# Questions Asked onOctober 22, 2012

1. ## CALC 251

Let f(x)= [5x^(1/4)]*(x^3-8) Evaluate at f'(x).

2. ## Chemistry 9

a) A 2.56 balloon contains 3.66 g of gas. Find the density b) A 45.3 g sample placed in a graduated cylinder causes the water level to rise from 25.0 mL to 41.8 mL . Find the density

3. ## CALC 251

Suppose that f(x)= (e^x)/(x^2+16. Find f'(0).

4. ## Physics

the input and output of hydraulic jack are respectively 1 cm and 4 cm in diameter. A lever with a mechanical advantage of 6 is used to apply force to the input piston. How much mass can the jack lift if a force of 180 N is applied to the lever and

5. ## chemistry

Will a fluoride concentration of 1.0 mg/L be soluble in a water containing 200 mg/L of calcium? I got Qsp 1.38 * 10^-8 and Ksp = 3.45*10^-11 does that seem right? and does this mean fluride concentration will be soluble in water containing calcium?

6. ## south piedmont

convert to a mixed number 89/6

7. ## statistics

According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Suppose 150 flights are randomly selected. Find the probability that few than 125 flights are on time.

8. ## science

at what age does brain stops developing

9. ## physics

A chair of weight 100N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0N directed at an angle of 35.0^\circ below the horizontal and the chair slides along the floor. Using Newton's laws, calculate

10. ## physics

A particle of mass 0.350 kg is attached to the 100-cm mark of a meter stick of mass 0.175 kg. The meter stick rotates on a frictionless, horizontal table with an angular speed of 6.00 rad/s. (a) Calculate the angular momentum of the system when the stick

11. ## algebra

a barrel contains 163 gallons of water and is being drained at a constant rate of gallons per hour write an equation that models the number of gallons g after t hours

12. ## physics

A chair of weight 100N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0N directed at an angle of 35.0^\circ below the horizontal and the chair slides along the floor. Using Newton's laws, calculate

13. ## math

A box contains 55 balls numbered from 1 to 55. If 15 balls are drawn with replacement, what is the probability that at least two of them have the same number?

14. ## Math

Solve using Augmented Matrix Methods -4(x1) + 6(x2) = -8 6(x1) - 9(x2) = 12

15. ## College chemistry

When your body metabolizes amino acids, one of the final end products is urea, a water so liable compound that is removed from the body as urine. Why is urea soluble in water, when hexamide, a related compound is not?

16. ## College chemistry

When your body metabolizes amino acids, one of the final end products is urea, a water so liable compound that is removed from the body as urine. Why is urea soluble in water, when hexamide, a related compound is not?

43. ## calculus

compute the maximum profit for the profit function P(x)= x^3/3-9/2x^2+8x

44. ## lens surface

- a spherical generator is used to produce a -15.00D surface on glass of refractive index 1.80. The diameter of the cutting tool is 80mm and the radius of the cutting surface is 4 mm. What is the angle between the axis of the tool and the axis of the lens?

45. ## math

Write a number sentence for the model. Let one white tile equal +1 and one black tile equal –1. A. –14 – (–6) = –8 B. 14 – 6 = 8 C. –14 – 6 = –8 D. –14 – (–6) = 8 i put d but it was rong

46. ## algebra 1

top and bottom margins are 7/8 inch there are 5 rows of pictures with 3/16 inch between the vertical what would be the height of each picture

47. ## Algebra

Quick question. The sum of two numbers is 48. One number is 3 times as large as the other. What are the numbers?

48. ## geometry

A square pyramid has base edges 10 in. long and a height of 4 in. Sketch the pyramid and find its surface area. Round your answer to the nearest tenth

49. ## phys!!! how do you do this

Just after opening a parachute of negligible mass, a parachutist of mass 85.5 kg experiences an instantaneous upward acceleration of 1.12 m/s2. Find the force of the air on the parachute.

50. ## accounting

Okay so I need help Identifying the reporting issues in this case with references to the conceptual framework pyramid, such as revenue recognition, full disclosure, historical cost, etc. So this gym offers one year memberships. Members can use any of the

51. ## physics

Just after opening a parachute of negligible mass, a parachutist of mass 85.5 kg experiences an instantaneous upward acceleration of 1.12 m/s2. Find the force of the air on the parachute.

52. ## voltage drop

12v r1=10 r2=15 r3=2 r3=18 how would one solve this

53. ## Chemistry

lime, Ca(OH)2 can be used to neutralize an acid spill.A 5.06-g sample of Ca(OH)reacts with excess of hydrochloric acid:6.74 g of calcium chloride is collected what is the percent yield of this experiment Ca(OH)2 + 2HCI ====> CaCl2 + 2H2O

54. ## geometry

The volume of 2 similar solids are 27 ft3 and 216 ft3. The surface area of the larger solid is 300 ft2. What is the surface area of the smaller solid? Round your answer to the nearest tenths place

55. ## Maths

Question: I graphed -2x+y=-6 Y=-(1/3)x+1 & w/ the options No Solution, Infinante Solutions, or ( , ) I found the answer is (3,1) am I correct? What would be a better way to double check my answers?

56. ## calculus

A health club offers memberships at the rate of $300, provided that at least 50 people join. For each member in excess of 50, the membership fee will be reduced by$2 for all members. Due to space limitations, at most 125 memberships will be sold. How many

57. ## Finite Math

A polygraph machine correctly identifies a lie 81% of the time, and incorrectly identifies a true statement as a lie 8% of the time. If a person being examined with the machine lies 10% of the time, what is the probability that a statement identified by

58. ## Finite Math

A fair coin is flipped. If the flip results in a head, then a marble is selected from an urn containing 1 red, 4 white, and 9 blue marbles. If the flip results in a tail then a marble is selected from an urn containing 3 red and 3 white marbles. If the

59. ## Algebra

A petroleum company has two different sources of crude oil. The first source provides crude oil that is 35% hydrocarbons, and the second one provides crude oil that is 60% hydrocarbons. In order to obtain 120 gallons of crude oil that is 55% hydrocarbons,

60. ## physics help

Just after opening a parachute of negligible mass, a parachutist of mass 85.5 kg experiences an instantaneous upward acceleration of 1.12 m/s2. Find the force of the air on the parachute.

61. ## physics

Two artifacts in a museum display are hung from vertical walls by very light wires, as shown in the figure.Find the tension in the horizontal wire ifw=158Nandm=30.0 kg.

63. ## Geometry

The angle of elevation of a ladder leaning against a wall is 45°. If the distance from the base of the ladder to the wall is 15 feet, find the length of the ladder.

64. ## Grammar

Select the correctly punctuated sentence. A) The implant was ruptured, it was removed, the capsule was irrigated. B) The implant was ruptured it was removed, the capsule was irrigated. C) The implant was ruptured, it was removed the capsule was irrigated.

65. ## algabra

why are prime numbers beter when writing codes?

66. ## Abnormal Psychology

In comparison to children with autism, children with schizophrenia A. tend to be younger at diagnosis. B. show a more chronic and declining course. C. show similar social and language deficits. D. show less intellectual impairment. I think its C or D but

67. ## Calc

Set the first derivative and second derivative of x^2/x-2 equal to 0. Solve for 0.

Just after opening a parachute of negligible mass, a parachutist of mass 85.5 kg experiences an instantaneous upward acceleration of 1.12 m/s2. Find the force of the air on the parachute.

69. ## Calculus

simplify log2(4x^2 2^x)

70. ## Calculus (math)

Write a formula for f^-1 (x) if f(x) = (x+5)/(3x-4) and state the domain of f-1

71. ## Math

Eliminate the parameter in the pair of parametric equations to find the corresponding rectangular question. x=h+ asecQ y=k+ tanQ

72. ## chemistry

Is this equation correctly balanced? If not why. Al2S3+H2O----> Al2S3+3H2O---->Al2(SO)3+3H2

73. ## Calculus

The population (in thousands) of the Tzitzit bird is well described by a function of the form P(t) = ae^kt, where t is the time in years and a and k are constants. If the population was 10 thousand when t-0 and 300 thousand when t=3, determine the

74. ## english2

Bee balm, coneflowers, and black-eyed Susans, brightly colored flowers with darker bulbous centers, contrast beautifully when planted together. is it correct

75. ## Physical Science

How much heat is absorbed by pouring 10 grams of 100°C liquid water on a student’s hand. The water is cooled to body temperature, 37°C. Assume that all of the heat is absorbed by the hand

76. ## Punctuation

Select the correctly punctuated sentence. A) No, I do not agree with that diagnosis. B) No I do not agree with that diagnosis. C) No I do not agree, with that diagnosis. My answer is A

77. ## calculus

Left f(x) = 1/x+2 and g(x) = x-1/x. Simplify as much as possible and sstate the domain. f 0 g(x) g 0 f(x)

78. ## Calculus

Im finding local Min and max of x^2/x-2 I know I take the derivative of the first one but how do i derive this one. And the second one especially don't know how to do.

79. ## Physics

An elastic collision occurs between two pucks on an air-hockey table. Puck A has a mass of 0.025 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.060 kg and is initially at rest. The

80. ## Punctuation

Select the correctly punctuated sentence. A) It was an exhausting complicated surgery. B) It was an exhausting, complicated surgery. C) It was an exhausting, complicated surgery My answer is B

81. ## Punctuation

Select the two (2) correctly punctuated sentences. A) I also explained antepartum fetal surveillance, i.e., fetal heart rate monitoring and assessment of amniotic fluid volume. B) I also explained antepartum fetal surveillance, i.e. fetal heart rate

82. ## Punctuation

Select the correctly punctuated sentence. A) His greatest fears were a stroke, a heart attack, and blindness. B) His greatest fears were a stroke a heart attack and blindness. C) His greatest fears were a stroke, a heart attack, and blindness I answered A

83. ## physics

When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm

84. ## Math

Cutting a circle into equal sections of a small central angle to find the area of a circle by using the formula A=pi*r*r

85. ## math

air fare club offers membership at $300.00, at least 50 people must join.For every member over 50 their fare will be reduced by$2 for every member. Due to space limits only 125 passengers will be allowed. how many memberships will maximize the revenue?

86. ## Punctuation

Select the correctly punctuated sentence. A) Depression, often a genetic disorder, can be safely treated with medication. B) Depression, often a genetic disorder can be safely treated with medication. C) Depression often a genetic disorder can be safely

87. ## Abnormal Psychology

In the “strange situation” attachment assessment technique, children with Down syndrome A. display significant distress upon separation. B. readily reach to strangers for comfort. C. show few distress signals despite an apparent need for contact with

88. ## Physics

A dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.20 104 rad/s to an angular speed of 3.14 104 rad/s. In the process, the bit turns through 1.92 104 rad. Assuming a constant angular acceleration, how long would it take

89. ## Chemistry

The rate constant for a certain reaction is k=8.90×10^−3 s^-1. If the initial reactant concentration was 0.400M, what will the concentration be after 13.0 minutes?

90. ## Punctuation

_____ are primarily used to separate sentences. A) commas B) periods My answer is B

91. ## Physics

A simple pendulum consists of a light rod of length L = 0.9 m anchored at a fixed point (like the ceiling), and a small mass m = 0.5 kg attached to the free end.  The configuration is moved to an angle Î¸ = 39 degrees from the vertical and released from

92. ## Physics

A massless string connects three blocks as shown below. A force of 24 N acts on the system. What is the acceleration of the blocks and the tension in the rope attached to the 2 kg block?

93. ## science

you are sledding on a snow-covered hill at a speed of 6 m/s there is a drop that increases your speed to 12 m/s in 4 s. find your acceleration? i need help answer?

33x650x-43

95. ## algebra

can anyone please help me set this problem up, I can do the math but I have tried for hours... Air fare club offers membership at $300.00, at least 50 people must join.For every member over 50 their fare will be reduced by$2 for every member. Due to space

96. ## Ratios of Similar Figures

1. Write the following ratio in simplest form: 32 min : 36 min a. 8 : 9 b. 8 : 36 c. 32 :9 d. 128 : 144 2. In a sports equipment locker, there are 81 balls and 45 baseball mitts. Write the ratio of balls to baseball mitts in simplest form. a. 9 : 5 b. 10 :

97. ## math/algebra

How do I find the quotient of 5/22 & 6/11?

98. ## physics

When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm

99. ## physics

When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm

100. ## Science

How much heat must be removed from 500 grams of water at 0°C to form ice at 0°C?

101. ## mathe

aufgabe 1.rechne für die folgenden massstäbe aus,welche Länge fünf zentimeter auf der wirklichkeit haben. massstab 1--1000000-- massstab 1--40000000,massstab1--50000--massstab--10000-- massstab 1--500000

102. ## Science Help!

How much heat is needed to cause the following irreversible reaction? 200 g of liquid H2O at 50°C is heated to form 200 g of steam at 120°C

103. ## chemistry

How many grams of solid potassium hydroxide are needed to exactly neutralize 10.8 mL of a 1.25 M hydrobromic acid solution

104. ## physics

A car moving 30m/s slows uniformly to a speed of 10 m/s in a time of 5 sec determine 1) the acceleration of the car 2) the distance it moved in 3 sec

105. ## Chemistry

What volume of a 0.332 M hydrobromic acid solution is required to neutralize 29.6 mL of a 0.155 M calcium hydroxide solution ?

106. ## Punctuation and period

The most commonly used mark of punctuation is the _____ A) comma B) period I answered B

107. ## Punctuation and period

Commas are used to set off _____ phrases. A) essential B) nonessential I answered nonessentials

108. ## physics

A car moving 30m/s slows uniformly to a speed of 10 m/s in a time of 5 sec determine 1) the acceleration of the car 2) the distance it moved in 3 sec

109. ## Punctuation

Select the correctly punctuated sentence. A) Dr. Christiaan Barnard, who performed the first heart transplant, is a well-known cardiologist. B) Dr. Christiaan Barnard, who performed the first heart transplant. Is a well-known cardiologist. C) Dr.

110. ## calculus

What is the degree 5 coefficient of the polynomial p(x)= x^2 (x+1) (x+3x^3 + 4x^4)?

111. ## Punctuation

Select the correctly punctuated letter closing. A) Very sincerely yours, Joseph Blow, President B) Very sincerely yours, Joseph Blow President C) Very sincerely yours Joseph Blow, President I answered A

112. ## Physics

How many calories will take to convert 5 grams of 90C degree water to 0 C degree?

113. ## cis210

Assignment 1: Inventory Management Systems Due Week 2 and worth 100 points Your sister owns a small clothing store. During a conversation at a family dinner, she mentions her frustration with having to manually track and reorder high demand items. She

114. ## Physics

How many calories it take to elevate the temperature of 10 gr of water-from 26C to 50C?

115. ## Punctuation

Select the correctly punctuated sentence. A) He arrived at the hospital with a heavily, bleeding gunshot wound. B) He arrived at the hospital with a heavily bleeding, gunshot wound. C) He arrived at the hospital with a heavily bleeding gunshot wound. I

116. ## Sci 207 wk 2 lab 2

Which species appear to benefit from increasing fragmentation? Which species are negatively impacted? Based on your knowledge of environmental science, what could explain these observations? Support your answer with specific results from your data and

117. ## College Algebra

The concentration C of a certain drug in a patient's bloodstream t minutes after injection is given by C(t)=50t/t^2+25. Determine the time at which the concentration is highest. Round your answer to the nearest tenth of a minute.

118. ## chemistry 20 MC questions

1- The equipment needed to carry out a titration is: A) hot plate, pipet, and filter paper B) heat source, test tube, and filter paper C) heat source, pipet, and burette D) erlenmeyer flask, pipet, and burette 2- A student correctly predicted that 10.0 g

119. ## Algebra

The difference between the digits in a two-digit numeral is 3. The units' digit is twice the tens' digit. Find the nuermal.

120. ## Calculus

Find the limits if they exist lim_x->0 x/|x| lim_x->0+ sqr(x+4)

121. ## science

A balloon with an initial volume of 2.8L at a temperature of 296K is warmed to 375K . What is its volume at the final temperature? (Assume constant pressure.)

122. ## math

Find the second derivative. f(x)=(2x^2+4)^7/2

123. ## Chemistry

What is the molar concentration of nitrate ions in a 0.161M magnesium nitrate(aq) solution?

124. ## Chemistry

In the theoretical reaction 2 B(aq) + 3 D(aq) ---> E(aq) + 4 F(aq) the concentration of D(aq) is 0.40 mol/L. If 25.0 mL of aqueous B is needed to react completely with 30.0 mL of aqueous D, the concentration of B(aq) is A-0.48 mol/L B) B-0.32 mol/L C)

125. ## math

what is the prime factorization of 1 bilion using exponents?

126. ## Accounting

I am given several hypothetical amounts and interest rates and need to find the amount of the rental payments. (Lessee-Lessor Entries; Sales-Type Lease) On January 1, 2011, Palmer Company leased equipment to Woods Corporation. The following information

127. ## Writing

I have to do a research paper & I want my topic to be on Pixar's influences on the world. My thesis: Pixar is a positive influence on the world. My supporting evidences - 1) Has helped the animation industry 2) Has helped the film industry 3) Has inspired

128. ## Physics

An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s2 . What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N

129. ## Physics

007 (part 1 of 2) An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s2 . What is the upward force exerted by the floor of the elevator on a(n) 92 kg passenger? Answer in units of N 008 (part 2 of 2) If the same elevator

130. ## math

Suppose f is a linear function such that f(1) = -1 and f(3)=2. Then f(4)=?

131. ## Physics

Compute the angular momentum of the earth arising from the following motions. (a) Earth's orbital motion around the sun. (b) Earth's rotation on its axis.

132. ## Discrete Math

A bag contains 4 red, 6 white and 9 green marbles. How many ways can 3 red, 2 white and 1 green marbles be selected? Do you used permutation or combination, give your reasoning.

133. ## physics

A solid sphere of mass 0.604 kg rolls without slipping along a horizontal surface with a translational speed of 5.25 m/s. It comes to an incline that makes an angle of 38 with the horizontal surface. Neglecting energy losses due to friction, (a) what is

134. ## calculus

Find the limits lim_x->2 x^3+x lim_x->2 (x^2-4)/(x-2)

135. ## Physics

Two resistors 10 Ω and 5 Ω are connected in parallel across a 15 V battery. What is the potential difference across the 10 Ω resistor? 5 V 10 V 15 V 20 V I would think the answer would be B, or 15V

136. ## Physics

An electric kettle operates at 110V. What is the resistance of the kettle if the power is 1.5kW? 8.1 Ω 1.4 Ω 81 Ω 14 Ω I'm stuck between A and B

137. ## Physics

A 1.08 kg skateboard is coasting along the pavement at a speed of 4.60 m/s when a 1.19 kg cat drops from a tree vertically downward onto the skateboard. What is the speed of the skateboard-cat combination?

138. ## science

Is a mineral a crystal?

139. ## Physics

Three resistors having the same resistance value are wired in parallel. How does the equivalent resistance compare to the resistance value of a single resistor? The equivalent resistance is thrice the value of a single resistor. The equivalent resistance

140. ## Physics

An inventive child named Chris wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley, Chris pulls on the loose end of the rope with such a force that the spring scale

154. ## history 103

Summarize the major factors that allowed the Incas to conquer and rule their large empire. Some suggest that, in many ways, the Incas were like the Romans or other Pre-Columbian American Civilizations. Evaluate whether they were more similar or different,

155. ## physics

wile e coyote pushes a 1500n rock toward the edge of a cliff with the road runner below. he gives a rock acceleration of .8m/s. what is the net force of the rcok?

156. ## history 103

The voyages of Zheng He reveal a powerful, accomplished, and restored Confucian state and civilization in China that was at least equal to, but very different from, emerging early modern Western civilization. List and describe the major factors that made

157. ## Physics

A 5.9 g coin sliding to the right at 27.6 cm/s makes an elastic head-on collision with a 17.7 g coin that is initially at rest. After the collision, the 5.9 g coin moves to the left at 13.8 cm/s. (a) Find the final velocity of the other coin. (b) Find the

158. ## physics

wile e coyote pushes a 1500n rock toward the edge of a cliff with the road runner below. he gives a rock acceleration of .8m/s^2. what is the net force of the rcok?

159. ## physics

two kids push on a 10kg box. one pushes 100N to the west and the other pushes north at 200N. what is the acceleration of the pbject?

160. ## physics

a wagon is pulled at a constant speed at an angle of 46 dregress with a force of 100N. ehat is the force of friction between the wagon and the ground ?

161. ## physics help i still dont get it

A picture of width 43.0 cm, weighing 52.0 N, hangs from a nail by means of flexible wire attached to the sides of the picture frame. The midpoint of the wire passes over the nail, which is 2.50 cm higher than the points where the wire is attached to the

162. ## Physics

An inventive child named Chris wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley, Chris pulls on the loose end of the rope with such a force that the spring scale

163. ## math

Can these functions be defined for all real numbers? y= e^cos(x) y= ln(sin(x)) y= sqr(cos(x)+2) I'm trying to find some systematic way to test these, but I'm not sure how I can proe it for any possible input.

164. ## Physics

Which doesn't describe motion? mass or position eg. The position of a golf ball standing still on a tee at 7:30 A.M. Sunday morning. or The mass of Voyager as it plunges into a black hole.

165. ## Chemistry 20 titration

1) oi50 . tinypic . com / ejh6vm . jpg The most suitable indicator for the titration is: A)methyl violet B)chlorophenol red C)methyl orange D)phenolphthalein 2-A base is titrated with an acid solution until the indicator changes colour. This change in the

166. ## math

Name a number that can be evenly divided by 6 and 7

167. ## soicial studys help plz

1. Who was the French absolute monarch who called himself the "Sun King" to show that he was the center of the French nation? (1 point)Cardinal Richelieu Louis XIII Louis XIV Versailles 2. The Elizabethan Age was considered a golden age due to all of the

168. ## mathURGENT!!!!

the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. what is the answer and can u explain how u got it step by step? please...

169. ## PHYSICS

When a 0.116 kg mass is suspended at rest from a certain spring, the spring stretches 3.50 cm. Find the instantaneous acceleration of the mass when it is raised 5.70 cm, compressing the spring 2.20 cm.

170. ## Chemistry Lab

Does the pressure exerted by a gas depend on its molar mass?

171. ## Physics

Three objects with masses m1 = 7.4 kg, m2 = 11 kg, and m3 = 18 kg, respectively, are attached by strings over frictionless pulleys (M1 hangs off the left side of the table and M3 hangs off the right side of the table with M2 between them on the table). The

172. ## math

a disk has an area of 250 square inches.what is theradius of the disk?

173. ## math

(3x+1)^3/(3x+1)^3 +1 use the chain rule to complete the derivative

21. A candle is 17 in. tall after burning for 3 hours. After 5 hours, it is 15 in. tall. Write a linear equation to model the relationship between height h of the candle and time t. Predict how tall the candle will be after burning 8 hours. (2 points)

175. ## Biology (cell-molec)

You wish to perform a restriction digest in a 20uL volume. Your DNA is 0.20 ug/uL and you wish to digest 1.0 ug. Your restriction enzyme is provided as 0.2 U/uL. Fill in the appropriate volumes: H2O, 10Xbuffer, DNA, and restriction enzyme. Please show

176. ## Physics

A railroad car with a mass of 1.86 104 kg moving at 2.80 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.40 m/s. (a) What is the speed of the three joined

177. ## input/output tables

I have a blank table to fill in.It says divide m by 3 m÷3

23×17

179. ## Computers

How can computers affect our health?

180. ## Physics help PLZ!!

Estimate the energy required from fuel to launch a 1465 kg satellite into orbit 1375 km above the Earth’s surface. Consider two cases: (a) the satellite is launched into an equatorial orbit from a point on the Earth’s equator, and (b) it is launched

181. ## Math

Monday, Mr. C stacked a display case of 80 heads of lettuce. By end of day, some were sold. Tuesday Mr. C counted lettuce left and decided to add an equal number of lettuce (**hint - he doubled the leftovers).  At end of Tuesday, he sold the same number

182. ## Math

2(2+7)+(6x-5)=37

183. ## physics

If the height of the water slide in the figure is h = 2.8 m and the person's initial speed at point A is 0.47 m/s, what is the new horizontal distance L between the base of the slide and the splashdown point of the person?

184. ## math

A right triangle is formed in the first quadrant by the x- and y-axes and a line through the point (2,3). Draw a figure that illustrates the problem. What is the area of the triangle A as a function of the x-intercept of the line?

185. ## xeco/212

Wall Street Journal in which economists are quoted using positive and normative statements. o Provide one quote and its context for both a positive and normative statement. Explain your choices. o Evaluate the statement choices of your fellow students.

186. ## math

if there are 7 boxes of items and the least amount of items in any one of the boxes is 2 and the greatest amount in any one of the boxes is 4. What are all the possible total amounts of items in the 7 boxes combined?

187. ## social studies

what is venezuela's human development index

188. ## Math

Which Statements of congruence are true and which are false and why? 177 _= 17 (mod 8) 871 _= 713 (mod 29) 1322 _= 5294 (mod 12) 5141 _= 8353 (mod 11) 13944 _= 8919 (mod 13) 67 x 73 _= 1 x 3 (mod 5) 17 x 18 x 19 x 20 _= 4! (mod 8) 83 (144 power) _= 15 (144

189. ## math

which measures is closest to 59mm? A 50mm B 65mm C 6mm D 6cm

190. ## Chemistry

how many grams of hydrogen occupy 40 ml at 300.15 K and 710 torr?

191. ## math

what is 37% of 100

192. ## Chemistry

I titrated 0.25 grams of soda ash with 43.7 mL of HCl (0.115M) and 25 mL of H2O. I am getting over 100% sodium carbonate in my answer here are my steps that I took to get the answer can somebody help me see what I did wrong? mols HCl=(0.115M)x

22. The graph of g(x) is f(x) translated to the left 8 units and up 2 units. What is the function rule for g(x) given f(x) = x²? (2 points)

194. ## Math

2(2+7)+(6x-5)=37

195. ## social studies

what challenges face venezuela today

196. ## Math

2(2x+7)+(3x-5)=37

197. ## chemistry

each element Na, Mg, Al, Si, P, S has a very big jump in ionization energies. Please explain what causes these jumps in energy?

198. ## calculus

A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 24 ft/s. a.) At what rate is his distance from second base decreasing when he is halfway to first base? b.) At what is his distance from third

199. ## math

height of a stack of 30 sheets of paper A 2mm B 2m

200. ## math

distance for a 1-hour bike ride A 800m B 8km

201. ## math

height of the tightrope in a circus A 15cm B 15m

202. ## math

which length is between 7m and 9m A 80 cm

203. ## Math

If Anna leaves her house at 11:00am and walks to her friends house located 1.34 miles away at 5 miles an hour walking speed, approximately what time will she get there?‎

204. ## math

which length is between 7m and 9m A 80 cm B 8km C 74cm D 740cm

205. ## history

what are some of the natural resources found at the grand canyon

206. ## trig

Show that the height, h, of the A-frame is equal to the expression 5sinc(1+2cosc). Im not sure what to do.

207. ## social study help plz

3. Like many absolute monarchs before him, Peter the Great strengthened his own power by limiting the power of Russian (1 point) priests. nobles. peasants. women.

208. ## algebra

Kim spent a total of $100 for a laptop and 4 blank cds. The cost of the laptop was$92. Write and solve an equation to find, c, the cost of each blank CD

209. ## chemistry

how many moles of NaBr are produced from reacting 20.05 moles of AuBr3 with excess NaCN? AuBr3 +NaCN -> Au(CN)3 + NaBr

210. ## Health 8

what happen to a person tolerance as they drink regularly?

211. ## CHEMISTRY

Explain Why The Addition Of An Electron To A Chlorine Atom Is An Exothermic Process And The Addition Of An Electron To A Magnesium Atom Is An Endothermic Processs

212. ## Algebra 2

To rationalize the denominator of 4/(2+√8), Brittany multiplied by (2-√8)/(2-√8) and Justin multiplied by (1-√2)/(1-√2). Explain why both are correct.

213. ## Physics

A volleyball is spiked so that its incoming velocity of +3.6 m/s is changed to an outgoing velocity of -16 m/s. The mass of the volleyball is 0.27 kg. What impulse does the player apply to the ball? Answer will be in kg*m/s

214. ## geometry

A swimming pool is 3 ft deep in the shallow end the bottom of the pool has a steady downward drop of 12 degrees if the pool is 50 feet long how deep is the deepest end?

215. ## math

How can i get on xtramath

216. ## math

I need a set of 12 numbers that have maximum 8, range 6, mode 6, and median 5. Any answers?

217. ## Gen Chem

epsom salts, household ammonia, and rubbing alcohol are also consumer chemicals that could be used in this experiment. what are the chemical formulas for these substances?

218. ## Physics

In a science fiction novel two enemies, Bonzo and Ender, are fighting in outer space. From stationary positions they push against each other. Bonzo flies off with a velocity of +1.7 m/s, while Ender recoils with a velocity of −2.7 m/s. (b) Determine the

219. ## Physics

A 42.4-kg boy, riding a 2.29-kg skateboard at a velocity of +5.37 m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, the boy's velocity relative to the sidewalk is 6.30 m/s, 9.09° above the

220. ## check my precalc

#1. (3x^3-4x^2-3x+4)/(x^3-5x) my answers: y-int: NONE x-int: 1, -1, and 4/3 x asymtope: x= 0 and +- square root of 5 y asym: y=3 If it crosses horiz asym: idk i need help on this #2. (x^4-7x^2+12)/(x^2-5x+4) x-int: -2, 2, and +- square root of 3 y-int: 3

221. ## math

write two equations that prove the associative property is not true for division

326. ## Physics

A 59.1 N/m spring is unstretched next to the 90 degree angle of an incline, and the system is released from rest. The mass of the block on the incline is m1 = 21.4 kg. (Neglect the mass of the pulley). If the coefficient of kinetic friction between m1 (the

327. ## College math

What do these mean? They are supposed to represent things but I don't understand them. C=2╥r for r, S=P+Prt for t, and A=2lw+2lh+2wh for h

328. ## English

I have to come up a reason for my claim help please? Thanks! My claim: technology is harmful to children and teens.

329. ## CHEMISTRY

Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 26.600 g Mass (after reaction): test tube + HCl(aq) + stir bar + capsule 25.300 g Volume of water displaced from the squirt bottle 148 mL Temperature of the CO2(g) 287.4 K Pressure (atm)

330. ## Word problem

A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.

331. ## collegemathwordproblem

When 80% of a number is added to the number, the result is 252. How do I find the number?

332. ## calculus

Find the equation of the tangent line to the graph of the function f(x)=x-3/3x-5 at x=1

333. ## Chemistry

Consider the following reaction. 2 HCl(aq) + Ba(OH)2(aq) BaCl2(aq) + 2 H2O(l) ΔH = -118 kJ Calculate the heat when 103.6 mL of 0.500 M HCl is mixed with 300.0 mL of 0.550 M Ba(OH)2. Assuming that the temperature of both solutions was initially 25.0°C and

334. ## math

23 divided by 6=3.83333333333 the 23 is my points and i divide it to find my gpa how do i round the answer

335. ## math

if f(x)=3/x+x^3 and g(x)=1-x^2 find d/dx f(g(x)).

336. ## collegemathwordproblem

One number exceeds another by 24. The sum of the numbers are 58. What are the numbers?

337. ## college math word problem

A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.

What do these mean? They are supposed to represent things but I don't understand them. C=2╥r for r, S=P+Prt for t, and A=2lw+2lh+2wh for h

339. ## college percentages

One number exceeds another by 24. The sum of the numbers are 58. What are the numbers? please help!

16. Which of the following would be the best revision of these sentences? "Our present receivables are in line with last year's. However, they exceed the budget. The reason they exceed the budget is that our goal for receivable investment was very

341. ## Chemistry

1.05 g of an unknown gas at 47 °C and 1.05 atm is stored in a 2.25-L flask. Density of the gas= 0.47g/L What is the molar mass of the gas?

347. ## Chemistry 103

2NiO(s)→2Ni(s)+O2(g) If O2 is collected over water at 40.0C and a total pressure of 739mmHg , what volume of gas will be collected for the complete reaction of 24.18g of NiO?

348. ## math word fu

A new car worth 45K is depreciating in value by 5K per year. How can I write a formula that models the cars' value,y, in dollars, after x years?Then using the formula determine after how many years the cars' value will be 9K.

349. ## Math

Julie is digging a square area in her backyard for a vegetable garden. If the area is 52 square feet, what is the approximate length of one side of her garden? 6 square feet 7 square feet 8 square feet 9 square feet 7 square feet is my answer, what's

350. ## NEED HELP ASAP, college math

Find the future value! Periodic payment: \$650.00 Payment interval: every month Term: 19 years, 2 months Interest rate: 4.75% Compound frequency: monthly