# Posts by George

Total # Posts: 1,136

1. ### Elementary Math

So then Ms. Sue what is the answer though? D? I'm confused?
2. ### Elementary Math

Decide which of the variables described is likely to have a normal or near-normal distribution. a. The number of courses remaining until graduation for the students in a small liberal arts college b. The SAT mathematics scores for students in an advanced placement mathematics ...
3. ### MTH 156

thank you PsyDAG
4. ### MTH 156

"Emergency Please Help"!!!!! A bus is scheduled to stop at a certain bus stop every 45 minutes. At the end of the day, buses still stop after every 45 minutes, but because delays often occur earlier in the day, the bus is never early and likely to be late. The ...
5. ### Basic Math

i have worked it I got the answer like you I guess I just need to go with what you and I got right?
6. ### Basic Math

Reiny this are my mult. choice that I need to choose from I'm studying for my exam for next week. A) 204 : 13 B) 191 : 13 C) 13 : 204 D) 13 : 191
7. ### maths

ques1)43% of 50, 14%of30, 23%of71 ques2)18 children in a class have brown eyes- that is 60%of the class with brown eyes. How many children are there in total in the class.
8. ### Characteristics of Interpersonal Communication

In this scenario, assume the role of a student. You have read assignment details in your course syllabus, but you are still unsure what to do. Think about how you would approach your instructor versus how you would approach a classmate to receive more information about the ...
9. ### math

IT included a monthly center fold
10. ### Math

Shipping department must send 50 cases of ice cream . five stores will receive ten cases each. How much are Left
11. ### Algebra 2

I need some help with my radical equations. I would really appreciate some aassistance.
12. ### Algebra 2

Can someone helpe me solve this equation . Help me break it down please..becuase i have tried to do it mnay times but have fallen short... [SQRT(x + 3)] - [SQRT(x - 2)] =1

[ãv(2x+2) - ãv(x-3)][ãv(2x+2) - ãv(x-3)] = 4

15. ### ALgebra

Can someone help me foil this equation? [ã(2x+2) - ã(x-3)][ã(2x+2) - ã(x-3)] = 4
16. ### Physics

Sorry for rewording it wrong. After 35 minutes of jogging, at the 9-km point in a total 10-km race, jogger A is behind the leader and moving at the same speed. What would have to be Jogger A's accelearation in order to catch up to the finish line? Assuming the leader ...
17. ### Physics

After 35 minutes of jogging, at the 9-km point in a total 10-km race, jogger A is behind the leader and moving at the same speed. What would have to be your accelearation in order to catch up to the finish line? Assuming the leader maintains a constant speed the rest of the ...
18. ### Physics

After 35 minutes of jogging, at the 9-km point in a total 10-km race, jogger A is behind the leader and moving at the same speed. What would have to be your accelearation in order to catch up to the finish line? Assuming the leader maintains a constant speed the rest of the ...
19. ### Physics

After 35 minutes of jogging, at the 9-km point in a total 10-km race, jogger 1 is behind the leader and moving at the same speed. What would have to be your accelearation in order to catch up to the finish line? Assuming the leader maintains a constant speed the rest of the ...
20. ### Physics

A ball moves at 33m/s through a wall of donuts 31 cm thick. It comesout of the donut wall at 18 m/s. How much time does it spend in the wall of donuts? How thick would the wall of dounts need to be to stop the ball entirely? Is the answer 1.3 secondsand the wall would need to ...
21. ### Physics

If a fighter jet touches the runway at 220km/h, then decides to brake, and finally comes to a stop at 31 seconds later. What is the shortest runway the fighter jet can land, assuming constant deceleration starting at touchdown? Is the answer 570 meters or am I just totally off
22. ### Physics

A jet powered car leaves from Georgia to Virginia , 4600 km away. It goes 1010 km/h. At the same time another jet powered car drives from Virginia to Georgia, but it only goes 750 km/h. Where do the two jet powered cars pass each other? Km from Georgia, use two sigfigs. I say ...
23. ### Physics

You gave yourself 35 min to drive 23 miles to the party, but you are caught in traffic and average 20 miles/hour for the first 15 min. What is your average speed for the rest of your journey to the party. I am lost any help in approaching the problem wouldbe great.
24. ### Physics

Is the average velocit over a specific timeinterval always half of the instantaneous velocity at the end of the interval. I said False, because if the curveis not linear this would not be true. Would this be a a sufficent answeror am I missing anything.
25. ### ALGBERA

Can you help me set it up please?

Thanks!
28. ### Math

Given a polynomial and one of its factors, find the remaining factors of the polynomial. Some of the factors may not be binomials. 169x^3-1690x^2-9x+90; x-10
29. ### Math(Algebra 2)

Also, if someone is still avalibe the problem is asking me to factor 2a^2-32
30. ### Math(Algebra 2)

Wait actually I meant to put a^2+4a+21 would the answer be a+7 a+3?
31. ### Math(Algebra 2)

yeS I did mean to write it the way you put it. Thank you. For the second problem, if I do this 2a^2=32 /2 a^2=16 /^2 a=4?
32. ### Math(Algebra 2)

by the way thats 2a^2 squared and a^2 squared. Thanks.
33. ### Math(Algebra 2)

All of these are different problems. Please help me. IF you only know one answer to just one problem, that is totally welcome as well. THank you. 5 > |x | + 1 2a2-32 a2 + 4a + 21

Thank you.
35. ### American History

July 30,31st 1977, Sept 10, 1977 Those are the only ones
36. ### American History

The letters she wrote to her husband John Adams
37. ### Economy

Need help here plz. In a private closed economy, if aggregate expenditures equal GDP, then... A = Consumption equals investment B = Planned investment equals to saving. C = Disposable income equals consumption minus saving D = Consumption equals aggregate expenditures.
38. ### Physics

John is carrying a shovelful of snow. The center of mass of the 3.00 kg of snow he is holding is 15.0 cm from the end of the shovel. He is pushing down on the opposite end of the shovel with one hand and holding it up 30.0 cm from that end with his other hand. Ignore the mass ...
39. ### Chem

will Ne or Xe have a higher boiling point? why?
40. ### calculus

a box with no top is to be built by taking a 12''-by-16'' sheet of cardboard and cutting x-inch squares our of each corner and folding up the sides. find the value of x that maximizes the volume of the box
41. ### Chemistry

What does fluoride ion have in common with a neon atom and a sodium ion?
42. ### Chemistry

h h h h | | | | h---c--C====c---c---h | | | | h h h h This is 2-butene where do I insert the HI for hydroiodic aci?
43. ### Chemistry

What would be the whole name of 2-butene and hydroiodic acid. Or the diagram. h h Any help would be greatly appreciated.
44. ### Chemistry

What is another name or diagram of 2-butene and hydroiodic acid. Any help would be greatly appreciated.
45. ### Chemistry

What is another name ordiagram of 2-butene and hydroiodic acid. Any help would be greatly appreciated.
46. ### physics

Determine the tangential speed of a point .4 m from the center of the wheel?
47. ### Chemistry

You have the alkane C7H16. What is the IUPAC name. I tried heptane and 4-ethyl-3-methylheptane, but it still says my answer is wrong. What would be the answer then.
48. ### Chemistry

You have the alkane C7H17. What is the IUPAC name. I tried heptane and 4-ethyl-3-methylheptane, but it still says my answer is wrong. What would be the answer then.
49. ### Chemistry

You have the alkane C6H17. What is the IUPAC name. I tried heptane and 4-ethyl-3-methylheptane, but it still says my answer is wrong. What would be the answer then.
50. ### Chemistry

Two people were given 1.75 g salicylic acid and 2.00 mL of acetic anhydride. If the density of acetic anhydride is 1.0820 g/mL, how many grams of aspirin could they have prepared. Is the answer 4.7 g
51. ### Calculus

What is the local linearization of e^x^2 near x=1? Is the answer 1+2x
52. ### Calculus

A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another mile, it is going 80 mph, and the plane has traveled another 5 miles and is going 500 ...
53. ### Calculus

A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another 5 miles and is going 500 mph. At that moment, how fast is the distance between the ...
54. ### Hard Calculus

Is the answer then -4 x 10^-13
55. ### Hard Calculus

The gravitational force, F, on a rocket at a distance, r, from the center of the earth is given by F=k/r^2 where k = 10^13 newton • km2. When the rocket is 10^4 km from the center of the earth, it is moving away at 0.2 km/sec. How fast is the gravitational force changing ...
56. ### Hard Calculus

Is the answer for part B -1C
57. ### Hard Calculus

A dose, D, of a drug causes a temperature change, T, in apatient. For C a positive constant, t is given by T=((C/2)-(D/3))D^3. (a) What is the rate of change of temperature change with respect to dose. (b) For what dose does the temperature change increase as the dose ...
58. ### Math Word Problem

At 6am a few bacteria fall into a can of syrup in a broken garbage bag. The conditions of warmth, moisture, and food are perfect for growth and the population doubles every 20 minutes. By 6pm the bacteria are overcrowded and dry and their food is gone.At what time does the ...
59. ### Calculus

The gravitational force, F, on a rocket at a distance, r, from the center of the earth is given by F=k/r^2 where k = 10^13 newton • km2. When the rocket is 10^4 km from the center of the earth, it is moving away at 0.2 km/sec. How fast is the gravitational force changing ...
60. ### Calculus

A dose, D, of a drug causes a temperature change, T, in apatient. For C a positive constant, t is given by T=((C/2)-(D/3))D^3. (a) What is the rate of change of temperature change with respect to dose. (b) For what dose does the temperature change increase as the dose ...
61. ### Calculus

(A) Find the equations of the tangent lines to the circle x^2 +y^2=25 at the points where x=4. (B) Find the equations of the normal lines to this circle at the same points. (The normal line is perpendicular to the tangent line at that point.) (C) At what point do the two ...
62. ### Calculus

(a) Find dy/dx given that x^2+y^2-4x+7y=15. (b) Under what conditions on x and/or y is the tangent line to this curve horizontal? Vertical? For part A, I simplifid it to -(2x+4/2y+7) For part B,I am confused on what to do?
63. ### Implicit Functions

Find the slope of the tangent to the curve at the point specified. x^3+5x^2y+2y^2=4y+11 at (1,2) So far I simplified it to -(3x^2-10y/5x^2+4y-4) which I think then simplifies to -(8/3). What do I do from here....?
64. ### Calculus

Suppose f(x) is differentiable at x=a. What does tangent line approximation, y=, mean? Select all that apply (A) Local linearization (B) y=f(x)-f(a)-f'(a)(x-a) (C) The best liner approximation of f(x) near a (D) After zooming y is a good approxiamtion to f(x) (E) f(x)~y=f(...
65. ### Calculus

Suppose f(x) is differentiable at x=a. What does tangent line approximation, y=, mean? Select all that apply (A) Local linearization (B) y=f(x)-f(a)-f'(a)(x-a) (C) The best liner approximation of f(x) near a (D) After zooming y is a good approxiamtion to f(x) (E) f(x)~y=f(...
66. ### Calculus

Suppose f(x) is differentiable at x=a. What does tangent line approximation, y=, mean? Select all that apply (A) Local linearization (B) y=f(x)-f(a)-f'(a)(x-a) (C) The best liner approximation of f(x) near a (D) After zooming y is a good approxiamtion to f(x) (E) f(x)~y=f(...
67. ### Calculus

Find dy/dx of the function 10x^2+4y^2=sqrt(7). Is the answer 20x+8y=0
68. ### Derivatives

Find dy/dx for the function, xy-x-12y-3=0. Is the answer -14,I got this from 1-1-12=0, which solves to -14.
69. ### Calculus

Suppose f(x) is differentiable at x=a. What does tangent line approximation, y=, mean? Select all that apply (A) Local linearization (B) y=f(x)-f(a)-f'(a)(x-a) (C) The best liner approximation of f(x) near a (D) After zooming y is a good approxiamtion to f(x) (E) f(x)~y=f(...
70. ### Calculus

(a) Find the tangent line approximation for sqrt(9+x) near x=0. (b)Find a formula for the error, E(x),in the tangent line approximation found in part (a). For part A, is the answer y=3. For part b, I don't understand , any help would be greatly appreciated.
71. ### Calculus

Find the derivative of 10x^2+4y^2=sqrt(7). Is the answer 20x+8y=0
72. ### Calculus

Find the derivative of the function, xy-x-12y-3=0. Is the answer -14,I got this from 1-1-12=0, which solves to -14.
73. ### Calculus

According to the US Census, the world population P, in billions, is approximately P=6.342e^(0.011t); where t is in years since January 1, 2004. At what rate was the world's population increasing on January 1, 2005? Give your answer in millions per year. Is the answer 6412 ...
74. ### Engineering/Algebra

A cardboard tube has a failure stress of 4,960,000 N/m^2 and an axial stress of 75 N/cm^2, find the factor of safety of the tube. Is the answer 66133.33
75. ### Engineering/Algebra

A cardboard tube is loaded with a 15.3 N axial load. The tube has an outside diameter of 2.5 cm and a wall thickness of .035 cm. Find the axial stress in the cardboard tube. Is the answer 75 N/cm^2? If so can you show me your way of getting to this answer.
76. ### Engineering/Algebra

A balsa wood glider wing has the following properties during flight: Thickness= 0.3175 cm I= 0.0733 cm^4 Moment= 4.2 N-cm Find the bending stress in the wing. Express your answer in N/m^2. Is the answer either 9.096 N/m^2 or 18.192 N/m^2
77. ### Engineering/ Algebra

A balsa wood glider wing has the following properties during flight: Thickness= 0.3175 cm I= 0.0733 cm^4 Moment= 4.2 N-cm Find the bending stress in the wing. Express your answer in N/m^2. Is the answer either 9.096 N/m^2 or 18.192 N/m^2
78. ### Engineering/ Algebra

A balsa wood glider wing has the following properties during flight: Thickness = 0.3175 cm I = 0.0733 cm^4 Moment = 4.2 N-cm Find the bending stress in the wing. Express your answer in N/m^2. Is the answer 9.09 N/m^2 or 18.19 N/m^2
79. ### math

what percent is 23 students out of 51 students and how do you solve it
80. ### Algebra

keep it clean here.
81. ### Calculus

Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Would this be a good explanation? The process of global optimization refers to ...
82. ### Calculus

Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Does this have to do with the first derivative rule or second derivative rule ...
83. ### Calculus

A rectangular beam is cut from a cylindrical log of radius 30 cm. The strength of a beam of width w and height h is proportional to wh^2. Find the width and height of the beam of maximum strength. Is the width 45 and the height 20.
84. ### Calculus

A rectangular swimming pool is to be built with an area of 1800 square feet. The owner wants 5-foot wide decks along either side and 10-foot wide decks at the two ends. Find the dimensions of the smallest piece of property on which the pool can be built satisfying these ...
85. ### Calculus

Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Does this have to do with the first derivative rule or second derivative rule ...
86. ### Calculus (Global Max)

Explain the global optimization process for a continuous function over a closed interval. Be sure to identify all steps involved and clearly explain how the derivative is utilized in this process. Does this have to do with the first derivative rule or second derivative rule ...
87. ### Calculus

The hypotenuse of a right triangle has one end at the origin and one end on the curve y=x^(7)e^(-7x) , with x greater than or equal to 0. One of the other two sides is on the x-axis, the other side is parallel to the y-axis. Find the maximum area of such a triangle. Round your...
88. ### Calculus

Find a forula for the following function. A line with slope 5 and x-intercept 10 is the answer y(x)= 5x-50
89. ### Calculus

Find a formula for the following function. A parabola opening downward with its vertex at (6,1) and y -intercept equal to -35. (y-1)^2=4(-35)(x-6) Please help
90. ### Algebra

Find a forula for the following function. A line with slope 5 and x-intercept 10 is the answer y(x)= 5x-50
91. ### Calculus

Use analytical methods to find the exact global maximum and minimum values of the function f(x)=8x-ln(4x) for x >0. If a global maximum or minimum does not exist, enter the word NONE. For the global maximum at x=none, But for the Global minimum at x=? Is the Global minimum ...
92. ### SCIENCE

WATS THE REACTION BETWEEN IRON AND SULPER AND WATS THE ENERGY BETWEEN THEM
93. ### math

Is anyone familar with Sharon Wells Math? How do you solve a word problem using their program?
94. ### Social Studies

Rain can collect easily in a dried out waterbed called a _____________
95. ### Calculus

f(x)=x^3(x^(4)-8) Find f '(x) by multiplying out before taking the derivative Is the answer x^12+-8+x^12-8x^3 simplified to 2x^12-8x^3+-16
96. ### Chemistry

Alexander, who weighs 159lbs , decides to climb Mt. Krumpett, which is 5460ft high. For his food supply, he decides to take nutrition bars. The label on the bars states that each 100g bar contains 10g of fat, 40g of protein, and 50g of carbohydrates.Alexander wants to know ...
97. ### Chemisrty

I am getting 22.6, but it says that is the wrong answer. 450*2000*4.18=3762000 159*5460*9.8=8507772 I am setting them equal to eachother and getting 2.26, but it says the answer is wrong. Please help.
98. ### Chemisrty

Alexander, who weighs 159lbs , decides to climb Mt. Krumpett, which is 5460ft high. For his food supply, he decides to take nutrition bars. The label on the bars states that each 100g bar contains 10g of fat, 40g of protein, and 50g of carbohydrates.Alexander wants to know ...
99. ### Chemistry

Alexander, who weighs 159 , decides to climb Mt. Krumpett, which is 5460 high. For his food supply, he decides to take nutrition bars. The label on the bars states that each 100- bar contains 10 of fat, 40 of protein, and 50 of carbohydrates.Alexander wants to know exactly how...
100. ### Chemisty

Is it 450 calories I don't know what you mean by 2mgh
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