# Questions Asked onOctober 26, 2016

1. ## Math

Starting at 1:00 p.m., the temperature changes −4 degrees Fahrenheit per hour. Write and solve an equation to find how many hours xx it will take to reach −1°F.

2. ## Math

The perimeter of the parallelogram is 102 feet. Find m. Write your answer as a decimal or mixed number. The sides of the parallelagram are 3 and 3m

3. ## Science

What distance was used to define the astronomical unit (AU) A. the average distance across the sun, its diameter B. the average distance from the sun to mercury, the closest planet C. the average distance from the sun to earth, our home planet D. the

4. ## Government

Which of the following is a true statement about the power of congress? A. Congress may overrule the bill of rights B. Congress may pass any law necessary and proper to carry out it enumerated powers C. Congress may overrule decisions by federal judges D.

5. ## math

Write the number that makes the statement true. 1. 205.5 m = _____ mm (1 point) 205,500 0.2055 20.55 20,550 2. 199.2 km = _____ m (1 point) 199,200 19.92 19,920 0.1992 Use benchmarks to estimate the sum. 3. + (1 point) 2 1 0 Estimate the difference. 4. 6

6. ## History

1. How did the Magna Carta affect the power of the English king? A. It had no effect on the king's power. B. It closely linked the king's power to the power of the nobles. C. It weakened the king's power. D. It strengthened the king's power. 2. What was

7. ## math

Last Saturday, Jay spent 6 hours playing games, studying and talking with his friends. He spent 2/5 of the time paying games and 1/2 of the time studying. How many minutes did he spend talking with his friends?

8. ## MATHS 2

If x+y=45°, prove that {(cotx+1)(coty+1)}/{cotx×coty}=2 Please help me in this TRIGONOMETRY problem. From the topic - TRIGONOMETRY Ratios of compound angles

9. ## alg

Which of the following lists of ordered pairs is a function? A.(2, 4), (3, 9), (4, 16), (5, 25) B.(0, 2), (4, 2), (0, –4), (4, –2) C.(1, 1), (2, 3), (1, 5), (4, 7) D.(2, 4), (–2, 4), (3, 9), (–2, –4)

10. ## Algebra 1

Choose the correct solution in roster form. N is the set of natural numbers that are factors of 12. {1, 2, 3, 4, 6} {1, 2, 3, 4, 6, 12}** {1, 2, 3, 4, 5, 6, 8, 12} {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

11. ## History

How did geography shape civilizations in ancient India and China? A) they built cities away from areas prone to flooding and dangerous weather B) they grew along rivers and other bodies of water C) they emerged where mountains and other natural barriers

12. ## Algebra 1

Suppose U = {1, 2, 3, 4, 5, 6, 7, 8} is the universal set and P = {2, 4, 6, 8}. What is P' ? {2, 4, 6, 8} {1, 2, 3, 4, 5, 6, 7, 8} {1, 3, 5, 7}** {1, 3, 5, 7, 8}

13. ## Algebra

Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros. 3-i,sqrt2 f(x)=??

14. ## Math

Use the circle graph to determine how many hours per day Becky spends on each activity. School=25% Eating=10% Sleep=40% Homework=10% Freetime=15% I think my answer would be 25/100=x/1 4 hours Can you please check my answer,Please help me I am a little

15. ## Core World History

Why did independent Greek city-states develop instead of a single state covering the entire Greek peninsula?

16. ## 7th American History

Can someone help me please? I have to summarize why John Adams was not reelected in the election of 1800. I know that he wasn't because he declared war on his first term and Thomas Jefferson was a popular candidate, but are there any more reasons?

17. ## Permutations

Solve for n given: nP2 = 110

18. ## Chem 2

You are instructed to create 600. mL of a 0.56 M phosphate buffer with a pH of 7.6. You have phosphoric acid and the sodium salts NaH2PO4, Na2HPO4, and Na3PO4 available. (Enter all numerical answers to three significant figures.) H3PO4(s) + H2O(l)

19. ## ab calculus

Air is being blown into a spherical balloon at the rate of 75 cm3/s. Determine the rate at which the radius of the balloon is increasing when the radius is 28 cm.

20. ## Physics

A ball is tied to a string and whirled in a horizontal circle at a constant 4 revolutions per second. Categorize the following according to whether they are 0 in value, constant in value, or change: v: linear speed (scalar) v: linear velocity (vector) ar:

21. ## math

Which of the following statements best describes the effect of replacing the graph of y = f(x) with the graph of y = f(x) − 11? answer choices: The graph of y = f(x) will shift up 11 units. The graph of y = f(x) will shift right 11 units. The graph of y

22. ## Math

Hank has a board that is 6 2/3 feet long. He cuts the board into equal pieces that are each 5/6 foot long. How many 5/6 foot pieces can Hank cut from the board?

23. ## Math

A monument has a base and a statue. The base is a rectangular prism that measures 4 feet by 6 feet by 2 feet. The statue is a cube with edges that are 2 feet long. What is the volume of the monument?

24. ## math

Change from rectangular to cylindrical coordinates. (Let r ≥ 0 and 0 ≤ θ ≤ 2π.) (a) (3, −3, 2) (b) (−2, −2sqrt3, 5)

25. ## Spanish

Instructions: Modifique el párrafo por cambiar las palabras entre comillas al tiempo FUTURO. Modelo: Mi familia ‘va a visitar’ a nuestros abuelos este verano. Mi familia visitará a nuestros abuelos este verano. Este año ‘vamos a hacer’ una

26. ## History of Technology

In developed countries, technological advances are most closely related to: A. cultural philosophy. B. warfare. C. applied science. D. theoretical science. Ans : D

27. ## Physics

Two identical massless springs of constant k = 200N/m are fixed at opposite ends of a level track, as shown. A 5 kg block is pressed against the left spring, compressing it by 0.15m. The block is then released from rest. The entire track is frictionless

28. ## College Calculus

If a ball is thrown vertically upward from the roof of 48 foot building with a velocity of 96 ft/sec, its height after t seconds is s(t)=48+96t−16t^2. What is the maximum height the ball reaches? What is the velocity of the ball when it hits the ground

29. ## AP Chemistry

A typical bathtub can hold 94 gallons of water. Calculate the mass of natural gas that would need to be burned to heat the water for a tub of this size from 59 ◦F to 101 ◦F. Assume that the natural gas is pure methane (CH4) and that the products of

30. ## Aria

If a projectile is shot vertically upward from the ground with an initial velocity of 100 ft per sec, neglecting air resistance, its height s (in feet) above the ground t seconds after projection is given by s= -16t^2 + 100t a) After how many seconds will

31. ## Help on Social Studies please!

Part A: What is the basic independent unit of world politics? a. country b. province c. nation *** d. organization Part B: Which of the following groups is an example of the basic unit you selected in the previous question? a. people who share a common

32. ## Algebra 1

Write the solution to the inequality in set-builder notation. 5r + 8 < 63 {r | r < 11}** {r | r < 15} {r | r < 71} {r | r < 8}

33. ## Math

The transportation departments is resurfacing 12.75 miles of roadways in Navarro County. The crew completes work on a 1/8 mile section of roadway each hour. How many hours will it take to complete the resurfacing project?

34. ## Algebra

Acme Movers charges ​\$280 plus ​\$40 per hour to move household goods across town.​ Hank's Movers charges ​\$75 per hour. For what lengths of time does it cost less to hire​ Hank's Movers? It costs less to hire​ Hank's Movers for times less than

35. ## calculus

A car is traveling west at 67 mi./hr and a truck is traveling south at 59 mi./hr. Both are headed for the intersection of the two roads. At what rate are the car and truck approaching each other when the car is 0.2 mi. and the truck is 0.5 mi. from the

36. ## Physics (Mechanics)

A student of mass M = 62 kg takes a ride in a frictionless loop-the-loop at an amusement park. The radius of the loop-the-loop is R = 19 m. The normal force by the track on the student at the top of the loop-the-loop is N1 = 100 N Find the speed of M at

37. ## query

ruhi spend 30% of her monthly salary on rent transportation and bills in the respective ratio of 7:5:3 if he spends 3560 on transportation how much is her monthly salary

38. ## science

An atom that has the same amount of atoms of each element on both sides of the reaction obeys what law? law of conservation of energy law of conservation of mass law of conservation of temperature law of conservation of atoms I know the Answer law of

39. ## Physics

Three charges +2q, -q and -q are placed at the vertices of an equilateral triangle. What is the electric field and the potential at the circumcenter of the triangle?

40. ## Science HELP!!

Compare and contrast the roles of genetic factors and local conditions in determining physical traits Contrast dominant, recessive, codominant, and incomplete dominant traits and give examples of each Summarize the process of sexual reproduction and

41. ## algebra

Find the perimeter of the triangle whose vertices are the following specified points in the plane? (0,-3), (-2,1) and (-4,6)

42. ## american history

what event led to the first shots being fired at the battles of lexington and concord

43. ## Calc

You plan to paint a sphere of radius 200 cm with a coat of pain .2 cm thick. Use differentials to approximate the amount of paint that is needed. Use the equation for the volume of a sphere.

44. ## Finance

You have been hired as a consultant for Pristine Urban-Tech Zither, Inc. (PUTZ), manufacturers of fine zithers. The market for zithers is growing quickly. The company bought some land three years ago for \$1.30 million in anticipation of using it as a toxic

45. ## castor financial math

Find the interest in dollars and the proceeds for the following problem. Choose the correct answers. Tim Tele received a \$380 discount loan to purchase a DVD player. The loan was offered at 18% for 60 days. Find the interest in dollars and the proceeds for

46. ## statistics

In studying the responses to a multiple-choice test question,the following sample data were obtained. At the .05 significance level, test the claim that the responses occur with the same frequency. show work for test statistic & p. response a b c d e/ 12

47. ## Physics

A 3 kg object initially at rest is acted on by a non-constant force which causes it to move 3 m. The force varies with position as shown in the figure. a) How much work is done on the object by this force? b) What is the final speed of the object as it

48. ## math

There are 24 students in a class. If 1/4 students wear glasses. How many students do not wear glasses? I multiply 24(1/4)=6 so 24-6=18 so is 18 students correct?

49. ## algebra

basic cellphone plan cost \$20 per month for 60 calling minutes. Additional time costs .40 per minute. The formula gives the monthly cost for this plan C, for x calling minutes, where x > 60. How many calling minutes are possible for a monthly cost of at

50. ## physics

A box is being accelerated across a rough, level surface. A force is being applied to the box in an upward and a rightward direction (as shown below). This force makes an angle of 30 degrees with the horizontal. The force of friction experienced by box

True or false If y =ax+b then DeltaY/DeltaX = dy/dx If Y= x+c then dy = dx If you can measure the length and width of a rectangle correct within .1 cm, then the calculated area will be correct within .1 cm as well. I have True for the first 2 and false for

52. ## Math

You must scuba dive to the entrance of your room at Jules' Undersea Lodge in Key Largo, Florida. The diver is 1 foot deeper than 2323 of the elevation of the entrance. What is the elevation of the entrance?

53. ## Math

The temperature at 6:00 pm was 33°f.over the course of the day, the temperature decreased 5.5°F per hour. What was the temperature at midnight?

54. ## Math

On a random day in the spring 88% of the students are present at school.If there are 528 students presents how many total students are enrolled?

55. ## algebra

Write an algebraic expression for the given quantity. Let x represent the unknown value. a value increased by 6

56. ## Chemistry

Standardization of iodine solution was prepared using 10.0 mL of a standard, 1.00 mg/mL, ascorbic acid solution. Titration with the iodine solution required 35.80 mL to reach the end point. What is the molarity of the iodine solution?

57. ## cooking appliance

the time required for epoxy resin cement to set is about

58. ## Math Test

8.) Which one of these is a irrational number? *1/32 *3.141592*** *Square root of 16 *-22 My answer: ***

59. ## physics

Calculate the component of a force of 200N at a direction of 60degre to the force

60. ## Calc

Find the particular solution that satisfies the differential equation and the initial condition. f '(s) = 10s − 4s3, f(3) = 7 & f ''(x) = 6, f '(2) = 14, f(2) = 19

61. ## Chemistry

Note- I do not want the answers. I just need to know how to set up each.. The combustion of isopropyl alcohol (Molar Mass=60.1 g/mole) is described by the following balanced equation: 1 C2H8O + 9 O2 (g) -> 6 CO2 (g) 8H2O (l) + 4012 kJ of heat energy a) How

62. ## oceanography

One (1) kilogram of seawater (35‰) contains __ grams of dissolved salts and grams of water?

63. ## science

Urea forms a ideal solution in water. Determine the vapour pressure in an aqua solution containing 10 percent bymass at 40degree Celsius

64. ## Mathematics

a retailing entrepreneur sells sophisticated running shoes whose weights are normally distributed with mean of 12 grams and a standard deviation of 0,5 grams. (a) what is the probability that a shoe weighs more than 13 grams (b) what must be the standard

66. ## Life Management

"I'M RIGHT!" Casey and Anne are arguing over whether to go to a movie or go bowling. Anne thinks bowling is a bore and she doesn't want to go. Anne doesn't like sports activities of any kind, and therefore, feels Casey should just do what she wants to do.

67. ## Physics

How much work must be performed by a hand or other such agent to move the 8kg block very slowly 10 cm to the right if the attached spring was initally relaxed? Let k = 200 N/m and mK = 0.5. Show the equation and the plug the numbers into the equation and

68. ## algebra

basic cellphone plan cost \$20 per month for 60 calling minutes. Additional time costs .40 per minute. The formula gives the monthly cost for this plan C, for x calling minutes, where x > 60. How many calling minutes are possible for a monthly cost of at

69. ## math

On the blueprint of a house, 24 millimeters represents 5 meters. The length of the living room is 30 millimeters on the blueprint. What is the actual length of the living room?

70. ## Science

If a female dog has her tail cut off in an accident. A few months later, she has eight puppies. How many puppies were probably born with tails?

71. ## Social studies 9

Imagine a political candidate, Maria Gutierrez, Gutierrez has appeared on television as part of a multi-candidate debates. However, she is also invited often to discuss and debate views by herself on a popular news channel. 3. How will the news channels

72. ## oceanography

14C has a half-life of 5,730 years. If we start with 70 grams of 14C at time zero how many grams of14C will be left after three half-lives?_________

73. ## PSU

A 2.3kg stone is thrown from ground directly upward. the maximum height reached by the stone is 45m. Neglecting air resistance, a) with which initial speed was the stone thrown? b)what is the flight time of the stone until it hits the ground again? c)what

74. ## algebra

if sin alpha is 0.28° where 0° is less than or equal to alpha less than or equal to 90°, evaluate cos alpha, tan alpha, sec alpha, cosec alpha and cot alpha. please help, it's urgent.

75. ## Algebra

A fitness club offers two membership options. The first option has an initial fee of \$50 and then charges \$30 per month. The second option has no initial fee but charges \$40 per month. After how many months, x, will the first option be a better value than

76. ## cooking appliance

a digital clock on small cooking appliance keeps time by

The measurement of the radius of a circle is 16 inches, with a possible error of .25 inches. (Use differentials to approximate the possible propagated error and the percent error. Propagated error= 1.6% Percent error= 4.6%

78. ## Calculus (AC)

Steve, you've been an amazing help. Thank you so much. This is the last question I need checked. Solve ∜82 using differentials. I got 3.00926

79. ## Physics

Since moment of inertia is a scalar quantity, a compound object made up of several objects joined together has a moment of inertia which is the scalar sum of the individual moments of inertia. A) A wooden cylinder has mass m and radius R. To be used as a

80. ## Math

Every Wednesday is salad bar day at Ashley's school. The most popular ingredients are cherry tomatoes, cucumber slices, and shredded carrot. Last Wednesday, out of the 27 students in Ashley's class- 14 took carrot 13 took cucumber 16 took tomato 8 took

81. ## Math

I need two 12x23 feet of carpet for my basement at \$6.00 per square foot. How much will this cost?

82. ## math

Stanley has 3 times as much savings as Chole. Aaron has \$38 less than Chole. They have a total savings of \$2822. How much savings does Aaron have?

83. ## math

(MC) If the compound interest on \$1000 for two years at 9% p.a., payable half-yearly is \$x, find x. A) 1000x9/100x2 B) 1000(1+9/100)⁴ C) 1000(1+4.5/100)⁴ D) 1000(1+9/100)²-1000 E) 1000(1+4.5/100)⁴-1000

84. ## chem

the relative molecular mass of molecule of chlorine is 72.which properties of the atoms in this molecule are the same

85. ## algebra

company A charges \$110 for the truck and \$55 per hour for the movers company B charges \$100 for the truck and \$ 60 per hour for the movers create a cost equation for each company where y is the total cost and x is the number of hours of labor

86. ## Cal

You plan to paint a sphere of radius 200 cm with a coat of pain .2 cm thick. Use differentials to approximate the amount of paint that is needed. Use the equation for the volume of a sphere. So far I have C=81, X=82, f(x)= x^1/4 and C-x = 1 (If correct)

87. ## Calc

Use spherical coordinates. Evaluate Triple integral SSSE where E lies between the spheres x^2 + y^2 + z^2 = 25 and x^2 + y^2 + z^2 = 49 in the first octant.

88. ## physics

The work that a force does by acting on an object is equal to what? 1) the product of force (in the direction of motion) and distance and is negative if the force and motion are in the same direction 2) the product of force (in the direction of motion) and

89. ## Chemistry

What is the mass of water produced when 5 moles of hydrogen burn in the presence of excess oxygen?

90. ## algebra

Find the pattern and fill in the missing entries. in(x) | out(y) | 23 2 | 8 -2 | -4 8 | 26 0 | ? ? | 302 1.5 | ?

91. ## Chemistry

The solubility of KI in ethyl alcohol is 2.00 grams of KI in 100.0 grams of this alcohol. From this information, calculate the molarity of this solution.

92. ## Maths

Find a Square root of 7.66 correct to two decimal places

93. ## Maths

Given That The Area Of Triangle AQR is 32cm^2 such that AQ=8,AB=14,AR=10 and CR=7.2,calculate the area of triangle ABC.Plz! Answer My Question And Its A Homework!

94. ## Math

Use an example to describe the multiplicative relationship between two equivalent ratios

95. ## Math

Each student receives the same number of pencils and the same number of notebooks. This year she gave out 96 pencils and 72 notebooks. Which is the greatest number of students that can be in Ms. Thomas’s class this year?

96. ## Physics

A ball of mass 8 kg moving with a speed of 2m/s and rebounds with the same speed.Determine the impulse experienced by the ball. (a)20.0kg/m (b)10.0kg/m (c)0.01kg/m (d)1.3kg/m

97. ## Physics

A 150 kg body is at rest and covers the constant force needed to impart a velocity of 8m/s to it in 5s.

98. ## Spanish

Jaylnn's Spanish Literature post.

Find the value of the following expression: (2^8 ⋅ 5−5 ⋅ 19^0)−2 ⋅ (5-2/2^3)^4 ⋅ 2^28 (5 points) Write your answer in simplified form. Show all of your steps. (5 points) Please somebody help me I'm so confused. I know I'm supposed to use PEMDAS

100. ## maths

if platonic solid has 8 vertices and 12 edges calculate the number of faces

101. ## Physics

A bullet is fired with an initial speed of 200 m/s. If a target is 500ft away, at what angle should the rifle be raised in order to hit the target?

102. ## Calculus

A particle moves according to the equation of motion s(t)=t^2-2t+3 where s(t) is measured in feet and t is measured in seconds. Find the total distance traveled in the 3 seconds.

103. ## Science-physics

A bottle weighs 35g when empty,95g when filled with water and 119g when filled with an organic liquid. What is the capacity of the bottle: A-60cm cube B-84cm cube C-130cm cube D-154cm cube

104. ## physics

Sam and Sue are running side by side in a marathon. They are running at a constant velocity of 10 km h . What is Sue's relative velocity to Sam? A) 0 km/h B) 5 km/h C) 10 km/h D) 20 km/h

1) The measurement is 15.5, the tolerance is 5. Whats the precision, uncertainty, range, nominal value and precent error? 2) The measurement is 14.5, the tolerance is 6. Whats the precision, uncertainty, range, nominal value and percent error? 3) The

106. ## English

Why was Span One unique? ( The Prisoner Who Wore Glasses )

107. ## Biology

In which type of cell does a cell plate form during cytokinesis? a. in plant cells b. in animal cells c. in plants and animals d. in all cells answer: d

108. ## Statistics

The Villopolis Parks Department has just installed 1900 new lightbulbs with an expected mean lifespan of 66 months and a lifespan standard deviation of 6 months. Assuming normally distributed bulb failure, how many bulbs will need to be replaced after 56

109. ## Physics (Mechanics)

A 905 kg car moves in a circle of radius 13.1 meters in a flat parking lot. If the car can travel at 9.1 m/s without slipping, what is the force of friction between each tire and the parking lot? What is the coefficient of friction between each tire and

110. ## Math

The first pattern of triangles it uses 4 matches ( 3 matches for build a triangle and 1 matches for connected to other triangles). a)Find the number of triangles if there are 100 matches? b) write the formulas

111. ## Math

How many numbers between 100 and 200 can be expresssed as powers of 2? I have trouble with powers but I'm an A math student.

112. ## Math

keith went to the candy store and bought 2/6 of a pound of candy.8/10 of keiths candy was chocolate. how.many pounds of chocolate candy did keith buy?

113. ## pre cal

find B in [0,pi] and real number C such that cot theta= C tan(theta-B)

114. ## Science

A sky driver jumps out of a plane and as he fall he has acceleration of 9.8 m/s squared. How many seconds will it take to reach a speed of 28.5 m/s?

115. ## Math

1. Is square root of negative 10 irrational or rational? 2. Is 2.79797979... irrational or rational? I'm not very good at identifying irrational and rational numbers at least I tried too. 1. irrational 2. rational

116. ## Math

Find the number of foul shots Ryan made if he made 60% of the total shots he took I am not sure how to set up the problem

117. ## Math

What is 6th to the 7th power?

118. ## Chemistry

How to find mmol? this is for dilantin by multistep synthesis lab. using 350 mg of benzoin = mmol? using 160 mg NH4NO3 = mmol?

119. ## Math

Which of the following equations has an infinate number of solutions? A. 3x-3=-4x B. 2y+4-y=16 C. 7x+5=4x+5+3x D. 6y-2=2 (y-1) Is it D

120. ## math and science for Young children

Lev vygotsky a contemporary of jean Piaget differed from Piaget in that

121. ## Financial Accounting

On March 31 a post closing trial balance was completed On April 4, the business purchased a new truck on account. The residual value is \$2400, and the estimated useful life is 5 years. How do I enter this information into a general journal? Do I even need

122. ## maths

x sells an article to Y at a profit. Y then sells it to Z for \$60 at a profit of 20%. If X had sold the article directly to Z for \$60, how much MORE profit would he have made? A) \$10 B) \$12 C) \$48 D) \$50 E) It cannot be found.

124. ## Algebra

Solve the following equation: 9z^2+34=36z The solutions are:

125. ## Algebra

What is the solution to a two-variable equation? What are the ways to represent solutions to a two-variable equation?

126. ## Chemistry

20cm3 of 0.1m sulphuric acid was required to react with 50.0cm3 of a solution of sodium hydroxide

127. ## math

Find the area of a circle of radius: a. 7cm b. 14cm c. 10.5 Use pi= 22/7.

128. ## Physical Science

A bullet is fired with an initial speed of 200 m/s. If a target is 500ft away, at what angle should the rifle be raised in order to hit the target?

129. ## science

the volume of 50gram of a substance is 20centimetercube if the density of water is 1gram/centicentimetercube will the object float or sink

130. ## motor driven small appliance

vacuum strength is rated in terms of

131. ## Algebra

Find the pattern and fill in the missing entries. In (x) out (y) 23 2 8 -2 -4 8 26 0 302 1.5 Rule:

132. ## math

The height of a triangle is 4 inches more than the base. The area of the triangle is 35 square inches. Find the base and height of the triangle.

133. ## Math

Natatile has 138 DVD's and 419 CD's. If yu were to estimate the sum of the DVD's and CD's, what sentence could you write? Then find your estimated sum.

134. ## English

I want to go to London. It is ten miles form here. ------------------------------ Does 'it' refer to 'London'? Or does it refer to 'the distance' used as an impersonal pronoun? =============================== How far is it from here to the station? (Here

135. ## Chemistry

What is the standard concentration of FeSCN^2+ if 18mL of 0.200M Fe(NO3)3 were combined with 2mL of 0.0020M KSCN?

136. ## Algebra

If a rectangular solid has a volume of x^3+2x^2+x, what could represent the lengths of the sides? don't have a clue how to start

137. ## Physics

A point mass block slides without friction on the loop-de-loop track of radius R as shown. From what height h must it be released from rest in order to make it around the loop without leaving the track? Show the equation and then plug the numbers into that

138. ## Algebra 1

Simplify the difference (-7p^4+4p^3+6)-(3p^3-5p+3) I removed the parenthesis and changed the addition and subtraction signs to their opposites on the second set; -7p^4 + 4p^3 + 6 - 3p^3 + 5p - 3. When I combined the like terms, I was able to simplify the

139. ## Chemistry

Homework question? Colmanite [Ca2B6O11 * 5 H20] is a salt whose boron content gives glass high clarity. You are a buyer for an optical fiber manufacturer and want pure material. You have just received a Certificate of Analysis for a lot that is 12.8 +-

140. ## Math GRE

A broker charged an average commission of 12 percent on two transactions: one for \$600 and the other for \$900. If his commission for the \$900 transaction was 10 percent, what percent was his commission for the \$600 transaction? A) 1% B) 12% C) 13% D) 14%

141. ## English

How far is it from this town to London? 1. It is ten miles to London. 2. It is ten miles away to London. 3. It is ten miles away. 4. It is ten miles from this town to London. ------------------- [Explanation] 1. It doesn't refer to 'this town' in #1. It is

142. ## Math

What is the 23rd term of the sequence 2,4,6,8,

143. ## Calculus

Starting at t=0, a particle moves along the x-axis so that its position at time t is given by x(t)=t^4-5t^2+2t. What are all values of t for which the particle is moving to the left? (A)0

Can someone help me with this problem? if 80% of students Dr. the Bus driver. there are 410 students how many know the Bus driver. My answer is 310. is this correct ____ _80___ 410 100 32,800 divided by 80 = 410 410 - 100 =310

145. ## Maths

Let u=7^x. Using the rules for powers show that i) 7^x-1 = u÷7 and ii) 7^2x-1 = u^2÷7

146. ## Calculus

Find the equation of the tangent line to the curve 2x^2y-3y^2=-11 at the point (2,-1).

147. ## Social Studies

How did the Islamic empire spread so quick along with the religion?

148. ## Personal question

How would you deal with someone that has been bullying you since fourth grade? I have talked to adults talked to councelors and I have talked to his mother who happened to be my fifth grade teacher yet he is still at it. I don't want to seem like a baby

149. ## Pyle

Ramona has 2 cups of sugar and each brownie needs 3/8 cups of sugar. How many brownies can she cover with sugar?

150. ## statics

A1. Miss Dombo, a Ticketing Manager with an Airline ying international routes, has realised that not all passengers show up for their reserved seat. It is clear to her that each passenger's behaviour is independent of the other. Having xed the chances of a

151. ## History

How were third-wave empires different from those of earlier periods? *

152. ## geography

during what period of time did global interdependence first emerge

153. ## lego robotics

WHY DID THEY NOT LET ME IN!!!!!?????

154. ## Algebra

One number is three times the another number. If both numbers are positive and their product is 27, find the numbers

155. ## algebra

pedro and juan can do a piece of work in 3( 3)/(7) days. if pedro works in 3 days and juan in 4 days, they will finish the work. find the time required by each to do the work.

156. ## Math

Mei is at the store buying cheese. The cost of the cheese is \$0.28 per ounce. She buys 11 ounce of the cheese how many much money does mei spend on the cheese?

157. ## Math

A writer was paid \$27,000 for a 3,000-word article. Find the rate per word

158. ## Physics

What the hell are u teaching people!!! :)

160. ## Elementary Stats

A box contains two red balls, four green balls, and two white balls. You extract balls from the box with replacement 100 times. Eachh time you extract a red ball, you win \$1; a green ball, you lose \$0.50; a white ball, nothing happens. -Make a box model of

161. ## Physics

A ball of mass 8 kg moving with a speed of 2m/s and rebounds with the same speed.Determine the impulse experienced by the ball.

162. ## Math

How do you use associative property to compute 2x8x2 mentally

163. ## Math

I'm estimating each product of fractions and whole numbers. I need to understand the steps to find the answers..... example: 5/7of22?

164. ## Maths

A records voltages from 0 volts to 20 volts. If the average value for three readings on the meter was 16 volts, then what the smallest number possible reading, in volts?

165. ## math

Andy finished his job 50% more work then Ali in the same amount of time. Both of them take 10 hours to finish a job. How many hours Ali to finish the same job?

166. ## Calculus

Find the slope of x^2-16xy+y^2=1 at (1,1). Is this -1?

167. ## English

I need to find some interesting articles or videos or anything.. for my English class. My class is not for native speakers (ESL class). Can you please give me some interesting sites that have articles or videos or anything for class discussion??

168. ## Math

Just by reading the steps I am lost please if someone can help me i am studying for a quizz on Friday but I want to undestand . All I understand is the meaning I can see any expression multiplied by 1 is equivalent to original expression but I am lost with

169. ## Math

Find the value of the following expression: (2^8 x 5^-5 x 19^0)^-2 x (5^-2/ 2^3)^4 x 2^28 Can someone show me the steps on how to solve this?

170. ## Math multiplicative identity

Can someone please explain to me how they got this . I keep breaking my head using multiplicative identity 5/3 ×6/6=30/18

171. ## Chemistry

A gallon of isopropanol (IPA) weighs 6,55 lbs. Since 1 lb=453.6 grams, calculate how many moles of ethanol (MM=60.1 grams per mole) are in a gallon of this substance.

172. ## Math

Santo has 14 yellow markers. He has twice as many blue markers as yellow markers. He has twice as many red markers as blue markers. How many markets does he have in all?

173. ## maths

By making the substitution u=7^x and using part a, derive a hidden quadratic equation 7^(2x-1) +4×7^(x-1) -1/14 =0 and hence find all of the solutions to the above equation.

174. ## maths

By making the substitution u =ln x show that the following equation has exactly one real-number solution: -12/ln x +ln x^4 = -9

175. ## History

interaction between states and civilizations occurred to a greater extent than ever before in the third wave civilization period---is this a change or a continuity? * Change?

176. ## Differential calculus

Differentiate the following y=root(e^x)/x

177. ## Math

Find the unit rate 396 km in 6 hr

178. ## physics

A block with a mass of 0.306 kg is attached to a spring of spring constant 444 N/m. It is sitting at equilibrium. You then pull the block down 4.50 cm from equilibrium and let go. What is the amplitude of the oscillation?

179. ## Algebra

What is the solution to a two-variable equation? What are the ways to represent solutions to two-variable equation?

180. ## maths

what time on Friday is 10 hours 47 minutes before 09:26 on Saturday exactly on 24-hours watch?

181. ## Math

Miguel has 325 baseball cards and 272 football cards. He said that he has 597 cards in all. Is his answer reasonable? Explain using estimation

182. ## Math

If my input is 0 and output is blank then my input is 1 and output 2 then input 3 output 22 input 4 output 32 how do i find the first output that is blank?

183. ## Easy Algebra Equation

5-2(x+6)=14 Solve for x. I got 10.5 but the check won't come out right???

184. ## English

Thank you for your help. I have posted one more time about the use of 'it.' 1. The station is 50 meters away. 2. The station is 50 meters. 3. It is 50 meters away. 4. It is 50 meters. 5. The distance is 50 meters away. 6. The distance is 50 meters.

185. ## Math

If john walks 3 miles every day how many miles will he walk in 9 days

22+49

187. ## Math

alicia rides 25% of a 100 mile trip the first day. she rides 331/3% of the remaining distance the second day.whatpercent of the original distance dose she have ride to finish her trip

188. ## Math

Find the unit rate: Jim roller skates 12 miles in 2 hours.

189. ## Social Studies

Our government is divided into three of these.....what

190. ## Math

If divided by 7. The remainder is 3. If divided by 4, the remainder is 0. It is less than 30

191. ## English

1. Ulleongdo is 87.4 km away from Dokdo. 2. It is 87.4 km away from Ulleongdo to Dokdo. 3. It is 87.4 km from Ulleongdo to Dokdo. (Are they all grammatical?)

192. ## math

if the diameter of circle is 18 inches what is the length in inches of retangle

193. ## math

How many different single-scooped ice-cream you can have, if there is 6 flavors and 3 different cones?

194. ## maths

2a third divide by 1 Five divide

195. ## Differential calculus with analytic geometry

use implicit differentiation to find dy/dx. xy^2+4y^3=x-2y

196. ## Math

a parking lot has 66 parking spaces. If there are 16 more compact spaces than regular spaces. How many spaces are there for compact cars?

197. ## Maths

in a class of 73 children, 43 play bowling, 44 play softball and 17 play neither sport? How many play only bowling?

198. ## math

if a 12 ounce can of beans cost .59 how much does one ounce cost .59/12=.04

199. ## math

5x - 5y = -5 4x + 2y = 20

200. ## Math

What is 12 Ã— 12