# Questions Asked onSeptember 18, 2015

1. ## Math

1. Name the intersection of plane ACG and plane BCG. A. AC B. BG C. CG D. The planes need not intersect. Is the answer C? this is hard for me since there isn't a picture. Thank you!

2. ## Math

Question: A square painting measures 2 meters on each side, what is the area of the painting in square centimeters?

3. ## calc urgent

Note that f is continuous on (−∞, 6) and (6, ∞). For the function to be continuous on (−∞, ∞), we need to ensure that as x approaches 6, the left and right limits match. First we find the left limit. lim x→6− f(x) = lim x→6− (cx2 + 3x)

For his science project, Austin wants to determine if the pH of standing rainwater and places it indoors in a spot that does not receive a lot of sunlight to limit evaporation. Using a pH testing kit, he measures the pH of the water once a day for 20 days.

5. ## Math

1. Two angles whose sides are opposite rays are called _____ angles. Two coplanar angles with a common side, a common vertex, and no common interior points are called ____ angles. A. Adjacent; vertical B. adjacent; complementary C. vertical; adjacent D.

6. ## Physics

Two airplanes leave an airport at the same time. The velocity of the first airplane is 730 m/h at a heading of 44.6 degrees. The velocity of the second is 610 m/h at a heading of 100 degrees. How far apart are they after 2.3 h? Answer in units of m.

7. ## maths

Four bells tolls at an interval of 8,12,15 &18 second a respectively. How many times will they toll together in one hour excluding the one at the start?

8. ## ALGEBRA

if a bottle holding 3 liters of milk contains 3.5% butterfat,How much skimmed milk must be added to dilute the milk to 2% butterfat

9. ## earth science

Stellar evolution is the life cycle of a star. A cycle suggests that upon death of a star, another star is born. How is this possible? Stars never really die. The death is a black dwarf star. This type of death triggers the birth of a new star. The death

10. ## Math

Josephine wants to put a wallpaper border around the ceiling of her room. Do mentions are shown below. How many feet of border does she need? 10 10 9/12 feet and 8 1/2 feet

11. ## ALGEBRA

Mae open her coin purse and found pennies,nickels and dimes with a total value of \$2.85.If there are twice as many pennies as there are nickels and dimes combined.How many pennies,dimes and nickels are there if she has a collection of 90 coins given:

12. ## physics

A ball is kicked with an initial velocity of 16.1 m/s in the horizontal direction and 14.4 m/s in the vertical direction. What maximum height is attained by the ball?

13. ## Chemistry

Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced equation for the reaction is 2Mg(s)+O2(g)¨2MgO(s) When 10.2 g Mg is allowed to react with 10.6 g O2, 11.8 g MgO is collected. Determine the theoretical

14. ## History

Which of the following best describes William Penn's vision for living in America? He plotted to change the customs and religion of the Native Americans. He wanted to practice ideals such as religious freedom and toleration.*** He envisioned building large

15. ## 8th Grade Honors History

2. A piece of decorated pottery from the Woodland Era is considered (1 point) a fossil an artifact.** a hieroglyph. a chert 8. During which period of time was the first pottery made? (1 point) Archaic period** Mississippian period Paleo period Woodland

16. ## Physics - URGENT

A water balloon is launched at a speed of 23 m/s and an angle of 36 degrees above the horizontal. The water balloon hits a tall building located 20 m from the launch pad. At what height above the ground level will the water balloon hit the building?

17. ## Physics

A basketball player throws the ball at a 47degree angle above the horizontal to a hoop which is located a horizontal distance L = 8.4 m from the point of release and at a height h = 2.7 m above it. What is the required speed if the basketball is to reach

18. ## Math

Which of these numbers is the smallest? 0.24, 0.02, 0.11, 2, 0 (Is 0 considered to be the smallest number here?)

19. ## Physics

A child in danger of drowning in a river is being carried downstream by a current that has a speed of 2.60km/h. The child is 0.615km from shore and 0.815km upstream of a boat landing when a rescue boat sets out. If the boat proceeds at its maximum speed of

20. ## Physics

A ball on the end of a string is whirled around in a horizontal circle of radius 0.300m. The plane of the circle is 1.19m above the ground. The string breaks and the ball lands 1.91m (horizontally) away from the point on the ground directly beneath the

21. ## Logarithm help

Use logarithms for these questions After every 10 pages of painting, the ribbon in the dot matrix printer loses about 0.5% of its ink. A) What percent of the ink is left in the ribbon after printing 100 pages and 1000 pages B) write an equation which

22. ## physics

A plane accelerates from rest at a constant rate of 5.00 m/s2 along a runway that is 1800 m long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time tTO needed to take off?

23. ## math

a class of 80 is 25% girls. if 10% of the boys and 20% of the girls attended a picnic , what percent of the class attended ?

24. ## Chemistry

i have to round each to 3 significant figures, then to one significant figure, in standard form, how? a) 87.073 m b) 4.3621 x 10^8 m c) 0.01552 m d) 9009 m e) 1.7777 x 10^-3 m f)629.55 m

25. ## Math

The five sales people at Southwest Appliances earned commissions last year of \$13,000, \$22,000, \$47,000, \$15,000, and \$24,000. Find the mean commission.

26. ## calcc

Note that f is continuous on (−∞, 6) and (6, ∞). For the function to be continuous on (−∞, ∞), we need to ensure that as x approaches 6, the left and right limits match. First we find the left limit. lim x→6− f(x) = lim x→6− (cx2 + 3x)

27. ## Algebra

Choose the best definition for the following term: substitution A letter that holds the place for some unknown value in mathematics A process where you must look for terms that have identical variable parts and then combine their coefficients A process

28. ## physics

A child on a sled (total mass 41 kg) slides down a hill inclined at an angle θ = 22° at a constant speed 3.5 m/s. (a) How long does it take the child to travel 40 meters down the slope? (b) What is the frictional force on the sled? (c) What is the

29. ## Math

1.MO bisects LMN, m LMN=6x-28, m LMO=x+34. Find m NMO. A) 46.4 B) 92.8 C) 63 D) 58 Is the answer A?

30. ## Math

Miguel's grandparents live 159 miles from his house. If it takes 3 hours to drive to his grandparents house what is the average speed?

31. ## vocabullary

Alienate and Estrange A. Synonyms B. Antonyms C. Neither

32. ## Algebra

1. Find the quotient -7 divided by 14/13 A.-2/3 B.-98/3 C.-1/2 D.-3/2

33. ## Physics

A car start from rest, moves with uniform acceleration and attains a velocity of 72km/h in 1.5 s it moves with uniform speed for 20 s and is then brought to rest in 10 s under uniform retardation, then total distance travelled using velocity -time graph

34. ## Chemistry

If 2.0 mol of propane are burned (reacted with oxygen), how many moles of carbon dioxide will be produced? C3H8 (g) + 5 O2(g) → 3 CO2 (g) + 4 H2O (g) I just want to make sure the answer is 6 mol of CO2 will be produced.

35. ## english

Most of the time, the ____ struggles against the main character in a story. A) protagonist B) antagonist C) flat character D) round character

36. ## Physics

A river flows with a uniform velocity v. A person in a motorboat travels 1.21km upstream, at which time she passes a log floating by. Always with the same throttle setting, the boater continues to travel upstream for another 52.6min and then returns

37. ## math

ms.sue dumb dumb but hole? yes you r.

38. ## Math

1. _____ Two points are collinear. A. Any B. No C. Sometimes Is the answer A?

39. ## PHYSICS

The position of a particle moving on a smooth horizontal floor is given as a function of time according to the equation x=ut+1/2at^2. At time t=0, the particle has the velocity u. Obtain an expression for the velocity as the function of time. Hence, find

40. ## math

simplify the expression (-3)4 81 -81 -12 12 I think it is -12

41. ## physics

A particle accelerates from rest at a uniform rate of 3 m/s^2 for a distance of 200m. -how fast s the particle going at that time? -how long did it take for the particle to reach that velocity?

42. ## Algebra

Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 25 hours, and on the trip back averaged 55 mi/h. She returned home 40 hours after leaving. How many miles is City A from City B

43. ## math

Rosa invested \$8000 for one year, part ast 8% annual interest and the balance at 10% annual interest. Her total interest for the year was \$700. How much money did she invest at each rate?

44. ## ALGEBRA

In three more years,Miguel's grandfather will be six times as old as Miguel was last year.When Miguel's present age is added to his grandfather's present age, the total is 68.How old is each one now?

45. ## Math

Josephine wants to put a wallpaper border around the ceiling of her room. The dimensions are 10 9/12ft and 8 1/2ft How many feet of border does she need?

46. ## Chemistry

Prepare 45.00ml of 0.125M gold III chloride solution, given 500.00ml of a 0.500M gold III chloride solution. Explain how you will prepare the solution

47. ## Math

Find the effective rate of interest for 5% compounded monthly.

48. ## college algebra

The total yearly food bill for a family of four is \$9395.59. To the nearest cent, what is the mean weekly food bill?

49. ## Logarithm help

Use logarithms for these questions After every 10 pages of painting, the ribbon in the dot matrix printer loses about 0.5% of its ink. A) What percent of the ink is left in the ribbon after printing 100 pages and 1000 pages I have no idea how to solve this

50. ## World History

World History Unit 3 Portfolio What’s the Difference: Civilization Comparison and Contrast Does anybody know what this is i really need help PLEASE!?

51. ## Logarithm help

Solve to the nearest thousandth. 5^1+x = 2^1-x

52. ## Computer program

Need to know if I have it right or not in the program please . Input a list of positive numbers (terminated by 0) into an array, find the mean (average) of the numbers in the array, and output the result. Use a subprogram to input the numbers, a function

53. ## ALGEBRA

The man gave 1/2 of his money to his brother,1/6to his friend and the remainder an amount of P150,000 which he kept.How much money does the man originally have?

54. ## math

could someone check my work please? I have to solve for 'x' Questions ~ 1. 3x – 19 = -2 Add ‘19’ to each side of the equation ~ -19+19+3x= -2+19 Combine like terms~ -19+19=0 0+3x= -2+19 3x= -2+19 Combine like terms~ -2+19=17 3x=17 Divide each side

55. ## Physics

An airplane flies at an airspeed of 445km/hr. The pilot wants to fly 785km to the north. She knows that she must head 18.0° east of north to fly directly there. If the plane arrives in 1.97hr, find the magnitude of the wind velocity vector.

56. ## organic chem

moles are in 1.30 mL of acetic anhydride given that the density of acetic anhydride is 1.08 g/mL and the molecular weight is 102 g/mol?

57. ## Math

Tate has bag of golf balls: 3 red, 5 blue, 2 yellow, and 2 green. What is the probability that he pulls out a red one, replaces it, and then pulls out another red one?

58. ## math

This year Gloria's garden is one foot wider and three feet shorter? What were the dimensions of the garden last year?

59. ## Logarithm help

using logarithms to solve exponential equations. 5^1+x = 2^1-x I need exact numbers. I did one on my own already. 5^x-1 = 9 5^x-1 = 9 log(5^x-1) = log9 (log5)(x-1) = log9 x-1 = (log9/log5) x= (log9/log5)-1 x = 2.3652

60. ## chemistry

would NBr3O be polar or nonpolar?

61. ## Maths

What is the HCF / GCF of 120, 180 and 190 in prime factorisation method

62. ## ALGEBRA

Sue is 8 years older than her pet goldfish Maya .In two years Sue's age will be three times Maya's age .What are their present age?

63. ## English

What rhyme scheme is used in the excerpt from Ballard of Birmingham by Dudley Randall

64. ## Social studies

True or false To accurately label exact locations on a map, geographers go to that specific location. If false what is correct answer

65. ## maths

At the party Jade ate less than four jelly beans. Nicole ate twice as many jelly beans as Jade. Kahlee had twice as many as Nicole. Chris had two more than kahlee. Chris ate ten jelly beans. How many jelly beans were eaten at the party?

66. ## algebra

The denominator of a fraction is 4 less than the numerator .If the denominator is doubled and the numerator is increased by 6,the sum of the original fraction and the new one is 3 .Find the original fraction.

67. ## ALGEBRA

If a jeweller wishes to form 12 ounces oif 75%pure gold from substances that arev 60% AND 80% pure gold .How much of each substances must be mixed together to produce this?

68. ## Math

Find the mean, median, and mode. Round to the nearest tenth when necessary. 1) Given these board lengths: 20.2, 1.2, 5, 5.8, 16, 20.2, 5, 1.2, 20.2, 20.2

69. ## Siminza high school

Discuss three practical measures to deal with this environmenta issue that causes I'll-health on a personal level

70. ## English

I was just reading the "Modest Proposal" by Jonathan Swift when I read something that seem ironic. The narrator said that women were "breeders" or "dams" but then the last sentence of the last paragraph states that he has a wife past childbearing age and

71. ## Math

Simplify the expression. 1/2(6x-8)-(5x-3) a)3x-4 b)-3x-8 c)-2x-5 d)-2x-1 Thanks!

72. ## physics

In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 105 mph, how much time elapses between the hit and the ball reaching the pitcher? I figured out how many ft there would be in a second, but

73. ## physics

The thermal energy stored in 1 kg of gasoline is about 10,000 kcal (42,000,000 J). A small car needs a forward force of about 500 N to move slowly at a constant speed on a leveled road (no change in ME). How far should the car go if all the energy stored

74. ## physics

If the print area of each tire of a car is 24 inch2 and the tire pressure is 30psi, what the weight of the car in pounds?

75. ## Math

How long does it take for an investment to triple in value if it is invested at 9% compounded semiannually?

76. ## math

3/14 of rosebuds in a garden bloomed yesterdday and 2/5 of the remaining rosebuds bloomed today.66 rosebuds have not yet bloomed.how many rosebuds were there in total? how many rosebuds bloomed today?

77. ## Chemistry

It says to convert 19.3 Inches to Centimeters. How do I figure this out? I know 1 Inch = 2.54 Centimeters.. The answer is 49.02 because I did online conversions but how do I arrive to my answer? What do you do?

78. ## Algebra

the base of a cylinder is a right triangle topped by a 60 degrees sector of a circle, as shown. if the dimensions are in meters and the height of the cylinder is 8 meters, what is the volume of the cylinder?

79. ## Probability

hundred people apply for three jobs. 110 of the applicants are women. (a) If three persons are selected at random, what is the probability that two are women? (Round the answer to six decimal places.) 3C2(110/400)^2(290/400)=0.164484 wrong answer

80. ## statics

a study was conducted in which the teachers were asked to rate students for particular trait on a ten point scale.with the help of data given below find out whether significant difference exists in the rating of the students by the teachers. teachers

81. ## Science

Find the gravitational acceleration if a spaceship at a distance equal to double of earth's radius from the centre of the earth (g on earth is 9.8 m/s)

82. ## Physics

A student walks from her apartment a distance d=139m to the bus stop at a speed of v1= 1.40m/s. The she realizes that she has forgotten her crib sheet for her exam and so runs back to her apartment to pick it up and returns to the bus stop at a speed v2=

83. ## Maths

What is the HCF / GCF of 120, 180 and 190

84. ## Verbales (sacar fórmula)

Una firma de inversión tiene \$100.000 para invertir de un cliente y decide invertir en dos fondos, A y B. La tasa de rendimiento esperada, o interés simple, por el fondo A es de 15%, pero hay riesgo, y el cliente no quiere invertir más de \$50,000 en

85. ## Trigonometric functions

Prove that 2pi is the minimum period of f(x) = cos (x)

86. ## Algebra

I would appreciate an explanation of how to simplify this question. Write the fraction as a difference. 3x-7 --- 12

87. ## math

Can someone help me with these questions?? I really can't figure it out. Please help me I really need it... I have to write an equation to represent these real-life situations in which the variable is on the left side of the equation with an operation and

88. ## Science

how can models help in science, why they are important, what and some examples of models.

89. ## Accounting Principles I

I have been trying to figure this out forever and just can't. Here is the problem: Reported sales of \$300,000 write-offs of uncollectible accounts of \$10,000 against the allowance for doubtful accounts and a decrease in net accounts receivable of \$40,000

which of the following factors most contributed to the flourishing of great civilization in Africa between 400-1600 a) the spread of Christianity to sub- Saharan nations b)extensive trade with north Africa, Arabic, and Portuguese trading partners c) the

91. ## Algebra 2

Determine whether each of the integers from-5 to 5 are is a solution of the inequality I x-5 I+3>5.

92. ## Maths

What is the HCF / GCF of 120, 180 and 190 as per prime factorisation. Please explain in depth....

93. ## physics

a car moves at a constant speed of 60 km/hr for 1 km and 40 km/hr for 1 km.what is average speed of car?

94. ## algebra

A compact car is driven 144mi. If it had traveled 4mph faster, it could have made the trip in 1/2 hour less time. What was the speed of the car?

95. ## Math

The circumference of a certain circle is doubled. By what factor is its area increased?

96. ## Algebra

Simplify the expression (7+5)+4*13-2 I would like an explanation on how to do this question if you can:)

97. ## Rectangle

The length and width of a rectangle are integer.if the area is larger than its perimeter by 9 find the perimeter???

98. ## Math

Use a calculator to find sin 217 degrees. -0.6018?

99. ## Chemistry

if a cooler has 63 kg of ice how much energy is required to melt it at 0 degrees celcius? The heat fusion for water is 80 cal/gram

100. ## Chemistry

Katie measures the mass of a chunk of gold to be 9.67 g. The accepted mass of the gold chunk is 9.82 g. How would I calculate the percent error and report my answer to two significant figures?

101. ## industrial process

if 100 grams of water is at 100 degree celcius are poured into 100 grams turpentine at 9 degree celcius and the resulting temperature found to be 70 degree celcius. what is the specific heat of the turpentine?

Express y as a function of x. What is the domain? Explain your answer. log4y = x + log4 Solving exponential equations with logarithms Solve to the nearest thousandth. 5^1+x = 2^1-x

103. ## math

solve 2x3 -+4r2 if r=1 and s=5 is it 25x25x25=15625 42x42= 1764 15625-1764=13861 I think I got it

104. ## Physics

A boy threw a rock straight down from a tree top with a velocity of 5.00 m/s. If the rock struck the ground below 1.80 s later, what was its velocity at this time?

105. ## Math

Use a calculator to find cot 175 degs. -11.43?

106. ## Math

-12/3x(-8+(-4)^2-6)+2 How do I get the answer of:-6?

107. ## Government

Which level of government is better able to provide specific goods or benefits? a, City b, County c, State d, United States e, A, B and C is the answer to this question (c) State, or (E).

108. ## French

Can someone check these sentences for grammar and context? 1. Tu n'as rien (as in you don't have anything). 2. Nous ne voulons acheter rien dans ton magasin (as in we don't want to buy anything in your store). 3. Tu ne peux pas aider moi (as in you can't

109. ## Chem

Precision, Accuracy, and Percent Error: _______________________________________ Suppose a student measures the volume of an aluminum block three times and records the following data: 8.42 cm^3, 8.41 cm^3, and 8.40 cm^3. The accepted volume of the aluminum

110. ## Logarithms

Express y as a function of x. What is the domain? Explain your answer. log4y = x + log4

111. ## Criminal Justice

White-collar crime became a focus in the American criminal justice system in which century?

112. ## Maths

What is the HCF / GCF of 120, 180 and 190 in prime factorisation method

113. ## Science

How can you evaluate scientific claims? NEED HELP!

114. ## English

I put a cockroach killer under the table. Watch out for the baby not to touch it, Some cockroach medicine is in the cabinet beneath bottles. The cockroach killers are in a small plastic containers. =========================== Are the sentences grammatical?

115. ## mathematics

an Ap has fourth term 8 and 17,find the first term

116. ## Physics

A student walks from her apartment a distance d=139m to the bus stop at a speed of v1= 1.40m/s.

117. ## r n

if two forces acting on a body at angle ¤ to each other and exerts a force of 20N,their resultant is 30N.what is the angle between them?

118. ## Math

2 water pipe inlets pumping water into a tank. Pipe "A" fills up the tank in 30 minutes. Pipe "B" fills up the tank in 90 minutes. Assuming both pipes are on. How long it will take to fill up the tank.

119. ## trigonometry

π/10 = (0.95, 0.31) 3π/10 = (3/5, 4/5) 20° = (28/30, 10/30) are these correct? tan 70° = 28/10 csc 21π/10 = 1/0.31 sec 17π/10 = 5/3

120. ## chemistry

atmospheric temperature changes the state of these things, but i do not know to what? diamond, mercury, oxygen, clay, neon, and cooking oil?

121. ## Biochemistry

1. Describe the ran world hypothesis 2. A) list the types of non covalent interactions that are important in providing stability to the three dimensional structures of macromolecules. (B) why is it important that these interactions be noncovalent , rather

122. ## algebra

Variables that must be excluded from 2y^2+7y-30/y+6

123. ## Chemistry

what is the following's states at atmospheric temperature? 1. diamond 2. mercury 3. oxygen 4. clay 5 cooking oil 6. neon

124. ## Maths

What is the HCF / GCF of 120, 180 and 190 in prime factorisation method

125. ## industrial process

the exhaust gases from an oil engine are passed through a water heater. the gasses have a specific heat of 1.0467KJ/kg-K and the temperature falls from 420 degree Celsius to 150 degree Celsius is flowing through the heater. the flow being 25 Kg/min. if the

126. ## find the area of the rectangle

84cm And 19cm?

127. ## Chem

Joe bought a 2.08 * 10^4 pound tractor trailer to transport his world famous birthday cakes around the country. How many tons was the tractor trailer?

128. ## math

Which of these numbers is irrational? check mark sign 3 0.25 1/5 check mark sign 9 I think it is the first one

129. ## English

What is the theme of Ballard of Birmingham byDudley Randall

130. ## Psychology

How would a correlation -.68 look on a scatter diagram?

131. ## spelling

Create a sentence for the following words for a 6th grader: 1. partisanship 2. preconceived 3. subjective 4. blithe

132. ## University of the Philippines

What is a mole of 31.8%k 29.0%Cl 39.2%O ?

133. ## Trigonometry damon plz help

If the angle of a h meters long tower is in a straight line between two observers A and B angle of elevation of the top of the tower from A and B are alpha and beta respectively and AB=D meters find h/d

134. ## circle trigonometry

sin θ=2/3 and θ correspond to a point in quadrant 2. cos θ=

135. ## zphs

In a right angle two side are 9m and12m what would be third side?

136. ## shaw

Which is a property that can be used to identify matter?

138. ## Division:jus confuse

Find the remainder? when 2^2011 is divisible by 13