# Questions Asked onJanuary 24, 2017

1. ## Calc 2

Differentiate the function: y=sqrt(xe)^x^2(x^2+1)^10

2. ## Math

Verify [4×(-2)]×5=4×[(-2)×5] if they are equal,write the appropriate property.

3. ## Chemistry

How many moles of carbon are in a 28.0g sample? I have no idea where to start

4. ## Spanish

Which popular physical activity in the Spanish-speaking world would you prefer to participate in? Why? Write you answer using as many Spanish words as possible. What are some Spanish-speaking world activities?

5. ## Algebra

Why/how does the exponent of 1/2 mean the square root?

6. ## Math

A guy travels to his home which takes 4 1/3hrs and a distance of 350km, he travels 60km/h for the first part and 90km/h for the rest of the journey. Find: An equation for the distance An equation for the time Detemine the distance he travelled for the

7. ## Science

Provide 3 statements that demonstrate the importance of units when describing motion. I don't fully understand the question, can someone please explain it to me a little more?

8. ## Math

an employee is paid \$3600 for the first month. she is paid an additional 1% at the end of the second month, which means a total of \$3636. she continues to receive a 1% raise each month for a full year. what is her total salary at the end of the year?

9. ## College Stats

Suppose that two random variables X1 and X2 have a bivariate normal distribution, and Var(X1) = Var(X2). Show that the sum X1+X2 and the difference X1− X2 are independent.

10. ## Algebra

Greg ate 1 3/5 of the pizza and Sam ate 2 1/2 of the same pizza how much did they eat together?

11. ## Math

The acute angles of a right angle triangle are in the ratio 4:5,then find the acute angle.

12. ## Math

In 20 spins, how often can you expect to get a number evenly divisible by 2?

asked by Janallene Allan
13. ## Grade 6, ratio

The ratio of the number of one dollar coins in a box was 3:4.six one dollar coins were removed & some fifty cent coins of the same amount were added.the ratio of the number of one dollar coins to the number of fifty cent coins then became 1:3.what was the

14. ## chemistry

Using the electron configuration of nickel (Ni), identify its magnetic character. a. ferromagnetic b. paramagnetic c. no magnetic character d. diamagnetic

15. ## Math

Abby has 45 dogs and ciara has 8000 dogs.Add the dogs 8000 +. 45

16. ## English

How did the elephant save the life o prous

asked by How did the elephant save the life of porus
17. ## Math

~~~~WARNING HARD MATH~~~~ An integer from 100 to 999, inclusive, is to be chosen at random. What is the probability that the number chosen will have 0 as at least 1 digit? Multiple Choice: Underline or circle the letter that best solves the question. a)

18. ## Math grade 6, ratio

A certain sum of money was shared among three friends a,b,&c.a received 3/7 of the sum of money & b got 2/3 as much as a.c received \$49 less than a.find the ratio of b's money to c's money.how much moneydid c receive?

19. ## Science

If an Iron block had a length of 2 cm, and a width of 3 cm and a height of 1 cm and a mass of 33 g between what two liquids would it float?

20. ## Math

Find interest and total amount paid,if a person take a loan of Rs.6500 for 4 years at 9% rate of interest per annum

21. ## Science

Find the work done when a 25kg weight is lifted to a vertical height of 2.0m from ground ...

22. ## America Government

Do you think our country's history would be different if the Articles of Confederation had remained as our constitution? Yes, I do think our country's history would be different if the Articles had remained as our constitution. Being that this government

23. ## algebre

in the abcd parallelogram ad=10 units ab= 8 units ac=12 units ed= 4.5 units bd=

24. ## math

I need help please! What is the solution set? −2.8x+5.6

25. ## help with trigonometry??

Jacob is standing 112 m from a building. The angle of elevation when he looks up to the top of the building is 62°. How tall is the building? I don't really understand how to solve this, please help!!

26. ## chemistry

2. 50.0 mL of 1 M NaOH(aq) and 50.0 mL of 1 M HNO3(aq), both initially at 18.6°C, were mixed in a Styrofoam cup calorimeter. The temperature of the solution rose to 25.4°C. How much heat was released? Assume that the heat capacity and density of the

27. ## Algebra

A load of 12 kg stretches 15 cm and a load of 30 kg stretches 18 cm. Find the natural (unstretched) length of the spring.

28. ## Maths

The diameter of a bicycle wheel is 14 cm.What is the distance covered by it in 50 revolution

29. ## Accounting

On 2015 January 1, Jackson Company purchased equipment for \$440,000. The equipment has an estimated useful life of 10 years and an estimated salvage value of \$40,000. If Jackson uses the straight-line depreciation method, what is the depreciation expense

30. ## Microeconomics

A computer company produces affordable, easy-to-use home computer systems and has fixed costs of \$250. The marginal cost of producing computers is \$700 for the first computer, \$250 for the second, \$300 for the third, and \$350 for the fourth, \$400 for the

31. ## American Government

Do you think our country's history would be different if the Articles of Confederation had remained as our constitution? yes, I do think our country's history would be different if the Articles had remained as our Constitution. Power was given to the

32. ## art

why did the artist most likely color the hair against a black and white background (1 point) A: to illustrate a person that is very organized B:to illustrate a person with limited imagination C:to illustrate a creative personality D: to illustrate a calm

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33. ## Math

Ramana buys 8kgs tomatoes. If the cost of 5 kgs is 65.How much will ramana pay

34. ## DAV; subject biology

What are bio - degradable pollutant?

35. ## English

Give the best analogy. Slavish is grovel as_____ 1. gluttonous is to overeat 2. pen to paper 3. incorrigible is to obey 4. deference is to direspect answer: 1.

36. ## math

A circular field is surrounded by a circular path. The radius of the field is 15 m , and the radius from the center of the field to the outer edge of the path is 20 m .

37. ## English

Give the analogy. Exonerate is to condemn as____. 1. subjugate is to control 2. eat is to drink 3. Purloin is to steal 4. set free is to confine ANSWER: 4

38. ## Trig

Solve equation for 0 less than or equal to theta less than 360. 3-1/5*tan(theta)=16/5

39. ## science

How a comet changes when when it comes close to the sun? It explodes***

40. ## Geometry probability

Betty picks 4 random marbles from a bowl containing 3 white, 4 yellow, and 5 blue marbles. The probability that exactly 1 of the 4 marbles drawn is blue is _____ (I know that the probability is 5/12 and that simplifies to 0.4166 but that is not one of the

41. ## Social Studies PLZ hurry

1. The treaty of Paris, sighned after the seven years' war, gave ______ Complete control of canada. A)Great Brittain *** B)France C)The US D)Spain

42. ## English

Give the correct form of the word " ostensible" . He complimented Mary's mom, ostensibly to make a good impression on both women. answer: ostensibly

43. ## english

_____ provided constitutional justification for segregation for almost sixty years.

44. ## Math

4. The ordered pairs (0, 0), (2, 4), (4, 8), and (6, 12) represent a function. What is the rule for this function? (1 point) y = x +2 y = 3x y = x + 4 y = 2x

45. ## Languages, Spanish

you are dinning at a restaurant in Argentina at 9:30 n the evening.(Dinner) What meal are you most likely eating? A) el almuerzo (This is Lunch, so not this one) B) La Sena *** C) El desayuno Thank you!

46. ## math

A walkway forms a diagonal of a square playground. The walkway is 24 meters long to the nearest tenth of a meter. How long is the side of the playground?

47. ## SS

Which phrase best describes the shift in power in Iraq since independence? A:From Democracy to Monarchy B:From Dictatorship to Monarchy C:From Democracy to Dictatorship D:From Monarchy to Democracy I think it is B or C. Thank you for your help

48. ## Math - Algebra 1

A field must be fenced in. There is 212 yards of fencing material to be used. What should the dimensions of the enclosed area be to ensure that is has the largest area possible? Dimensions_____________________

49. ## Math - Algebra 1

Each cow eats 4.5 cups of feed a day and the bucket it comes in contains 250 cups. The buckets cost \$26.75 each. If a farm has 16 cows, how much will it cost to feed all of the cows for 1 week? (system of equations) Cost____________________

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51. ## Physics

Can someone add me on skype and tell me answers to my physics test tomorrow, I pay good?

52. ## Chemistry

write a balanced nuclear equation for the reaction that occurs when uranium-335 absorbs a neutron and undergoes fission to produce 3 neutrons, bromine-65 and another nucleus.

53. ## maths .social science .technology.english

A train travelling at anaverage speed of 100km/h covers a certain distance in 3 h 36 minutes .at what avarage speed must the train travel to cover the same distance in 2h 30 minutes

54. ## Trig

Thank you Steve for all your help.

55. ## Physical Science

Rank from largest to smallest atomic radius. To rank items as equivalent, overlap them. O, S, Se, Po, Te

56. ## Math geometry

The measure of an angle is twenty more than three times it's supplement. What are the measures of each angle?

57. ## Math

Do you think that advertised discounts are always the best deal? Why or why not? What is a real-world scenario in which the discount is not the best price? Think back to when you bought an item on sale or by using a discount. How did you determine the sale

58. ## applied mechanics

a motorist driving his car at a speed of 72km/hr observes that the traffic lights ahead of him turns red if he comes to a halt at the traffic light 5seconds starting from first find the distance of the car from the light when the motorist observed the red

59. ## Social Studies

Hi, I need help on a test. One of the questions I need help on is: "Gross Domestic Product, or GDP, is best defined as-- A. Money paid to the government in taxes to support public goods and services, B. The value of all goods and services produced within

60. ## French

Fill in the blank with the correct form of the verb Avoir: J'______ un chien. ai **** my choice as avez a

61. ## contrast sceince

Contrast mitochondria and chloroplasts.

62. ## math

dy/dx+(1/x)y=3x^2y^3 find the solution using Bernoulli equation

63. ## Math: Geometry

2. Name four line. Segments that have point B as an endpoint. A. AF, CH, AE, BE B. BA, BF, BC, BH 3. AF, CH, AE, BE 4. BA , BF, BC, BH Please help!

64. ## Social studies

Which of the following phrases might a Republican Congress have used to describe President Johnson's Reconstruction plans

65. ## social studies

Which was the main idea of the great migration to the United States in the late 1800s and early 1900s? 1)the need for workers in the U.S. 2)political unrest in Europe 3)religious persecution in Eastern Europe 4)scarcity of land and money******

66. ## English

Is it correct to write. 'Speeches by the guests'. Is the usage of two plurals correct. Please let me know at the earliest.

67. ## Physics/Energy

A cop of mass of 90.0 kg is chasing a robber and runs up 5 flights of stairs in 20.0 sec. The cop has gone a vertical distance of 12.0 m. Determine the amount of work done by the cop to get to this height.

68. ## Math

3. Which of the following appears to be an irrational number? A. 3.72727272 B. Square root 64 C. -6/5 D.073303330 Plzz help My answer is c

69. ## Calculus

Solve the quadratic equation by factoring. (Enter your answers as a comma-separated list.) 5x2 − 23x = −12

70. ## Trig

4=5+cos(theta)

71. ## Math

There are 144 people in an audience. The ratio of adults to children is 5 to 3. How many are adults? PLEASE HELP!

72. ## social studies

in this question which was the main cause of the great migration to the United States in the 1800s and early 1900s. a. the need for workers in the US b. political unrest in Europe c. religious persecution in Eastern Europe d. scarcity of land and money I

73. ## English

Insert semicolons in the following sentences as needed. In some sentences, semicolons will replace commas, Above the sentence, write the words before and after the semicolon. 1. At the market Flora selected strawberries, which were on sale, a pineapple,

74. ## Anonyms

What is the perimeter of a square which has the same area as a circle with circumference of 4π?

75. ## math

A construction company needs to remove 416 tons of dirt from a construction site. They can remove 89 tons of dirt each hour. What is the total number of hours it will take to remove the dirt?

76. ## Calculus

Piecewise function x if −2≤x≤0; x^2 if −2

77. ## physic

150g of ice at 0 degreecelcius is mixed with 300g of water at 50 degreecelcius.calculate the temperature of the mixture.

78. ## Algebra

Factor each: f(x)= x^3 + 7x^2 + 10x f(x)= 5x^3 -19x^2 - 4x

79. ## Check my answers, Physical science

my answer has the **** 1. What is the smallest part of all matter called? (1 point) * a. Element b. Atom***** c. Molecule d. Compound 2. Which of the subatomic particles is negative? (1 point) a. Nucleus b. Neutron c. Proton d. Electron*** 3. Who provided

80. ## Algebra

Six times a number less ten is equal to two times the same number plus four.

81. ## maths

the first termn of an exponential sequence (GP) is greater than the fourth term by 13.5 and the fourth is greater than the third by 9.Find:the common ratio and the first term.

82. ## Calculus

Find the equation in standard form for the line that satisfies the given requirements. horizontal line through (−8, −9)

83. ## Math

jeff has 12 more toy cars than toy trucks. In all, he has 19 toy vehicles. How many toy trucks does Jeff have?

84. ## Geometric Progression.

The fifth of an exponential sequence (GP) is greater than the fourth term by 13.5 and fourth term is greater than the thrid by 9.Find:common ratio and the first term.

85. ## Math

Henry needs to cut a 4 2/3 foot board into 5 equal pieces. How long was each piece?

86. ## Math

Katie is baking cookies. She only wants to make 3/4 of the recipe. She needs to take 3/4 of the 2/3 cup of sugar. How much sugar does she need?

87. ## PSYCHOLOGY

1. ___________ is a method of treatment for mild to moderate cases of emotional and mental disorders that uses a process of patient discovery. (1 point) 2. The work of __________ is the foundation of psychotherapy. (1 point) 3. Psychotherapy is a(n)

88. ## Math

together Paul and Jack and \$72 twice as many cars as if she's three cars how much did they charge to watch explain how you know.

89. ## @ nathan

Cheaters are not welcomed on Jiskha. You've been banned from posting for asking for answers.

asked by Ms. Sue
90. ## science

A weight of 10N is supported by 2 strings AB and AC tied to a horizontal support.The strings makes an angle of 30 degree and 60 degree inclined respectively to the horizontal support.calculate the tention T1 and T2 in the strings

91. ## Math

Put the fractions in order from smallest to largest 3/5 1/8 5/10

92. ## integrated science

Two individuals on roller blades push off each other.One weighs 45 kg and the other weighs 40 kg.who will travel further and why.Is the force balanced or unbalanced

93. ## Math

Tricia spent \$12 to rent skates. She rented them for 4 hours. What number sentence states how much it costs to rent skates for one hour?

94. ## science

what is the relationship between mass and gravitational potential energy?

95. ## Math - Algebra 1

A field must be fenced in. There is 212 yards of fencing material to be used. What should the dimensions of the enclosed area be to ensure that is has the largest area possible? (system of equations) Dimensions_____________________

96. ## math geometry

Find the area of the triangle defined by the coordinates (-3, -4), (-7, 0), and (-3, 4).

97. ## Trig

2+1/3tan(theta)=2 I know that tan=0 0,180 But i don't know how to figure it out. Please help.

98. ## financial literacy

A college professor's compensation package includes the total cost of a \$350-per-month health insurance plan, the total cost of a \$45-per-month life insurance plan, and a salary of \$65,000 per year. What is the yearly value of the compensation package?

99. ## math

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks. Ella is starting a business selling handmade necklaces. She has decided to invest an initial amount of \$57 for advertising, and materials cost \$7

100. ## Science

A car is moving down a straight road.Suddenly a cat jumps in front of the car.The driver slams on the breaks and the passenger goes flying forwards.Why?What law of Newton applies to this situation?

101. ## trig

Reiny 2+1/3*tan(theta)=2 How do you get 0? Thanks for your help.

102. ## Science

A football player makes a tackle to stop a touchdown.What will happen to the offensive player?What law of motion applies and why?

103. ## chemistry

2. 50.0 mL of 1 M NaOH(aq) and 50.0 mL of 1 M HNO3(aq), both initially at 18.6°C, were mixed in a Styrofoam cup calorimeter. The temperature of the solution rose to 25.4°C. How much heat was released? Assume that the heat capacity and density of the

104. ## physics

A football player makes a tackle to stop a touchdown.What will happen to the offensive player?What law of motion applies and why?

105. ## physics

A car is moving down a straight road.Suddenly a cat jumps in front of the car.The driver slams on the breaks and the passenger goes flying forwards.Why?What law of Newton applies to this situation?

106. ## Math

A soccer field has a perimeter of 26 yards.if the width is 8 yards,how long is the length?

107. ## Calculus

y = 2 cos(5πx) .... whats the period?

108. ## Specify a Period on the graph

y = 2 cos(5πx) .... whats the period?

109. ## Standard Form

Find the equation in standard form for the line that satisfies the given requirements. passing through (1, 5) and (2, 6)

110. ## Standard Form

Find the equation in standard form for the line that satisfies the given requirements. horizontal line through (−8, −9)

111. ## find the equation

Find the equation in standard form for the line that satisfies the given requirements. slope −3, x-intercept (8, 0)

112. ## Physics

A bicyclist starts from rest and accelerates at 4 m/s^2 for 3 seconds. The cyclist then travels for 20s at a constant speed. How far does the cyclist travel? I got 138 m but I'm not sure if I'm right?

113. ## chem

Using the equation 2H2 + O2 ==> 2H2O, determine how many grams of water is produced when 29 moles of oxygen is consumed

114. ## Find the equation of the perpendicular line

Find the equation of the perpendicular line passing through the midpoint of the line segment connecting (−2, 7) and (7, −1).

115. ## math

Martha read 1/6 of her book on Saturday and 5/12 of her book on Sunday how many more pages do she have to read

116. ## chem

Using the equation 2H2 + O2 ==> 2H2O, determine how many grams of water is produced when 29 moles of oxygen is consumed

117. ## Math

3+1/4*cos(theta)=13/4 Please help really confused. I was given the answer as 1 but how do I figure it out. I know you are suppose to subtract 3 from both sides but how do i do that with the 13/4?

118. ## Physics

Two parallel plates, each charged equally and oppositely to the other, are separated by 3.6000 cm. A proton is let go from rest at the positive plate's surface and, at the same time, an electron is let go from rest at the negative plate's surface. What is

119. ## Math

What is the greatest odd number less than 250 ? Exlplain how you know.

120. ## physics

The positive and negative plates of a parallel-plate capacitor have an area of 1.05 cm by 1.05 cm. Their surface charge densities are +1.00×10-6 C/m2 and -1.00×10-6 C/m2, respectively. A proton moving parallel to the plates enters the middle of the space

121. ## Geometry

If each of the sides of an isoceles triangle is 5 x the size of the baseline and the perimeter of the triangle is 121 cm, how many centimeters is each of the sides of the triangle? I have the sides at 50 cm and the base at 21cm. ?

122. ## Math

2:x and 12:18 identify the value of x that makes each pair of ratios equivalent A.(3) B.4 C.6

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123. ## Math

Which numbers make the equation true? 47+___>70 a.10 b.20 c.30 I am extremely confused on how to assist my daughter in solving this, due to this being common core math. Could you please direct me on how to solve problems such as this? than you in advance

124. ## Math

There are 44 students and 6 adults attending a field trip to an art museum. What is the ratio of adults to children? 1.44:6 2.(6:44) 3.6:60 4.44:60

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125. ## Chemistiy

Arrange these acids from weakest to strongest: HClO2, HCN, HF, HCl Ik the order is : HCN < HF < HClO2 < HCl but how exactly does one come to that conclusion with no necessary given information (Ka values?). Is there a way to memorize? or a trick? to know

126. ## math

find each product mentally.12*4 3/4

127. ## Algebra

A box contains blue and purple pens. There are 6 less than triple the number of blue pens as purple pens. A blue pen costs 20 cents and a purple pen cost 35 cents. The total value of all the pens is \$37.90. How many of each colour pen is their?

128. ## Math

On a scale drawing, the scale is 1/4 inch = 1 foot. What are the dimensions on the scale drawing for a room that is 18 feet by 16 feet?

129. ## Math

which of the following ratios are equivalent 5/20? Choose all that apply. A. (1/4) B. 1/5 C. (20/100) D. 25/100

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130. ## Math

There are 3 boxes of tangerines. Each box has 93 tangerines. The tangerines will be divided equally among 9 classrooms. How many tangerines will each classroom get?

131. ## math

find each product mentally 6*4.4

132. ## Math

Find the value that makes the pair of ratios equivalent 1. 8 2.(7) 3.6 4.5

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133. ## math

Leah has two same size rectangles divided into the same number of Equal parts. One rectangle has 1/3 of the parts shaded and the other has 2/5 of the parts shaded. What is the least number of parts into which both rectangles can be divide?

134. ## medical termonolgy

what are advantages and disadvantages of using medical terminology?

135. ## Physics (9th)

Sasha is driving straight and notices an antelope in the road a ways off. Determine the stopping distance (from the time she sees the antelope) for her car with an initial speed of 95 km/hr and an acceleration of -4.0 m/s2. Sasha's reaction time to start

136. ## economics

given the following information, calculate nominal GDP, real GDP, and the percentage increase in year two. Be sure to label the answers. Describe what is taking place in the economy. In the base year, 10 new cars were sold at \$7,000 each, 20 new office

137. ## 6th Grade Social Studies

What was the main effect of the repeated exiles of the Jews?

138. ## physical science

How much heat is absorbed by a 30g iron skillet when its temperature rises from 24oC to 93oC? Joules do i addition everything?

139. ## Science

The fruit of an oak tree is called an acorn. You observe a squirrel gathering and burying acorns. Several months later, you observe an oak seedling growing in the area where the squirrel buried an acorn. What conclusion can you draw about oak tree

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140. ## Physics

The output voltage and current of a transformer are determined by the A. number of turns in the primary and secondary coils. B. ferromagnetic material of the rings connecting the coils. C. strength of the DC current in the primary coil. D. direction of the

141. ## Physics

Sasha is driving straight and notices an antelope in the road a ways off. Determine the stopping distance (from the time she sees the antelope) for her car with an initial speed of 95 km/hr and an acceleration of -4.0 m/s2. Sasha's reaction time to start

142. ## physics

a brick is dropped form the roof of a building. On the way down it passes a 2m high window and is observed to pass from the top to the bottom of the window in 0.25s. (a) How fast was it moving when it passed the top of the window? (b)How far below the roof

143. ## Econ

Washington's Production Possibilities Table (in tons) Product: A B C D E F Apples: 40 32 24 16 8 0 Bananas: 0 4 8 12 16 20 Oregon's Prudction Possibilities Table (in tons) Product: A B C D E F Apples: 75 60 45 30 15 0 Bananas: 0 5 10 15 20 25 Based on the

144. ## Math

A dessert recipe calls for2 1/2 cups of milk how. Many cups of milk are needed for 8 servings?

145. ## Teacher aide

Please help me does anyone know the questions for curriculum content in teacher aide?

146. ## Physics

Charge +Q = +7.10 nC is uniformly distributed along the right half of a thin rod bent into a semicirle of radius R = 3.60 cm, while charge −Q = −7.10 nC is uniformly distributed along the left half of the rod. What is the magnitude and direction of the

147. ## Math

WebWork = 28% Four exams = 6% each A final = 28% Labwork = 20% Suppose you obtain 100 percent credit on all WeBWorK assignments for this class. What is the minimum average percentage on the exams and labwork that will still get you an A in this class?

148. ## Chemistiy

Sb forms more than one type of ion. List two possible ions this atom forms and explain why they occur. Would it have to do something how in its electron configuration it ends of with 5p^3 meaning it is half full and half empty? Help me out please i am

149. ## English

1. Violence on television is more of a recent problem. (What other similar expressions can we use instead of 'more of'? Do you use 'more o' often?) 2. There is only so much (that)you can read in magazines and newspapers. (Can we insert 'that' in this

150. ## Math

Mrs.Johnson baked 2 dozen cookies. Two third of the cookies were oatmeal . How many oatmeal cookies did Mrs. Johnson bake

151. ## physics

How much heat is absorbed by a 30g iron skillet when its temperature rises from 24oC to 93oC? Joules do i addition everything?

152. ## Math

The dressmaker has 3/8 yard of fabric. She needs a total of 3/4 yard for a vest. How much more fabric does she need?

153. ## Math

How do you find P if A=1/2a+P, and you have both the values of a and A?

154. ## Pre-Algebra

I need help on a word problem because it doesn't have enough numbers to work with. So here it is: There are 19 animals in the barn. Some are geese and some are oxen. There are 56 legs in all. How many of each animal are there? So, for the first equation, I

155. ## English

Like, I know someone that has to watch TV every night before he sleeps in order to wind down. ------------------------ Q1. Does 'Like' mean 'You know' or 'Guess what'? Q2. Does 'wind down' mean 'relax'? Dow you use those expressions frequently?

156. ## Math

The cost of producing x units of a product is given by C(x)=800+120x−120ln(x),x≥1. Find the minimum average cost, which is defined as C(x)/x (the total cost divided by the number of units). Minimum Average Cost =

157. ## Math

A company runs food service concessions for sporting events throughout the country. Their marketing research department chose a particular football stadium to test market a new jumbo hot dog. It was found that the demand for the new hot dog is given

158. ## Math

Plot points on the number line to represent all values that round to 500 when rounded to the nearest hundred and 450 when rounded to the nearest ten

159. ## Pre-algebra

ughhhhhh! PA is so hard! my teacher is constantly comparing us to the regular math saying that if we can't figure it out then we should ask them. What does that even mean? we are more advanced! anyway... this website helps so much. Im definitely going to

160. ## Math

Where do I insert parentheses to make this number sentence true: 6 X 4 - 2 x 5 + 6 / 2 =16

161. ## Calculus

A manufacturer buys \$280,000 worth of machinery that depreciates linearly so that its trade-in value after 10 years will be \$30,000. Express the value of the machinery (V) as a function of its age (t).

162. ## Physics

Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 17 m/s at an angle 34 degrees; with respect to the horizontal. Sarah catches the ball 1.5 meters above the ground. 1) what

163. ## chemistry

Ethanol has an enthalpy of evaporation of 38.6kJ/mol, and a normal boiling point of 78.4oC. What is the vapor pressure of ethanol at 15oC? Hint: the normal boiling point is when the vapor pressure reaches 1 atm. Use, . Pay attention to use right units

164. ## Physics

If the current in a wire is directed upward, what is the direction of the magnetic field produced by the current? A. in the same direction as the current B. in the opposite direction to the current C. clockwise D. counterclockwise I think it is A,is that

165. ## Calculus

Find all the values of (x) in the interval [0, 2Pi], such that sec^2 (x) = 4

166. ## Math

Factor and find all zeros. One factor has been given. f(x)= x^3+9x^2+23x+15; x+5

167. ## ELA

Underline the verb or verb phrase in each sentence and then identify whether it is an action verb or a linking verb. 1.) The hard-working plumber was early. 2.) Those secretaries appear very busy this afternoon. 3.) The cab driver was driving extremely

168. ## Calculus

Compute F'(-4) where F(x) = x^3 + X^2 (using the definition of the derivative)

169. ## 6 grade math

Coordinates are of the shape :of part a and b show these coordinates : (-2,-4), (-2,4), (2,4), (2,'4) Problem c: should I use a new figure or I can continue with same shape as part a and b . So how do I enlarge the shape: Draw a figure that is enlarge by a

170. ## Calculus

Find two non-intersecting intervals where f(x) +12x^4 + 50x^3 + 80x^2-100 has at least one root. Justify your answer.

171. ## Math

chris cuts boards that are 2/3 feet long. He has a 7/9 foot long board of wood. How many yards can he cut?

172. ## Econ

If the rate of inflation is 4% per year, how long will it take for prices to double?

173. ## Math

Simplify: (8-5)^2 x 3-8 divided by 2

174. ## Math

Factor and find all zeros. One factor is given. f(x)= 6x^3+7x^2-1; 2x+1

175. ## Math

Use the remainder theorem to evaluate !@#\$%^&), then determine if k is a factor. f(x)=10x^3-41x^2+32x+20; 5/2

176. ## Math

Barbara is tiling her craft room floor with square tiles. She wants 6/10 of the square tiles be red. If she uses 18 red tiles,how many square tiles will be used to cover the floor?

177. ## Chemistry

How many grams of AlCl3 are produced when 53.0 g of Al reacts?

178. ## physics

Two cars (A and B) of mass 1.1 kg collide. Car A is initially moving at 18 m/s, and car B is initially moving in the opposite direction with a speed of 9 m/s. The two cars are moving along a straight line before and after the collision. (Enter the

179. ## Chemistry

How much energy, in calories, does it take to convert 20.0 grams of solid water, at 0.0 degrees C, into liquid water, at 0.0 degrees C? (The enthalpy of fusion for H2O is 1.44 kcal/mol)

180. ## Math, Statistics

If P(A)=.3 and P(B)=.45 find… P(A or B) if A and B are 1)mutually exclusive & 2)independent. Also, I need help understanding what independent and mutually exclusive means and what that does.

181. ## algebra

A ball is dropped from a height of 30 feet and allowed to bounce until it comes to arrest each time the ball bounces it rebounds to 3/5 of its previous high after which bounce is the boss hi 10.8 feet. I understand the height gets shorter but is there a

182. ## maths

In a triangle ABC,D and E are the mid points of BC and AD respectively.prove that the area of triangle ABC is four times to the area of triangle ABE

asked by Mahaboob Basha
183. ## physics

An unstable nucleus with a mass of 18.0 ✕ 10-27 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.0 ✕ 10-27 kg, moves along the positive y-axis with a speed of 9.0 ✕ 106 m/s. Another particle, of mass 7.4 ✕

184. ## Chemistry

What intermolecular forces are responsible for neoprene's stretchiness?

asked by AP Chem!
185. ## CHEMISTRY

The enthalpy of cimbustion for Octane vapor, C8H18, a component of gasoline, is -5512.0kJ/mol. a. Write the equation for the combustion of Octane, including the energy term. b. Calculate the energy change when 45g of Octane burn. c. Calculate the energy

186. ## Math 11 Foundations

Last year, a local hockey association charged \$10 a ticket and averaged 12000 in attendance in its 2000 capacity area. The committee calculated that for every \$0.50 decreases in the price of the ticket, there would be 100 more tickets sold. what is the

asked by Jason Keller
187. ## English

What is the meaning behind this quote: you've gotta dance like there's nobody watching love like you'll never be hurt sing like there's nobody listening and live like it's heaven on earth

188. ## writing

What is a example of a onomatopoeia for a butterfly?

189. ## Math 11 Foundations

Sanchez has a garage on his property. He recently purchased a tractor and cannot fit in his garage. To store is new purcahse, he deices to attach a three-sided fence to one of the walls of his garage in order to save material. If Sanchez has 60 meters of

190. ## Math 11

You've been asked to assits with a grade-4 class who will be selling small boxes of wildflower seed mix for Mother's Day. You've been given a stack of construction paper 15cm by 20cm. You must instruct the calss to cut identical squares from each corner,

asked by Kristie Dexter
191. ## Math 11

Cecile took a ferry to corss the St.Laurent River rom Sept-Iles, PQ to Matane,PQ a distance of 175km. She relizes that it's the same road distance from her home to her cottage in Godbout, PQ. By road, she averages 60km/h faster than the ferry and takes 5 h

asked by Jackson Welch
192. ## Math

Roger needs to fill his exmpty fuel carried for an emergency delivery. He has to pumps that can fill the carrier in 2 hours when both used at the same time. Individually, one of the pumps takes 45 mintues less than the other to fill the empty carrier.

asked by Hunter Cox
193. ## mat

A family left their house in two cars at the same time. One car traveled at an average of 7 miles per hour faster than the other. When the first car arrived at the destination after 5 & 1/2 hours of driving, both cars had driven 599.5 miles. If the second