# Questions Asked onMay 2, 2013

1. ## Physics

A 500g block is shot up a 25degree incline with an initial speed of 200cm/s. Determine the distance, d, that it will go up the incline if the coefficient of kinetic friction between it and the incline is 0.150? Use Entergy considerations to solve the

13. Mia charges \$2.25 per hour when she babysits, plus \$5.00 for transportation expenses. Write a function rule to represent the amount y Mia charges to babysit for x hours. (1 point) y = 2.25x + 5.00 y = 5.00y + 2.25 y = 5.00x + 2.25 y = 7.25x 14. The

3. ## Health

1. It is not possible to get a good workout at home. True *False 2. Most home equipment is expensive. *True False 3. A treadmill is a good choice of home equipment for a person who wants to improve their cardiovascular fitness. *True False 4. Something as

4. ## chem 1

A gas-forming reaction produces 1.35 m3 of gas against a constant pressure of 143.0 kPa. Calculate the work done by the gas in joules.

5. ## Math help

You buy 3 pounds of organic apples for \$7.50. The graph shows the price for regular apples. What is the unit rate for each type of apples?

6. ## math

If cos25+sin25=k then the value os cos20 is ?

7. ## Math Ms. Sue please

6. Use the function rule ƒ(x) = x2 – 5x + 1. Find the output ƒ(–3). (1 point) 7 –5 25 5 7. Suppose you earn \$12 each time you mow the lawn. Use function notation to describe the relationship between your total earnings E and the number of times m

8. ## algebra

Cryptic Quiz 1. What do you call a skydiver with the flu? 2. How do you crash a houseboat party?

9. ## physics urgent please asnwer it i m begging u

a metal sample carrying a current along X-axis with density Jx is subjected to a magnetis field Bz(along z-axis). the electric field Ey developed along Y-axis is directly proportional to Jx as well as Bz. the constant of propotionality has SI unit. 1.

10. ## chemistry

A 1.857 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.540 grams of KI and 50.00 mL of a 0.00912 M KIO3 solution. The excess I3– was

11. ## physics

A dentist uses a small mirror with a radius of 40 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of the image?

12. ## math

a two figure number is written down at random find the probability a)that the number is greater than 68 b)the number is a multiple of 9 c) it is less than 100 d) it contains at least one 5 (i.e a number such as 15 or 55

13. ## pre algebra

At the beginning of the year 2000, Bob put \$100 in a savings account. The bank pays Bob 5% interest on his total savings at the end of each year including all interest added to the account. Assume the interest rate continues and Bob does not deposit any

14. ## Physics (Momentum)

Can anyone please help me with this question? I don't understand why the speed is v m/s. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? Thanks I know that I have to use

15. ## Statistics

Assuming that the heights of college women are normally distributed with mean 66 inches and standard deviation 2 inches, what percentage of women are shorter than 72 inches?

16. ## Physics!

Imagine a giant dry-cleaner's bag full of air at a temperature of -31 floating like a balloon with a string hanging from it 15 above the ground. Estimate what its temperature would be if you were able to yank it suddenly back to Earth's surface.

17. ## physics

A hoop of radius 0.50 m and a mass of 0.20 kg is released from rest and allowed to roll down an inclined plane. How fast is it moving after dropping a vertical distance of 3.0 m ?

18. ## AP Chemistry

CH3NH2(aq)+H2O(l)=>CH3NH3+(aq)+OH-(aq) Kb=4.4 x 10^-4 Methylamine, CH3NH2, is a weak base that reacts with water according to the equation above. A student obtains a 50.0 mL sample of a methylamine solution and determines the pH of the solution to be

19. ## Physics

A big 2.5 blob of macaroni and cheese falls to the floor in 1.2 seconds. Find the momentum of the blob just before it hits the ground.

20. ## science

A linear circuit is shown below in Figure 1. Figure 1 The elements in this circuit have the following values: R1=100Ω, R2=200Ω, R3=350Ω, V=5V, and I=0.004A. Determine the potentials drops vA and vB across resistors R1 and R2 respectively. What is the

21. ## Physical Science

10. The more compact a metal is, the less brittle it becomes. -True? I'm confused about this one because of what the textbook says: "the more compact the atoms become, the harder the metal becomes. While the compactness makes the metal hard, a fracture on

22. ## chem

Write the orbital notation for chromium. Type your answer using the noble gas abbreviation of the configuration and only the symbols in the table below. Enter the major energy levels with their sublevels in the order in which they are filled. Enter filled

23. ## Algebra

The data below represents the average score per game of the top 40 NBA players, rounded to the nearest whole number. Find the minimum, Q1, median, Q3, maximum for the data. Stem l leaf 1 l 55667777888888899 2 l 00000011123445566679 3 l 135

24. ## Physical Science

10. The more compact a metal is, the less brittle it becomes. -True? I'm confused about this one because of what the textbook says: "the more compact the atoms become, the harder the metal becomes. While the compactness makes the metal hard, a fracture on

25. ## biology

Hemoglobin is a critical oxygen-carrying protein. The protein functions as a tetramer with two α-globin subunits and two β-globin subunits. Individuals homozygous for a specific single point mutation in the region that encodes the sixth amino acid in

26. ## Maths

1) Simplification (trigonometric ratios of allied angles)? Simplify : i) [cos^2 (2x180-A). tan^2 (180+A). sec^2 (180-A)] / [ sin^2 (3x180+ A). cosec^2 (-A). cot^2 (90+A)] ii)[ cos(90+A). sec(270+A). sin(180-A) ] / [ cosec (-A). cos (270-A). tan (180+A) ]

27. ## Algebra

How many hands of 5 cards can be made from a standard deck of cards such that each hand contains exactly 1 red card and 4 black cards?

28. ## Physics

A big 2.5 blob of macaroni and cheese falls to the floor in 1.2 seconds. What is the impulse on the blob?

29. ## Education

During the Civil Rights movement in the 1960s, the chief concern with respect to schooling was A) equal funding of schools. B) access to and equity in public education. C) improving test scores of all children. D) removing prayer from public schools. I

30. ## Algebra

The stem-and-leaf plot represents the average monthly high temperatures in Tampa, Florida. What is the first quartile (Q1) of the temperatures? Round to the nearest tenth. Stem leaf 6 9 7 1267 8 14799 9 00

31. ## statistics

Linda Silbers is a social scientist studying voter opinion about a city bond proposal for a light rail mass transit system in Denver If Linda wants to be 90 percent Confident that her sample estimate of the proportion of voters who favor the bond is within

32. ## Algebra

Evaluate the following function at the indicated values. H(x) = 2x (a) H(-3) = (b) H(0) = (c) H(5) =

33. ## Chemistry

Given the following unbalanced equation C4H10 (g) + O2 (g) → CO2 (g) + H2O (l) What mass of water forms if 6.5 L of C4 H10 (g) measured at STP is allowed to react with 32.0 L of O2 (g)measured at 27°C and 1.68 atm pressure? Would it be 26.1 (g)

34. ## Scale Drawings

The height of the model is 11-1/4 inches. What is the actual height of the building?

35. ## biology

Consider the following 45 base-pair (bp) DNA sequence: 1 10 20 30 40 | . | . | . | . | . 5’-CGCACCTGTGTTGATCACCTAGCCGATCCACGGTGGATCCAAGGC-3’ ||||||||||||||||||||||||||||||||||||||||||||| 3’-GCGTGGACACAACTAGTGGATCGGCTAGGTGCCACCTAGGTTCCG-5’ You also

36. ## Math

A trail mix contains a 4: 7 ratio of raisins to peanuts. How many kilograms of raisins are there if there are four kilograms of peanuts in the mix?

37. ## statistics

A sample survey interviews an SRS of 263 college women. Suppose (as is roughly true) that 75% of all college women have been on a diet within the past 12 months. Using the Normal approximation, what is the probability (±0.001) that 82% or more of the

38. ## Physics (Momentum)

Please help me answer this problem.How do I answer this if I don't have the mass of the monkey and the scooter together? At a circus animal training facility, a monkey rides a miniature motorscooter at a speed of 7.0 m/s. The monkey and scooter together

39. ## MATHS

Charis and shermin are given money each. If Charis and shermin spend \$60 and \$30 each day respectively. Charis will still have \$600 when Shermin has spent all her money. If Charis and Shermin spend \$30 and \$60 each day respectively. Charis will still have

40. ## Physics

A 350 kg cannon shoots a 10 kg cannon ball at a speed of 420 m/s. Find the recoil velocity of the cannon.

41. ## math

Todd is moving sand from his driveway to the backyard. The wheelbarrow weighs 30 kilograms when it is full of sand. When it is empty, it weighs 12 kilograms. How many grams of sand did Todd move if he filled and emptied the wheelbarrow five times?

42. ## 5th grade math (word problems)

I'm not sure how to solve this: A group of friends went to an amusement park. 10 of them rode the ferris wheel, 15 rode carousel, and 11 rode the roller coaster. 7 of them rode both the ferris wheel & roller coaster. 4 rode both the ferris wheel &

43. ## algebra

Beginning with cars made in 1981, all vehicles must contain a 17-digit Vehicle Identification Number (VIN). The first 3 positions must be letters or numbers, position 4 and 5 must be letters, positions 6 and 7 must be numbers, position 8 can be a letter or

44. ## English

1. When it is convenient to you, I'll visit you at 6. (In this sentence, what does 'it' refer to?) 2. He paid all the debts by automatic deposit. 3. The baby peed/weed on the diaper too much. 4. You should teach the baby to give out dung in the bathroom

45. ## algebra

Christine lives in Bangor, Maine , and her friend Denise Brown lives in Sioux City, Iowa. They both drive to Dade City, Florida, for the winter. The trip is 1600 miles for Christine and 1500 miles for Denise. If Christine drives 5 miles per hour faster

46. ## english

Regarding the use of commas, which one of the following statements is accurate? A. A parenthetical use of commas is usually confusing to the reader. B. There is no need for commas that indicate added details in a sentence. C. Commas are needed to separate

47. ## physics

A jeweler inspects a watch with a diameter of 3.6 cm by placing it 8.0 cm in front of a concave mirror of 12.6 cm focal length. (a) Where will the image of the watch appear? (b) What will be the diameter of the image?

48. ## physics

A projectile was fired out of a lead ejector at an angle of 45 degrees up from horizontal. The projectile velocity was 1000.00 meters per second. How high did it go? and how far did the projectile go?

49. ## Chem

Which of the following will be more soluble in an acidic solution than in pure water? SrSO4 CsClO4 CuCN Ni(OH)2 AgCl Please help explain why! I've tried submitting the ones that are insoluble in water and it was wrong. I know it has something to do with

50. ## Math

The length of a rectangle is 11 cm less than 3 times its width. If the area of the rectangle is 20 square inches, find the length and width

51. ## Chemistry

for the reaction 2NaOH + h2SO4 yieda 2H2O + Na2SO4 if .80 moles of NaOH are used, how many moles of H2SO4 must be used?

52. ## dlabesuthe high school

In 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community provide relavant sources to support your claims

53. ## Life orientation

Identify and discribe 3 environmental health hazards that cause il health, crises and or disasters within your community or any other community within south africa and globally

54. ## PHYSICS!

The quantity of heat that changes the temperature of a mass of a substance is given by , where is the specific heat capacity of the substance. For example, for , . And for a change of phase, the quantity of heat that changes the phase of a mass is , where

55. ## Math help please ASAP

15. Do the data in the table represent a linear function? If so, write a rule for the function. x –3 –2 –1 0 1 y 1 –2 –5 –8 –11 (1 point) yes; y = –3x – 8 yes; y = 1/3x – 8 yes; y = 1/3x + 8 yes; y = 3x + 8 16. Write a quadratic rule

56. ## intermediate value thorem

Use intermediate value theorem to show that the polynomial function has a zero in the given interval. f(-3)= value of 0=

57. ## Language Arts

Which sentence below has a missing antecedent? A Many people are planning to attend the race, so we should get to the park early. B My parents are both swimmers, so I know a lot about it. C When Steven and Patrick went to the movies, he bought the tickets.

58. ## Life orientation

Suggest 5 recommendations on how to adress the environmental problems within you community or any other community within south africa and globally

59. ## math

You are off to soccer and love being a goalkeeper, but that depends who is the coach today : - with coach Ahmed the probablity of being a goalkeeper is 0.5 -with coach Usman the probability of being a goalkeeper is 0.3 Ahmed is coach more often.About 6 out

60. ## Math-calculus

Evaluate ∫∫ln(x^2+y^2)/sqrt(x^2+y^2) dA where 1≤x^2 +y^2≤e

61. ## Life orientation

Name 5 sources of the enviromental health hazard tha can contribute to one's ill healthinside home

62. ## English

Please could you help me with this paragraph. How is my English grammar and usage? Do I need to make any corrections? "I have been checking for the status of positions I applied at Willmut Gas, but no actions have been taken yet. Somehow, the cashier

63. ## english

Hello, I have to explain my study group negative concord, but I don't really understand what it is.. I read about it, I google it but what exactly is negative concord? Can one of you maybe explain it to me?

64. ## chemistry

The volume of a mass of gas is 300 ml at 25°C and 685 torr. What will the gas occupy at STP? Would the answer be 248 ml?

65. ## Calculus

Consider the lamina ( with uniform density .01m) having the shape of the region Q in the xy-plane: 1≤x^2+y^2≤4. The density at each point P varies directly with the distance from P to the origin, with density at the point P(2,0,0) being 10kg/m3.Find

66. ## Science help.

You make a terrarium for your school’s science fair by putting some soil into a glass container and adding small plants. You moisten the soil with water and add a slug. You cover the terrarium with clear plastic that has vent holes. Then, you place the

67. ## Calculus

lim x->0 (sinx)^x

68. ## physics

Two cars collide head on and stick together. The one moving East was going 20.00 m x sec-1 and had a mass of 1500.0 kg. The one heading West was going 25.00 m x sec-1 and had a mass of 1000.0kg. I n which direction were the two cars moving and how fast

69. ## geometry

What did Mrs. margarine think about her sisters husbund

70. ## maths

Given a positive integer n, let S(n) denote the digit sum of n. Consider the sequence of numbers given by n₁ = S(n) nk = S(nk−1)k≥2 For how many positive integers n ≤ 2013 does the sequence {nk} contain the number 9?

71. ## Calculus

function f(x)=x3x2−1 defined on the interval [−16,16] A. Find the vertical asymptotes of function f(x) B. Find where it is concave up C. Find the inflection points

72. ## Chemistry

A gas occupies 275 ml at 0°C and 610 Torr. What final temperature would be required to increase the pressure to 760 Torr, the volume being held constant?

73. ## Calculus

function f(x)=x3x2−1 defined on the interval [−16,16] A. Find the vertical asymptotes of function f(x) B. Find where it is concave up C. Find the inflection points

How is a summon different from a friendly invitation

75. ## algebra1

mr jones estimates his profit starting in 2006 will be given by the formula p=7t^2-14t+10 where t is number of years and p is the profit.if this formula is correct,when will mr.jones have a profit of more than \$1000. please help

76. ## math

Find the probability between 42 and 48 speeders in a random sample of 100

77. ## Physics (MOMENTUM)

Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you.

78. ## Ss

•British and French military ships were stopping American merchant ships and “kidnapping” sailors •British were helping support the Native Americans in attacks against the Americans •BOTH ABOVE STATEMENTS WENT AGAINST THE TREATY OF PARIS 1783

79. ## economics

19-1 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high- or low-risk consumers, is there an adverse selection problem? 19-2 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a

80. ## Calulus

At what interval is 2x^3+0x^2-54x+6 increasing?

81. ## Science

Does the energy move from Earth’s surface and atmosphere out to space through radiation, conduction, or convection? Explain.

82. ## algebra 1

*I have asked countless people to help me with this story problem and nobody seems to know how to do it! Please help! Natalie performs a chemistry experiment where she records the temperature of an ongoing reaction. The solution is 93.5º C after 3

83. ## physics

It takes 228 kJ of work to accelerate a car from 22.3 m/s to 29.2 m/s. What is the car's mass?

84. ## physics

While a roofer is working on a roof that slants at 43.0 above the horizontal, he accidentally nudges his 88.0 toolbox, causing it to start sliding downward, starting from rest.If it starts 5.00 from the lower edge of the roof, how fast will the toolbox be

85. ## economics

19-1 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high- or low-risk consumers, is there an adverse selection problem? 19-2 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a

86. ## chemistry

magnesium in flashbulbs burn according to the equation 2Mg + O2 ---> 2MgO what mass of Mg combines with 5.80 L of O2 measured at STP?

87. ## Math

Natalie performs a chemistry experiment where she records the temperature of an ongoing reaction. The solution is 93.5º C after 3 minutes; 90º C after 5 minutes, 84.8 C after 9 minutes; 70.2º C after 18 minute; 54.4º C after 30 minutes; 42.5ºC after

88. ## Math

Ben say his computer screen is 5 decimeters long.kim says her computers screen is 52 centimeters long.who computer screen is longer?

89. ## Math

Davids poster is 62 centimeters long.teds poster is 7 decimeters long.who posters is longer

90. ## Math

The digit in the hundreds place is a square number, and it is odd. The digit in the tens place is 1 more than the square root of 16. The digit in the hundredths place is 0.1 larger than 1/10 of the digit in the hundreds place. The digit in the thousands

91. ## chemistry

what is the volume in liters in H2gas produced at 24 degree celsius and 835 mmhg from the reaction of 12g of many thanks

92. ## math

graph the following functions. label the axis of symmetry, vertex, and points: y=x^ -5x +4

93. ## algebra

Consider the following system of inequalities: {(c−1)x^2+2cx+c+4≤0 cx^2+2(c+1)x+(c+1)≥0 The sum of all real values of c, such that the system has a unique solution, can be written as ab, where a and b are coprime positive integers. What is the value

94. ## CHEMISTRY

IF 100.0G OF WATER AT 90'C IS ADDED TO 50.0G OF WATER AT 10'C, ESTIMATE THE FIBNAL TEMPATURE OF WATER. EXPLAIN YOUR REASONING. PLEASE HELP I DON'T GET IT AND I HAVE ANOTHER PROBLEM SIMILAR TO THIS

95. ## biology

A common first step in the making of a DNA library is to obtain DNA from many of your chosen organisms and cut this source DNA with a restriction enzyme. It is likely that some genes will contain sites for the chosen restriction enzyme, and in this case,

96. ## biology

A plasmid (vector) designed for use in bacterial cells is different from a plasmid (vector) designed for use in yeast cells. Listed below are three DNA features found on both plasmid types. If the DNA sequence of each feature could be the same on the two

97. ## Science

Identify six renewable (as opposed to depleted) sources of energy.

98. ## biology

Alcanivorax is a naturally occurring oil-degrading marine bacterium that can quickly become the predominant microbe in oil-contaminated open oceans and coastal waters. To identify the genes important for the oil-degrading ability, you could attempt the

99. ## math

Adnan asked 20 friends to tell him their favorite season of the year. Autumn was the favorite season of the year for 30% of Adnan’s friends. How many of his friends chose autumn?

100. ## Life orientation

Identified 8 ways in which the environmental /human factor impacts on the community .

101. ## biology

To produce human protein X in bacterial cells, the plasmid (vector) that is chosen should have a _______________ promoter, and the source DNA should be ___________________. Which of the following best completes the sentence above? strong, wild type genomic

102. ## Life orientation

Identified 8 ways in which the environmental /human factor impacts on the community .

103. ## math

55,89,144____,____,____ find the next 3 mbers

104. ## chem II

starting with 15.0 ml of 0.370M of organic base pyridine C5H5N a titration is carried out using 0.100M HCL. how do i find the pH before titration, after adding 22.0mL of the acid , at equivalent point and after 41.0mL is of acid is added? where do i begin?

105. ## Math (Algebra)

How many distinct geometric progressions are there, such that the first term is 1, the last term is 1024 and every term is an integer?

2/3 * 1 1/2

107. ## Lang. Arts

Which pronoun correctly completes the sentence? I am not sure who is following us, but it might be ___? A.him B.she C.their I know "him" sounds correct...but I just needed to be sure...??

108. ## Math (Algebra)

If x+y+z=16 and xy+yz+zx=85, what is x^2+y^2+z^2?

109. ## math

(Math+lice)+ (equations+R+P- Square)= Decimal_______ I don't have a clue How to do this

110. ## Algebra 1

I have to get this last problem done it's for my project here's the problem: solve by completing the square method x 2- 12x =-11

111. ## Math (Algebra)

You are planning to lay square tiles on an entire 21125cm by 54925cm rectangular floor without any overlapping. If all the square tiles must be of the same size, what is the least possible number you can lay?

112. ## Math (Algebra)

How many distinct rational numbers can be expressed in the form a/b, where a and b are integers such that 1 ≤ a < b ≤ 10?

113. ## English

Some readers argue that the adults in this play-- Friar Lawrence and Juliet's nurce--- do an incredibly BAD job of mentoring and providing guidance to romeo and juliet; in fact, some people believe that without these meddling adults, Romeo and Juliet would

114. ## Math (Algebra)

You are trying to distribute 566 ice creams and 183 cookies evenly to all of the students in a class. But you end up having 5 ice creams left and 4 cookies short. What is the maximum number of students in the class?

115. ## Physics

A pair of fuzzy dice are hanging by a string in my car from the rear-view mirror. I hit the gas pedal, and while I accelerate the fuzzy dice no longer hang straight down, but instead make an angle θ of 15 degrees with respect to the vertical. How fast am

116. ## math

Dave sent five emails every 6 minutes for 30 minutes. Lee sent 4 emails every 5 minutes for 30 minutes. Who sent more emails?

117. ## science

What is heat energy? Where does it come from, and what are its properties? Include in your discussion the following terms: molecules, conduction, convection, and radiation.

118. ## Calculus

Find the Antiderivative of 3/(3x+5) with steps

The demand function for a certain brand of CD is given by p = −0.01x2 − 0.2x + 12 where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. Determine the consumers' surplus if the market

120. ## algebra

Gail has a collection of nickels, dimes, and quarters that is worth \$7.95 altogether. If she has three more nickels than dimes, and 38 coins altogether, then how many of each kind of coin does she have?

121. ## Math

15 decreased by twice n equals 13

122. ## Calculus 1

Find the antiderivative of f(x)=5e^x-2secxtanx showing steps please

123. ## Physics (Momentum)

Please help me answer this problem.How do I answer this if I don't have the mass of the monkey and the scooter together? At a circus animal training facility, a monkey rides a miniature motorscooter at a speed of 7.0 m/s. The monkey and scooter together

124. ## Math (Algebra)

You are trying to distribute 566 ice creams and 183 cookies evenly to all of the students in a class. But you end up having 5 ice creams left and 4 cookies short. What is the maximum number of students in the class?

125. ## physics

Search: the ratio of the inlet pistol force and outlet pistol force is 2:7.calculate the diameter of the inlet pistol if the radius of pistol one is 15cm

126. ## Physics

Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you

127. ## science

the ratio of the inlet pistol force and outlet pistol force is 2:7.calculate the diameter of the inlet pistol if the radius of pistol one is 15cm

128. ## Physics

Can anyone please help me with this question? I don't understand why the speed is v m/s. A sport utility vehicle is travelling at a speed of v m/s. If its momentum has a magnitude of 32,800 kg·m/s, what is the SUV's mass? Thanks I know that I have to use

129. ## Math

N is increased by 2n,the sum is 5more than 4n

130. ## Math

How many ordered pairs of integers (x,y) are there that satisfy |x|+|y|=10?

131. ## Math

Problem Solving: Work Backward At 12 noon, Leslie recorded the temperature as 56 degree Fahrenheit. The temperature had increased by 8 degree Fahrenheit from 10 a.m. The temperature at 8 a.m. was 2 degree Fahrenheit warmer than it was at 10 a.m. What was

132. ## Math

Problem Solving Work Backward The test that Keyshawn's class took finished at 10:30 a.m. The first part of the test took 30 minutes. There was a 15 minute break. The second part of the test also took 30 minutes. At what time did the test start?

133. ## Elements of Calculus

A company is manufacturing kayaks and can sell all that it manufactures. The revenue (in dollars) is given by R=750-(X^2/30) where the production output in 1 day is x kayaks. If production is increasing at 3 kayaks per day when production is 40 kayaks per

134. ## ahmadu university zaria nigeria

Ship A is sailing due south at 25 km/hr. At the same time, a second ship B, 50km miles south of A, is sailing due east at 20 km/hr. (a) at what rate are they approaching or separating at the end of one hour? (b) At what rate are they approaching or

135. ## Math (Algebra)

Given a positive integer n, let S(n) denote the digit sum of n. Consider the sequence of numbers given by n₁ = S(n) nk = S(nk−1)k≥2 For how many positive integers n ≤ 2013 does the sequence {nk} contain the number 9?

136. ## ahmadu university zaria nigeria

A particles start from rest and acceleration passing 2 point (A and B)which are 100cm apart in 15seconds if the velocity of the particle at B is three times it velocity at A,find i)the velocity of the particles at A. ii)the accelation. iii) the distance of

137. ## Physics

A 650 kg car traveling 8 m/s speeds up to 15 m/s in 25 s. Find the impulse on the car.

138. ## chemistry

The organic compound di-n-phthalate is sometimes used as a low-density manometer fluid. Compute the pressure (in torr) of a gas that supports a 517-mm columns di-n-butyl phthalate . The density of mercury is 13.53 g mL-1.

139. ## psychics

1. (a) A frictionless car of mass 1.5 tonnes travels uphill along a slope at 20º to the horizontal for 0.5 km at 20 km per hour. (i) How much work does the engine do on the car? (ii) What power does the engine supply? (b) The car the rolls back down the

140. ## Solve the inequality

Solve the inequality. Write the solution in interval notation. (x+14)/(x-8)≥ 1

141. ## Physical Science

6. In order to turn 2 iron atoms into rust, 2 water molecules must be present. -False?

142. ## life orientation

factors that contribute to the disease

143. ## chemistry

1.Does a pH of 8.6 describe a solution with a higher or lower hydronium ion concentration compared to a neutral solution? Is such as solution called acidic or basic? 2. Compared to a neutral solution, would you expect an acidic solution to have a higher or

144. ## math

The buying and selling commission schedule shown below is from a well-known online discount brokerage firm.? Taking into consideration the buying and selling commissions in the schedule find annual rate of interest earned by each investment? Transaction

How do you do square route i know a little like square route of 9 is 3 but i need more practice with square routes do you know any websites that can help.

146. ## computers

Which type of chart would best illustrate each department's sales as a percentage of the overall store sales? Answer a. area b. bar c. line d. pie

147. ## Math

Problem Solving: Work Backward Will arrived at his mother's office at 3 p.m. It took him 30 minutes to walk from his home to the mall. He was in the mall for 45 minutes. It them took him 15 minutes to walk to his mother's office. At what time did Will

148. ## Math

A road worker holds a flag in position R with an out strech arm. He swings the flag downward and it forms angle of 30degrees with the ground P. His shoe Q is 2,5 away from P. His head is 24cm above his shoulder. calculate the height of the man

Outside of circle Γ, point A is chosen. Tangents AB and AC to Γ are drawn, with B,C on the circumference of Γ. On the extension of AB, D is a point such that B is between A and D, and ∠ADC=25∘. The circumcircle of ADC intersects Γ again at E

150. ## Physics :(( help please TT

Small raindrops are actually perfectly spherical. The pressure difference between the inside and outside of a spherical raindrop of volume 4.2×10^−9 m^3 is 280 Pa. What is the surface tension in N/m of the water on the outside of the raindrop?

151. ## algebra

factor x^(n+6) +x^(n+2) + X^n and solve x^2-5x+2/3=0

152. ## math

A stadium is divided into 8 sections. Each section has 72 rows and each row contains 25 seats. How many seats are in the stadium.

153. ## Physics

A 2kg snowball moving at 22 m/s collides with a 7kg snowman's head. The snowball sticks to the snowman's head knocking it off. How much mass does the combined object have after the collision? How fast is the combined object moving at after the collision?

154. ## German

Decide if the following sentence is grammatically CORRECT or INCORRECT. Volleyball spielt man nicht in dem Stadion. correct incorrect

155. ## Physics

nearly everybody has witnessed a lunar eclipse, but relatively few people have seen a solar eclipse? why

156. ## physics

if a car has the 800 joules of potential energy while sitting on a hill that is sloped 6meters of the ground, what is the mass of the car

157. ## psychology

nrem sleep is characterized by:

158. ## health

name 5 ways which human or environmental problem impacts on the community

159. ## Math

5. Find the solution to the system of equations by using either graphing or substitution. y = 6 – x and y = x – 2 (2, 4) (–4, 2) (4, 2) no solutions 6. y = 2x – 1 and y = x + 3 (1 point)(4, 7) (7, 4) (–7, –4) infinite solutions 7. y = 4x and y

160. ## Calculus

A cylinder is inscribed in a right circular cone of height 6.5 and radius (at the base) equal to 6. What are the dimensions of such a cylinder which has maximum volume?

161. ## equation word problem

A Cold Stone Creamery ice cream shop sells sundaes for \$3.60 and banana splits for \$4.25. The shop sells four times as many sundaes as banana splits. If total sales amounted to \$3,730 last weekend, how many banana splits were sold? (Points : 2)

162. ## nutrition

5 ways in which human or environmental problem impacts on the community

Can you help me correct theses sentences with punctuation or tell me if its correct or not.... 1.)Johnny Cash was one of only a few musicians. Who have ever been inducted into both the rock and country halls of fame. 2.)Georgia O'Keefe was an American

164. ## maths

identify and describe 3 environmental health hazards that causes ill health

165. ## math

what is 3 2/5 as a decimal

166. ## Chemistry

A solution is prepared by mixing 100 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the volumes are additive, what is the pH of the resulting mixture? kb for ammonia is 1.8x10-5

167. ## math

xavier share a package of 37 pizza bites with 4 of his friends.If all the boys ate the same number of pizza bites,how many were left over?

168. ## Chemistry

A solution is prepared by mixing 100 mL of 0.500 M NH3 and 100 mL of 0.500 M HCl. Assuming that the volumes are additive, what is the pH of the resulting mixture? kb for ammonia is 1.8x10-5

169. ## math

How do you estimate 6/11 x 12?

170. ## Math

A contractor has been asked to pave 15 miles of new road. Before he can set his price, he needs to know how much the cement will cost. If the road is 45 feet wide and 9 inches thick and the cost of cement is \$35 per cubic yard, what will be the cost of the

171. ## math

if the volume of a room is 864 and the length and width are the same, what is the height?

172. ## chemistry

Consider the gold-platinum system which has a value of delta w of -4250 J/mole; (a) Calculate the enthalpy of mixing for a solution of 10% platinum and 90% gold. Express your answer in units of kJ/mole.

173. ## Education

A good reason to include the study of religions in school is that A) schools are responsible for moral training. B) all children have religious needs. C) religious references and allusions permeate our lives. D) churches expect schools to do it. I believe

174. ## quantitative techniques

a countrywide estate agency specializes i selling commercial ventures. their records show that the mean selling time is less than 90 days. because of recent economic conditions, they believe that the mean selling time is now greater than 90 days. a

175. ## Math

If about 3000 of every recall model of a vehicle actually need rework, what is the probability that your (recalled) car will not need a rework if there are 120000 cars of that model sold, and if 1000 of them are already off the road (this is a monkey

176. ## math

If twenty percent of the students play in the band and the band has forty members, how many students are there? Please help me

A contractor has been asked to pave 15 miles of new road. Before he can set his price, he needs to know how much the cement will cost. If the road is 45 feet wide and 9 inches thick and the cost of cement is \$35 per cubic yard, what will be the cost of the

178. ## chemistry

Reverse the reactions. Label the acids and bases on the left-hand side of each of the reversed equations? 1. HCl + NH3 => NH4+ + Cl- 2.NH3 + H2O => NH4+ +OH- 3. HCl +H2O => H3O+ +Cl- 4. H3PO4 +H20 => HPO4^-2 +H3O+ 5.H2PO4- +H2O => HPO4^-2 +H3O+

179. ## geometry

if ab = 8 sc = 6 ec = 12 what is value of dc? it follows the (ac)(bc) =(ec) (dc) theorem tangents secants... thank you...do you have to factor?

180. ## Science

If the current in a wire is at 0.5 A and the voltage is measured 100 volts, what is the resistance in the wire?

181. ## Life orientation

In 10-15 lines critically discuss 5 ways in which poverty as the human or environmental proble impacts on the community

182. ## geometry

Jorge put colored cards into a bag. Two of the cards were green, three were red, one was orange, two were blue, and two were purple. Jorge wants to find the probability that he will pull an orange card from the bag. What step does Jorge take to determine

183. ## math

x to the power -7/2 into 2x to the power -1/2=?

184. ## math

1/3 of what equals 1/9

185. ## Life orientation

Five ways in wich substance abuse problem impact on the communities

186. ## Life orientation

Explain 5 factors that contribute to the practice of high-risk sexual behaviour amongst the adolescence

187. ## Life orientation

Recommendations on how to address substance abuse

188. ## chemistry (buffer)

If 5.00 mL of 1.60 nitric acid is added to a solution of 2.00 mmol thiocyanic acid (HSCN pKa=4.00) and 4.500 mmol calcium thiocyanide, assume a soluble salt- what is the pOG of the resultant complex solution (of total volume .350L). I worked the problem

189. ## L.O

ways in which sti impact on the teenager

190. ## Chemistry

If you had a 200 ML container full of helium gas, and you transferred all of the gas into an empty 1.00 ml container, would the 1.00 ml container be full or only 1/4 full?

191. ## physics

A production line inspector wants a mirror that produces an image that is upright with a magnification of 7.1 when it is located 10.0 mm from a machine part. What is its radius of curvature?

192. ## German - Reiny

Fill in the blanks with the correct article. The gender of the noun is given. In Baseball, wirft der Werfer _____ Ball (masc.) _____ Fänger(masc.) zu. dem, den der, das den, dem die, dem i don't really understand this question. i think the answer is 'den,

193. ## math

What is 14 7/8 as a decimal?

194. ## english

Which of the following is not a correct option for writing out the date in question? A. 25 January 2000 B. January 25, 2000 C. 2000, January 25 D. 01/25/00 I think this one D

195. ## physics

An object is 38.0 cm from a concave mirror of 12 cm focal length. The object is 1.8 cm tall. Use the mirror equation to find the image position. How high is the image?

196. ## math

The football field is 60 yards by 100 yards.Is the length of the diagonal across this field more or less than 200 yards?

197. ## General Chemistry 103

What is the maximum number of Cs+ ions that can be produced per joule of energy absorbed by a sample of gaseous Cs atoms? Please show me how to do this so i can do it for further questions similar to this

198. ## english

what sound devices are used in the poem "how i learned english"i also need the example of the sound devices used

199. ## American History

During the 1820 and 1830 a distinct American culture began to emerge. What philosophies, artists and artists works contributed to this culture? What were the unique American themes explored within these works? Help I don't know where t begin to answer this

200. ## physics

While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 7.53 m/s. The stone subsequently falls to the ground, which is 14.7 m below the point where the stone leaves your hand. At what speed does the stone

201. ## Chemistry

A sample of calcium carbonate that has a mass of 1.0 g is heated and completely decomposed-calculate. a) the mass of carbon dioxide produced b)the volume of carbon dioxide at SLC c)the volume of carbon dioxide at STP

202. ## rivera middle school

pablo made bread and muffins. he used 3/4 cups of flower for bread and 5/8 cups of flower for muffins. how much flower did he use in all.

203. ## Math

Use Excel’s PMT function to calculate the monthly mortgage payment

204. ## Chemistry

If you had a 200 ML container full of helium gas, and you transferred all of the gas into an empty 1.00 ml container, would the 1.00 ml container be full or only 1/4 full?

205. ## Algebra 1

There are 15 members of the show choir. In how many ways can you arrange 4 members in the front row?

206. ## Pharmacy

You have a 10 percent solution and your wanting to treat a patient weighing 4.5 pounds and the dose is 5mg/kg/ml. What is the dose?

207. ## Life orientation

5 ways in which the huaman or environmental problem impacts on the community of xenophobia?

208. ## math

You need to hire a part-time associate to work 30 hours a week in your store. You have \$250 in labor budget for the new associate each week. You just interviewed an excellent candidate for the position who has requested to be paid \$9.00 per hour. Your

209. ## life orientation

5 ways in wich the human or environmental problem impact community?

210. ## unit rates

What does 9 pencils for 14 dollars equal

211. ## life orientation

Identify and describe 3 environmental health hazards that cause ill health,crises,and disasters

212. ## Chemistry

Solve for A and B 0.433= (45.6*A) + (3.152*B) 0.3363= (11.92*A) + (37.675*B)

213. ## life orentation

Identify 3 enviromental problems that have a influence on the community in south africa

214. ## Math

What is \$4.80 rounded to the nearest cent?

215. ## math

What are the coordinates of the center of the circle and the length of the radius with the equation (x+3)^2+(y-2)^2=16? Show your work.

216. ## Matrices (math)

0.433= (45.6*A) + (3.152*B) 0.3363= (11.92*A) + (37.675*B) Solve for A and B using matrices

217. ## Language

This barnyard thief is the son of a flautist