# Questions Asked onSeptember 10, 2013

1. ## math 4

at the 6th grade school dance, there are 132 boys, 89 girls, and 14 adults. A. write a ratio of number of boys to girls. b. write the same ration using another form (A:B vs A to B) c. write the ratio of number of boys to number of adults. d. write the same

2. ## Technology

A set of headphones is- a- an input device b- an output device c- a data storage device d- a type of storage b?

3. ## physics

To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required for the takeoff, the takeoff velocity, depends on several factors, including the weight of the aircraft and the wind velocity. Part A: A plane accelerates

4. ## Math help Ms. Sue please

1. Name the subset(s) of real numbers to which the number zero belongs. You can choose more than one answer. Irrational numbers Integers Whole numbers Natural numbers 2. Write an algebraic expression for the word phrase: the quotient of r and 12. r * 12 r

5. ## Social Studies

what two adjectives best describe Puritan Church services?

6. ## Physics I

Suppose a rocket launches with an acceleration of 32.0m/s^2. What is the apparent weight of an 95-kg astronaut aboard this rocket?

7. ## Social Studies

How would land elevation have changed if Coronado had traveled 150 miles due west from what is today Arizona instead of east toward New Mexico ?

8. ## Statistics

Emissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in "acid rain." The acidity of liquids is measured by pH on a scale of 0 to 14. Distilled water has pH 7.0, and lower pH values indicate acidity. Normal rain is

9. ## Multiplication

Marlon has 4 cards, jake has 4 cards, and Sam has 3 cards. Can u write a multiplication sentence to find how many cards they have in all? Explain

10. ## math 4

write a sentence to describe the ratio in the context of the situation you chose. A. 1 to 2 = 1 to 2 marshmallows per cup. B. 29 to 30= 29 girls to 30 boys C. 52:12 not sure how to write this one ?

11. ## Math

A Classroom bulletin board is 7 feet by 4 feet. If there is a picture of a student every 6 inches along the edge, including one in each corner, how many pictures are on the bulletin board? The teacher gave me the answer 40 but I don't know how.... Can you

12. ## Physics

A car travels due east with a speed of 50.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth.The traces of the rain on the windows of the car make an angle of 60 degrees with the vertical. Find the velocity of the rain

13. ## math

what is the worlds most musical fish in pizzazz book c

14. ## VERY URGENT SCIENCE

A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half the students in the class \$5.00 if they got an A on their next test. The other half of the class was not

15. ## Astronomy

Earth is spinning along at 1,674 km/h at the equator. Use this number to find Earth's equatorial diameter.

16. ## Fluid Mechanics

Water flows into a cylindrical tank through pipe 1 at a rate of 25 ft/s and leaves through pipe 2 at 10 ft/s and through pipe 3 at 12 ft/s. Pipe 4 is an open air vent. Internal diameters of the pipes are: D1=3 in, D2= 2 in, D3=2.5 in, D4=2 in. Calculate a)

17. ## Math

In Tasha's school, .600 of the students participate in a school sport. If there are on thousand students in Tasha's school, how many participate in a school sport?

18. ## Social Studies

Which sentence best tells the effect of scarcity on economics? A. Scarcity shapes decisions about how to distribute goods. B. Because resources are scarce consumers buy fewer goods. C. Scarcity makes people work harder to make more money. D. The existence

19. ## Math, science

assume the substance has a half-life of 12 years and the initial amount is 133 grams. How long will it be until only 40 % remains?

20. ## physics

The 20-g centrifuge at NASA's Ames Research Center in Mountain View, California, is a horizontal, cylindrical tube 58.0 ft long and is represented in the figure below. Assume an astronaut in training sits in a seat at one end, facing the axis of rotation

21. ## Chemistry

1. Nitrogen monoxide is oxidized in air to give brown nitrogen dioxide. Starting with 2.2mol NO, how many moles and how many grams of 02 are required for complete reaction? What mass of NO2,in grams, is produced?

22. ## Organic Chemistry

1. List the following four compunds in increasing order of polarity: -Resorcinol, Anthracene, Benzoic Acid, and 4-Amino-1-naphthanesulfonic Acid, sodium salt. 2. Predict which solvent (ligroin, water, toluene) might solubilize each solute from the

23. ## math

Evaluate the following indefinite integral by using the given substitution to reduce the integral to standard form integral 2(2x+6)^5 dx, u=2x+6

24. ## Social studies

Suppose the president vetoed a bill passed by Congress. According to the information, which of the following actions by Congress would most likely ensure that the bill will become? 1) let the veto stand 2) reintroduce the same legislation 3) try to

25. ## Algebra word prob

I don't have a graphing calc so I need help with this one. A batter hits a fly ball. A scout in the stands makes the following observations. There is a table with time (seconds) and height (feet) in correspondence to each other time is .75,1.5,2,3.25,4.75

26. ## math last one help

a bead shop sells wooden beads for 3 dollars each and glass beads for 7 dollars each Write a function rule to represent the total selling price of wooden (w) and glass (g) beads.

27. ## Math

The NASDAQ lost 36 points on a monday but rebounded the next day gaining 24 points what was the total change in points -12

28. ## Math, Related Rates

Consider the hyperbola y = 1/x and think of it as a slide. A particle slides along the hyperbola so that its x-coordinate is increasing at a rate of f(x) units/sec. If its y-coordinate is decreasing at a constant rate of 1 unit/sec, what is f(x)? -I

29. ## college algebra

The county news earns a profit of \$20 per year for each of its 3000 subscribers. Management projects that the profit per subscriber would increase by \$0.01 for each additional subscriber over the current 3,000. How many subscribers are needed to bring a

30. ## maths

solve 5sin2x + 12cos2x =11 for 0°«x«180°

31. ## Physics 210

A football kicker is trying to make a field goal from 42.0m. If he kicks at 35∘ above the horizontal, what minimum speed is needed to clear the 3.10m high crossbar?

I have to make a table or list to solve these problems. 1. Tina and Bruce are each rolling a 1 to 6 number cube. They are looking for different ways to roll two factors whose product is greater than 14. How many different ways will they find? 2. Trenton

33. ## science

A bullet is fired vertically upward with initial speed wo, at latitude ö. Neglecting air resistance, by what distance will it be displaced horizontally when it returns to the ground?

34. ## corporate finance

Ngata Corp. issued 17-year bonds 2 years ago at a coupon rate of 9.8 percent. The bonds make semiannual payments. If these bonds currently sell for 102 percent of par value, what is the YTM?

35. ## Chemistry

1. Nitrogen monoxide is oxidized in air to give brown nitrogen dioxide. Starting with 2.2mol NO, how many moles and how many grams of 02 are required for complete reaction? What mass of NO2,in grams, is produced? Please show the solution step by step.

36. ## biochemistry

The enzyme alcohol dehydrogenase catalyzes the following reaction: Ethanol + NAD+  acetaldehyde + NADH + H+ You have a 1 ml solution containing 100 µM Ethanol, and 1 mM NAD+. You then add 1 mg of alcohol dehydrogenase. Assume all of the ethanol gets

37. ## Math

The football team had a gain of 4 yards, then a loss of 6 yards, another gain of 3 yards, and then a gain of 16 yards. How many yards were lost or gained on the four plays?

38. ## Math: Algebra

Madoka has scores 84, 89, and 91, each out of 100 points, on her algebra tests. Use an inequality to find the score she must make on the final exam to pass the course with an average of 90 percent or higher, given that the final is worth 150 points.

39. ## math

Jessica and her seven friends share 3 liters of apple juice equally. How much juice does each friend get.

40. ## physics

A pellet gun is fired straight downward from the edge of a cliff that is 23.1 m above the ground. The pellet strikes the ground with a speed of 38.6 m/s. How far above the cliff edge would the pellet have gone had the gun been fired straight upward? I get

41. ## college algebra

Scott and Laura have both invested some money. Scott invested \$2500 more than Laura and at a 3% higher interest rate. If Scott received \$900 annual interest and Laura received \$450, how much did Scott invest?

42. ## Physics

A truck on a straight road starts from rest and accelerates at 3.0 m/s2 until it reaches a speed of 18.1 m/s. Then the truck travels for 24.5 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.7 s.

43. ## Math

Kate Alexander worked 40 hours last week. Her pay rate is \$8.50 per hour. Assuming 7.65% social security withholding, how much should her employer withhold from her check for social security?

44. ## mitx 8.01x Classical Mechanics

Mary wants to throw a can straight up into the air and then hit it with a second can. She wants the collision to occur at height h=5.0 m above the throw point. In addition, s/he knows that she needs t1=3.0 s between successive throws. Assuming that s/he

45. ## Technology

A printer is a/an: Choose all which apply. a) input device b) output device c) data storage device d) operating system

46. ## mitx 8.01x Classical Mechanics

A motorist traveling with constant speed of vc = 17.000 m/s passes a school-crossing corner, where the speed limit is 10 m/s. Just as the motorist passes, a police officer on a motorcycle stopped at the corner starts off in pursuit. The officer accelerates

47. ## econmics

Suppose the price of widgets rises from \$7 to \$9 and consumption of widgets falls from 25 widgets a month to 15 widgets. Calculate your price elasticity of demand of widgets. What can you say about your price elasticity of demand of widgets? Is it Elastic,

48. ## Science

A student wants to determine what type of cereal his classmates like best. He buys three of his favorite puffed cereals and one oat cereal. He pours five bowls of each cereal and gives one bowl to each of his 20 classmates. He asks each of his classmates

the tallest mountain in california is Mt. whitney. it is 14,491 feet tall. what is the height of mt. whitney rounded to the nearest hundred. the nearest thousand

50. ## math

cara baked 16 cupcakes..she gave tracy one fourth of what she had left .how many cupcakes does she have now explain how you know the answer

51. ## physics

these values were obtained as the mass of a bar of metal: 8.83g 8.84g 8.82g the known mass is 8.83g the values are both accurate and precise- true or false

52. ## SS

What is the most likely short-term consequence of spending all your money on a cookie? a) getting hungry in the afternoon b) saving money for another lunch c) giving up eating the hot lunch that day d) deciding to eat cookies for lunch everyday Is it c?

53. ## math

2x^2-5x-12=0 solve by completing the square. please explain how it's sovled.

54. ## Chemistry

A 28.4378 g sample of impure magnesium carbonate was heated to complete decomposition according to the equation MgCO3(s) → MgO(s) + CO2(g). After the reaction was complete, the solid residue (consisting of MgO and the original impurities) had a mass of

55. ## body systems terminology

Which of the following statements is not correct ? A. Nerves are made of sensory and / or motor fibers B. Sensory nerves are efferent nerves C. The medulla oblongata connects the spinal cord to the rest of the brain D. There are 10 lumbar nerves I have

56. ## Math - Fractions

Mary has invited all her friends and all the students in her class to her birthday party. She invited 27 girls and 15 boys in all. What fraction of the people she invited are girls?

57. ## math

use division to change each fraction to a decimal. 4/5 12/25 1/50 11/20

58. ## Math

Randi takes the stairs at work whenever possible instead of the elevator. She must climb up 51 steps from her office to get to the accounting department. The human resources department is 24 steps below her office. How many steps are there between human

59. ## math

the short side are 5 inches The long sides are twice the short sides. What is the area?

60. ## geometry

in the original drawing, the rectangular pieces of paper from which the hands emerge measures 27.6 cm by 19.9 cm. on a poster of the drawing the paper is 82.8 cm long. what is the scale factor of the dilation used to make the poster? is it scale factor:3

61. ## Pre-calc

Let p(x,y) be a point on the graph of y= X^2-3 A) Express the distance from P to the point (1,2) as a function of x. Simplify completely. B) Use your calculator to determine which value of x-yields the smallest d.

62. ## math

Evaluate the following indefinite integral by using the given substitution to reduce the integral to standard form integral cos(9x) dx, u=9x

63. ## math

A number is rounded to 5,349,000.What are the smallest and greatest possible values for this number?

64. ## physics

A hot air balloon is ascending straight up at a constant speed of 6.50 m/s. When the balloon is 13.0 m above the ground, a gun fires a pellet straight up from ground level with an initial speed of 34.0 m/s. Along the paths of the balloon and the pellet,

65. ## mitx 8.01x Classical Mechanics

During a track event two runners, Mary, and Alice, round the last turn and head into the final stretch with Mary a distance d = 2.0 m in front of Alice. They are both running with the same speed of v0= 5.0 m/s. When the finish line is a distance L= 45.0 m

66. ## physics

A pellet gun is fired straight downward from the edge of a cliff that is 23.1 m above the ground. The pellet strikes the ground with a speed of 38.6 m/s. How far above the cliff edge would the pellet have gone had the gun been fired straight upward? I get

67. ## Physics

A police car is traveling at a velocity of 15.0 m/s due north, when a car zooms by at a constant velocity of 40.0 m/s due north. After a reaction time 0.500 s the policeman begins to pursue the speeder with an acceleration of 6.00 m/s^2. Including the

68. ## physics

Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 42 km away, 21° north of west, and the second team as 29 km away, 37° east of north. When the

69. ## Physics II

Two charges attract each other with a force of 3.0 N. What will be the force if the distance between them is reduced to one-ninth of its original value?

70. ## Spanish 1

Which expression means the same as this one: ¿Son las siete menos veinte? A. Son las siete y veinte. B. Son las ocho y veinte. C. Son las seis y cuarenta. D. Son las siete y cuarenta. B?

71. ## physics

Two stones are thrown vertically up at the same time. The first stone is thrown with an initial velocity of 11.5 m/s from a 12th floor balcony of a building and hits hits the ground after 4.6 seconds. With what initial velocity should the second stone be

72. ## physics

A fire hose ejects a stream of water at an angle of 36.4 ° above the horizontal. The water leaves the nozzle with a speed of 20.1 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the

73. ## math

a rectangular mosaic is made up of exactly 12 square tiles that have an area of 9 square inches each. If the width of the mosaic is 9 inches, what is the perimeter of the mosaic in inches

round to the value of the underlined digit. 1. 6,820 8 is underlined 2. 714,396,283 6 is underlined 3. 85,026,288 2 is underlined after 0.

75. ## AP Chemistry

How many milliliters of a 0.62 M HCl solution are needed to react completely with 4.7 g of zinc to form zinc(II) chloride? Answer in units of mL

76. ## College Math

A plane flies 460 miles with the wind and 310 miles against the wind in the same length of time. If the speed of the wind is 30 mph, what is the speed of the plane in calm air?

77. ## maths

If two dice are toced what is the probility of having a sum of 5 as the outcome(a)1/9(b)1/6(c)1/8

78. ## mitx 8.01x Classical Mechanics

Vector A⃗ , in the first quadrant, has a magnitude |A⃗ |= 1.0 and is at an angle α = 40 ∘ with respect to the positive x-axis. Vector B⃗ , in the fourth quadrant, has a magnitude |B⃗ |= 2.5 and is at an angle β = 20.0 ∘ with respect to the

79. ## lacco

// Each time a salesperson sells a car at the Pardeeville New and Used Auto Dealership, // a record is created containing the salesperson’s name and the amount of the sale. // Sales of new and used cars are kept in separate files because several reports

80. ## Math - Triangles

An isosceles triangle has an interior angle of 26 degrees. Which of the following is a possible degree measure for one of the other interior angles of the triangle? a) 52 degrees b) 64 degrees c) 78 degrees d) 104 degrees e) 128 degrees

81. ## geometry

m(0,3) n(6,0) p(0,-3) scale factor=-1/3 how do you do this i have to draw the image of the figure with given vertices under the dilation with the given scale factor centered at the origin

82. ## math

what value does the 6 represent in 7,801,204.76 ? Is it hundredth ?

83. ## calculus

Use the indicated substitution to evaluate the integral integral 18sec(2x) tan(2x)dx, u=2x

84. ## (ASAP)

how can a relationship between water depth and time to ascend to the water's surface be a function? Explain how the two variables are related. Answer this Question

85. ## Math - Polygons and Quadrilaterals

A rectangle has a diagonal of length 125. If the ratio fo the length of the short side to the length of the long side of the rectangle is 7:24, what is the length of the shorter side of the rectangle?

86. ## Chemistry

How many mole of KClO3 are needed to make 320g O2

87. ## Physics

The Space Shuttle travels at a speed of about 9.11 x 103 m/s. The blink of an astronaut's eye lasts about 93.4 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?

88. ## math

Evaluate the integral upper limit 7pi/4 and lower limit 5pi/4 of 10 csc theta cot theta dtheta

A quadrilateral has interior angles with degree measures of 63, 4s, 5s and 2s. What is the angle measure, in degrees, of the largest angle of the quadrilateral?

90. ## Math - Ratios

In Mrs. Sotomayor's class, the final grade is based on 6 quizzes and 2 exams. If each exam counts for 3 times as much as each of the quizzes, what fraction of the final grade is determined by each exam?

91. ## math

Anna and Tim saw two movies in one day. The two movies lasted 4 hours. One movie was half an hour longer than the other. How many hours did the shorter movie run?

92. ## Physical Science

a student is given a 10 gram sample of gold that has a density of 19.32g/cm3. The student is then given a 5 gram sample of an unknown substance and told the density of the unknown substance is 19.32g/cm3. What is the unknown substance

93. ## algebra 2

a large table seats 12 and cost \$50 , a small table seats 8 and costs \$25, how many tables of each must be rented to seat 100 guests for \$350, for the life of me , i cant remember how to do this.

94. ## chemistry

calculate the amount of Zn(NO3)2 that needs to be added to 724.5 mLs of water to produce a .295 molar solution.

95. ## mathssssSsssss

1.Determine the area of a parallelogram in which 2 adjacent sides are 10cm and 13cm and the angle between them is 55 degrees? 2.If the area of triangle ABC is 5000m squared with a=150m and b=70m what are the two possible sizes of angle C?

96. ## Macroeconomics

what is law of demand?

97. ## math,,,,helpp

describe strategies you have found for deciding whether a fraction is between 0 ans 1/2 or between 1/2 and 1???????????????????

98. ## English

Which of the following statements about literary movements is not true?

99. ## Pre-calc

find a possible polynomial equation of degree 4 if the zeroes are -1,2, and 5, the graph touches the x-axis at -1 but does not cross through, and the y intercept is -5

100. ## 5th grade math help

a bead shop sells wooden beads for 3 dollars each and glass beads for 7 dollars each Write a function rule to represent the total selling price of wooden (w) and glass (g) beads. Is it W t G = 10 ??? or 3 t 7 = 10 ???

101. ## Pre-calc

a rectangular yard is to be enclosed by a new fence on 3 sides and by an existing fence on the fourth side. the amount of new fencing to be used is 160 feet

102. ## Pre-calc

a rectangular yard is to be enclosed by a new fence on 3 sides and by an existing fence on the fourth side. the amount of new fencing to be used is 160 feet

103. ## Science

A cup of coffee ,a 10 gallon aquarium ,and a bottle of ginger ale were on the same table .on which container was there the greatest punt of air pressure ?

David asked the park ranger how old she was. she said when you round my age to the nearest 10, its 30. what is the youngest age the ranger can be? what is the oldest?

105. ## Chemistry

What is the density of 3.40 Liters of Hydrochloric acid (HCl) that has a mass of 24.5 grams?

106. ## Algebra2

The perimeter of a square is 12 cm greater than that of another square. It's area exceeds the area of the other by 39 cm^2. Find the perimeter of each square.

107. ## algebra

The perimeter of a square is 12cm greater than that of another square. It's area exceeds the area of the other by 39cm^2. Find the perimeter of each square. I don't get how to set this up.

108. ## Math - Fractions

Five weeks is how many seventy-thirds of a year(assume a year is 365 days)?

109. ## Math

2(4+5)divide 9

110. ## Math

What is the value of the expression 2xy when x=-2,y=3

111. ## geometry

an optometrist dilates a patients pupil from 6 mm to 8 mm. what is the scale factor for this dilation? is it 2 Answer th

112. ## Math

If you cut 4 inch by 6 inch rectangular piece of glass from a 2 feet by 4 feet sheet of glass what would be the largest number of pieces you could cut

113. ## Math

how can a relationship between water deptg and time to ascend to the waters surface be a function? Explain how the two variables are related.

114. ## math

How many tens are there in 7,801,204.76? Is it 7 ?

115. ## Math

Using elimination how do you find the ordered pair of 2x+y=10 and x+y=8

116. ## mitx 8.01x Classical Mechanics

The vectors A⃗ = 1 x^− 2 y^ and B⃗ =− 4 x^+ a y^− 4 z^ are perpendicular to each other. What is the value of a? a=

117. ## college physics1

A stone is dropped from rest from an infinitely tall building. Compute its velocity after 2 seconds

118. ## Math - Polygons

A polygon with n sides has an average interior angle measure of 150 degrees. What is the value of n?

119. ## Math - Fractions

2/3 of the pieces of Fruit in Lurene's basket are oranges. Of the fruit that are not oranges, 2/3 are apples, IF 2/2 of the apples are green and there are 6 pieces of fruit that are neither apples or oranges, how many more oranges than green apples are in

120. ## math

Show me how to write 201046 in standard form and in expanded notation

121. ## Math - Number Properties

The positive difference between the integers u and v is 6. If w is also an integer and the positive difference between v and w is 5, what is the positive difference between u and w?

122. ## Math - Area

A rectangle shares a side with a square of area 32 and shares another side with a square of area 98. Waht is the area of the rectangle?

123. ## Physics

A hot-air balloon is rising upward with a constant speed of 2.27 m/s. When the balloon is 9.14 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground? I solve

124. ## Math - Averages

Set X is defined as {6,12, -4, 0, 7, 9, -1, 2, 5}. If r is the range of set X, and m is the median of the set X, what is the value of r - m ?

125. ## math

If you could select a number different from 24 to represent the number of hours in a day what number would you choose? Why?

126. ## math

what prime numbers do you get when you enter each number from 0 to 10 in this expression? __2 + __ -1 please help Asap! 2= squareroot

127. ## math

How do I draw a diagram to show how to find the solution to 2.6 divided by 0.4

128. ## History - Explorers

I have to do a research on Henry Hudson and I need info about his background, when he was young. Need Help

129. ## mitx 8.01x Classical Mechanics

An object is moving along a straight line parallel to the x-axis. Its position as a function of time is given by: x(t)=30 m−21 (ms) t+3 (ms2) t2 where the position x is in (m) and the time t is in (s). (a) What is the object's velocity at t=0 s, 2 s, and

130. ## English

Sort words by long vowels sound. 1date 2 fine 3 rose 4 lake 5 life 6home 7safe 8 rice 9 globe 10 plane

131. ## math

on a special scale in the science lab Scott weighed samples of different soils. Sample A weighed 3 ounces. Sample B weighed 814 thousandth of an ounce more than sample A. What decimal should Scott use to record the weight for sample B

132. ## math

I have fewer ones than tens. the value of my tens is 20 what two numbers can I be

133. ## Calculus

Find the limit of the sequence {√(2), √(2√(2)), √(2√(2√(2))),...

134. ## Math

Linda entered an elevator on floor 9. She rode down 8 floors. THen she rode up 11 floors and got off. What floor was she on when she left the elevator? 12?

135. ## Math - Algebra

In the forrectly worked subtraction problem below, each letter represents a different digit. What is the largest possible value of E? FLEA - BEE _____ MOLE

136. ## us history

when i write my thesis statement where do i put it in my paper? is it the first line of paper or what?

137. ## Math - Divisibility and Factors

If the fraction 54/e is a fraction in lowest terms, what is the possible value of a?

138. ## sociology question

What are at least 3 theoretical perspectives of the way gender is represented and reproduced in American consumer culture that sales products to girls and boys

139. ## english

you had no right to call me a clumsy just because i spilled some water on you

140. ## Math - Multi Variable Equations

If (x^2a/x^4) = [(square root of x^7)/x^a], what is the value of a?

141. ## physics

a baseball was launched from 1.5 m above the ground. the ball was caught at a position 4.5m above the ground with a speed of 28m/s moving at a angle of 30 degrees below horizontal: find initial velocity - time of flight - range

142. ## math

Evaluate Integral upper limit 2 and lower limit 0 of 3x(x-7)dx

143. ## math

Evaluate the integral upper limit pi and lower limit 7pi/2 of (1-cos2tdt)/2

144. ## calculus

integral cos(4z-5)dz

145. ## calculus

Integral sin 8x/2 cosx/2 dx

146. ## Maths-Calculus

If f(2)=1 and f(2+h)=(h+1)3, compute f′(2). If f(−1)=5 and f(−0.9)=5.2, estimate f′(−1). If the line y=−3x+2 is tangent to f(x) at x=−4, find f(−4). Your answer should be expressed as an integer. If the line y=x−1 is tangent to the graph

147. ## biology

concentration of methyl mercury in fish and number of meals safely consumed per month which is the dependent and independent does the dependent go on the y or x-axis

148. ## mitx 8.01x Classical Mechanics

For the following 3 vectors A⃗ =2y^+3z^ B⃗ = 3 x^+2z^ C⃗ = 3 x^+3y^ Calculate the following: (a) A⃗ ⋅(B⃗ +C⃗ )= (b) D⃗ =A⃗ ×(B⃗ +C⃗ ) Dx= Dy= Dz= (c) A⃗ ⋅(B⃗ ×C⃗ )= (d) G⃗ =A⃗ ×(B⃗ ×C⃗ ) Gx= Gy= Gz=

149. ## Algebra

I need to simplify this: 2(-7) + 15(-7) =

150. ## algebra 1

the area of a rectangle with the base of 3x-1 and the height of 2x-2, and a square with the base 2x+2 and the height of 2x+2

151. ## physics

A car travels in a straight line for 4h at a constant spped 73km/h. What is its acceleration? Answer in units m/s^2

152. ## Politics

Which one of the following budget items would probably be considered a fixed expense?

153. ## Math - Fractions

The memory card on Roger's digital camera hold z pictures(of equal size). After using up 1/4 of spaces on the memory card, Roger took 7 more pictures. The card then had 5/7 of its memory remaining. What is the value of z?

154. ## Chemistry

Calculate the volume of 5.6 kg of ethanol that has the density 0.785 g/cm3

155. ## Math - Number Properties

What is the smallest integer greater than 5 that leaves a remainder of 5 when divided by any of the integers 6,8, and 10?

156. ## Math - Divisibility and Factors

If c and d are integers, d is divisible by 30, and cd is divisible by 20, c must be divisible by which of the following? a) 2 b) 4 c) 5 d) 6 e) 10

157. ## Math - Power

If g is an integer greater than 1 and ( g^3/(g + 1)^2 ) < 1, what is the possible value of g?

158. ## physics

a baseball was launched from 1.5 m above the ground. the ball was caught at a position 4.5m above the ground with a speed of 28m/s moving at a angle of 30 degrees below horizontal: find initial velocity - time of flight - range

159. ## math

Evaluate the integral upper limit sqrt11 and lower limit 1 of (s^2 + sqrt 5)/ s^2

160. ## calculus

Integral -csc^2 (2x+9)dx

161. ## math

What is the simplest form of 25,000/85,000

162. ## maths

Find the angle between U=4i-2j+4k and V=3i-6j-2k (a)68(b)67(c)58(d)69

163. ## maths

If two dice are toced together what is the probability of having equal outcomes (a)1/6,1/9(b)5/36,1/6(c)1,1/8(d)6,1

164. ## Propoganda: Geo8

According to propaganda, what would happen for women who aided the war effort? I know it isnt that they would help their sons come home. is it that they would earn more rights?

165. ## Math

Evaluate each expression if a=11, b=8, and c= -6. 17. a - 17 -28 18. 10 - b 2 19. -30 - c -24 20. b - a 19 22. c - b -14 23. b - c + a 3 24. b - c - a 25 25. c - a - b -3 28. c - a + b -13

166. ## math

i need help with this question!!! describe your strategy for finding a fraction equivalent to a given fraction?

167. ## us history

in 1950s americans feared the most was?

168. ## chem 20

100. G of a metal required 848 calories to be heated from 25 degrees celsius to 100 degrees celsius calculate the specific heat of the metal

169. ## Math - Divisibilty and Factors

What is an odd three-digit number that is divisible by a perfect square and 47?

170. ## Math - Averages

Deanna is selling Gal Scout cookies. Her goal is to sell an average of \$90 worth of cookies each day for the next 10 days. If each box of cookies costs \$2.25, and she sold an average of 44 boxes a day for the first 6 days, how many boxes must she sell, on

171. ## History (Western Civilization)

What are the famous developments of Pericles leadership in Athens?

172. ## physics

a baseball was launched from 1.5 m above the ground. the ball was caught at a position 4.5m above the ground with a speed of 28m/s moving at a angle of 30 degrees below horizontal: find initial velocity - time of flight - range

173. ## History (Western Civilization)

How the Greeks are described as distinctive from previous peoples as relates to philosophy?

174. ## math

Evaluate integral upper limit 1 and lower limit 0 of (7x^2 - 8x +3)dx

175. ## algebra

movie tks are \$5.00 in advance and \$9.00 at the door. The theater sold 50 more advanced tks and total sales were \$1650. How many of each priced tks were sold.?

176. ## MATH

Reasoning Does (4+5)+2=9+2? explain

177. ## English

1. It smells where the sun doesn't shine. (What does 'it' refers to in this sentence?) 2. Open your mouth wide. 3. Open your mouth widely. (Which one is grammatical?) 4. You should weigh your words before speaking. (What can we use instead of 'weigh'?) 5.

178. ## Math -

If 7w > 44 and 3w < 19, what is a possible value for w – 6?

179. ## Math - Area

A rectangle shares a side with a square of area 32 and shares another dise with a square of area 98. Waht is the area of the rectangle?

180. ## Math - Word Problem

At a certain dance class, each student must pick exactly one partner. Each pair of dancers must consist of one advanced student and one beginner student. At first, after everyone pairs up, there are 4 extra beginner students. Then, after half of the

181. ## Math - Power

If n >0 and 9 = n^6, then 27n is equal to all of the follwoing except: a) 81/n b) 3n^7 c) 9n^4 d) n^10 e) n^13/3

182. ## Math - Power

If x^12 = 125 then x^4 = ?

183. ## math

If a case of water polo balls (12 in each case) and each ball weighs 448 grams, What is the weight of the one case of water polo balls?

184. ## poetry

what is stanza

185. ## Math

When A=3,b= -1 what is the value of Ab-b2

2x+3=15

187. ## math

The equation 2wcubed. Do you cube w first then multiply by 2 or do you multiply w times 2 first and then cube the sum?

188. ## math

find dy/dx y= integral upper limit tanx and lower limit 0 of dt/1+t^2

189. ## calculus

integral 3z^6 sqrt(2-3z^7)dz

190. ## math

2x^2-5x-12=0 solve by completing the square. please explain how it's sovled.

191. ## Lit

in the scarlet letter what influence did the witches have on pearl thanks!

192. ## prelag8

3x^2, 12y, and 10x^3y^3 what is the lcm of these numbers?

193. ## 8 th grade math

Need help working out how to get Adding, Subtracting , Division , and multiplying of the integer 34

194. ## Math - Ratios

A pet store sells mice in 2 colors: brown and white. If 3/5 of the mice are brown, the ratio of male mice to female mice is 2:1, and 1/2 of the female mice are white, then what is the ratio of the number of brown male mice to the number of white male mice?

195. ## Math Subtracting integers

-11 minus 8 minus -6 = -13?

196. ## Math - Power

If r > 0 and r^4= 27, the r^6= ?

X-6=18

198. ## social studies

urban communities