# Questions Asked onDecember 21, 2016

1. ## Math

A wall in Marcus's bedroom is 8 1/3 feet high and 16 1/5 feet long. If he paints 1/3 of the wall blue, how many square feet will be blue?

2. ## calculus

Find two numbers whose product is 16 and whose sum of squares is minimum

3. ## Math

If one of the angles of a triangle is 110 degree then the angle between the bisector of the other two angles is what ?

4. ## maths

ifm sin B=nsin(2A+B) prove that(m+n)tanA=(m-n)tan(A+B)

5. ## a.p.

2+3+5+6+8+9+....+(3n-1)+(3n)

6. ## Math

A rectangular sheet measuring 80cm and 50cm is 2mm thick and is made of metal whose density is 2.5g/cm cubed.A square of side 5cm is removed from each corner of the rectangle & the remaining part folded to form an open cuboid. Calculate a)The area of metal

7. ## algebra

Ashley is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices. Company A charges \$95 and allows unlimited mileage. Company B has an initial fee of \$75 and charges an additional \$0.80 for every

8. ## data management gr.12

A game is defined by the rules that the die is rolled and the player wins varying amounts depending on the number on the upper face according to the following table: sum 1 2 3 4 5 6 Winnings \$10 \$9 \$8 \$7 \$6 \$5 The cost to play the game is \$7.00 a) what can

9. ## Math

Victoria has a 2-pound package of flour. She uses 2/5 of the flour to make bread. Find the weight of the package of flour that she has left. Express your answer as a decimal.

10. ## Social Impact of Technology

Ecologists who study the way many species interact with each other in a specified area are focused on: A. habitats. B. communities. C. niches. D. biomes Ans : B

11. ## Anonyms

By what percent will a fraction change if its numerator is decreased by 50% and its denominator is decreased by 25%?

12. ## calculus

Jen needs to make a flyer for her dog's birthday party. She wants the flyer to contain 40 square inches of printed portion and she wants to use 1 inch of each side as well as 2 inches of top and bottom of the paper for decoration. What size paper should

13. ## Physics -HELP

1. A rectangular coil 0.065 m by 0.080 m is positioned so that its cross-sectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 Ω and the field decreases at a rate of 2.5 T/s. What is the

14. ## Social Impact of Technology

Which of these planets is in the so-called “Goldilocks Zone”? A. Earth B. Mars C. Jupiter D. Venus Ans: Earth

16. ## a.p.

a perso buys national savings certificate values exceeding of the last years purchase by ₨.100.after 12 year he finds that the total value of certificate purchased by him ₨.7,200. find the value of the certificate purchase by him (1) in the first year

17. ## physics

A copper wire has a resistance of 1.02 Ω at 20.0°C. What is its resistance at 60°C? The temperature coefficient of resistivity for copper is 0.0039 (C°)—1.

18. ## History

Why did the Portuguese think they could find an easier way to reach Asia? A. They had alliances with European nations to send out expeditions. B. They had a large county and a long tradition of asian exploration. C. They had a large fleet and had defeated

19. ## a.p.

find the sum of the series 1-2+3-4+5-6+...to n terms.

20. ## Social Impact of Technology

Marge maintains that there is no direct correlation between population density and poverty. Mason argues that population density is normally associated with poverty and political instability. Who is correct? A. Marge and Mason are both incorrect. B. Marge

21. ## maths

In 60 ounces of alloy for watch cases there are 20 ounces of gold.how much copper must be added to the alloy so that a watch case weighing 4 ounces,made from the new alloy,will contain 1 ounce of gold.......answer is 20 ounces

22. ## Help -Social Impact of Technology

Marge maintains that there is no direct correlation between population density and poverty. Mason argues that population density is normally associated with poverty and political instability. Who is correct? A. Marge and Mason are both incorrect. B. Marge

23. ## Math

When 100is added to a number the result is 50 more then 3 times the number.find the number

24. ## Chemistry

In a reaction Mg(s) + 2HCl(aq) →H2(g) + MgCl2(aq), 6.00 g of Mg was present at 0.00 min. After 3.00 min, 4.50 g of Mg remained. Express the average rate as mol of Mg consumed per minute.

25. ## Math

A pair of pants costs twice as much as a shirt. The total cost of 1 1 pair of pants and 1 1 shirt is \$18 \$18 . If s represents the cost of 1 1 shirt, which equation could you use to find the cost of 1 1 shirt?

26. ## physics

A certain vehicle can accelerate from rest to a speed of 25m/s in a time of 8s.What average power is needed to cause this acceleration?Neglect frictional losses

27. ## history

Which of the following is a major example of Abraham Lincoln's policy of leniency toward the defeated South? A. Pres Lincoln's willingness to have federal government assume responsibility of the Confederate government's war debts. B. Pres Lincoln's choice

28. ## Math

You buy clothing at a sale. You buy a sweater (a really nice one!) at seven tenths (7/10) of its original price if \$35. Answer the fallowing questions. A: How much money did you spend? B: How much money did you save? C: What fraction of the total original

29. ## Chemistry

If I heated NaNO3, would there be yellow gas inside the test tube?

30. ## ALgebra

Maria started a bank account in March. The amount of money that she had in April was \$4600. The amount of money she had is May was \$5125. The amount of money she had in June was 5175. Write an equation where x represents the number of months while y

31. ## calculus

find the location and values of any global extrema of F(x)= x^3-3x^2-9x on the interval [-2,4] (you must show your work by finding critical points

32. ## calculus

A Veterinarian has 80 feet of fence and he wants to enclose a rectangular dog-run along the back side of his office building. He will not fence the side along the building. What are the dimensions of the dog-run that give the maximum area he desires?

33. ## Math

What does it take to win a tug of war

34. ## calculus

A 13 foot ladder is leaning against a house when its base starts to slide away. By the time the base is 12 ft. from the house, the base is moving at the rate of 10ft./s. How fast is the top of the ladder sliding down the wall then?

35. ## calculus

when a circular plate of metal is heated in an oven, its radius increases at the rate of 0.01 cm/min. At what rate is the plate's area increasing when the radius is 60 cm?

36. ## math

Find a polynomial, which, when added to the polynomial 5x2–3x–9, is equivalent to: 0

37. ## Physics -HELP

A coil with 337 turns of wire, a total resistance of 47 Ω, and a cross-sectional area of 0.35 m2 is positioned with its plane perpendicular to the field of a powerful electromagnet. What average current is induced in the coil during the 0.30 s that the

38. ## SS

How did the supreme court decision in Worcester v Georgia and the Indian Removal Act lead to the removal and resettlement of native American groups?

39. ## Math

There are 132 people seated in the school auditorium for an assembly. There are 6 rows in the auditorium, each with the same number of seats. If the auditorium is completely filled, how many seats are there in each row?

How did the supreme court decision in Worcester v Georgia and the Indian Removal Act lead to the removal and resettlement of native American groups? please help me with this all i want is help getting started or a sample essay

41. ## math

The number of immigrants living in a certain country with a large population makes up 35% of the population. In a random sample poll of 40 people what is: a)the expected number of non-immigrants will be polled? b)the probability that no immigrants will be

42. ## a.p.

find the least value of n such that 2+5+8+11+....to n terms > 200.

43. ## Math

You purchase 3.5 kg of bananas for \$2.42. What is the cost of 1 kg of bananas? Answer: \$1.45????

44. ## Math

1. 2(x-3)=2x A. One solution B. No solutions C. Infinitely many solutions 2. 3(y-3)=2y-9+y A. One solution B. No solutions C. Infinitely many solutions 3. 10x-2-6x=3x-2+x A. One solution B. No solutions C. Infinitely many solutions 4. 4(x+3)+2x=x-8 A. One

45. ## help with math plz

x= -2, -1,0,1,2 y= 9, 4, -1, -6, -11 I know how I did it but I need like a more explaining thank you

46. ## chemistry

Determine the [OH^-] of a solution that is 0.145 M in CO3^2-.

47. ## math

A bakery sells 5800 muffins in 2010. The bakery sells 7420 muffins in 2015. Write a linear model that represents the number y y of muffins that the bakery sells x x years after 2010

48. ## Physics -HELP

A rectangular coil 0.065 m by 0.080 m is positioned so that its cross-sectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 Ω and the field decreases at a rate of 2.5 T/s. What is the

49. ## math

damon borrowed \$1000 for 1 year and 7 months at an interest rate 6.3% compounded monthly. how much did he repay

50. ## Algebra 1

Alisha is paying \$20 for a large pizza,which is 18 inches in diameter, a better buy than paying \$5 for a personal size pizza that is 6 inches across?Explain

51. ## maths

If the graph of f (x)=ax2+bx+c then how do we know the value of b from the graph. We will come to know the value of a & c by the shape of the graph like open upward or downward but what about 'b' explain

52. ## physics

Heather and Jerry are standing on a bridge 51 m above a river. Heather throws a rock straight down with a speed of 17 m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time

53. ## elementary school

what do I do when there is an equation like 15/4 divided by 9/1 how do I do that since 9 cant go into 15 evenly

54. ## Physics

A 50 N box is pushed 5 m up a 30 degree inclined plane. What work is done on the box?

55. ## Math

A line has a slope -4/3 and passes through the point (12,6). Determine three additional points of this line. I'm very confused of this

56. ## Physics

1. A rectangular coil 0.065 m by 0.080 m is positioned so that its cross-sectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 Ω and the field decreases at a rate of 2.5 T/s. What is the

57. ## physics

State the factors that affect the speed and the rotation of the motor

58. ## Social Impact of Technology

On the pH scale ranging from 1 to 14, 7 is neutral. Any number greater than 7 is alkaline; any number lower than 7 is acidic. With that in mind, in turns out that the oceans are serving as a carbon sink. About __________ percent of current carbon dioxide

59. ## Math - Trig / Pre - Calc

Standard form of hyperbola: Hyperbola: Vertices: (9,9), (9, -7) Foci: (9, 1 + 4 sqrt 13), (9, 1 - 4 sqrt 13)? Standard form Ellipse: vertices: (2 sqrt 10, -10), (-2 sqrt 10, -10) foci: (sqrt 30, -10), (-sqrt 30, -10)?

60. ## Social Impact of Technology

VEhrlich’s dire projections differed from those of Malthus in that he applied the principle of geometric progression to: A. vital resources such as oil, copper, and top soils. B. significant climate change variables. C. increasing species die-off. D. the

61. ## Writing

how do I work cite a video from youtube please help me And also how do I write a paper aobut racism and what sources can I useñ

62. ## Math

(-5x)*(-6) simplify

63. ## Social Impact of Technology

According to your reading, factors bearing on population dynamics that may be at the root of social problems include all of the following EXCEPT: A. economic. B. spiritual. C. cultural. D. political

64. ## Structural Steelwork

A workshop table has an equilateral triangular top, each side of which is 900mm, the legs being at the three corners. A load of 500N is placed on the table at a point distant 325mm from one leg and 625mm from another. What is the load on each of the three

65. ## chemistry

How many grams of aluminum is produced from the decomposition of 34grams of aluminum oxide

66. ## math

5times 10 + 18-1 divied by 100

67. ## MATH

A line has a slope -4/3 and passes through the point (12,6). Determine three additional points of this line. I don't know how to do find this

68. ## math

In the spring, a group of biologists caught and tagged 500 wolves in a wilderness area. These animals were then released. A couple of months later, 200 wolves were caught and 75 of them had tags. Estimate the wolf population in this wilderness area. Please

69. ## Writing

If I put this way how can I start doing it..for example: how does racism relate to culure structure and power of society

70. ## math

draw a line segment A B =6 cm and on it mark point C D E such that A C = C D D E = E B. draw a prependiculars to A B at C D E on the same side of A B.

71. ## Chemistry

I have asked this question before but I was not clear enough. I want to prepare a 37% w/w solution (in water)of sulfuric acid from 96% sulfuric acid. I need around 500ml, I know it won't be exactly that, I want to know how to use the conversion using

72. ## social studies

The Emergency Highway Energy Conservation Act was passed in 1974. Under this act, states would only get federal highway funding if they set a speed limit of 55 mph on all four-lane highways. Why would the federal government deny funding the states instead

73. ## math

Justin has an I-tunes gift card worth \$125. after he downloads his first app, the cards value is \$118.01. after he downloads his second app, the cards value is \$111.02. after he downloads his third app, the i-tunes gift card is worth \$104.03. Justin wants

74. ## Writing

oh noo i dont want to write book so maybe this: how is racism interconnected with culture and what role does social structure play in racism and is it socially constructed if so why and how and to what capacity is power involved in racism maybe this if so

75. ## maths

to make a mixture of 80 pounds of coffee worth \$272 a grocer mixes coffee wortg \$3.25 a pound with cofee worth \$3.85 a pound.How many pounds of the cheaper coffee should grocer use........60lb

76. ## functions

the equation yy=x+1 is a function or not and why..

77. ## Math

Find the difference between the simple interest and compound interest on 16000 for 3/2 years at 5 %per annum, compound interest being reckoned half yearly.

78. ## data management gr.12

The number of immigrants living in a certain country with a large population makes up 35% of the population. In a random sample poll of 40 people what is: a)the expected number of non-immigrants will be polled? b)the probability that no immigrants will be

79. ## functions

The equation y2=3-2x is a function or not. why

80. ## math

Insert some parentheses in the expression 24 : 4 + 8 : 2 +2 so that the result is: a) 3 b) 4 c) 5 d) 6

81. ## functions

the equation x=modulus of y.is a function or not.why.

82. ## math

a ģùn is fired at a distance of 24•3 away from a man • he hears the sòùñd after 27 second find the speed of soùnd at which it travels

83. ## Science

Phosphorous (P) is an indispensable nutrient in food production. According to the estimates, mineral phosphorous resources will end up within 50 years and consequently new sources of P has to be found. A human excretes 2,2 g of phosphorous (P) per day on

84. ## Science

10. ALTERNATIVE B The elementary analysis of 22 g hydrocarbon sample results in 18 g C and 4 g H. a) Choose the correct chemical formula of the hydrocarbon: i) CH4 ii) C2H4 iii) C3H8 b) What is the amount of CO2 in grams formed by the total combustion of

85. ## Science

Traffic in the cities releases NOx gases into the atmosphere (in the form of NO and NO2). NOx gases contribute to rainwater acidification by dissolving and transforming into a strong acid (HNO3, nitric acid) according to the reaction below: 4 NO + 3 O2 + 2

86. ## Science

Energy management has become a crucial field in increasing the efficiency of our everyday use of energy. One of the most energy consuming activities is the boiling of water. In order to understand the energy consumption, you need to have understanding on

87. ## Science

b) Two families Mäkinen* and Nieminen* travel by cars a distance of 185 km. In the middle of the travel both have a break of 20 min. During driving family Nieminen has an average speed of 90 km/h. Family Mäkinen drives the first part at an average speed

88. ## Science

Our electricity bills consist of many different forms of energy use. In order to be able to make estimates on how much different appliances use electricity and how much savings could be done by investing less electricity consuming ones, you need to have

89. ## math connections

1. x/4+1=-5 A)-2 B)16 C)4 D)-24 ****?? 2. 6x+29=5 A)-4****** B)-18 C)204 D)-144 3. combine like terms -21a+16a -5a**** 5a 37a -37a 9a-b-2a-10b simplify -7a + 11b 11a + 9b -11a-9b 7a-11b ????? solve -4n + 7 + 2n=1 1 3 -3 4 solve 4(y-4)=8

90. ## math

When 100 is added to a number , the result is 50 more than 3times the number . Find the number. (A) 50 (b) 25 (c) 75 (d) 100

91. ## spelling

nail : hammer : screw

92. ## math

It is known that approximately 20% of the population is colour blind. In a sample of 270 people, use the normal approximation to find probability that: a)at least 90 people are colour blind b)exactly 50 people are colour blind I already posted this

93. ## Mathematics

When hundred is added to a number, the result is 50 more than 3times the number . Find the number

94. ## data management gr.12

It is known that approximately 20% of the population is colour blind. In a sample of 270 people, use the normal approximation to find the probability that: a)at least 100 people are color blind b)exact 100 people are color blind Thanks.

95. ## math

in math class ,the ratio of boys to girls are 4:8 ,if they are 24 girls in the class,how many boys are there

96. ## Writing

how can I cite this website MLA commorg/institutional-racism/ I cant even find the name of the publisher

97. ## Maths

When 100 is added to a number,the result is 50 more than 3 times the number find the number

98. ## math

which point lies on the line defined by 3x + 8y = 5

Find the midpoint of the segment below and enter its coordinates as an ordered pair. If necessary, express coordinates as fractions, using the slash mark ( / ) for the fraction bar.

100. ## algebra

Please show me the correct way to simplify this expression: (4t)^-2 t^0/ t^6 v^- Thank you so much.

101. ## Math

x^2sinx/1+tan

102. ## math connections

1. x/4+1=-5 A)-2 B)16 C)4 D)-24 ****?? 2. 6x+29=5 A)-4****** B)-18 C)204 D)-144 3. combine like terms -21a+16a -5a**** 5a 37a -37a 9a-b-2a-10b simplify -7a + 11b 11a + 9b -11a-9b 7a-11b ????? solve -4n + 7 + 2n=1 1 3 -3 4 solve 4(y-4)=8

103. ## Science

A driver of a moving car at 20m/s finds a child on the road 50m ahead and stops the car 10m earlier to the child. If the mass of the car with driver is 1000kg, calculate the force exerted by the brakes of the car??

104. ## math

24. Four friends attempted to write the explicit expression for the nth term of the sequence 2, 5, 10, 17, …. 24. Four friends attempted to write the explicit expression for the nth term of the sequence 2, 5, 10, 17, …. If n represents the set of

105. ## algebra

I previously made a mistake by leaving out an exponent from this expression;Steve wisely pointed out the error.Thank you. Will you please simplify the corrected problem. (4t)^-2 t^0/t^6 v^-8 Thank you so much.I'll be more careful in the future.

106. ## Help

What resource is MOST associated with the area known as the Canadian Shield?

107. ## chemistry

Hi I was wondering if this equation is reversible and be written lime this: NaNO3 + H2O ⇋ NaOH + HNO3 Thanks!