# Questions Asked onMay 17, 2012

1. ## Probability and Statistics

A package contains 12 resistors, 3 of which are defective. If four are selected, find the probability of getting the following. No defective resistors One defective resistors 3 defective resistors

2. ## trig

Given sin a = 15/17 with a in Quadrant I and cos beta = 4/5 with beta in QuandrantIV, find the exact value of cos(a+beta)

3. ## math

If AC = 20, AE = 25, and AB = 5, what is the length of AD?

4. ## chem, predicting direction of change in entropy

Predict the direction of the entropy in each reaction. a. CaCO3(s)-> CaO(s) +CO2(g0 b. NH3(g)+HCl(g)->NH4Cl(s) c. 2NaHCO3-> Na2CO3(s)+H20(g) +CO2 d. CaO(s)+CO2(g)-> CaCO3

5. ## trigonometry

given v=5i+3j and w=-4i+8j, find projwv

6. ## Chemistry

How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7gFe? Fe2O3(s) + 3CO(g) => 3CO2(g) + 2Fe(s)

7. ## chemistry

x gm og Ag was dissolved in HNO3 and the solution was treated with excess of NaCl when 2.87 g of AgCl was precipitated. find the value of x?

8. ## algebra

write an equation in slope-intercept form for the line passing through (-2,6) and (4,-3)

9. ## physics

a small pith ball carries a charge of -1.3 uc. how many excess electrons does this represent?

10. ## Algebra 2

Find the arithmetic mean a n-1=3.9, a n+1=7.1

11. ## trig

what is the magnitude and direction of the vector U= -2i - 3j

12. ## physics

the magnetic force on a straight 0.15m segment of wire carrying a current of 4.5 A is 1.0 N. What is the magnitude of the component of the magnetic field that is perpendicular to the wire?

13. ## Medical

Stan is on active military duty and, therefore, is probably receiving medical coverage from A. TRICARE. B. CHAMPVA. C. Medicaid. D. SCHIP My answer is (A) can someone tell me if this is the right answer

14. ## trig

an angle with the radian measure of 9pi/5. find radian measure of its reference angle. answers: -4/5, 4pi/5, -pi/5, or pi/5

15. ## physics

A girl throws a water-filled balloon at an angle of 50.0 degree(s) above the horizontal with a speed of 12.0 m/s. The horizontal component of the balloon's velocity is directed toward a car that is approaching the girl at a constant speed of 8.00 m/s. (See

16. ## Algebra 2

Write a recursive formula for the sequence 15, 26, 48, 92, 180, ... Then find the next term.

17. ## Math

The bar graph shows the cumulative number of death form AIDS in the US, from 1990 through each of the years 1996-2002. The data in the graph can be modeled by the following polynomials, in which f(x) and g(x) represent the cumulative number of AIDS deaths

18. ## science

a passenger in a ferris wheel rates 3m/s in a vertical circle of radius 5m. find the apparent the ratio of his apparent weight to his true weight at the top and bottom of the circle

19. ## chemistry

Na + H2O ¨ NaOH + H2 How many moles of H2 would be formed from 30 grams of Na in the following (UNBALANCED) equation?

20. ## Computer Science

Design a program that will ask the user to enter the amount of a purchase. The program should the compute the state and county sales tax. Assume the state sales tax is 4 percent and the county sales tax is 2 percent. The program should display the amount

22. ## Chem 1

Which one of the following electron transitions would result in the loss of energy from a hydrogen atom? a. n=1 to n=3 b. n=5 to n=3 c. n=4 to n=6 d. n=1 to n=5

23. ## Economics

The formula given was: (real rate of interest) = (nominal rate of interest) - (expected rate of inflation) A chartered bank offers a one-year loan at "3 points above prime." Prime is 4 per cent. a) What is the nominal interest rate? b)If expected inflation

24. ## algebra1

graph the system of inequalities, and classify the figure created bu the solution region. y¡Ü4x+4 y¡Ü-0.25x+4 y¡Ý4x-1 y¡Ý-0.25x-1 a)the shaded region is a plane minus a rectangle b)there is no region common to all four inequalities c)the shaded

25. ## math

what is the boy-girl ratio in a class of 32 pupils if there are 18 girls?

26. ## Bus Finance

Consider the following income statement and answer the questions that follow: Sales (100 units) \$200 Variable costs (\$.80 ea) 80 Fixed Costs 20 EBIT 100 Interest Expense 30 EBT 70 Income tax 24 Net Income 46 a. What is the firm’s Breakeven Point in

27. ## finance

Calculate the IRR of the following project: Year Cash Flow 0 -\$30,000 1 \$40,000

28. ## physics

The potential difference between the accelerating plates of a TV set is about 30 kV. If the distance between the plates is 1.1 cm, find the magnitude of the uniform electric field in the region between the plates. (in N/C)

29. ## algebra 2 help please

D)x^2+y^2=625 X^2+(y-50)^2=1122 Y=20 (-15,20)(15,20) E)x^2+y^2=625 X^2+y^2-200y+10000=13618 Y=18 (-20,-15)(20,-15) 1)Combine your answers from Parts D and E to pinpoint the epicenter of the earthquake 2)Graph the equations for all three stations to verify

30. ## math

you need 5 foot long board into pieces that are 3/4 of a foot long. How many pieces can we cut? what length of the board will be left?

31. ## Calculus

A container is in the shape of an inverted right circular cone has a radius of 2 in at the top and a height of 6 in. At the instant when the water in the conatiner is 5 in deep, the surface level is falling at the rate of -.4 in/s. Find the rate at which

32. ## Econ

Do people living in countries with higher real GDP necessarily have better living standards compared to countries with relatively lower GDP? Give practical example. 2. What measures would better compare the well-being (living standard) for residents of

33. ## Calculus

determine an equation for each plane a) contains the point A(6,2,3), B(5,1,-3), and C(5,7,-2) b) parallel to 2x + 6y + 4z = 1 and contains the point P(3,2,1)

34. ## Calculus / a bit of physics

explain why a scalar equation of the line exists in 2-D space, but not in 3-D space.

35. ## Early Childhood Education

Of the following tasks performed outside the classroom,which is the MOST time-consuming?

36. ## math

Compute 9(sub)C(sub)6

37. ## Polynomials. :) :)

2x^4+4x^3-7x^2-x+7 Approximate the irrational solutions correct to 3 decimals. If there is more than 1 real solution, enter them from smallest to largest, separated by a comma.

38. ## Medical

When a physician is billing under the RBRVS system, he or she is using A. APCs. B. HCPCS/CPT codes. C. MS-DRGs. D. ICD-9 procedure codes My answer is (B) check this one for me please

39. ## finance

The expected return on the market is 12% and the risk free rate is 7%. The standard deviation of the return on the market is 15%. Ones investor creates a portfolio on the efficient frontier with an expected return of 10%. Another creates a portfolio on the

40. ## Management

1. Regarding management and leadership, which statement is most accurate? A. Leaders can be good managers, and good managers can be leaders. B. Leaders aren’t managers, and managers aren’t leaders. C. Leadership and management are entirely unrelated.

41. ## trig function

Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x after it has been horizontally compressed by a factor of 1/2. Please help, thank you!

Find the value of x. If necessary, round your answer to the nearest tenth. The figure is not drawn to scale. {THe figure is a circle with a tangent crossing through the top section of the circle. The value of the tangent is 12. There is a line

43. ## chemistry

a candle was 27.9 grams. the mass of the candle that burned in 3 minutes was 7.2 grams. a) How many moles of wax were in the candle before it burned ? b) How many molecules are in the candle before it burned? c) How many moles of wax were used up during

44. ## circles

Find x Is the triangle equilateral, isosceles, or scalen, and explain. The picture is a circle with a triangle inside P at the top and Q left corner and R at right corner it's labeled with (8x-10) on the outside of the circle between QP, and (6x) on the

45. ## Algebra

give the domain of the function: f(t)= 3t²+5t+2

46. ## Determine value of X

Given the functions f(x)=sqrt[x] and g(x)=x+1, determine all possible values of x for which f(g(x)) = g(f(x)). Show steps please, thanks a lot!

47. ## grammar

Rewrite each sentence below, replacing all clichés with more creative or straightforward expressions.Since we had worked like dogs for eight hours, we finally put a lid on it at 6:00 p.m.

48. ## science review

since tomorrow is my test. Please check: seed coat- skin covering the seed to protect the inner parts Hilum- ? cotyledon- where nutritient is stored inside the seed embryo- part of a seed that grows into a plant. it include roots, leaves, and stem?

49. ## math

Compute: The number of combinations of 8 elements taken 3 at a time. The number of permutations of 8 elements taken 3 at at time.

50. ## Physics

What liquid substances have an index of refraction of 1.42? and then 1.43?

51. ## to ms.sue

what is wrong with the answer. also what is hilum?

Given: f(x)=2x^2-x+1 g(x)=2 sin x h(x)=3^x Determine: a) f(g(x)) b) (h^-1 o f)(x) c) g(f(h(x)))) Please show steps, thank you very much.

53. ## ALGEBRA

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. (Round your answer to the nearest cent.) \$300 balance, 18% rate, \$250

54. ## honors chemistry

why were the noble gases considered to be inert gases until the 1960s?

55. ## math

A recipe for glue for paper mache masks is shown. If you wanted to make 1/2 of the recipe, how much water would you need? Recipe for glue : 2 1/4c water

56. ## analysis

What is meant by the sample space for a random experiment?

57. ## math

What is the number of ways 9 people from a group of 13 could be arranged in a line.

58. ## algebra 2

use quadtratic formula to find any X intercept. y=4x^-5x-4

59. ## Calculus

Find the third Derivative of f(x)=x(3x-7)^3 The answer is 3x-1134 but I attempted the problem multiple times and I keep ending up with 648x-1134. What am I doing wrong?

60. ## algebra 2

solve 25n^-9=0

61. ## trig

write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x), sin6x-sin2x

62. ## Finance

Your firm is looking at a new investment opportunity, Project Alpha, with net cash flows as follows: ---- Net Cash Flows ---- Project Alpha Initial Cost at T-0 (Now) (\$10,000) cash inflow at the end of year 1 6,000 cash inflow at the end of year 2 4,000

63. ## LA

Belonging to you _ _ _ R

64. ## Information Systems in Organizations

Directions: Test your knowledge of this topic by selecting the best answer for each of the following questions. When you click the Submit button, you will see your score and the results will go to your instructor. You may want to refer to the general

65. ## LA

Showing a fixed, firm purpose; determined R _ S _ L _ _ E_ _

66. ## history

1) Romans elected leaders to make _______. 2) The ________ wrote the laws on the 12 Tables.

67. ## English 7 - Journal Entry Check

Please check my journal entry to see if it's good and if there any grammar mistakes. This is an assignment for English. Art Therapist When I was doing some research on the computer two weeks ago, I saw the word "art therapist". For a moment I thought being

68. ## math

solve 27^2x-1=(1/81)^x

69. ## Math. Fractions

Emily exercised from 4:05pm tob4:32 pm For what part of an hour did Emily exercise ? Write the fraction in simplest form Would it be 27/60 = 9/20

70. ## math

if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7

71. ## LA

Feelings of uneasiness of doubt _ U _ L _ _

72. ## math

if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7

73. ## Health

I left out this part. Thank you very much, Writeacher. 1) Have you received any news about our common project? How are things getting on in England? When do school holidays start in England? 2) When do you think we will know if the Commission has approved

74. ## algebra 2

If f(x) = int(x), find the given functional value. 1. f(-9.1)

75. ## math

if you have a large cube with a surface area of 32 and a smaller cube with the surface area of 18 what would the ratio be for the smaller figure to the larger figure a)2:5 b)5:6 c)3:4 d)6:7

76. ## LA

Carried away by shallow love or affection _ N _ A _ _ A _ E _

77. ## algebra 2

how can you tell when y is a function of x on a graph

78. ## English

would "the only heroic thing is the sky" be personification?

79. ## healthtasha

how does an office manager software work?

80. ## Math

There are six different toppings for pizzas, sausage, hamburger, pepperoni, ham bacon and pork. There are three different cheeses, american, mpzzarella, parmeasan. the pizza comes with two different meats and one chese , how many different combinations of

81. ## Chemistry

How do I calculate the mass of sodium carbonate required to neutralize 15-20 mL of 0.25M HCl at the stoichiometric point?

82. ## Language Arts

Easy to manage or discipline D _ _ _ L _

83. ## essay

what are some some similarities and differences between dawn and night by elie wiesel?

84. ## Math

Victoria has a boat that can move at a speed of 20km/h in still water. She rides 140km downstream in the same time it takes 35km upstream. What is the speed of the river?

85. ## Chemistry

PLEASE fully explain these...I've already tried to figure them out and failed terribly... thanks so much 4. 5.6 x 10-6 mol of A and 5 x 10-5 mol of B are mixed in a 200 mL flask. The system is represented by the equation: At equilibrium, there is 4.8 x

86. ## science

a u-tube is partially filled with water.oil which does not mix with water is next poured into one side until water rises by 2.5cm on the other side.if the density of oil be 0.8 ,the oil level will stand higher than the water level by how much?

87. ## writing

what do my paper needs Im applying for the E R register position at Greenwood Leflore Hospital. I gain knowledge working as a floor secretary and working along with nurses. The experience taught me the value of human life. Learning to feel what a person

88. ## PHYSICS

A LORRY INCREASES VELOCITY FROM 6m/s TO 10m/s IN 25 SECOND.FIND THE ACCELERATION.

89. ## Number sequence

Find the next 3 numbers of this sequence 243, 81, 27.

90. ## Language Arts

Seemingly virtuous; showing religiuos devotion P _ O _ S

91. ## Physics

At an instant, Runner 'A' runs at 6m/s with an acceleration of 2m/s^2. Runner 'B' runs at 5m/s with an acceleration of 4m/s^2, and the former (Runner A) is 2 metres ahead of the latter (runner B). How long does it take for Runner B to catch up with runner

92. ## physics

A 2kg toaster is at rest on a table which has no friction.Sally begins pushing the toaster to the right with a force of 6n for seconds. A)what is the net force on the toaster? B)what is the toaster a cceleration? C)what will the velocity be at the end of

93. ## Probability and Statistics

A package contains 12 resistors, 3 of which are defective. If four are selected, find the probability of getting the following. No defective resistors One defective resistors 3 defective resistors

94. ## Geometry Inscribed Angles Multiple Choice

Find the measure of angle BAC. {There's an image of a circle with an angle from the top left side going to the bottom of the right side. Point A is the point at the top left side starting the angle, and B is at the bottom and point C is at the bottom right

96. ## Chemistry

A2B3 --> 2A + 3B I 0.001 0 0 C –x 2x 3x E 0.001-x 2x 3x 3x = 0.006, x = 0.002 A = 0.004 B = 0.006 A2B3 = 0.001-0.002 = (0.004)2(0.006)3/ Am I close?

97. ## trig

what's the single trig. function of cos6xcosx-sin6xsinx

98. ## physics

If you are drive your car into a brick wall and are not wearing a seat belt,you will be badly injured why?your answer should include the word "force" and velocity"

99. ## Chemistry

4. 5.6 x 10-6 mol of A and 5 x 10-5 mol of B are mixed in a 200 mL flask. The system is represented by the equation: 2A + B --> 3C I 2.8x10-5 M 2.5x10-4 0 C -2x -x +3x E 2.8x10-5-2x 2.5x10-4-x 3x10-5 B = 2.5x10-4-x = 2.4x10-4 x = 1x10-5 A =

100. ## math

Find the number of different groups that could be made using 11 people from a set of 30

102. ## trig

write sin4xcos2 as the sum or difference of two functions.

103. ## dosing

if 1 tablespoon is prescribed as a dose of medicine,approximately how many doses will be obtained in 12 fl.oz?

104. ## voc.

to be carried by a carriage or on horseback 4 letters

105. ## trig

solve 2cos^2x-sinx=1, 0 < or equal to x < 2pie

106. ## Literature

im really confused about this poem. What does it have to do with the three little pigs? or is it ot an allusion at all? Foundations Leopold Staff I built on the sand And it tumbled down, I built on a rock And it tumbled down. Now when I build, I shall

107. ## Physics

The appromiate mass of a comet X has been memasured. When comet X orbits the Sun 5000 years later it only has half it's previous mass. Approximately how many orbits of the Sun has the comet completed and what is the period of the comets orbit?

108. ## trig

write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians.

109. ## english

you've applied foa specific job in your field of study. the human resource ARRANGE A INTERVIEW AND TELL YOU BRING YOUR POLISHE PIECE OF WORK

110. ## physics

A hocky puck is sliding along at 3m/s on an air hocky a) what is the net force on the puck? B)what is the pik's acceleration? C)what will the puck's velocity do?be detailed

111. ## trig

a vector has a magnitude of 16 and direction of 120 degrees. write the vector in terms of unit vecotrs i and j.

112. ## Pre-Calc

Hello! I'm stuck on how to do this problem and would appreciate some help! Choose a non-zero complex number c for f(z) = z2+ c. Find a complex number v that is in the escape set. Find a complex number w that is in the prisoner set. Graph the first five

113. ## trig

find the angle between vectors U= and V=

114. ## Algebra 1A

Home Size The average size F in square feet of new U.S. homes built during year x is estimated by the formula F = 34x - 65,734, where x is any year from 2002 to 2008. In which year was the average home size 2504 square feet?

115. ## physics

a large truck is driving down the street when it hits a small bug a) which object has the larger force acting on it? b) which object has the larger acceleration?why?

116. ## trigonometry

find the dot product of u=2i-7j and v=i+8j

117. ## trigonometry

write 2=5cis 11pie/6 in standard form.

118. ## trig

write 2+2 squareroot of 3i in trig form.

119. ## trig

U=5i+11j and V=2i-3j, find 2U-7U

120. ## PHYSICS

A BODY CHANGES IT'S VELOCITY FROM 20M/S UNTIL IT COMES TO REST IN 10 SECONDS.WHAT IS IT'S ACCELERATION

121. ## Calculus

determine the angle between the planes 2x + 2y + 7z = 8 and 3x - 4y + 4z = 5

122. ## Calculus

three forces each of magnitude 50 N, act in eastward, westward, and northwest directions, Find the resultant force.

123. ## honors chemistry

Compare the present Periodic Table with Mendeleevs original Periodic Table in terms of how it is organized, number of elements, what it looks like, ease of understanding, and information given.

124. ## Calculus

determine the each resultant a) 10 km/h north followed by 8 km/h west b) 25 N at 10 degrees to the horizontal and 30 N horizontally.

125. ## physics

what has more inertia? a toy car going 1000mph or a cruise ship sitting at the dock

126. ## Calculus

Write a vector equation AND parametric equations of the line through the points A(6,-1,5) and B(-2,-3,6) direction vector = [8,2,-1] a vector equation r = (6,-1,5) + t(8,2,-1) use that to write the parametrics how do i write parametrics

127. ## Art

I still have a few things I'd like you to consider, Writeacher. Thank you very much. 1) She refused to go to the dentist's We are planning to move into a new house. 2) They offered me to go for a week in Egypt: They offered to let me go to Egypt for a

128. ## physics

i will begreatfull if u help me insolving the below problems: 1.)the time period of a pendulum clock on the surface of the earth is 6 sec.Find the timeperiod of the same pendulum on the moon.(g=9.8m/sec2) 2.)the time period of a pendulum is 6.28sec.Whay

129. ## animals

What is the habitat and location for the Florida Bonneted bat*? Also, what is its kingdom, phylum, class, order, and sub order? *Also known as the Wagner's Mastiff bat or the Wagner's Bonneted bat

130. ## algebra

Jonathan and Bill need to stack firewood. Jonathan can stack 130 pounds of firewood in 2 hours. Bill can stack 150 pounds of firewood in 3 hours. How long will it take them to stack 400 pounds of firewood if they work together (round to the nearest

131. ## Algebra

find the arithmetic mean A_n-1_-3.9, A_n+1_=7.1

132. ## Algebra 2:)

f(x)=x^5-2x^4-2x^3+4x^2-3x+3 Approximate the irrational solutions correct to 3 decimals. If there is more than 1 real solution, enter them from smallest to largest, separated by a comma.

133. ## Math

can you help me do my homework

134. ## English

in shadowy valleys and rocky ravine where tiny rills meet with rushing streams need it description

135. ## math

A pastry chef has 13 pounds of apple slices to make 8 apple pies. if the chef distributes the slices equally, what will be the weight of the apple slices used to make each pie?

136. ## world geo

is war an example of human geography?

137. ## physics

An ideal gas with r(Gama) = 1.5 occupies a volume of 2.0 L. The gas expands isothermally to a volume of 3.0 L. Alternatively, the gas reaches the same final state by first adiabatically expanding to the final volume then heating isochorically to the final

138. ## Chemistry

Calculate the grams of solute required to make 2500mL of 90% saline solution?

139. ## Literacy poetry1

Does any one have the answers for the penb foster poetry 1 exam

140. ## physics

A wind sled has a mass of 45kg and is gliding at a speed of 2m/s over the frozen lake with neglible frictional effects. A gust of wind behind the sled exerts a force of 10N over a distance of 30m. With what speed is sled moving after the wind gust?

141. ## English

As you research, verify the facts you find by consulting______. A.Mutilple sources B.Yor English teacher C.The encyclopedia D.The preface Secondary sources______. A.Provide firsthand testimony and direct evidence B.Interpret and analyze primary or other

142. ## algebra1

can you guys please graph the system of inequalities and clasify the solution of y¡Ü4x+4 y¡Ü-0.25x+4 y¡Ý4x-1 y¡Ý-0.25x-1

143. ## Medical

Which of the following may lead to claim denials or improper service reinbursement? A.Reporting of multiple APG B. HCPCS codes on out patient surgeries C.Inaccurate physicians documentation D. Updated ICD-9-CM codes (C) ic my answer can someone check this

144. ## algebra1

can you guys please classify the system as consinent or inconsitent, and determin solution x-y+z=6 7x-2y-2z=1 5x+6y+3z=11

145. ## algebra1

wihtout graphing, is this system independent, dependent, or incosistent? -2x-y=9 3x-4y=-8

146. ## Physics

find the altitude change of a 10,000 kg fighter which climbs and in doing so loses 100 m/s of airspeed

147. ## trig

what is the exact value of sin[tan^-1(2/3)]

148. ## geometry

you have a scoop of ice cream 3 inches in diameter sitting on a cone with 1 inch

149. ## Polynomials. :) :)

f(x)=2x^4+4x^3-7x^2-x+7 has no rational roots. Approximate the irrational solutions correct to 3 decimals. If there is more than 1 real solution, enter them from smallest to largest, separated by a comma

150. ## english

what would the tone of this poem be? serious? Foundations Leopold Staff I built on the sand And it tumbled down, I built on a rock And it tumbled down. Now when I build, I shall begin With the smoke from the chimney

151. ## Math

1) Matt traveled the first leg of his trip for 1350 miles on a large jet. He then traveled an additional 600 miles on a private plane to reach his destination. If the speed of the jet was three times the speed of the plane and the total time in the air was

152. ## trig

Write an equation for simple harmonic motion, given that the amplitude equals 4 inches and the period equals 2 seconds and the max displacement occurs when t=0. answers: y=4sin pi t, y=4cos pi t, y=4cos t, y=4sin2 pi t

153. ## Beginnings and Beyond Early Childhood Education

All the following are reasons record keeping is essential to good early childhood program EXCEPT:

154. ## Math Help!!

Solve 2x-y-5z=1 x+2y+3z=9 3x+6y+z=11 2x-3y=-13 -5x+2y=16

155. ## Physics

find the altitude change of a 10,000 kg fighter which climbs and in doing so loses 100 m/s of airspeed

is -2x-y=9, 3x-4y=-8 dependent, independent, or inconsistent

157. ## Art

Can you please check these sentences, Writeacher? Thank you very much. 1) “I have been to Greece twice," he said. (He said that he had been to Greece twice) 2) It was the first time I had spent my vacation without my parents. Mary had done all the

158. ## trig

write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x), sin6x-sin2x

159. ## Physics

What magnitude of acceleration will result when 60N and 80N forces in opposite direction if applied to a 5kg body?

160. ## algebra

Factor the trinomial below. Write each factor as a polynomial in descending order. Enter exponents using the caret ( ^ ). For example, you would enter x2 as x^2. 25x2 + 30x + 9

161. ## algebra

Solve 8(x-1) + 4 = 9x - 8

162. ## algebra1

graph the system of inequalities, and classify the figure created bu the solution region. y¡Ü4x+4 y¡Ü-0.25x+4 y¡Ý4x-1 y¡Ý-0.25x-1 a)the shaded region is a plane minus a rectangle b)there is no region common to all four inequalities c)the shaded

163. ## algebra

find the value of c so that (c,5) is a solution to 2x + 3y =7

164. ## algebra

what is the slope of the line x = -2/3

165. ## trig

write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians. answers: sqrt2sin (x+3pi/4), sqrt2sin (x+5pi/4), sqrt2sin (x+pi/4), or sqrt2sin (x+7pi/4) ...?

166. ## Chemistry

The pH of a 0.010 M aqueous solution of a weak monoprotic acid, HX, is 4.5. What is the value of the acid ionization constant?

167. ## math

the base of a container for coin boxes is 2 feet by 3 feet the base of the coin boxes is 2 inches by 3 inches the greastes number of coins that will fit into the container in a single layer is

168. ## Mathematics

A loan of 12,000 was borrowed from a bank at 14% per annum. Calculate the interest of the loan at the end of the first year. And the total amount owing at the end of the first year. A repayment was made of 7,800 at the start of the second year. Calculate

169. ## ethics

Give an example from the past that indicates a similar result or a current social policy that might be regarded as wrong, which therefore needs to be changed.

170. ## Math

Can you help me with the following Input and Output values? Input 0 Output 1 Input 1 Output 10 Input 2 Output 20 Input 3 Output 30 Input 4 Output 40 Input 5 Output 50

171. ## social studies 9

Dickens is famous for the names he gave to his characters-- Uriaha heap, mr gradgrind and little doritt are a few examples. often theses names help us to visualize the person. does the name "bumble" help you visulize the beadle? describe bumble, and

172. ## boring history

why was the aztec civilization considered warlike???

173. ## Algebra2 {ASAP}

Hi helper, I used permutation for the following question. How can i use combination to find the answer? Help me please! There are 12 red checkers and 3 black checkers in a bag. Checkers are selected one at a time, with replacement. Each time, the color of

174. ## Math

If a van is traveling at 25mph and needs to stop immediately, how much time and distance will be needed?

175. ## algebra 1

y=2x-1 2x-y-1=0 a)this sytem has excatly onw solution b)this system has indinetly many solutions c)this system has no solution d)(1,1) and (0,0)

176. ## math

Farmer has 100yd by 60yd fence around his barnyard. How many yards of fence is needed to replace it?

177. ## math

[(14+7) / 3] + 10 x (6-3)

178. ## function rate of change

Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection.

179. ## Average rate of change

Please help.. Determine the value of "g" so that the average rate of change of the function h(x)=x^2+3x+2 on the interval -3≤x≤g is -1. Thank you.

180. ## combine function, find x

Given the functions f(x)=sqrt[x] and g(x)=x+1, determine all possible values of x for which f(g(x)) = g(f(x)). Show steps please, thanks a lot!

181. ## algebra1

how many solutions does the system have? x-2y=6 3x-6y=18 a)1 b)2 c)many d)none

182. ## compound function

Given: f(x)=2x^2-x+1 g(x)=2 sin x h(x)=3^x Determine: a) f(g(x)) b) (h^-1 o f)(x) c) g(f(h(x)))) Please show steps, thank you very much.

183. ## english

What does this poem mean? (tone, mood, and rhyme scheme) At the Un-National Monument Along the Canadian Border William Stafford This is the field where the battle did not happen, where the unknown soldier did not die. This is the field where grass joined

184. ## trig

find the angle between vector U= and V= answers: 88 degrees, 45 degrees, 135 degrees, or 92 degrees...?

185. ## trig

write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x), sin6x-sin2x

186. ## compensation and benefit

Discuss the possible impact of StopNShopToday, Inc. stores being located solely in one of the following three locations with the indicated employee demographics: Location: •New York City, NY ◦average employee age: 30 years old ◦male/female ratio:

187. ## English

What are the literary elements of this poem and what does it mean? Foundations Leopold Staff I built on the sand And it tumbled down, I built on a rock And it tumbled down. Now when I build, I shall begin With the smoke from the chimney.

188. ## Math equation

I have no idea how to solve this. f(x)=3x-4 a) f(10) b) f (-2) c) f (0) d) (b)

189. ## algebra1

y=-x+8 x+y=7 a)(1/2,15/2) b)system has infinitely many solutions c)(-1/2,17/2) d)no solutions

190. ## Math

If Sally places a rocket that is 3 feet 6 inches tall atop a launch pad that is 1 foot 8 inches tall, how tall will the entire unit, rocket and launch pad, be when she is done? A.5 feet 4 inches B.5 feet 2 inches C.1 foot 8 inches D.4 feet 2 inches B? 3

191. ## life orientation

which two institutions/community organizations are involved in supporting or giving redress to teenage pregnancy?

192. ## Math does anyone know this?

y= x^2 +4x-5 x intercept- 4? y intercept- -5? vertex-? I don't know how to find the vertex. axis of symmetry?

193. ## fraction

How do I campara the fraction 7/8 and 8/9

194. ## chemistry

1) What 2 resources are used up as a candle burns? 2) What has happened to the atoms in these resources? 3) Is it possible to recover these 2 resources after theyve been used?

195. ## Physics

An object is projected from ground level with launch speed u and at an angle theta above the horizontal. Find the values of u and theta if the range is 28.6m and time of flight is 1.43secs. thanks!

196. ## Precalculus

Write a logarithmic equation for 3^3/2= squareroot 27

197. ## math

How do you solve 6(cos^2)x+cosx=1 I need it in the form that's like (x+x)(x+x) so that I can set them equal to zero and find the answers. Please show all of the steps.

198. ## math

Miss C gives a test to the 10 students in her first-period algebra class. The grades are 93,82,95,86,90,84,89,79,87,93 A. Find the mean and Standard Deviation of the 10 scores. B. List all the reasons for why the late class could have a different mean or

199. ## math

How do you solve 6(cos^2)x+cosx=1 I need it in the form that's like (x+x)(x+x) so that I can set them equal to zero and find the answers. Please show all of the steps.

200. ## math

Permute Sub(11)Psub(4) Sub(5)Csub(5)

201. ## Information Technology 130 Programming Concepts

True or False Indicate whether the following statements are true or false. 1. T F: You cannot break up a word with the line-continuation character.

202. ## financial understanding

if apr is 7.3% daily and haad \$400 1st 10 days, 1500 next 10 and 600 next 10 how much intrest was earned at end of month

203. ## US HISTORY

NO ONE KNOWS FOR CERTAIN WHY THE CLASSIC WORLD BEGAN TO DECLINE. GIVE TWO REASONS FOR A REASONABLE DECLINE?

204. ## Math

A cone has a volume of 41 cubic meters. If cut the cone in half, what would be the volume of the cone?

205. ## math

On Saturday, the fruit and juice bar was selling 23 glasses of fruit punch an hour. By 4 p.m., they had sold 138 glasses. If their goal was to sell at least 276 glasses of fruit punch, which inequality can be used to find h, the number of hours they must

206. ## Life orientation

8 way in which the environmental problem impacts on your community

207. ## chemistry

4 moles CO, 5 moles N2 and 2 moles C2H4 are placed in a 5 liter vessel at 27 degree celsius . the ratio of kinetic energy per molecule of CO2, He and NH3 is

208. ## AlgebraB

Help! I have to graph my answer to this problem: ADFG has vertices D (–2, 4), F (–3,1), and G (–1, 2). Find the vertices of the image after the rotation of 180° about the origin.

209. ## chemistry

4 moles CO, 5 moles N2 and 2 moles C2H4 are placed in a 5 liter vessel at 27 degree celsius . the ratio of kinetic energy per molecule of CO2, He and NH3 is

210. ## English

(From Emily Dickinson's "The Moon is Distant from the Sea) In the Dickinson poem, the moon and the sea are metaphors for a. uncaring and cold natural forces b. a strict teacher and a frightened pupil c. a loved one and the speaker d. the effect of a rising

211. ## English

would "sunburned shoulders" be an exaple of alliteration even though its a "sss" and "shh" sound?

212. ## math

Using the letters in ADJUSTING without repeats, How many different nine letter arrangements could be made? How many of these nine-letter arrangements have a consonant in fifth position and J in sixth position? What special name is given to the sixth

213. ## Function: Rate of Change

Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection.

do you use its or it's in this sentence "The horse hurt _____ leg"?

215. ## Average of Rate change

Please help.. Determine the value of "g" so that the average rate of change of the function h(x)=x^2+3x+2 on the interval -3≤x≤g is -1. Thank you.

216. ## algebra

Rewrite this polynomial so that the terms are in ascending order: 8x + 4x^4 + 10 + 6x^3 + 3x^5

217. ## Art

I left out these sentences. Could you please check them, too? Thank you. Is punctuation OK? 1) People suppose that he worked for Fiat. He is supposed to have worked... 2) Someone asked her about the weather. 3) My parents let me go on holiday on my own.

218. ## trig function

Suppose f(x)=cos x - sin x and g(x)=cos x + sin x. Explain why the graph of (fxg)(x) is equivalent to the graph of h(x)=cos x after it has been horizontally compressed by a factor of 1/2. Thanks so much...