) if the reaction is maintained at the same conditions (STP) and goes to completion. If this reaction produced 6.3 kJ of heat (absorbed by the surroundings),
27. ## Math...Geometry

Hello, Can someone please tell me if I worked this out correct and ended with the right answer? Thank You... I need to find the area and Height of this right triangle ( only knowing the lengths of its sides)side 6,5,11... Is this correct? sides 6, 5, 11 --

A 1.994 g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temp. above 170 C in a crucible until a constant mass is reached. The mass of anhydrous CaSO4 salt is 1.577 g. Calculate the percent by mass of water in the hydrated

I am given a question where I have to state which combination of electrodes will result in the greatest voltage and which will result in the lowest voltage. The metals given are Zinc, Copper, Silver and Hydrogen I think that silver and copper would give
30. ## spanish Sra JMcGuin

look at dates on calendar and write name of holiday associated with each circled day - then list two things people do on each holiday. sorry it is so late - we went out togehter for my dads birthday - my brothers go ot a diff school and so we do not get to
31. ## Chem Check

Can someone verify my answers please? convert the folowing into a pressure reading expressed in torr A. 1.25atm * 760torr/1.0atm = 950. torr B. 2.48 x 10^-3 atm * 760torr/1.0atm = 1.88 torr C. 4.75 x 10^4 atm* 760torr/1.0atm = 3.61 x 10^7 torr D. 7.60 x

6. The constitutional prohibition against laws respecting an establishment of religion must at least mean that, in this country, it is no part of the business of government to compose official prayers for any group of the American people to recite as part
33. ## cell biology

The production of cAMP directly regulated by two enzyme, ___________ and_______. This former is ___________ a protein, when latter is a _________ protein. a. phospodiesterase (PED),Adenylyl ccyclase(AC), cytosolic, peripheral. b. PDE, AC, peripheral,
34. ## statistics

Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
35. ## Statistics

Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
36. ## behavior problems(dogs)

please check my answer thanks You're contacted by the owners of Abbey, a three-year-old spayed Lab mix. Abbey has a history of biting her owners and visitors. The bites usually occur when the victim reaches for the dog. The owners believe that this problem
37. ## Physics

Write True or False. If False, Explain why! 1. In a position vs. Time graph, a line whose slope is negative represents an object that is slowing down. Answer: I circled True but it's not. Can you explain why my answer is wrong. 2. An object can have a
38. ## math

Can someone help me answer this question? It's combining like terms, my teacher said that the first term is right but the rest is wrong. Question~~ 2x^2y–5xy–7xy–8x^2y+9xy^2 –xy^2 My answer ~~ 2x^2+-8x^2 (2-8)x^2 -6x^2 y+y+y+y (1+1+1+1)y 4y
39. ## MATH

Can somebody show me how to get to the answer? How do 2pi[((-6561/4)+2430-(729/2))-((-1/4)+(10/3)-(9/2))]=2560pi/3. My answer is always= 10184pi/12 or 2546pi/3. I don't know what I did wrong that cause my answer to be wrong.
40. ## Math

#1) Luis stated that when you are converting meters to centimeters your answer will be larger than your original number. My answer is yes because centimeters are smaller . (Is my answer OK ) #2) 8/9 + 1/3= 33/27= 1(12/27)= (I'm stuck here) #3) 6/8-2/6=2
41. ## Middle school algebra

Please help: Problem: 14 divided by a number is 21. What is the number? my teacher says the answer is 2/3 but I don't get that answer. I set it up: 14/n= 21 Then tried solving as: (n/14)(14/n) = 21/14 My answer = 1 1/2 What am I doing wrong? Thank you
42. ## math

Perform each operation, convert to a fraction, & then convert your answer back to a mix number. -4(7/8)x 3(2/3) I did 8*-4+7/8 & got -25/8 then 3*3+2/3 & got 11/3 then i multiplied -25/8* 11/3 & got -275/34 but it's not the right answer, the answer is
43. ## Physic

The position of a mass on a spring is given by x = (7.6 cm) cos [2 π t / (0.82s)]. Where is the mass at t = 3.1 s? (Answer: 1.45cm) Answer is provided above. Please show all work on how to get the answer. Thank you.
44. ## Math

Hello, I need to know if I have the right answers to these questions. 2x-y=3 question is which of the following points lie on the line. is the answer 0,3 (-1,1) (2, 1) (-3, 1) (-3, ) or (1, 2) I chose the answer (-3, 1) is that right, second question: If
45. ## Math

So she saw 461 dolphins that are 5 year so we don't need to estimate on this problem. So I did 461/5 is 92 is the answer. Then the said how many did he spot per summer in the 5 summers he worked so I think we need to divide the answer which is 92 and the
46. ## math correctionplz

can someone correct these also for me.. Which of the following is not a polynomial? a) 24 b) 4x^3+5x-1 c)2x-(1)/(x) d)3xy^2+xy MY answer is: A Simplify. write your answer with only positive exponents (y^5)/(y^10) Possible answers: a)y^2 b)(1)/(y^2)
47. ## Statistics

Check my answers please! Thanks a lot. Five students reported that the previous night they slept: 7,8,7,10,9 hours. Calculate the sample varience and standard deviation. sample varience = 1346.5 standard deviation = 36.7 Consider this. Ths standard
48. ## Algebra2 (Please Check My work)

Will you please check my work for me. 1)The equation of a parabola is shown. y=1/14X^2. What are the coordinates of the focus? (0,3.5) <---- (0,-4) (0,7) (0,-3.5) 2)The equation x2 + (y + 3)2 = 36 models the boundary on a local map for which Darren can
49. ## american history

What was the significance of the closing of the Silk Road? It gave Europeans the incentive to establish new overland trails into territories in Asia. It inspired Europeans to discover the hidden secret of creating their own silk textiles. It encouraged
50. ## AP Calculus

If f(x)=3x^2-x+2 then what is 2f(a)? What is f(2a)? What is f(a^2)? What is [f(a)]^2? What is f(a+h)?

3x^2+x+2=0
52. ## Calculus

dy/dx+((2x+1)/x)y=e^-2x
53. ## calculus

If x2+xy=10, then when x=2, dy/dx=?
54. ## Calculus

F(x) = -6x^8 F'(x)= y= 7e^x + 2 y' =
55. ## calculus

t(x)=((x+4)^0.1-5x)^-5.1

Let f(t)=(t^2+3t+8)(2t^2+6). (a) f'(t)= (b) f'(4)=
57. ## Calculus

if x^2 + y^3 = (x^3)(y^2) then dy/dx = ? thanks
58. ## calculus

f'(x) = (x^2-1)/x
59. ## Calculus

¡ì(up:1 down:0) (x^3 dx)/(x^2+2x+1)

f'(x^2)^2=?
61. ## calculus

i)f(x)=(x^3 + -x^2 )(x^2 + 2)
62. ## Brief Calculus

if s''(t)=((-)1/4t^3/2) +8 Then what is s''(16)?
63. ## calculus

if dy/dt=-3y and if y=1 when t=0, what is the value of t for which y=1/3?
64. ## Calculus

(3x-4)e^x2-6=0
65. ## calculus

f(x)=(x+2)^3+(x-1)^4
66. ## calculus

F(x)= ((x^2+2x)/(x^2-1) )^3 *(3x^2 – 2x + 4)^5
67. ## calculus

f(12)=15 and f(5)=6 f(x)=
68. ## calculus

f(x+k,y)-f(x,y)/k when f(x,y)=4x^2y
69. ## calculus

If g'(x)=2g(x) and g(-1)=1, then g(x)= a)e^2x b)e^-x c)e^(x+1) d)e^(2x+2) e)e^(2x-2)
70. ## calculus

f(x)=1-3x when f(x)-f(1)/x-1

-7-2
72. ## calculus

F(x)= ln ((3t + 1)^4 / (2t + 1)^3) F'(x)=

X2-7x-12/x-2
74. ## Calculus

Let f(x) = ln(((2x–5) / (7x+4))^(1/2)). f'(x) = ...
75. ## calculus

dh/dx x = 7 , h (x) = (x^-1/2 + 8x)(4 - x^-1)
76. ## Calculus

y = ln(3x+5), then d^2y/dx^2 = a. 3/(3x+5) b. 3/((3x+5)^2) c. 9/((3x+5)^2) d. -9/((3x+5)^2) e. -3/((3x+5)^2)
77. ## Calculus

why does ln(1/x)= -1/x ?
78. ## Calculus

-4=(5/2) x 3-b
79. ## Calculus

ln(x+8)+ln(x–8)=0 x=?
80. ## calculus

d/dx (16-3x- 1/2x^2)= ? I got dy/dx= -3 - x

xy-6=0;(2,3)
82. ## calculus

x+4/5 + 5-x/4=37/10
83. ## calculus

i)f (x)=x^3 + -x^2
84. ## AP Calculus

[(3/x)-(4/y)]/[(4/x)-(3/y)]

I=g^2/da

6e^3t=9e^2t
87. ## Calculus

(3x-4)e^x2-6=0
88. ## calculus

d^2/dx^2(q(x))-5*(d/dx(q(x)))+6*q(x)=0
89. ## calculus

4(x*3)=2(x-4)+25
90. ## calculus

F(x)= ln((3x+6)^4 (x^3 -2)^5 ) F'(x)=
91. ## calculus

x = 6 h(x) = (x-1/2 + 5x)(1 - x-1)
92. ## Calculus

What is y' of y=(x-1)^(1/2)/(x-3)^(1/2)?
93. ## calculus

f(x)=x^2-3x+1/x^2
94. ## calculus

How do you do it
95. ## Calculus

y= (t^3 + t)/(t^4 - 2) y'=
96. ## calculus

I really appreciate all of your help!
97. ## calculus

f(x)=2x^2-x g(x)=3x+2 f*g= g*f= f*f= g*g=
98. ## Calculus

If y=ln((3x+2)^6(x+10)^3), then dy/dx=

1.
100. ## calculus

f(x)=(1+x) what is f'(x) when x=0