1. Chemistry

Write a net ionic equation to show that quinoline, C9H7N, behaves as a Bronsted-Lowry base in water.

2. chemistry

Write the equation for the decomposition of water into its elements. Phase symbols are not graded.

3. Science +2

Concentrated sulphuric acid has a density of 1.9 g/ml and is 99% H2SO4 by weight. calculate the molarity of H2SO4 in this acid.

4. Math

How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet? (1 point) 6,840 3,420 1,140 2,280 15. You and 3 friends go to a concert. In how many different ways can you sit in the assigned seats? (1 point) a.6 ways b.12

5. math

One day at 3:00 a.m., the temperature was -13 degrees f in Kodiak, Alaska. At 10:00 a.m., the temperature was 22 degrees f. What was the average change in temperature per hour?

6. math

A mountain climber on Mt. Everest is at 29,035 feet above sea level. A stone at the bottom of the Dead Sea is at 1,349 ft below sea level. What pigsis the difference in elevation between the mountain climber and the stone?

7. math

An elevator on the tenth floor goes down nine floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end up on?

8. Geometry math

Ok if I have a rectangle MNOP ~ rectangle STUV. what is the length of TU with a line over TU? First rectangle is MNOP with 10 on one side and 4 on anotherside. Second rectangle is STUV. With one side marked X for unknown #. And one side says # 6. Would x =

9. math

A mountain climber on Mt. Everest is at 29,035 feet above sea level. A stone at the bottom of the Dead Sea is at 1,349 ft below sea level. What is the difference in elevation between the mountain climber and the stone

10. math

A mountain climber on Mt. Everest is at 29,035 feet above sea level. A stone at the bottom of the Dead Sea is at 1,349 ft below sea level. What is the difference in elevation between the mountain climber and the stone?

Ok if I have a rectangle MNOP ~ rectangle STUV. what is the length of TU with a line over TU? First rectangle is MNOP with 10 on one side and 4 on anotherside. Second rectangle is STUV. With one side marked X for unknown #. And one side says # 6. Would x =

12. chemistry

Write the balanced chemical equation for the Habor-Bosch process, that is, the combination of nitrogen and hydrogen to form ammonia, NH3. Phase symbols are optional.

13. physics

A 1100 kg car coasts on a horizontal road with a speed of 19 m/s. After crossing a an unpaved, sandy stretch of road 32 m long, its speed decreases to 12 m/s. (a) Was the net force done on the car positive, negative, or zero? Explain (b) Find the magnitude

4. The data in the table are linear. Use the table to find the slope. TABLE: x: 2 4 6 8 y: 1 -2 -5 -8 3/2 -3/2 -2/3 2/3 7. Find the slope of a line that is parallel to the line containing the points (3, 4) and (2, 6). (1 point) m = 1 m = 2 m = –2 m = 1/2

15. math

Scott and Jen are looking at a house listed for 189000 dollars. They will qualify for a 6% interest rate if they have a 20% down payment. How much will the monthly payments be on a 15-year mortgage.I just don't understand what to do with the 20% down

16. Trig

A 12 foot ladder leans against a building. The top of the ladder leans against the wall 10.5 feet from the ground. What is the angle formed by the ground and the ladder? Assume its a right triangle.

17. chemistry

Consider two cells, the first with Al and Ag electrodes, and the second with Zn and Ni electrodes, each in appropriate 1.00 M solutions of their ions. a) If connected as voltaic cells in series, which two metals are plated, and what is the total potential?

18. consumer math

Your parents are buying a house for \$180,000. They have a good credit rating, are making a 20% down payment, and expect to pay \$1,500/month. The interest rate for the motrgage is 4%. What must their realized income be before each month and how much

19. Chemistry

What mass of precipitate will form if 1.50L of concentrated Pb(ClO3)2 is mixed with 0.200L of 0.280M of NaI? Assume the reaction is complete

20. Math

Solve. There are 18 boys in a class. There are w fewer boys than girls. How many students are there in the class?

21. Math- steve or ms. sue

does the data in the table represent a direct variation or an inverse variation? x 2 4 8 12 y 4 2 1 2/3 Choices: inverse variation; xy = 8 direct variation; y = 8x inverse variation;y/x = 8 *direct variation; y = 8/x Thank You.

22. Statistics

Exam Grades. A statistics professor is used to having a variance in his class grades of no more than 100. He feels that his current group of students is different, and so he examines a random sample of midterm grades (listed below.) At á = 0.05, can it be

23. percentage

paul made 11 out of 12 shots he took at hockey practice yesterday. What percent of his shots did he made

24. chem

In acidic solution copper(I) ion is oxidized to copper(II) ion by nitrate ion. I got Cu^+(aq) + NO_3^-(aq) --> Cu^2+(aq) + NO_3^2-(aq)but itswrong

25. Physics

A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +3.0. What is the magnification when the convex side is used as a mirror, the object remaining the same distance from the mirror?

You complain that the hot tub in your hotel suite is not enough. The hotel tells they will increase the temperature by 10% each hour. If the current temperature of the hot tub is 75 degrees Fahrenheit, what will be the temperature of the hot tub after

27. consumer math

Your parents are buying a house for \$180,000. They have a good credit rating, are making a 20% down payment, and expect to pay \$1,500/month. The interest rate for the motrgage is 4%. What must their realized income be before each month and how much

29. STATISTICS

the percentage rates of home ownership for 8 randomdomly selected states are listed below. Estimate the population variance and standard deviation for the percentage rate of home ownership with 99% confidence. 66.0 75.8 70.9 73.9 63.4 68.5 73.3 65.9

30. chemistry

A current of 3.04 A is passed through a Cr(NO3)2 solution for 1.80 hours. How much chromium is plated out of the solution?

31. Algebra

Find an exponential function of the form f(x) = ba^x that has the given y-intercept and passes through the point P. y-intercept 4; P(2, 1)

32. statistics

A researcher wants to compare the variances of the heights (in inches) of 4 year college basketball players with those of players in junior colleges. A sample of 30 players from each type of school is selected, and the variances of the heights for each

33. science

Pt | Cr3+ (2.7010-4 M), Cr2+ (0.500 M) || Pb2+ (0.0710 M) | Pb Consider the following electochemical cell. Calculate the voltage of the cell, Ecell, including the sign.

34. physics

A clock has a copper pendulum with a period of 1.000 s at 17.3°C. Suppose the clock is moved to a location where the average temperature is 33.9°C. Determine the new period of the clock's pendulum.

35. Physics

If a marble of mass 4.0 kg and radius 0.2 m is rolling up an incline at 10 m/s and the incline is h meters high, what minimum height must that incline be in order for the marble to stop while on the incline?

36. Chemistry

Calculate the standard potential, E^o, for this reaction from its equilibrium constant at 298K. X(s)+Y^2+(aq)= X^2+(aq)+Y(s) K=8.68E6 E^o=??V

37. geometry

find the measure of the smallest angle , angle hfg , if angle ghf=92 degrees and angle hgf = 72 degrees

38. chemistry help!!

nsider the following electochemical cell. Pt | Cr3+ (2.7010-4 M), Cr2+ (0.500 M) || Pb2+ (0.0710 M) | Pb Calculate the voltage of the cell, Ecell, including the sign.

39. physics

The water passing over Victoria Falls, located along the Zambezi River on the border of Zimbabwe and Zambia, drops about 109 m. How much internal energy is produced per kg as a result of the fall? kj/kg

40. finance

Mrs. Kay who is 24 years old plans to retire at the age of 60. Mrs. Kay would like to be able to withdraw \$120,000 per year from her retirement account for 40 years after retirement beginning a year after her retirement. She already has \$15,000 in her

41. Physics

Identical objects are located at the same distance from two spherical mirrors, A and B. The magnifications produced by the mirrors are mA = 7.2 and mB = 1.1. Find the ratio fA/fB of the focal lengths of the mirrors.

42. criminal justice

Do you feel that juvenile delinquency can effectively be curbed by the threat of corporal punishment? Why or why not?

43. spanish

_______ pantalones son bonitos y el precio no es muy alto.

44. life orintation

suggest 6 recommendation on how to address the environmental problem that you have identified in the previous question

45. Math

Jill said that an angle is made of two rays. Is she correct? Explain

46. Chemistry

An aqueous solution of NaCl freezes at -1.6ºC. At what temperature will it boil? Given that K(b) for water is 0.52 deg m^-1.

47. Math

Every time Jim shoots a free throw in basketball, he has an 80% chance of making the shot. He is given 3 free throws. Find the probability of each event. a) misses all 3 shots b) misses the first two shots and makes the third. Can someone please explain to

48. physics

An 11-mm wide diffraction grating has rulings of 550 lines per mm. Light is incident normally on the grating. The longest wavelength that forms an intensity maximum in the fifth order is closest to? The correct answer is 488nm but I cant seem to get that

49. Chemistry

Calculate the pH of a 50.0 mL solution 0.0120 M ethylaminium chloride (C2H5NH3Cl ) and 0.0360 M ethylamine C2H5NH2. Kb = 4.3 x 10-4 Calculate the pH when 5.0 mL of 0.1 M HI is added. Ignore any changes in the volume

50. college algebra

Write expression as one logarithm and simplify if appropriate. log 3√x + log x^4 - log x^3 4 log (x+3) - 5 log (x^2+4) + 1/3 log y I have these who problems but I don't know where to start. HELP Please.

51. chemistry

What is the specific heat of an unknown substance if a 2.53 g sample releases 13.1 cal as its temperature changes from 25.5°C to 21.3°C?

52. science

calculate how many grams of chloride ions are present in 50 grams of ocean salts

53. Statistics

A high school counselor is interested in the percentage of students who will be going to college. She randomly picks 60 students and finds that 53 will be going to college. Use a 95% confidence level to find the population proportion. a) State the 95%

54. Chemistry

Suppose we have a solution of lead nitrate, Pb(NO3). A solution of NaCl(aq) is added slowly until no further precipitation occurs. The precipitate is collected by filtration, dried and weighed. A total of 10.27g of PbCl2(s) is obtained from 200.0mL of the

55. chemistry

What NaCl concentration results when 279 mL of a 0.640 M NaCl solution is mixed with 427 mL of a 0.490 M NaCl solution?

56. Algebra

Please Help! How much money, invested at an interest rate of r% per year compounded continuously, will amount to A dollars after t years? A = 15,500, r = 5.4, t = 5

57. physics

An 11-mm wide diffraction grating has rulings of 550 lines per mm. Light is incident normally on the grating. The longest wavelength that forms an intensity maximum in the fifth order is closest to? The correct answer is 488nm but I cant seem to get that

58. Math :/

A light flashes every 15 minutes. a second light flashes every 18 minutes. both lights flash together are 2 a.m. What will the time be when they net flash together?

59. Math

Each time Parker shoots a free throw in basketball, he has an 80% chance of making the shot. Suppose he is given 3 free throws. Find the probability of each event. a) Makes the basket, misses the basket, makes the baset b) makes all 3 shots Please help

60. Math

Mack needs to buy fencing to surround his circular garden. If his garden is 30 feet across and fencing cost \$4.50 per foot, how much will it cost to fence in Mark's garden? If the radius if of a circle is 4 feet, what is its circumference ? Ben ran 10

61. LIFE ORIENTATION

3 Environmental health hazards that cause ill health crises

62. Chemistry

2 moles of helium (He) are pumped from a gas canister into a weather balloon. The balloon at this point has a volume V1. 1 mole of nitrogen gas (N2) is added at the same temperature and pressure. The volume of the balloon changes to V2. How will the new

63. math

if it took jeff 14 minutes to drive 10 1/2 mile how long will it take him to travel 23 miles?

64. English

I don't understand this quote from Romeo & Juliet: "Ah me! How sweet is love itself possessed, When but love's shadows are so rich in joy" (5.1.10-11). Could someone please interpret it? Thanks!

Sage has a hot dog stand. Last week he spent \$13 for hot dogs and supplies. He earned \$25. What was his profit?

66. Math

There are 12 peaches in a carton. The mean mass is 175 grams. What is the total mass?

67. chemistry

according to the American insurance companies, a driver will travel 12,000 miles in a single year. gasoline may be taken as primarily c8h18. the drives vehicle gets 25.0 miles per gallon. the density of octane is 0.703 g/ml. how much gasoline in gallons is

68. chem com

3PbO + 2NH3 ---> 3Pb + N2 + 3H2O Based on the above balanced equation, If given 12.6 moles of NH3, how many moles of lead (Pb) will be produced

69. Algebra 2....

1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39 degrees 2. What angle in

70. PHYSICS

The only force acting on a particle is conservative force F. If the particle is at point A, the potential energy of the system associated with F and the particle is 39 J. If the particle moves from point A to point B, the work done on the particle by F is

71. Physics

A singly charged positive ion has a mass of 2.74 10-26 kg. After being accelerated through a potential difference of 268 V, the ion enters a magnetic field of 0.450 T, in a direction perpendicular to the field. Calculate the radius of the ion's path in the

72. physics

A 0.49 cm high object is placed 8.5 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image?

73. poetry

What sound devices are used in the poem "How I Learned English" I also need the examples of the sound devices used.

74. chemistry

59.0 mL of a 1.40 M solution is diluted to a total volume of 278 mL. A 139-mL portion of that solution is diluted by adding 129 mL of water. What is the final concentration? Assume the volumes are additive.

75. math

A rectangular box with a volume of 320 cubic units is to be constructed with a square base and top. The cost per square foot of the bottom is 15 cents, for the top 10 cents, and for the sides is 2.5 cents. Find the dimensions that minimize the cost of

76. finance

. Fargo Industries has outstanding 30 year bonds at 7% semiannual payments. The bond sells at 90% of its face value. If their tax rate is 22%: a.What is the aftertax cost of debt? b. What is the pretax cost of debt? c. Which is more important in

77. PHYSICS

A 2kg block is on a level table and held against a spring with k =150N/m which has been compressed 15 cm. he block is released from rest and pushed across the table. When the block leaves the spring it beins to experience fricion with coeficient of 0.25.

78. Chem

If you begin with 10. liters of 0.15 M NaCl, what mass of NaOH can be formed? 2 NaCl(aq) + 2 H2O(liq) ¨ H2(g) + Cl2(g) + 2 NaOH(aq)

79. life orientation

What are human and social factors that cause ill-health, sickness, trauma, accidents, crises and disasters

80. Chemistry

Estimate the equilibrium constant for the weak acid HCN, if a 4.68×10-3 M aqueous solution of HCN has a [H+] 0.00000151 M (make an exact calculation assuming that initial concentration is not equal to the equilibrium concentration). HCN = CN- + H+

81. chemistry

You have 67.0 mL of a 0.400 M stock solution that must be diluted to 0.100 M. Assuming the volumes are additive, how much water should you add?

82. Chem

At 298 K, Pb(IO3)2(s) ↔ Pb2+(aq) + 2IO3-(aq) Ksp = 2.6x 10-13 Pb2+(aq) + 2e- → Pb(s) Eo = (-0.126) V. Find the standard potential of the half-reaction: Pb(IO3)2(s) + 2e- ↔ Pb(s) + 2IO3-(aq) Eo = ? I'm really confused. Please help.

83. Math

Jessica wants to seed her backyard with grass seed. Her yard is 120 fet long and 90 feet wide. If Jessica buys bags of seeds that cover 600 square feet, how many bags of seed will she need?

84. calculus (gr 12)

The forward motion of a space shuttle, t seconds after touchdown, is described by s(t) = 189t − t^3 , where " is measured in metres. a) What is the velocity of the shuttle at touchdown? b) How much time is required for the shuttle to stop completely? c)

85. math

How many times greater is the 5 in the thousand place than the 5 in tens place?

86. algebra 1

expand: 1) (x-4)^2 2) (2x-1)^2

87. PHYSICS

A golf ball (m=0.46g is struck by a club on a 50 deg. angle over 7ms. If the bll lands 200 m away, what is the force delivered to it by the club

88. Global History

How did geography both help and hinder the peoples of Africa?

89. algebra 1 help

find all values of k so that each polynomial can be factored using integers 1) x^2+kx-19 2) x^2-8x+k, k>0

90. examples on how to writ a cover letter requesting

I looked on the internet but nothing really applies to my situation. Im trying to write a cover letter to request some funding help from a federation They are willing to help I just need a good cover letter. need hep in how a cover letter should look and

91. Literature ?! Check my answers?

1. Which poem compares an athlete's drive to compete to a wild animal? A: "The Women's 400 Meters" B: *"To James" C: "Slam, Dunk, & Hook" 2 The word antagonize, often used in sports, means "to provoke hostility." The word contains the root anti-, meaning

92. social studies

how did the great wall of china help the chinese people?

93. Physics(science)

A ball's projected at an angle X to the horizontal from a cliff 96 metres high and strikes the ground at a distance of 260 metres away from the cliff.The time of its flight is 7 seconds.If it's assumed that air resistance's negligible,calculate: 1.the

94. math

Suppose a diver started at 82 feet below the surface and rose in five steps of 15 feet each. Use an integer to describe his new position in relation to the surface water.

95. Chem

What is the molarity (M) of an HCl solution, 150 ml of which when treated with excess magnesium liberates 3.5 l of H2 gas measured at STP? I know molarity is Moles, volume, but how does magnesium come into play?

96. physics

A clock has a copper pendulum with a period of 1.000 s at 17.3°C. Suppose the clock is moved to a location where the average temperature is 33.9°C.How much time will the clock lose (positive result) or gain (negative result) in 4 days?

97. Chemistry

By titration it is found that 76.3Ml of 0.178M of NaOH(aq) is needed to neutralize 25.00mL of HCL(aq). Calculate the concentration of the HCl solution.

98. math

160 blocks , each block is 2 cm wide, 1 cm long & 4 cm high, what will be size of box that will hold all 160 blocks (each side cannot be less than 6 cm)

99. Math

What are the measurements of a box that will hold 160 blocks that are 2 centimeters wide, 1 centimeter high, and 4 centimeters long?

100. PHYSICS

A small block of mass 0.5 kg is released from rest at the top of a ramp of mass 3 kg that sits on a frictionless horizonal surface. When the block leaves the ramp it has a speed of 4 m.s a)what is the recoil velocity of the ramp b) how high is the ramp?

101. math

The point (x,y) lies on both conics x2+xy+x=81 and y2+xy+y=51. Given that x+y is positive, determine the value of x+y.

102. Grammar

Write "Incorrect" if "good" or "well" is used incorrectly. Write "Correct" if "good" or "well" is used correctly. 1). I'll do good in college. 2). Being conscientious will help me succeed good in life. 3). I'll be a good influence on others too. 4). I have

103. HEALTH

The key to using a pedometer to meet the Physical Activity Guidelines for Americans is to _________. A. First set a time goal and then calculate how rigorous the steps need to be each day to reach your goal B. First calculate how many steps are needed

104. Algebra

It takes 10 hours to fill a pool with water, and 20 hours to drain it. If the pool is empty and the drain is open, how long will it take to fill the pool?

105. chemistry

A 1.147 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 1.690 grams of KI and 50.00 mL of a 0.00821 M KIO3 solution. The excess I3– was

106. public speaking

Which of the following is NOT true about persuasive speaking compared to informative speaking?

107. math

mary has outstanding preferred stock That pays a dividend of \$4 per share and sells for \$82 per share, with a floatation cost of \$6 per share. What is the component cost for Coogly's preferred stock? What are the advantages and disadvantages of using

108. chemistry

what mass of baking soda would completely react with 3.8 g acetic acid

109. math

Flying to Seoul with a tailwind a plane averaged 343 mph. On the return trip the plane only averaged 307 mph while flying back into the same wind. Find the speed of the plane in still air and the speed of the wind.

110. Chemistry

You have 4.271 x 102 mL of oxygen gas (O2) at 7.656 x 102 mm of Hg and 78 oC. What is the mass of the sample in milligrams? When alcohol evaporates according to the equationC2H5OH(l) --> C2H5OH(g), how many liters of gaseous alcohol, measured at STP, are

111. Math

How could knowing that 35 divided by7 equal 5 help you find 42 divided by 7? Explain

112. U.S/history AP

----------Andrew Johnonson's Secretary of State bought Alaska from Russia in 1867 for \$7.2 million dollars.This deal was called"____ Icebox" or "_____Folly." my answer WILLIAM SEAWARD

113. Organic Chemistry

Please correct me if I'm wrong... I'm attempting to find the theoretical yeild of performing a Hydroboration-Oxidation of 1-Octene, to form Octanol. ----- Reactants: 1-Octene: 210 microliters, 1.34 mmol, 112.22g molecular weight. Borane•THF (1M): 500

114. Finance

Andy's total assets are \$2,500,000, net profit margin is 5% of sales, dividend payout ratio of 60%, and the ratio of its spontaneous liabilities to sale is 20%. If sales rise from their present level of \$5 million by%1,000,000 next year, what will be the

115. math

Judy has 126 pencil boxes stacked in piles of equal size. what are all the possible pile sizes? Explain how you found your answer.

116. Dressmaking and Design

I need to see if my answers are correct on a couple of questions. 1. It's especially important to avoid stitching across the seam allowances when sewing a a. patch pocket with straight edges b. corner that has a seam c. point that has no seam d.

117. math

name the lengths of the sides os three rectangles with the perimeters of 12 units. Use only hole numbers

118. algebra 1

3) for any factorable trinomial x^2+bx+c, will the absolute value of b sometimes,always, or never be less than the absolute value of c? explain idk 4) give an example of a trinomial that can be factored using the factoring techniques presented. then factor

119. Physics

A 20 mH inductor in series with a resistance of 55 ohms is connected to a source whose voltage is = 310 V cos 150πt, where t is in seconds. (a) Determine the maximum current in the circuit. (I solved this already, I=5.63A) (b) Determine the maximum and

120. Math

How can you use a right angle to determine the classification of another angle?

121. Math

John cut an apple pie into 6 equal slices. His friends ate some of the pie and now 3/5 is left. John wants to put each slice of the leftover pie on its own plate. What part of the pie will he put on each plate?

122. physics

A magnifying glass uses a converging lens with a focal length of 14.5 cm. It produces a virtual and upright image that is 3.3 times larger than the object. How far is the object from the lens?

123. Math

A spool contains 9 meters of ribbon. How many 0.225-meter pieces of ribbon can be cut from the spool?

124. English

1.Each member of the basketball team was awarded a trophy to (transform commemorate) the championship season. commemorate 2.Ms.Wilentz is the kind of manager who does not try to (extort exalt) cooperation from the people under her, but earns it by being a

125. life orientation

Describe 3 environmental health hazards that cause ill health,crises and disasters in our communities

I have an assignment for a Business Introduction course.. Out of the 25 questions there is only one i don't really understand.. If anyone can help i will be more than grateful. Q. Regarding differences between consumer-focused marketing and B2B marketing,

127. English

6.Isn't it a little (far-fetched selfseeking) to suggest that the pollution of our environment is mainly caused by creatures from outer space? far fetched 7.Unless the poor people of the country see some hope of improving their lives there will probably

128. Pre-calc/Calc

Which expression is equivalent to sin(3x) + sin x? A. 2cos(2x)sin x B. 2sin(2x)sin x C. -2sin(2x)cos x D. 2sin(2x)cos x E. -2cos(2x)sin x

asked by Chris Math Hw Help
129. Chemistry

Describe how you would prepare 800ml of .9 M Na3PO4 from solid Na3PO4 and water.

130. English Composition

I know that mood and tone are different, but is mood considered an element of literature?

131. Physics

The density of a certain oil on frying becomes 0.4 kg with a volume of 20 m. What will be its initial volume when its initial density is 0.8 kgm assuming no loss of oil due to spillage?

132. Physics

The density of a certain oil on frying becomes 0.4 kg with a volume of 20 m. What will be its initial volume when its initial density is 0.8 kgm assuming no loss of oil due to spillage?

133. chem com

How many moles is 158.5 grams of CaCl2

134. Chemistry

A canister holds a gas at 16.3 psi when the temperature is 15˚C. To what will the pressure change when the temperature is increased to 20˚C? *

135. Find the rate of change

Taxes: Along with incomes, peoples charitable contributions have steadily increased over the past few years. The table shows the average deduction for charitable contributions reported on individual income tax returns for the period 2007 to 2012. Find the

136. Spanish

Is there anyone online that can translate english to spanish for me? Thank you

137. Electronics

You are given a bandwidth constraint in the form Fmin=250 MHz, Fmax=500 MHz. To meet the bandwidth constraint, the signal is upsampled by a factor K=4 and interpolated at Fs=1 GHz before going to the analog domain. Question: Determine the Baud rate (in

138. Socials 1 question

I am making a brochure about the Inuit. It is suppossed to be brought back from a time machine from when the Inuit lived a long time ago. I need a catchy phrase that has something to do with the inuit and the time machine and MOST IMPORTANTLY I also need

139. english

what are some nongovernmential organization

140. Religious

How was medieval anti-Semitism different from the anti-Semitism in late 19th century Germany?

141. MATH

2 perpendicular sides of a triangle differ by 7 cm. the hypotenuse is 9 cm longer than the short side. what are the lengths of each of the sides

142. chemistry

C2H5OH+O2-CH3COOH+H2O HOW MANY MOLES OF ETHANOL IN 5g

143. Trig

solve over the indicated interval expressed in degrees to 2 decimal places. sec(theta/2)=1.4275, 0

144. chemistry

what is the effect of barium chloride solution, dilute hydrochloric acid and dilute trioxonitrate(v) acid on iron II ammonium sulphate hexahydrate

Determine the net ATP production? from one molecule of acetyl CoA through the citric acid cycle and taking the products through oxidative phosphorylation?

146. Math

A family put a swimming pool in their backyard the rectangular backyard measures 20 by 12. The area of the pool is 1/6 the size of the area of the backyard. what is the area of the pool? How do I solve this one I multiplied 20 and 12 and got 240. What do I

147. science

Although the salinity of ocean water varies from place to place, the relative amounts of the different salts do not vary significantly. Briefly explain why this is so?

148. life orientation

identify and describe 3 environmental health hazards that cause ill health,accidents,crises,and disaster

149. Geometry

I appreciate any help you can give me. Here is my question: Find the coordinates of the images of A(2,3), and B(-2,3) under the following transformations. Assume that all size transformations are centered at the origin. a. A size transformation with scale

150. Math

Marian drew a picture of two circles.She wanted to shade only the outer circle. WHich of the following is closest to the area of the shaded region? The shaded region of the outer circle's radius is 5 and the inside circl'es radius is 3 A.75 B.48 C.165

151. history

Between 1947 and 1951, what did the loyalty boards that were established to root out subversives in government service do? a. They uncovered evidence of massive subversion and espionage within the Departments of State and Defense. b. They restricted their

152. Help meee

Answer from spreadsheet Answer from hand calculation Problem #1: Find the total amount if you deposit \$500 at a rate of 5% for two years using simple interest. Year 1 Year 2 Problem #2: Find the total amount if you deposit \$300 at a rate of 6% for three

153. maths

A fair die is rolled three times. Find the chance that three different faces appear.

154. Chemistry

How much heat needs to be released if 95g sample of ethyl alcohol condenses?

155. life orientation

critically discuss 6 ways in which the environmental health hazard can impact negatively on one's health

156. life orientation

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

157. college algebra

I need to expand the expression without exponents. We haven't covered this yet so I am confused on how to do both of them Log x4y7/4 4 log x^8/√yz^5 4 Thanks, for your help.

158. Socials 1 question

I posted this before...I am doing a brochure on the Inuit. I need a catchy phrase on the cover about the Inuit, can you please help me think of one. the brochure is suppossed to be brought from a time machine, saying I went back in time. Any suggestions

159. trig

solve exactly over the indicated interval: cot(theta)=0, all real numbers

160. Physics (Algebra-based)

A barefoot field-goal kicker imparts a speed of 35 m/s to a football initially at rest. If the football has a mass of 0.39 kg and the time of contact with the ball is 0.038 s, what is the force exerted by the ball on the kicker’s foot? I tried the

161. Calculus

Light is absorbed when it passes through a glass window. If r% of light is absorbed by a glass with thickness w , then the percent of light that is absorbed by a piece of glass with a thickness nw of for any natural number n is modeled by the following

162. Pre-Calc/Calc

Which set of parametric equations corresponds to this rectangular equation? y=2x-(x^2 / 10) A. x=4t, y=4t-(t^2 /10) B. x=2t, y=8t-(4t^2/10) C. x=2t, y=4t-(4t^2/10) D. x=.5t, y=2t-(t^2/10) E. x=t, y=t-(t^2/10)

asked by Chris Math Hw Help
163. life orientation

in 15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community in substance abuse

164. calculus

Evaluate each of the following. Show all your calculations.  f" (1/3) if f(x) = −2x^5 + 2x − 6

165. calculus (gr 12)

Determine the velocity and acceleration as functions of time, t, for s(t) = 45t − 5t^2, where s(t) represents the distance as a function of time. (Hint: velocity and acceleration correspond to the first and second derivatives of the distance)

166. calculus (gr 12)

State the absolute maximum value and the absolute minimum value of each function, if the function is defined on the interval shown. {I CANNOT POST THE GRAPH SO CAN SOMEONE EMAll ME AT miss.a.parker at hot mail(. com) SO I CAN EMAIL IT TO THEM SO YOU CAN

167. English

11.Financiers are planning to (accommodate amalgamate) various businesses in the US and England into one huge multinational corporation amalgamate 12.The US has a long history of providing (upheaval sanctuary) to those fleeing persecution abroad sanctuary

168. CHEM

An isotope has a half life of 56 days. It now has 10,000DPM/ml. What will its activity be 100 days from now?

169. Algebra

I have four problems I'm having trouble with. I need to solve the equations by completing the square. 1) w^2 - 5w = 11/4 2) z^2 + 11z = -21/4 3) k^2 - 8k - 7 = 0 4) v^2 - 7v + 1 = 0

170. Calculus

An animal population is increasing at a rate of 150+20t animals per year. By how much does the animal population increase between year 5 and year 8?

171. Chemistry

10.7 L of a gas at 1.75 atm are expanded to 20.0 L at a constant temperature. What is the new gas pressure? *

172. Calculus

Light is absorbed when it passes through a glass window. If r% of light is absorbed by a glass with thickness w , then the percent of light that is absorbed by a piece of glass with a thickness nw of for any natural number n is modeled by the following

173. To Ms Sue

from previous question:: k i guess that's ok but i was thinking more of a joke from time machine and inuit, have any of those ? thanks

174. Electronics

The channel's power constraint imposes the maximum SNR of 30 dB. Q)If the channel's bandwidth is 3 kHz, find out the maximum throughput R (in bits/s) that can be achieved by QAM signalling with a square constellation (like the ones you saw in the lecture)

175. Math.

43.The forecast predicted that Dallas County would receive eight inches of rain over the next two days. On Thursday Dallas County received 3.4 inches of rain. On Friday it rained twice with Dallas County Reciving 1.2 inches of rain each time. What was the

176. algebra 2

how to solve (x -3)^4 = 116

177. eng

what is a thesis?

178. equation

7 solve -1- - = 6 2x

179. technology

For my talent show, I need to record my song. How do we put the song on a CD?

180. U.S/history AP-

--------1870's split in the republican party;wanted a civil service system because they disagreed whith the OLD GUARD Republicans on who should control patronage jobs. Led by senator James G Blaine my answer HALF BREED

181. Finance

anderson inc has 5,000,0000 debt at 10% per year, sale of 10,000,000, a tax rate of 40% and a net profit margin of 6%, what is anderson's times interest earned ratio?

182. geometry

Is this syllogism? 1. In-line skaters live dangerously. 2.if you live dangerously, then you like to dance. 3, If you are an in-line skater, then you like to dance.

183. language arts Ms. Sue please

Monitoring comprehension by rereading can be especially useful in understanding the meaning of difficult words. (1 point) true false Is the answer "true"?

184. Life oriention

Identify and describe 3 environmental health hazards that cause ill health,crises,and or disaster within your community

185. Math

Meagan bought a 3 liter soda and a bag of cups to a party. Each cup holds a volume of 250ml How many cups will be needed for soda 12 Ms.Baggett took a total of 3 hours to grade 120 papers Which of the following can be used to find m the number of minutes

186. Math

Which of the following is closest to the area in inches of the yield sign? 1cm=3in Each side is 4 cm A.12 B.54 C.6 D.108 C

187. Math

How do I find the radius if the circle is 6inches how do I solve

188. Health

how can disabled wheelchair people play sports? how do they?

189. tri

solve exactly over the indicated interval: 2cos^2(theta)=cos(theta), 0

191. math

Girls who played video games and got into fights = 36 Girls who played video games and did NOT get into fights = 55 Girls who Never played video games and got into fights = 578. Girls who Never played video games and did NOT get into fights = 1436 Is there

192. Math

y+3x=-10 -2y-3x=8

193. Kos

simplify. 5 _____ -5 - 3√3

194. Physics

A 20 mH inductor in series with a resistance of 55 ohms is connected to a source whose voltage is = 310 V cos 150πt, where t is in seconds. (a) Determine the maximum current in the circuit. (I solved this already, I=5.63A) (b) Determine the maximum and

195. Life orientation

Provide five ways in which you critically discuss how cancer life style /behavior deseases impact on teenagers?

196. Physics

A 20 mH inductor in series with a resistance of 55 ohms is connected to a source whose voltage is = 310 V cos 150πt, where t is in seconds. (a) Determine the maximum current in the circuit. (I solved this already, I=5.63A) (b) Determine the maximum and

197. Maths

There is a one in three chance that if Yasmin misses the 7:00 a.m train, she will get a seat on the 8:00 a.m train. Using a single die, how would I conduct an experiment and put it into a frequency table?

198. Maths

There is a one in three chance that if Yasmin misses the 7:00 a.m train, she will get a seat on the 8:00 a.m train. Using a single die, how would I conduct an experiment and put it into a frequency table?

199. Grd 12 life orientation

Describe the life style behaviour and explain 5 factors that contribute to the substance abuse of both legal and illegal drugs among the youth

200. Statistics

A quality control audit has been devised to check on the sampling procedure when a truckload of potatoes arrive at a packing plant. A random sample of 250 is selected and examined for bruises and other defects. The whole truckload will be rejected if 5% of

202. biology/chemistry

Determine the net ATP production from one molecule of acetyl CoA through the citric acid cycle and taking the products through oxidative phosphorylation?

203. Physicsy

a ball thrown 45m high speed of 10m/s at what time reach the top?

204. Physical Science

When will an object float on a fluid's surface?

205. Calculus

A popular search engine is targeting European countries where the number of online households is expected to grow at a steady rate. Data was taken over time, and it was found that the number of online houses (in millions) projected can be modeled by the

206. trig

Find minimum value of 2cos x + 2cos y

207. trig

Find minimum value of 2cos x + 2cos y

208. trig

Find minimum value of 2cos x + 2cos y

209. Life orientation

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

210. Algebra

2 questions I need some help with please! 1. Find the partial sum S5. an= -2n+16 2.Solve the system by triangularizing the augmented matrix and using bakc substitution. 7x=y-6 3y= -5-2x

211. Math

A track of mass 1000 kg travelling on a straight level road accelerates from a speed of 10 m/s to a speed of 30 m/s in 12 seconds. Given that the engine of the track exerts a constant pull of magnitude P N and that there is a constant resistance to motion

212. English

How did the situation start?

213. life orientation

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

214. Socials 1 question

I am doing a brochure on the Inuit. I need a catchy phrase on the cover about the Inuit, can you please help me think of one. Thanks

215. Life orientations

Discuss 5 impacts due to lack of infrastructure

216. phy

How much heat is required to raise the body temperature of a 60.0-kg woman from 37.0° C to 38.2° C?

217. science

light trsavels at 3*10 m/s. an astrounaut shines a flash light in space. 4 hours later a martian sees a light from the astrounaut. how far away is mars from the astrounaut?

218. Math

What is 1/2 X 48 X 20 feet

219. calculus (gr 12)

Evaluate each of the following. Show all your calculations. f'(3) if f(x)  = x^4 − 3x

220. calculus (gr 12)

Evaluate each of the following. Show all your calculations. f' (−2) if f(x) = 2x^3 + 4x^2 − 5x + 8

221. calculus (gr 12)

Evaluate each of the following. Show all your calculations. f" (1) if f(X)  = −3x^2 − 5x + 7

222. Calculus

A popular search engine is targeting European countries where the number of online households is expected to grow at a steady rate. Data was taken over time, and it was found that the number of online houses (in millions) projected can be modeled by the

223. Math

solve the equation, and interpret the result to (4x-1)-2(x+1)=3x-(4x+2)

224. calculus (gr 12)

Evaluate each of the following. Show all your calculations. f′ (3/4)if f(x) = −3x^3 − 7x^2 + 4x − 11

225. calculus

Evaluate each of the following. Show all your calculations. f" (−3) if f(x)  = 4x^3 − 3x^2 + 2x − 6

226. algebra

identify conic section, its lines of symmetry and the domain and range

227. calculus

Evaluate each of the following. Show all your calculations.  f" (1/3) if f(x) = −2x^5 + 2x − 6

228. CALC

Determine the maximum and minimum of each function on the given interval. a)  = 2x^3 − 9x^2 ,−2 ≤ x ≤ 4 b)  = 12x − x^3 ,  x∈ [−3,5]

Determine the absolute extrema of each function on the given interval. Illustrate your results by sketching the graph of each function. a) f(x) = x^2 − 4x + 3 , 0 ≤ x ≤ 3 b) f(x) = (x − 1)^2 , 0 ≤ x ≤ 2

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230. Math algebra 1

Hi I really need help! State any restrictions on the variables. 4x-2x^2 over x-2 A. x does not equal 2 and x does not equal –2 B. x does not equal –2 C. x does not equal 2 D. no restrictions are needed

231. math

Can someone help ?

232. non linear equations

find all solutions of the system. y+x^2=-5x y-5x=25

233. Chemistry

The activity of a stock isotope is 10,000 DPM/0.10mL. If 0.25 ml of this stock is placed in 2.50 ml of water, what is the activity in the diluted specimen? My guess is that I just multiply the 10,000 DPM by the 1/10 dilution factor. I then come up with

234. Algebra

dividing radical expressions âˆš5k^4 + 3âˆš2k ______________ âˆš3k^3

235. Biology

even in multicell organisms (ex: animals) events which occur in individual cell may have profound effects on their entire organism. Prove this with detail

236. science

What are the similarities between air masses and fronts?

237. English

15.We cannot have a peaceful and just society so long as any one race is required to be (responsive submissive) to another submissive 16.I didn't have time to write a letter to Lucy, but I (appended enumerated) a few sentences to my sister's letter

238. Bob pursley

Sorry I misspelled your name in my previous post:)

239. Calculus

Use the Evaluation Theorem to find the exact value of the integral ç from 1/2 to 0 (a/ã(1−x^2)dx. The answer should involve the parameter a.

240. health

what is the dffrent between calories taken and calories used

241. Calculus

Use the Evaluation Theorem to find the exact value of the integral ç 7 1 1/5x(dx)

242. ocho rios primary school

what is the plural of the word man.

243. Algebra

I have to build a dog pen with 104 feet of material. This has to be built in a rectangle shape. A= 52x-x^2 X = width What would the width be with a maximized area? What would the area be?

244. pharmacy informatics

A patient is given a routine urine test during an employee screening for drug abuse.The employer informs the patient that the test was positive for amphetamines.The patient is not abusing drugs and has only bee taking pseudophedrine over the past week for

245. math

inequalities x-5

x-28

247. algebra

(2c+1)(3c+5) x^2-3x-10

248. Math

Samuel's height measures 52 inches.Andrea is one year older than Samuel and is 1 foot taller.When Andrea wears heels, she is an additional 3 inches taller than Samuel.Which of the following is closest to Andrea's height when she wears heels? A.4ft B.5ft

x+15

250. Math

Explain It How can you compare two fractions by using a number line?

251. Government

What powers do the legislative and executive branch share? I am doing a venn diagram and i needed help finding their similarities in power. Thanks

252. English

What comes to mind when you think of needing more time? Some examples might be studying, family, exercise, relaxation, a hobby, or building your business

253. Math

47.Myra works part time as a journal editor.She works 10 hours each week.During her work week, she edits 4 articles in 2 hours which of the following could be used to find a the number of articles that Myra edits during the week? A.a/2=4/10 B.10/4=a/2

254. Science

how to find the speed of a bullet just before it touches the ground when fired horizontally at a velocity 10 m/s from a watch tower 11.5 m high?

255. Math

pedro and maria spend the same amount of time driving to school. pedr average is 50 mph and maria's average is 30 mph. pedro drives 10 miles farther than maria, how long does each drive to school?

256. Calculus

find the area of the region described below. f(x)=-4-sq rt of x Find the area of the region bounded below by the graph of f(x) and above by the x-axis from x = 0 to x = 4. Thank you!

257. life orientation

what are way in which the human problem impact of hiv and aids in the community?

258. Calculus

find the area of the region described below. f(x)= -e^((1/2)x) Find the area of the region bounded below by the graph of f(x) and above by the x-axis from x = -4 to x = 4.

259. life orientation

identify and describe 3 environmental health hazards that cause ill health or disasters in south africa and globally

260. math

find the exact amount of interest to be for accumulated 25000 at 81/4% for 60 days?

261. chemistry

effect of Bacl2 and HNO3 of (NH4)2so4.feso4.6ho2

262. geometry

Is this detachment or syllogism?1. If I get to drive, then i will go to the fashions show? 2.Kristin got to go to the fashin show. 3.Krisitn got to drive

263. life orientation

identify and describe 3 environmental health hazards that cause ill health or disasters in south africa and globally

264. Math

How do I find the radius if the circle is 6inches how do I solve

265. math

The point (x,y) lies on both conics x2+xy+x=81 and y2+xy+y=51. Given that x+y is positive, determine the value of x+y.

266. Algebra

a cyclist and a horse rider are going the same speed. the rider stops after 11.1 miles. the cyclist goes for another hour and 18.5 miles. how fast is each one going?

267. Physics

Consider the LR circuit. We have R1=9 Ohms, R2=5 Ohms, R3=19 Ohms, V=2 Volts, L=0.09 H. L and R2 are connected in series, Combination of L and R2 in series is connected with R3 in parallel. This whole combination is connected in series with R1 and voltage

268. English

e.g. I plant potatoes shopping tomorrow. (How can I change this sentence into a correct sentence? Would you correct it?)

269. art

5 recommendation on how 2o overcome the life style desease of cancer

270. language arts Ms. Sue please last question

5. Identify the verb in the following sentence. As of next Saturday, Adam will have been gone for ten days. (1 point) will will have will have been will have been gone is the answer "will have been gone"?

271. math

what is 9 over 7, 5 over 4, and 13 over 10 ordered from least to greatest?

272. Math

One side of a rectangle is 6 units larger than the other. If the area of the rectangle is A, what is the length of the smaller side?

273. life orientation

Name two institutions that are involved in supporting these disasters

How many times larger is a cube than a pyramid with the same base?

10-0.35=

276. Math

53.3 feet was equivalent to 1 yard on the football field. which equation could coach use to find f the number of feet equivalent to y the number of yards on a football field? A.f=3y B.f=y+3 C.f=3/y D.f=y/3 A

277. physics

An object whose height is 0.670 meters is located 2.00 meters from the face of a thin convex lens with a focal length of 0.780 meters. The image will be located ______ meters away from the lens.

278. college algebra

for the function g(x)=5x^6-3x^3+x^2-x, list the possible rational zeros of g(x) and then use synthetic division to factor g(x) completely. ***i'm confused, doesn't this problem need a constant?****

279. Physical Science

Why does pressure change with elevation and depth?

280. Math

If 9m+5=2m+26, what is the value of m?

281. English

what does he makes his life seems like "poor me" and he is elevated the process of suffering to a level that any martyr would admire means??

282. math

a bird on top of a lightpole 27 feet tale and i am 50 feet at an angle of 28 degrees how far am i

283. maths -urgent

Find SP, if market price= Rs. 70 and commission =10 percent

284. Math

Irma rents movies online each month it costs her a fee of \$4.99 per month plus an additional \$0.99 for each video game that she rents. Which equation can be used to find c, the cost Irma pays each month to rent movies and x video games? A.c=4.99x0.99(x)

285. math

A sphere and cone have equal radii and equal volume. Find the relation between the radius and the height of the cone

One side of a rectangle is 6 units larger than the other. If the area of the rectangle is A, what is the length of the smaller side?

287. distributive property

What is the answer to this problem -7(10+7f)

288. Math

A floor plan has a scale of 1/4 in : 5 ft. Find the length on the drawing for an actual length of 60 ft.

289. Physical Science

Why does pressure change with elevation and depth?

How many times larger is a cube than a pyramid with the same base?

One side of a rectangle is 6 units larger than the other. If the area of the rectangle is A, what is the length of the smaller side?

292. math

Kelly estimate that 1 handful equals a cup. If this true how many handfuls equals a galloon