gary

Most popular questions and responses by gary
1. Calculus

Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2), with x ≠ 2. a.Find all values of x where the graph of g has a critical value. b.For each critical value, state whether the

2. Chemistry

The half-life for the process 238 U --> 206 Pb is 4.5*10^9 yr. A mineral sample contains 66.0 mg of 238 U and 16.0 mg of 206Pb. What is the age of the mineral?

3. Calculus

For which pair of functions f(x) and g(x) below will the lim f(x)/g(x)equal 0 x-infinity f(x) e^x; g(x) = x^3 f(x) x^5; g(x) = e^x f(x) x^3; g(x) = ln(x) f(x) x^negative 2; g(x) = e^negative x

4. poetry (Pioneer by Dorothy Livesay)

I have to answer the questions according to this poem, I have answered them but just want someone to look over them to see if they are right. The last one I had trouble with and need help on that one too. The answer that I think it is I have put arrows on

5. Physics

A stone is dropped from the top of a cliff. The splash it makes when striking the water below is heard 3.5 s later. How high is the cliff

6. Calculus

If f is a function such that [(f(b)-f(a))/(b-a)]=2 , then which of the following statements must be true? a.f(a) = f(b) = 2 b.The slope of the tangent line to the function at x = a is 2. c.The average rate of change of the function on the interval [a, b]

7. math

The height of a cylinder with a fixed radius of 10 cm is increasing at the rate of 0.5 cm/min. Find the rate of change of the volume of the cylinder (with respect to time) when the height is 30cm.

8. math, physics

The driver of a car traveling at 60 ft/sec suddenly applies the brakes. The position of the car is s(t) equals 60t minus - 1.5t^2, t seconds after the driver applies the brakes. How many seconds after the driver applies the brakes does the car come to a

9. Calculus

The local linear approximation of a function f will always be greater than or equal to the function's value if, for all x in an interval containing the point of tangency f '(x) < 0 f '(x) > 0 f "(x) < 0 f "(x) > 0

10. Statistics

A production line operation is designed to fill cartons with laundry detergent to a mean weight of 32 ounces. A sample of cartons is periodically selected and weighed to determine whether underfilling or overfilling is occurring. If the sample data lead to

11. algebra-what catastrophe makes a kitten happy?

what catastrophe makes a kitten happy? OPTION : LET, CHAIN, THE , HAVE, CAT, CRY, ONE,OUT, OVER , LITTLE, DOG, SPILT, NEW, OUTSIDE, MILK, OLD.

12. poetry

The poem is: Canada Day Love Match My mother stalked her future son in law, convinced he was the one for me. Through the crowd at the Forks Market, she kept behind him like a cat ready to pounce. I kept out of his line of sight. Blind to us, he watched

18. Chemistry

If each balloon is filled with carbon dioxide at 20 deg. C and 1 atmosphere, calculate the mass and the number of moles of carbon dioxide in each balloon at maximum inflation.

19. math

A. A woman was 30 years old when her daughter was born.Her age is now 6 years more than three times her daughter's age. How old will the daughter be in 5 years? B. Lisa is 15 years old and her father is 40. How many years ago was the father six times as

20. math

Each rabbit constume needs one and one half yards of white fur fabric. a yard of blue striped fabric, and a quarter of a yard of pink felt for the ears. If Gail has ten yards of white fur fabric, seven yards of blue striped fabric, and one and three

21. chemistry

The laboratory technician accidentally mixed NaHCO3 with BaCl2*2H2O instead of KCl when preparing unknown mixtures for this experiment. How would this mistake affect the calculated percentage of NaHCO3 in the mixture? Justify your answer with an

22. Calculus

A population of 1200 badgers grow by 6% every 8 years. How long does it take the population of badgers to grow 2000?

23. Math

A farmer has 2,400 feet of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence along the river. Write the function that will produce the largest area if x is the short side of the rectangle.

24. Math

provide one of the two positive integers whose sum is 200 and whose product is a maximum.

25. trig

The centers of two belt pulleys, with radii of 3 cm and 6 cm, respectively, are 13 cm apart. Find the total area K enclosed by the belt.

26. English

how do you write a telling sentence

35. Math

In a concert hall, 60% of the seats were taken. 520 seats were empty. What is the total number of seats in the concert hall?

36. math

Maya chatted online with all her friends for 2/3 of an hour on saturday and 1/4 of an hour on sunday.During that time period she chatted with Paul for 1/8 of an hour. What fraction of the time Maya spent chatting with her friends online was spent chatting

37. economics

18. (Shifts in the PPF) Terrorist attacks foster instability and may affect productivity over the short and long term. Do you think the September 11, 2001, terrorist attacks on the World Trade Center and the Pentagon affected short- or long term

38. math

write the fraction 9/100th as a percentage

39. math

what is my number? Clue 1 My number is a multiple of 5,but it does not end in 5. Clue 2 The prime factorization of my number is a string of three numbers. Clue 3 Two of the numbers in the prime factorizations are the same. Clue 4 My number is greater than

40. Calculus I

Let A be the area of a circle with radius r that is increasing in size with respect to time. If the rate of change of the area is 8 cm/s, find the rate of change of the radius when the radius is 3 cm.

41. math

A. John is now 10 years older than Marcus. Three times John's age 5 years from now will be the same as five times Marcus's age 5 years ago. How old is John now? B. In 1 year Kristen will be four times as old as Danielle. Ten years from then Kristen will

42. Math

Eye radius of category 5 cyclones is 20Km. What is the probability that any randomly selected category 5 cyclone will cross the Qld coast such that the eye wall of the cyclone will pass over Cairns which is on a 3200Km section of Qld coast? Cyclones

43. math

a mother wants to divide 680.00 among her children according to the ratio 2:4:6

44. politcal science

In Washington's Farewell Address, what type of policy did he advocate when dealing with foreign countries? Question 6 options: Complete isolation for all foreign countries Extensive treaties with other countries Expansion of US power over foreign countries

45. math

A box contains 300 colored paper clips. Tony pulled 25 paper clips out at random and found 6 pink, 4 white, 10 yellow, and 5 blue clips in the sample from the data. Tony predicts there are about 150 yellow paper clips in the entire box. Ia tony's

46. Managerial Finance

Jefferson Products, Inc., is considering purchasing a new automatic press break, which costs $300,000 including installation and shipping. The machine is expected to generate net cash inflows of$80,000 per year for 10 years. At the end of 10 years, the

47. Math

If 1,200 cm^2 of material is available to make a box with a square base and an open top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter.

48. Gen.Chem. 111

what happens when HCl is added to CoCl2*6H20? and what happens when you add AgNO3 to the product?

49. math

Express each ratio as a unit rate.Round to the nearest tenth, if necesary. A: 400 feet in 52.4 seconds B: 184 meters in 38 seconds

50. Calculus

True or False If f is continuous at x = c, then f is differentiable at x = c.

51. Calculus

1) A rectangular page is to contain 16 square inches of print. The page has to have a 2-inch margin on top and at the bottom and a 2-inch margin on each side. Find the dimensions of the page that minimize the amount of paper used. 2) A rectangular garden

52. math

Oregon is about 400 miles from west to east, and 300 miles from north to south. If a map of Oregon is 15 inches tall ( from north to south), about how wide is the map?

53. physics

A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 20.6 m above the top of the cliff before falling to the base of the cliff, landing 6.44 s after it was thrown. How high is the cliff?

54. geometry

BA is perpendicular to BD. Angle ABE measures 17 degrees and angle DBC measures 54 degrees. Fine the measure of angle EBC.

55. physical

Part A Each blade on a wind turbine is engineered to produce an effective force through its center of mass that is perpendicular to its long axis. (Part A figure) The magnitude of the force produced by each blade in a wind of speed v is F=(40.0~{\rm

56. Algebra 2 -math

WHAT CATASTROPHE MAKES YOUR KITTEN HAPPY?

57. Statistics

Suppose a random family of four is selected (two parents and two children). Suppose further that you are told one of the two children is a girl. Given that this family has at least one daughter, what is the conditional probability that it also has a son?

58. math

1. List the terms in the expression below, place a comma between each term. 19cd + 6d^2 + 8 2. List the coefficients in the expression below, place a comma between each coefficient. -7y + 13ab^2 + x

59. English3

In “The Turtle” from The Grapes of Wrath, how does the stem of the wild oat seeds use the turtle to carry it to a place where it can grow?

60. physics

A car is traveling along a straight road at a velocity of +32.7 m/s when its engine cuts out. For the next 1.04 seconds, the car slows down, and its average acceleration is . For the next 5.23 seconds, the car slows down further, and its average

61. politcal science

Who is the only third-party candidate to win more than 25% of the popular vote? Question 7 options: Millard Fillmore Theodore Roosevelt George Wallace Ralph Nader

62. Math

What is the answer to ( what is the combined height of 3 nickels, 2 nickels, and 1 nickel?

63. math

Would the answer be 2000 to this? with 1,200 i got 4,000? If 600cm^2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cubic centimeters.

64. algebra

An artifact was found and tested for its carbon-14 content. If 75% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has a half-life of 5,730 years.) thank you

65. Statistics !

Hi I have calculated some statistics using a spreadsheet program and I have to compare three slopes of regression and their significance level in an energy species hypothesis.. -2.11 level of significance is 5% -4.73 level of significance is 1% -4.13 level

66. Chemistry

Give the molecular formula for the following: 1)Methoxy methane 2) Methoxy Ethane 3) Ethoxy ethane

67. physics

A boat sails 5.0(45 degrees W of N). It then hanges direction and sails 7.0km(45 degrees S of E) where does the boat end up with reference to its starting point.? Please explain steps answer is 2km(45 degrees S of E)

68. chemistry

would it be: O.2576/0.7086=0.3635 0.3635 X 87.65= actual yield? A 2.30-mL sample of methane gas (density 0.112 g/cm3) was completely combusted. If the percent yield of each of the combustion products is 87.65%, calculate the actual yield in grams of carbon

69. College Chemestry

an agueous solution of ethlylene glycol (C2H6O2) is 40% ethylene glycol by mass, and has a density of 1.05g/ml. What are the molarity, molality, and mole fraction of the solution? Do you know how to solve this...I am kinda lost..please help

70. Chemistry

4.80 dm^3 of chlorine gas was reacted with NaOH solution. a) how many moles of Cl2 reacted b) what mass of NaOCl was formed? c) if the concentration of the NaOH was 2.00 mol/dm^3. What volume of sodium hydroxide solution was required? d) write an ionic

71. math

A. Mandy buy a sweater that is on sale for 20% less than the original price, and then she uses a coupon worth an additional 15% off of the sale price. What percentage of the original price has she saved ? B. If the price of a stock increases by 40% and

72. math

a spinner has four equal parts marked 1-4, another spinner has 3 equal parts colored red, blue and yellow. What are all the possibe outcomes?

73. finance

New project analysis You must evaluate a proposal to buy a new milling machine. The base price is $108,000, and shipping and installation costs would add another$12,500. The machine falls into the MACRS 3-year class, and it would be sold after 3 years for

74. math

A. One board is one-third the length of another. Six times the sum of the length of the short board and -10 is equal to the length of the longer board decreased by 11 inches. Find the length of the longer board. B. The length of a rectangle is 4 feet more

75. math

x=6y/5-8y-3y+9y,what is the value of y in terms of x ?

76. social studies

Type of movement of the plates that created the landform 1. mountanis 2. valleys 3. plains 4. islands 5. deserts 6. plateaus

77. physics

A VW Beetle goes from 0 to 59.0 mi/h with an acceleration of +2.35 m/s2. (a) How much time does it take for the Beetle to reach this speed? (b) A top-fuel dragster can go from 0 to 59.0 mi/h in 0.700 s. Find the acceleration (in m/s2) of the dragster.

78. math

Mrs. Cindy needs to order new balls for the school students to use at recess. She asks the students what balls she should order. One-third of the students want Mrs. Cindy to order soccer balls. One-third of the students want Mrs. Cindy to order

79. Math

My seven year old was set this question and I was asked to solve. Help please. Here is the question: My number has 5 tens. The ones digit is less than the tens. What could the number be? My solution was 5 x 10 = 50. Then subtract 1 from the tens = 49 is

80. POLS210 D001

Please I am in desperate need of finding the answer to pop quiz 4,6,and 8 please is there anyone out there that could help me.

84. math trigonometry

At night, a security camera pans over a parking lot. The camera is on a post at point a which is 53m from point c and 71 m from point b.the distance from B to c is 68m. Calculate the angle through which the camera pans

85. math

The base of the lamp of a triangular prism with an equilateral triangle base . The surface of the stand is to be painted.what is the area that will be painted?Give the answer to the nearest whole number.

86. math

Each lettter in the word UTICA was written on a slip of paper.One slip of paper was chosen without looking. Vowels are the letters A,E,I,O and U.What is the probability that the letter written on the chosen slip of paper was a vowel?

87. Math (venn diagram)

120 students were surveyed about their food preferences. 62 liked pizza,75 liked burgers and 48 liked tacos. 15 liked all three. 93 liked pizza or burgers, 96 liked burgers or tacos, and 88 liked pizza or tacos. a) construct a venn diagram that will

88. chemistry

A 2.30-mL sample of methane gas (density 0.112 g/cm3) was completely combusted. If the percent yield of each of the combustion products is 87.65%, calculate the actual yield in grams of carbon dioxide gas.

89. chemistry

How many moles are there in 250cm3 0f 4M sodium chloride solution

90. Chemistry

A balloon has a volume of 2.75 liters at 25 degrees celsius. What would the balloon's volume be if the temperature is raised to 95 degrees celsius and the pressure remains constant?

91. trig.

A 2000 pound car is parked on a street that make an angle of 12 degrees with the horizontal figure Find the force perpendicular to the street.

(hey i asked for help with accounting with a question i saw the same question at this site but when i click it it doesnt work is there anyway you can check it for me then what they posted there you can copy and post it here for me).my question was Tracy

93. science

a 49 newton rock is lifted in 5 seconds A. how much work is done? B.what power is used? How do you write this question out

94. PHYSICAL SCIENCE

A ROCK WITH A WEIGHT OF 156.8 NEWTONS FALLS 5 METERS. WHAT POTENTIAL ENERGY DOES IT HAVE JUST BEFORE THE END OF ITS FALL.

95. Math

In college algebra a student earns an average grade of 86 on his homework and 75 on his quizzes. What final examination grade will give him a total average of 80 if homework 1/10 , quizzes 3/5 and the final examination 3/10?

96. physics

a person in a hot air balloon ascending vertically at a constant rate of 12m/s drops a rock over the side when the balloon is 40 m above the ground, what is the velocity of the rock just before it hits the ground, and how long will it take the rock to

97. Chemistry

How is 4FeS2 + 11O2 = 2Fe2O3 +8SO2 a single replacement reaction?

98. Thermochemistry

For the combustion of 100. gm of methane, how much heat would be generated?

99. Math

What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y equals= 12 minus x^2?