1. Pre Algebra

Which polynomial does the model represent? –x³ + 2x² – 3x + 2 x² + x – 2 –x² – x + 2***** –x² + x – 2 Can someone please help me @Ms.Sue @Reed @WriteTeacher

2. ENGLISH

SPPECH ABOUT TRADITIONAL HEALERS SHOULD BE ALLOWED TO PRACTISE AND PRESCRIBE MEDICINE IN HOSPITALS AND CLINICS

3. Math

(1) which of the following correctly identifies the methods of heat transfer? 1. A- convention B- radiaton C- conduction ~~~~~~~~~~~~~ 2. A- conduction B- radiaton C- convention ~~~~~~~~~~~~~ 3. A- convention B- conduction C- radiaton ~~~~~~~~~~~~~ 4. A-

4. Educational Technology

1. Why is it illegal to download music from many P2P networks? A.P2P networks are illegal B.The artist usually has not given perimiission for this download•• C.You may spread computer viruses D.Spyware will be put on your computer 2.What can happen if

5. life orientation

identify your human rights violation or discrimination and explain in and introductory paragraph why you choose the specific human rights violation or discrimination.describe the three human rights violation or discrimination you selected and give at least

6. Math

abe creates a scatter plot showing students ages on the x-axis and their heights on the y-axis. which type of tend will the scatter plot show? A line trend•• A positive trend A negative tend No trend Correct me

7. Math

which statement are always true about a scatter plot with a positive trend? Choose two The point will form a straight line•• As the x value increases the y value increases The point will show a general upward trend left to right on the graph••

8. Math PLZZZ HELP!!!

always true about a scatter plot with a positive trend? Choose two The point will form a straight line•• As the x value increases the y value increases The point will show a general upward trend left to right on the graph•• There will not be any

9. Math

If a seed is planted, it has a 65% chance of growing into a healthy plant. If 11 seeds are planted, what is the probability that exactly 1 doesn't grow?

10. technolgiy

Lines are used in design to? Choose all that apply. 1:create movement 2:lead the eye across the page 3: describe the relationships between certain colors 4:divide a page into sections. Please help me this is my first time using this website to ask a

11. life orientation

identify your human rights violation or discrimination and explain in and indroductory paragraph why you choose the specific human rights violation or discrimination .critically discuss six ways tha the human rights violation influences individuals groups

12. english

I need help.I want to write prepared speech about english is the language of opportunity, why bother to teach indigenous language.

13. English

Traditional healers should be allowed to practice and prescribe medicine in hospitals and clinics

14. Music

Can anyone help me with this question? Franz Schubert quoted the Ländler in his Piano Trio No. 1 in B-flat Major, op. 99, D. 898 by a) writing tumbling, non-metrical rhythms b)changing the meter c) writing alternating 3/4 measures of either notes and

15. Chemistry- Dr.Bob222

Determine [H30+], [OH-], and pH. A solution that is 0.655% HNO3 by mass (assume a density of 1.01 g/ mL for the solution).

16. Physics

62kg person in an elevator is moving up at a constant speed of 4.0m/s for 5.0s a) calculate the work done by the normal force on the person. b) calculate the work done by the force of gravity on the person . c) How would your answer change if the elevator

17. Math

What is the circumference of the circle? Round your answer to the nearest tenth. The radius of the circle is 12.5 cm. A) 39.25 cm B) 392.5 cm C) 78.5 cm** D)785 cm If I'm right, I guess I did it right, if I'm not, please tell me and explain if you can, if

18. Math

If a seed is planted, it has a 60% chance of growing into a healthy plant. If 6 seeds are planted, what is the probability that exactly 4 don't grow?

19. math HELP

you have a savings account that offers an annual simple interest rat of5% you put \$350 into the account select the graph showing the total interest you earn after 1,2,3,and 4 years

20. Launguage Arts

Which of the following passages from the novel Walk Two Moons best supports the story's theme of hope? 6. A: I asked if I could sit there for a little while, because I wanted to memorize the place B: in the midst of the still morning, with only the sound

Bryan has 3 nickels, 3 dimes, and 2 quarters. What fraction of the coins is either a dime or a quarter?

22. american history

What was one effect that mass transit had on American cities? A. Most urban workers no longer had to live in tenements. B. The number of skyscrapers increased dramatically because there was no room left on the ground. C. Conflicts over ethnic and racial

23. Pre-Cal

A baseball player throws baseball at a velocity 139ft per second at an angle of 20 degrees. The ball leaves the players hand at a height of 5 feet. The path of the ball has a parametric equation x=v(o)t cos(o) and y-h+v(o)tsin(o)-16t^2. Write the

24. Math

Directions: write and solve an algebraic equation or inequality for each problem. 1. Mabel has a total of 54 beads. Some are black and some are white. The ratio of the number of black beads to the number of white beads is 7:2. How many more black beads

25. life orientation

Ways that the human rights violation influences individual,groups and broader south African community

26. MATH

2. Given the data 12,39,21,18,24,17,12,25 a what is the outlier in the data? b what is the mean with the outlier? c what is the mean without the outlier A. 12;21;18.4 B. 12; 18.4; 21 C. 39; 21; 18.4 D. 39; 18.4; 21 I know it's C or D but I am unsure which

27. science help PLS

When Jane visits a beach, she notices a sea stack has formed offshore. Which of the following best describes what caused the sea stack to form? Erosion hollowed out the rock in a seaside cliff. Deposition moved sand from the beach into an offshore pile. A

28. accounting

identify your human rights violation or discrimination and axplain in introductory paragraph why you choose the specific human rights violation discrimination.describe the three human rights violation or discrimination you selected, give two example of

29. Chemistry

Like a equilibrium constants, the values of Kw depends on temperature. At body temperature (37 C), Kw= 2.4 x 10^-14. What are the [H3O+] and pH of pure water at body temperature?

30. MATH

If you roll a 6 sided dice 6 times, what is the best prediction possible for the number of times you will roll a two? A) 6 B) 1 C) 2 D) 0

31. History help

15. The compromise of 1850 included which of the following? A. The Homestead Act B. The Fugitive Slave Act C. The Indian Removal Act D. The Missouri Act I think the answer is A,but not for sure.

32. Math

What are the mean, median mode and range of the data we given the altitude of lakes in feet? -9,-36,-23,-8,17,-52,27,-36 Mean: -25 Median: -26 mode: -44 range: 36 Mean: -25 Median: -:-36 mode: -36 Range: 44 Mean: -26 Median: -25 Mode: -36 range: 44 Mean:

33. Physics

The human heart discharges 75ml of blood at each beat against the pressure of 0.1mmHg. Calculate the power of the heart assuming that the purse frequency is 80 beats per minute.(density of mercury is 13.6*10^3 Kg/m3)

34. Math

A 6-inch pizza costs \$3.50. A 12-inch pizza costs \$11. How much less is the area of the 6-inch pizza than the area of the 12-inch pizza? Express your answer to the nearest hundreth.

35. Math

sand is being poured from one container to another. The sand flows from the shaded part to the the unshaded cone. The shaded part is full of sand. The sand empties into the unshaded cone and fills it to the top. What is the height of the unshaded cone?

36. Math

Directions: write and solve an algebraic equation or inequality for each problem. 1. Mabel has a total of 54 beads. Some are black and some are white. The ratio of the number of black beads to the number of white beads is 7:2. How many more black beads

37. NEED HELP MATH QUESTION ASAP

If you roll a 6 sided dice 6 times, what is the best prediction possible for the number of times you will roll a two? A) 6 B) 1 C) 2 D) 0

38. american history

Why did James K. Polk want to annex Texas? A. He was willing to give the Oregon Territory to Britain in exchange for Texas. B. He was a strong believer in Manifest Destiny. C. He had no choice but to follow public opinion. D. He believed that Mexico would

39. English

1. What warning does prince escalus give the capulets and montagues? 2. What agreement do Paris and lord capulet reach? 3.why does Romeo go to the capulets part?

40. ethics

Disloyalty, greed, mercilessness, prejudice, and intolerance are examples of: a. Moral virtues. b. Corrective emotions. c. Other-directed traits. d. Moral vices. is it D

41. physics

An electric dipole is made of two charges of equal magnitudes and opposite signs. The positive charge, q = 1.0μC, is located at the point (x, y, z) = (0.00cm, 1.0cm, 0.00cm), while the negative charge is located at the point (x, y, z) = (0.00cm,−1.0cm,

42. American history

Use the quotation and your knowledge of social studies to answer the following question. “[We] hereof do . . . enact, constitute, and frame, such just and equal Laws, Ordinances, Acts, Constitutions and Offices, from time to time, as shall be thought

43. MATH

Jennifer flipped a pair of coins 60 times. On 24 occasions, heads appeared on both coins. How is this outcome different from the expected outcome? A) It occurred 6 fewer times than expected. It occurred 4 more times than expected. It occurred 9 more times

44. Chem

How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 76.6 moles of water vapor?

45. L,o

Six suggestion on how to combat the violations of human rights and how they combat the human rights violation or discrimination

46. life orientation

SiX suggestions on how to combat the violations of human rights

47. life orientation

Identify your three human rights violation or discrimination and explain in am introductory paragraph why you choose the specific human rights violation or discrimination

48. Chemistry

The equation for fermentation of glucose to alcohol and carbon dioxide is C6H12O6= 2C2H5OH + 2CO2 The enthalpy for the reaction is -67kj. Is the reaction endothermic or exothermic? Is the heat energy absorbed or released as the reaction occurs? I think its

49. English

African slaughter rituals should be allowed in the suburbs

50. Physics

A 588.6 kN car moving at 1 km/hr instantaneously collides an stationary 392.40 kg car. If the collision is perfectly inelastic, what is the velocity of the car after collision?

51. Math

The measure of one acute angle of a right triangle is twelve more than three times the measure than the other acute angle. Find the measure of each acute angle of the right triangle.

52. english

why traditional healers are not allowed to prescribe medicines in hospitals and clinics?

53. math

Heong cut a slice of birthday cake . The slice formed the angle shown. What is the measure of the angle shown?

54. math

What is the area of the two-dimensional cross section that is parallel to the base of the cylinder, rounded to the hundredths place? Use. 3.14 for the value of pi. The radius is 5.2 m

55. Life orientation

Identify your 3 human rights violations or discrimination and explain in an introductory parameters why you choose the specific human rights violations or discrimination

56. Physics

The Atwood Machine consists of two masses suspended form a fixed pulley. If the first mass is 0.55kg and 0.8kg, (a) what is the acceleration of the system? (b) What is the magnitude of the tension in the string? (consider the pulley to be frictionless and

57. Chemistry

Calculate the total amount of heat that must be added to convert 15.7g of ice at its melting point to steam at 100.0°C

58. Math

(4 pts) Imagine that there is a circular track given by the equation x2+y2=2102500, where both x and y are measured in units of feet. At time t=0, Robin is at point (1450,0) and Shannon is at point (−170,1440). Both are running counterclockwise, with

59. English

African slaughter should be allowed in the suburbs speech

60. Physics

The volume flow rate in an artery supplying the brain is 4.59E-6 m3/s. If the radius of the artery is 5.33 mm, determine the average blood speed.

61. Life Orientation

May you assist me with six ways that the human rights violations influences indivituals groups and the broader South African community

62. math

If you walked 2 3/4 miles on Monday and then walked 3 1/3 miles on Tuesday, how many miles did you walk during those two

63. MATH!

There are 30 students in the gym. At least 16 of them are girls. Write an inequality to represent the number boys in the gym.

64. Math

There are 30 students in the gym. If at least 16 are girls, write an inequality to represent the number of boys in the gym.

65. Chemistry

Assuming the solution you used was 95% ethanol by volume and that the density of ethanol is 0.816g/mL, how much water and carbon dioxide are produced in the experiment? Equation: C2H6O+3O2-->2CO2+3H2O (You start off with 2.0 mL of ethanol)

66. chemistry

How many joules of heat are required to completely covert 85.0 grams of water at 40.0° C to steam at 100°C? For water: c = 4.179 J/g °C Hfusion = 6.01 kJ/mol Hvap = 40.7 kJ/mol

67. HELP PHYSICS PLS :)

A 15 g bullet strikes and embeds in a 2.1 kg block suspended at the end of a 1.2 m string. After the collision the string rises to a maximum angle of 22 degrees to the vertical. what is the speed of bullet? what I did MASS OF BULLET = 0.015 KG i found the

68. Math

Emma is using the Fermi process to estimate the number of standard sheets of U.S. writing paper that would need to be stacked on top of one another to reach the top of Mt. Mckinley. Emma knows that a standard sheet of writing paper is approximately 0.004

69. amerian history

What was the goal of Americanization programs in settlement houses? A. to combat the belief that native-born white Americans were superior to newcomers B. to help newcomers learn English and adopt American dress and diet C. to blend traditions from

70. chemistry

How many joules of heat are removed to completely covert 80.0 grams of water to ice at zero Celcius? For water: c = 4.179 J/g °C Hfusion = 333.528J/g Hvap = 2258.601 J/g

71. english

Which word would best describe speaker's attitude toward person she is address in the song? Did you have to do this? I was thinking that you could be trusted Did you know to ruin what was shiny? Now it's all rusted Did you have to hit me, where I'm weak?

72. MATH

Pat has 6 red, 1 yellow, 3 green, and 2 blue balloons. If she picks 1 balloon at random, what is the probability that the balloon will be green?

73. History

Sir Thomas More was executed because he A. would not stand with Henry VIII against the Protestant revolt. B. would not accept Henry VIII as head of the Church in England. C. protested the corruption of the Roman Catholic Church. D. set up a utopian

74. english

is traditional healer good to allowed to prescribe medicine in hospitals and clinics?

75. Math

Given that x=log3^5 and y=log3^2, rewrite log3^60 in terms of x and y.

76. History

4. which of the following was invented by Samuel F.B. Morse? A. sewing machine B. rail sleeping car C. telegraph D. folding cabinet bed Is the answer A or C?

77. Maths

A box is made of wood 5cm thick, its internal dimension are 10cm by 8cm by 11cm, what is the volume of the wood in the box

78. Maths

Is the sine, cosine and tangent using in right-angled triangles only?

he vapor pressures of several solutions of water-propanol(Ch3Ch2Ch2OH) were determined at various compositions, with thefollowing data collected at 45C: XH2O Vapor pressure (torr) 0 74.0 .15 77.3 .37 80.2 .54 81.6 .69 80.6 .83 78.2 1.00 71.9 a.) Are

80. Math

Madison has 48 ft of fence with which to fence in a rectangular garden. What is the maximum area she can enclose?

81. History help

14. Why did the Emancipation Proclamation free slaves only in the confederate states? A. President Lincoln did not have the authority to remove property from U.S. citizens. B. President Lincoln did not have the authority to naturalized Northern Freedmen

82. Acc

Six ways that the human rights violations influences individual, groups and the border south African community

83. Algebra

The temperature fell by 9°F today right a sign number to represent this temperature change

84. American History

Both Richard Nixon and Joseph McCarthy advanced their careers by A.Accusing political opponents of being Communist collaborators. B, Serving on the HUAC C, practicing the “multiple untruth” approach to interviewing witnesses D,collecting and

85. english lyrics help me

"welcome to new york" Walking through a crowd The village is aglow Kaleidoscope of loud Heartbeats under coats Everybody here Wanted something more Searching for sound we hadn't Heard before And it said Welcome to New Yory It been waiting for you It's new

86. english

Is african Slaughtering should be allowed in the surbubs

88. English

1. He preferred jazz to rock music. 2. He preferred jazz music to rock music. ========== Does #1 mean #2? Is 'music' missing after 'jazz' in #1? •English - Ms. Sue, Friday, November 13, 2015 at 10:33pm Since "jazz" obviously is music, the two sentences

89. Math

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 14% of the amount of oil remaining per year. Here, "instantaneous"

The initial impact of containment theory on Truman’s foreign policy can be seen in the president’s A,relationship with Yugoslavia’s Josip Tito. B.decision to intervene in the Greek civil war C,efforts to break the blockade of West Germany. D,offer to

91. Physics

An observer watching a fireworks display sees the light from the explosion and hears the sound 2 seconds later.How far was the explosion from the observer?

92. math literacy, economics,business studie,accounting, isizulu,English, life orientation

I am doing grade 11 in commerce class.and I still don't know my carrier choice. but I realised that am good in electricity stuff this year. so I want to be a electrician now.what I must do??help me out please

93. Math

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 14% of the amount of oil remaining per year. Here, "instantaneous"

94. Geometry

a pizza restaurant charges \$10.00 for a large one topping pizza in the shape of a circle with a diameter of 14 inches. To celebrate the World Series, the resturant decides to bake a pizza in the shape of home plate. The dimensions of the pizza are shown.

95. Algebra ll

Factor completely, then place the answer in the proper location on the grid. Write the answer in descending powers of x. 6x^4+15x^3y^2+3x^2y^3

96. Maths

Say I'm at an unknown distance from a mountain, called point P, and I estimate the angle of elevation to the top of the mountain is 13.5 degrees. Then I move to point N, which is 100 meters closer to the mountain, and I estimate the angle of elevation to

97. math help pls pls pls

Water coming out from a fountain is modeled by the function f(x) = −x2 + 8x + 2 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds. What does the average rate of change of f(x) from x = 1 to x = 4

98. Math

Imagine that there is a circular track given by the equation x2+y2=1123600, where both x and y are measured in units of feet. At time t=0, Robin is at point (1060,0) and Shannon is at point (560,900). Both are running counterclockwise, with Shannon running

99. Physics

A lighter block (2 kg) and a heavier block (8 kg) sit on a frictionless surface. Both blocks are initially at rest. The same force of 4 N then pushes to the right on each block for a distance of 9 m. What are the changes in kinetic energy of the blocks?

100. English

why bother to teach indigenous language?

101. help azap

A sandbox measures 15 ft wide, 20 ft long, and 1 ft tall. Which is the correct unit of measurement to use when describing the amount of sand that can fill the box? A. ft³ B. ft² C. ft

102. electricity

A series RL circuit contains two resistors.The resistors are 60ohm and 30ohm.when calculating the circuit values, what is the total resistance?

103. math

Which of the following measurements, in centimeters, could be the lengths of the sides of a triangle? Select all that apply. a)3cm,4cm,5cm b)4cm,10cm,14cm c)5cm,11cm,15cm d)6cm,6cm,13cm e)7cm,4cm,12cm f)8cm,10cm,17cm THANK YOU!

104. Maths

Conditional statement and illustrate with a venn diagram

105. Calculus

A stone is dropped from the edge of a roof, and hits the ground with a velocity of −170 feet per second. Assume the acceleration due to gravity is -32 feet per second squared. How high (in feet) is the roof?

106. Calculus

A closed box with square base is to be built. the bottom and the top of the box are to be made of a material costing \$2/ft^2, and all four sides are to be made of a material costing \$1/ft^2. what are the dimensions of the box of the greatest value that can

107. physics, english, chemistry, maths

A girl whose mass 404g walk up a flight of 20steps each 150mm height in 10s find the average power developed Hint g = 10m/S

108. math

Estimate the quotient by choosing a whole number close to the dividend that can be evenly divided by the divisor. 6.49/ 5= 1.298...???? 14.78 / 5 = 2.956...????

109. chemistry

What is the main factor driving the difference in the spontaneity of the three reactions Cl^2,Br^2, and l^2?

110. Math

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 14% of the amount of oil remaining per year. Here, "instantaneous"

111. ethics

According to Aristotle, human beings are different from all other living things because of our: A. tolerance for pain. B. reason and rationality. C. free will. D. faithfulness. im confused between B n C

112. History

What was the Columbian Exchange? A. The exchange of new goods globally as a result of European exploration B. A trading post established by Christopher Columbus C. An economic system set up by Christopher Columbus in the Americas D. The trading of goods

113. Math

Use the acidity model given by pH = −log[H+], where acidity (pH) is a measure of the hydrogen ion concentration [H+] (measured in moles of hydrogen per liter) of a solution. Compute [H+] for a solution in which pH = 6.2. (Enter your answer in scientific

114. AP

. Plant -+ Deer --+ Tiger The first step in the energy chain that created the bonds of proteins in the tiger's muscle cells in the food chain shown above is the A. deer the tiger ate. B. plant the deer ate. C. photons the sun made. D. carbohydrates the

115. math

A town population of 23,000 at present grows at an average rate of 2.5% every 8 years. a)What is the possible population of the town in 25 years? b)How many people were living in the town 10 years ago?

116. physics

Two cars of the same mass collide head -on and become tangled so that they move on together. If the engines of both were stopped at the moment of impact and the speeds of the cars impact were 120m/s ,find the joint velocity immediately after collision

117. Meteorology

the specific heat of ice is 0.5 cal/g degrees c. which will require more heat: heating 100g of ice to 20 degrees c, or heating 100g of liquid water to 20 degrees c?

118. Math

A new oil field has just begun production. The first oil removed is the easiest to get out, and so production falls as time goes on. The instantaneous rate at which oil can be extracted is 6% of the amount of oil remaining per year. Here, "instantaneous"

119. Statistics

. Two cards are drawn at random, without replacement, from a standard 52-card deck. Find the probability that: (a) both cards are the same color (b) the first card is a face card and the second card is black

120. Statistics

In a certain Math class, the probabilities have been empirically determined for various numbers of absentees on any given day. These values are shown in the table below. Find the expected number of absentees in a given day. Number of absentees, x 0 1 2 3 4

121. Chemistry

if the pressure on a 1.00 L sample of gas is increased from 760. mm Hg to 2.00 atm at constant temperature what will the volume of the gas sample

122. Statistics

A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 14 hours, with a standard deviation of 2.0 hours. It is desired to estimate the mean viewing

123. Algebra

Please help ASAPPP!!!! I have no idea how to even start on this! f(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps and wrote your final answer in factored form. If someone could help me work through this problem that would

124. Math

Let z=−93√−9i. When z is graphed in the complex plane, what radian angle does it make with the positive x-axis? What radian angles do z2, z3, and z4 make with the positive x-axis? z2: z3: z4: For what values of n does z^n lie on the positive x-axis?

125. algebra

it costs \$2000 to purchase a copier, and each copy costs \$0.02 to make. what is the fixed cost? what is the variable cost? and what is the cost equation for c in the terms of x?

126. physics

The (non-conservative) force propelling a 1.40 x 103-kg car up a mountain road does 7.60 x 106 J of work on the car. The car starts from rest at sea level and has a speed of 22.0 m/s at an altitude of 2.50 x 102 m above sea level. Obtain the work done on

127. math

There are 40 slots in a roulette wheel,19 are red, 19 are black, and 2 are green. if you place a \$1 bet on red and win, you get \$2( your original point \$1 and an additional \$1) returned. what is the expected value of a \$1.00 bet on red.

128. math

the angle of elevation of the sun is 27 degree.a man is 180cm tall.how long is his shadows?give your answer to the nearest 10cm

129. english

"Welcome to New york" lyrics Walking through a crowd The village is aglow Kaleidoscope of loud Heartbeats under coats Everybody here Wanted something more Searching for sound we hadn't Heard before And it said Welcome to New Yory It been waiting for you

130. algebra

A mortgage broker purchased two trust deeds for a total of \$290,000. One trust deed earns 9% simple annual interest, and the second one earns 12% simple annual interest. If the total annual interest from the two trust deeds is \$31,500, what was the

131. chemestry

Sodium vapour lamps used for public lighting emitting 589 nm yellow light. Calculate the energy emitted by: an excited atom when it generates a photon at this wavelength and calculate the energy emitted by 0.1mol of excited Sodium atom at this wave length?

132. FINANCIAL HELP

hello,,, We offer a variety of loans to individuals (personal loan) and cooperate bodies at an interest rate of 3% per annul.This is to help you meet your financial obligations, especially with the ongoing global financial crisis. We render out good loan

133. Math

Let z=−93√−9i. When z is graphed in the complex plane, for what values of n does zn lie on the positive x-axis?

134. math

a sum of 380 is divided between Kelvin and Winne.Kelvin spends 3/4 of the amount received,while Winner spends 2/5 of the amount received.if Winnie spends 32 less than Kelvin,how much does ach of them receive?

135. Us history

The reconstruction finance corporation aimed to

136. physics

A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 70 kg. A person pushes on the outer edge of one section with a force of F = 74 N that is directed perpendicular to the section. Determine the

137. math

the 9th term of an arithmetic sequence is 29. the 16th term is 50. what is the 20th term ?

138. Chemistry

A gas is trapped in a balloon. The gas chambee is 1.0 atm, the volume is 0.066 L, and the temperature is 298 K. When the temperature is changed to 308 K and the pressure remains constant, what is the new volume of the balloon?

139. Math

x P(x) 0 0.3 1 0.15 2 0.2 3 0.35 Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places

140. Math

Eric had 8 apples. He gave away 1/4 of them. How many apples did he give away?

141. physics

Spring of 20cm extend to 30cm under a force of 10N.what will be its total length when extended by a force of 10N?

142. Life Orientation

ways that the human rights violation influence groups

143. Physics

Initially a battery circuit consists of a 25 ohm load connected to a battery with 3 ohms of internal resistance and the circuit draws 1.5A of current. What is the terminal voltage and EMF of the batter? How much (%) power is wasted? Please help, this

Both words seem to fit: Though there has of late been a good deal of (countenance, agitation) for tax reform, nothing much has come of it so far.

145. Chemistry

Titration of 12.50 mL of HCl solution requires 22.50 mL of 0.1250 M NaOH solution. What is the molarity of the HCl solution?

146. Math

A mirror is 3 1/2 foot wide is hung in the center of a 9 foot long wall. How much wall space is left on each side of the mirror?

147. Math

Which is equivalent to the inequality shown below? z/2 (less than equal too) - 15 a, x (x greater than equal too) - 7.5 b. x (less than or equal too)-7.5 c. x (greater than equal too) - 30 d. x (less than equal too) - 30 How do I solve this problem

148. Further maths

The first thirdd and ninth terms of am AP are the first three terms of a GP. If the seventh term of AP is 14, calculate (a) the 20th term (b) the sum of the first twelve terms of the GP

150. Chemistry-Dr.Bob222

Like a equilibrium constants, the values of Kw depends on temperature. At body temperature (37 C), Kw= 2.4 x 10^-14. What are the [H3O+] and pH of pure water at body temperature?

151. math

A triangular traffic island has a base half as long as its height. The island has an area of 289 m2 . Find the base and the height.

152. Physics

If the average gauge pressure in the artery is 1.41E+4 Pa, what must be the minimum height, h of the bag in order to infuse glucose into the artery? Assume that the specific gravity of the solution is 1.04.

153. Calculus

Let 𝑆 be the region (in the first quadrant) bounded by a circle 𝑥^2 + 𝑦^2 = 2, 𝑦^2 = 𝑥 and the 𝑥-axis (ii) Find the volume of the solid generated by rotating the region 𝑆 about the 𝑦-axis (c) Find the surface area of the solid

154. World History

Can somebody check over my answers my answers are : B;C;B;A;D;C;A;B;D;C;A;B;B;B;C;D;A;A;B;C;… C;D;1. Trench warfare caused the immobilization of troops on the (1 point)Western Front.Middle Eastern desert.Eastern Front.mountains in Russia.2. After the

155. math

If the store purchases an item at a wholesale cost of \$3.50 per item, and it is sold at a retail value of \$5.00 per item. What is the gross profit percentage of the item?

156. Life orientation

Why is to difficult to stop human trafficking

157. Physics

Imagine we have two identical batteries with emf = 1.8V and an internal resistance of 0.6 ohms. Now we connect the batteries to a circuit with total resistance of 50 ohms. What is the maximum amount of power we can dissipate in the 50 ohm load? what is the

158. economics managerial

total revenue equation TR = 5000Q – 5Q2 and total cost equation C = 500 + 3Q2 Calculate this firm’s profit maximizing price, quantity, total revenue, total cost, and total

159. math

trying to verify the volume of a rectanguler prism h=10 inches w=2 and the formula to find the volume is l.w.h not a math genius just trying to make sure i am calculating this correctly to find the lengh we had to divide the width of the prism so 2 inches

160. English

Andy and Kate are really good singers. They can dance well,too. --------------------------- What does the first sentence above mean, #1 or #2? 1. They are prefessional singers and they sings well. 2. They are not professional singers. They just sing songs

161. math

Factorise 3x^4-6x^3=

162. life orientation

Activity 1 Research on hunan rights violation or discrimination

163. English

Janet will play badminton on Monday. ============== How do you pronounce "Janet"? Is "Janet" pronounced [..nit] or [..nuht]?

164. math

If there are 150 students in the club and a recent survey shows that 3 out of 5 prefer Tues. meetings, how many do not want to meet on Tues. ?

165. english

identify what the second metaphor compares Our song is a slamming screen door Sneakin' out late, tapping on your window When we're on the phone, and you talk real slow Cause it's late and your mama don't know Our song is the way you laugh, on the first

166. Physics

a 2x10^-6 point charge travels a distance of.002m between two parallel charged plates from the negative end toward the positive end. The field has a strength of 500 N/C What is the change in voltage?

167. science

What are the factors that influence the rate of reaction??

I'm so confused with the whole factorising process. Please help explain: How do we take out the highest common factors in the expressions: a)5ac+10ab-25ad b)8m-24mn c)30gh+15fg-5fh

169. Maths

Solve z^5 =-1 with the solutions in polar form. I've solved the equation z^5 =1, which I have Letz=r(cosθ+isinθ). Also,1=cos0+isin0. Sotheequationis (r(cosθ+isinθ))5 =cos0+isin0. how would i go about it with the negative 1 though?

170. english

"Welcome to New york" lyrics Walking through a crowd The village is aglow Kaleidoscope of loud Heartbeats under coats Everybody here Wanted something more Searching for sound we hadn't Heard before And it said Welcome to New Yory It been waiting for you

171. world history

what merchants controlled most land and maritime trade route leading up to the 1400

172. Chemistry

We did an experiment where we had to figure out the amount of water molecules in CuSO4xH2O (x being the value to find). If the stirring rod used was wet and was used to stir the beaker would this result in a higher x value? Is this a experimental or human

173. Physics

Calculate the kinetic energy of a car of mass 1200kg moving at 1.8m/s The car engine is Switched Off calculate the height the could rise up a hill before coming to rest if there is no energy loss due to friction assume g= 10N/kg Into what form has the

174. Math

Solve the polynomial: 2x + 2y^2 + 5y

175. math

Malcolm wants to enlarge a 2-inch by 3-inch photograph by multiplying its dimensions by 5. How will the area of the photograph be affected?

176. Physics

If a car can accelerate at a rate of 15 m/hr/sec how long will it take the car to get to 65 m/hr from a dead stop?

177. Math

Need to figure out surface area of 144 times larger than 1928^2. SA=1928in^2 Answer in feet^2. My equation is SA = (1928in^2) (144^2) = 1928 x 20736 = 39,979,008 / 12in^2 = 3,331,584 ft^2 the correct answer is 251,712ft^2 can't seem to get it..........

178. Calculus (easy)

What is the polar form of (-2-2i)?

179. math log rules / chem

hey so i have this equation i need to manipulate to solve for F- concentration. E1 = constant - 0.05916log[F] E2 = constant -0.05916log([F]+[Spiked]) E2-E1=-0.05916log(F+S) + 0.05916log[F] E2-E1/0.05916) = log[F+S] + log[F] how do I solve for log[F] ???

180. life orientation

identify three human right violation or discrimination

181. Englidh

Like everyone else, I want to be well liked, but I will not (grovel,fluctuate)before public opinion when I am firmly convinced that it is wrong.

182. Chemistry

Given the amount of limiting regeant that you started with, how many moles of solid product did you expect to produce? Started with 1.12g of iron LR - iron Equation is 2Fe + CuSo4 -> Fe2So4 + Cu

183. Math

When rounded to the nearest hundredth which number equals0.61

184. Functions

Write an equation for a graph if period = 180, and amplitude = 6.. Given this information, is 6tanx not a proper answer? The back of the book says that the answer is 6sinx (2x)

185. history

What is the biggest secret if jose rizal??

187. Physics

A car is moving such that its kinetic energy is 6.20×105 J. The car accelerates and the engine does 2.90×105 J of work to accelerate the car. What is the final kinetic energy of the car? Ignore energy lost to friction. (Your answer must be accurate to at

188. Math

0-foot ladder is leaning against a wall. The base of the ladder is 2 feet from the base of the building. How far up the building does the ladder fall

189. Geography

Three main causes of human induced climate change include the following... A. Greenhouse gases, solar output, and deforestation B. Land use changes, greenhouse gases, and the Milankovitch cycles C. Aerosols, greenhouse gases, and solar output D. Aerosols,

190. Geography

Cause of military overthrow of Nigeria's government in 1980's. I think that it could be that there was pressure on the military because people wanted democratic elections? And the military general didn't want that? The textbook didn't go into details so it

191. Brand packaging and design

12. Rico and Liz are analyzing a project scope. Rico says they should consider the brand's message, identity, and architecture. Liz says they should consider the brand's hierarchy, sustainability, and the impacton the packaging design. Who is correct? A.

192. Analytic Geometry

Find the coordinates of the foci, the ends of major and minor axis, the ends of latus rectum then sketch the graph of y^2/169 + x^2/144 =1 (i need the anwers to that i will have an idea on how to solve the remaining !@#\$%^&.)

193. Math

There are 6 red, 9 blue, and 5 green marbles in a bag. Samantha reaches into the bag and chooses one marble. Which color has a 1/4 chance of being chosen? Explain how you know your answer is correct.

194. algebra

There are 6 students in a club. For a certain activity, 4 of the students need to form a separate group. How many ways can this group of 4 students be formed?

195. Computing

How can you count the number of items in the array - what do you have to add to this code? Click the button to sort the array. Try it var fruits = ["Banana", "Orange", "Apple", "Mango"]; document.getElementById("demo").innerHTML = fruits; function

196. math log rules / chemistry

hey so i have this equation i need to manipulate to solve for F- concentration. E1 = constant - 0.05916log[F] E2 = constant -0.05916log([F]+[Spiked]) E2-E1=-0.05916log(F+S) + 0.05916log[F] E2-E1/0.05916) = log[F+S] + log[F] how do I solve for log[F] ???

197. Physics

An egg is thrown from the top edge of a 22.9 m high building down onto an unsuspecting person standing on the ground 6.2 m from the base of the building. If the egg is tossed horizontally, at what speed, in m/s, must the egg be thrown such that it lands on

198. algebra

16oz of nails is to be made of a combination of nails one that costs four dollars per oz and another that costs eight dollars per oz. How many oz of each kind of nails would you need to equal 16oz of a mixture of nails that costs seven dollars per pound?

199. Citations

For these webpages, how can I write an mla format bibliography for each one of them? geology. com/articles/marcellus-shale.shtml healthresearchfunding. org/marcellus-shale-pros-cons/ marcellus-shale. us/

200. carpentry

my patio is 30ft by 10 ft. How many 12"by12" square stone steps do I need?

201. Physics

If a car can accelerate at a rate of 15 m/hr/sec how long will it take the car to get to 65 m/hr from a dead stop?

202. Maths

Tom reads that each seedling he is planting needs an area of 150 square centimetres of garden. Tom has 80 seedlings to plant. What is the total area of garden the seedlings will need? Give the area in A: Square Centimetres or B: Square Metres

203. american history

Which of the following describes the ideas of W.E.B. Du Bois on civil rights? A. Equal rights were not a privilege that needed to be earned and society as a whole should carry the burden of achieving equality. B. African Americans should focus their energy

204. math

Jay purchased a new leather jacket on sale at a 40% discount. The origanal list price was \$320. What wad the amount of the discount. I just need to learn how to do this kind of question because my teacher did not teach me this.

205. Maths

A pool holds 12000 L of water. to empty the pool ,water is pumped out at the rate of 150 L/min. how long does it take to empty the pool?

206. English

Confusing which one fits? Like everyone else, I want to be well liked, but I will not (grovel,fluctuate)before public opinion when I am firmly convinced that it is wrong.

207. Statistics

A test has a mean of 150 and a student performed 1 standard deviation above the mean. What score did the student have on the test?

208. math

Is it necessary to rename if you are subtracting 4 1/4- 2 1/4? why

209. History

who was the 34th president who had no taxes

210. Math

lisa used 4/5 cup of flour with 1/3 cup of salt when cooking. how many cups of flour will she need if she uses 1 cup of salt?

211. Math

A dress cost \$12 more than a shirt. Yasmin bought 3 such dress and 5 similar shirt for \$356.hoe much did she pay for each shirt? I just can't work it out :( so I total 3 dresses most \$36 more than the shirt.. Then. I am lost.

212. Analytic Geometry

How can i identify in the graph of an ellipse where is b, a, c, the vertices, the foci, the latus rectum, the essentricity and the directrix. Please reply. Needed for my studies tonight :/ midterm exam tom. :/

213. Dosage calculations

1000 mL has been infused in 8 hours at 150 ml/hr. After 3 hours, how many have been infused? 1000/8 = 125 ml 125 x 3 =375ml? Therefore after 3 hours 375ml has been infused Is this correct?

214. Analytic Geometry

find the coordinates of the foci, the ends of the major and minor axis and the ends of the latus rectum. sketch the graph x^2/25 + y^2/9 =1

215. science

can you please tell me some alkalis you would have in your house xxx

216. mathematics-abstract equations

x+y+√z=148 x+√y+z=82 √x+y+z=98 find x,y,z given that x,y,z are all positive integers. Please i need the solution #thanks

217. math

Wha is a vertex, a focus, an eccentricity, and a latus rectum

218. science

the solubility of an unknown substance is 120 grams of water at 70 degrees celsius. What is it?

219. math

| x + 1 | + 6 = 3

220. stats

Given a normal population whise mean is 50 and whise standard deviation is 5, find the probability that a random sample of 25 has a mean greater than 52.

221. Science

Hi, I have to revise for an upcoming test and I was a little bit confused about selective breeding. Please help Jiskha :)

280

223. life orientation

3human rights violation or discrimination

224. Science

what volume of NH3 gas at s.t.p. is required to neutralise 40cm3 of 2M H2SO4?

225. Science

What is water vaper

226. Science

calculate the weight acting on an object of mass 10kg Taking g=10m/s

227. Physics

A block of mass M=0.525kg is floating stationary in a beaker of water. A string connected to the bottom of the beaker holds the block in place. The tension in the string is 7.10 N. The bottom of the block is floating a distance h=1.66cm above the bottom of