# Questions Asked onSeptember 19, 2012

1. ## Physics

During practice, a soccer player kicks a ball, giving it a 32.5 m/s initial speed. It travels the maximum possible distance before landing down field. (a) How much time does the ball spend in the air? (b) How far did the ball travel?

2. ## Organic Chem

What is the product of C13H10+CH3O

3. ## Math

I need to make a bar graph using the data set of my last problem. Data Set: 5,7,7,7,11,12,12,13,14,15,16,18

4. ## calculus

Find c for Rolle's Theorem for f(x) = x3 – 12x on [0,2 3 ]

5. ## pre-calculas

what is the function whose graph is the graph of y=ã+4, but is reflected about the the x-axis. y=

6. ## statistics

Healthy breakfast contains the rating of 77 cereals and the number of grams of sugar contained in each serving. A simple linear regression model considering "sugar" as the explanatory variable and "rating" as the response variable produced the following

21/2m=11/5

8. ## Math

Find the perimeter of semicircle d

9. ## Coporate Finance

Exotic Cuisines Employee Stock Options As a new graduate, you've taken a management position with Exotic Cuisines, Inc., a restaurant chain that just went public last year. The company's restaurants specialize in exotic main dishes, using ingredients such

10. ## Math

solve the ivp dy/dx = 1/(sqrt(1-x^2)) with initial condition y(sqrt(3)/2)=0

11. ## English

1. They will come together to the office. 2. They will come to the office together. (Which one is right? Are both right? Which one is commonly used?)

12. ## Chemistry

chloroform (chcl3) has a Hvap of 29.6 kj/mol and its boiling point occurs at 61.7c. the specific heat capacity of liquid chloroform is 0.622 J/gC while that of the gas is 0.714 J/gC. How much energy (in kJ) needs to be removed to condense 250 g of gaseous

13. ## physics

A fire hose ejects a stream of water at an angle of 31.5 ° above the horizontal. The water leaves the nozzle with a speed of 24.3 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the

14. ## chemistry

Calculate the amount of heat required to heat a 3.7{\rm kg} gold bar from 30^\circ {\rm C} to 61^\circ {\rm C}. Specific heat capacity of gold is 0.128 \rm J/g ^\circ C

15. ## Maths

a cylindrical tin with one end opened has diameter of 440mm and height 50mm.What is the total surface area

16. ## English

Volunteering at a day-care center. I have worked at a day-care center. I went there once a month. There were a lot of things to do. I took care of young children. I played with them. I changed their diapers and clothes. I washed the kids, too. I like the

17. ## chem

Potassium nitrate has a lattice energy of -163.8 kcal/ mol and a heat of hydration of -155.5 kcal/ mol . How much potassium nitrate has to dissolve in water to absorb 105kj of heat? Answer in kg.

18. ## college-physics

how to write scientific report on physics

41. ## history

1-Which of the following statements about literary movements is NOT true? (1 point) A A literary movement is a period that shares a particular set of ideas, concerns, or characteristics. B Ideas, concerns, or characteristics may be shared by literary

42. ## Math

A man wants to remove a tall pine tree from his yard. Before he goes to home depot, he needs to know how tall an extension ladder he needs to purchase. He measure the shadow of the tree to be 225 feet long. At the same time he measures the shadow of a 4

43. ## language arts

Identify the term that correctly identifies the italicized word(s) in each sentence. 7. Listening to the mix CD my brother made for me, I began to hope he would make me another. (1 point) adverbial phrase gerund phrase infinitive phrase participial phrase

44. ## soc315 cross cultural

1. Political Culture/Policy Preferences Think about the war between the United States and Iraq. To what degree, if any, did political culture play a role in the decision to go to war, the public’s support of the war, and how public officials discussed

45. ## Physics

Bob jumps from a 2.0 m high table and wants to jump over a 0.85 m radius ball. How fast must Bob move horizontally to not land on the ball? If we use kinematics equations for projectile, the answer is 2.66 m/s; however, with this velocity the person will

46. ## geometry

Fin the volume of a triangular prism with height 16cm, base (a right triangle with sides 7cm, 8cm, and 10cm and the right angle between shorter sides.)

47. ## Maths

Integral of 1/root(2x-x^2)dx

49. ## math

Janet took a standardized test that contained 328 questions. She answered 75% of the questions. How many questions did she answer?

50. ## Literary Analysis and Composition I

1. What roles do the adults or older figures play in the lives of the various narrators? Select a figure from each of the four memoirs and write one sentence answering the question for each memoir. Answer: 1. Barrio Boy- 2. A Cub Pilot- 3. No Gumption- 4.

51. ## Science

you have 100ml of water in a beaker. you add 20 ml of table salt. the water level rises to only 105 ml.

52. ## chem

Are bond energies (single and multiple bonds) applicable only to gas phase?? For instance, I can use the bond energy data to calculate for enthalpy of reaction for the formation of water: 2 H2(g) + O2(g) -> H2O(g) But I can't directly use it to calculate

53. ## math

Determine , apermutation or combination 1.The winner and second and third placed in contest woth 10 finalists . 2.Selecting nine books to check out of the library from a reading list of twelve . 3.Selecting three of fifteen flavours of ice cream . 4.An

54. ## Physics

A car goes around a curve on a road that is banked at an angle of 33.5 degrees. Even though the road is slick, the car will stay on the road without any friction between its tires and the road when its speed is 22.7 m/s. What is the radius of the curve?

55. ## physics

If an 8N force is applied to a wall for 2 minutes and the wall does not move, how much work is done?

56. ## physics

find the value of 60jule per minute on a system which has 10cm, 100gm and 1minute as fundamental unit

58. ## chemistry help!

Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 105 kJ of heat?

59. ## algebra

simplify 36/3*4-(-2) ?

60. ## physics

How much work does gravity do on a 0.120-kg ball falling from a height of 17.0 m?

61. ## science

if the length of the sting is axactly 9.84cm what is the nearest centimeter and to the nearest tenth of a centimeter

75. ## phyics

find the acceleration if the velocity changes from: a) 2m/s to 4m/s in 4s b) 5m/s to 10m/s in 2s c) 100m/s to 120m/s in 5s d) 86m/s to 94m/s in 4s e) 21m/s to 35m/s in 18s thank you!

76. ## Physics

A beam of X-rays with a wavelength ƒÜ of 0.179nm is directed at an iron crystal whose planes have a spacing of 0.1013nm. How many diffraction peaks (each arising from a different order n) are possible? I'm really not sure how to go about solving this.

77. ## math

in a class one quarter of students have blonde hair and brown eyes and one third have brown eyes and blonde hair what fraction of the class in total have brown eyes

78. ## Chemistry

How many moles of H_2 are needed to produce 13.27g of NH_3?

79. ## Social studies

Why did mound builders build burial mounds

80. ## physics

if a juggernaut decelerates at 9m/s^2, how long will it take him to stop from 45m/s?

4s=-28

83. ## math

what is the pattern in the series of numbers 94,26,___,14,10

84. ## physics-batteries

how does the current through the flashlight using good batteries compare to the current using bad batteries?

85. ## Math

Write a4-digit number that has a hundrens digit of 6, a tens digit of 3, and 9 for each of the other digits.

86. ## physics

a) a car does an emergency stop from 120000m/s in 3s. what was it's deceleration? b) what was the car's average velocity and what was the stopping distance? thank you

87. ## All

Any Websites that have free printable worksheets??

88. ## Math

A pet store has 15 rabbits and 25 cats. How many more cats than rabbits does the store have?

89. ## English

1. Copy the famous pictures in museums. 2. Copy the famous pictures of museums. 3. In museums, copy the famous pictures. (Does #1 mean #2 or #3? Is "in museums" an adjective phrase or an adverbial phrase? Thank you.)

90. ## governemtn

In a large country like the United States, _____ is more practical than _____.

91. ## Finance

You are planning to save for retirement over the next 35 years. To do this, you will invest $770 a month in a stock account and$370 a month in a bond account. The return of the stock account is expected to be 9.7 percent, and the bond account will pay 5.7

92. ## Physics

A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.15 s later. (a) Assuming constant acceleration, what was the magnitude of the car's acceleration before impact? _______ m/s2 (b) How fast was

93. ## Physics

A stone is thrown vertically upward from outside a window, with an initial velocity of 24.0 m/s. It moves up, and then down to the ground 420 m below the point where it started. Let up' be positive. (a) What is the maximum height above the window to which

94. ## earth science

descibe the advanages of plotting data in graph form

95. ## geometry

Naomi draws a portion of a figure as shown. She wants to construct a line segment through R that makes the same angle with as .

96. ## English

e.g. Nasrredin and the Fish How do you pronounce "Nasrredin"?

97. ## Science

Which of the following is an organic molecule? A. Oxygen gas B. Sucrose C. Iron oxide D. Water

98. ## Physics

A ball is thrown vertically upward and comes back down. Total time of 7.95 s in air. What is its initial velocity? Neglect air resistance.

99. ## statistics

Suppose a college's SAT scores are normally distributed with mean 1000 and standard deviation 1 for students above 1200. What percentage of students is eligible for scholarships

100. ## Chemsitry - Van Der Waals

The constants "a" and "b" in the van der waals equation are "empirical coefficients". What exactly does that mean? Show that the units for "a" and "b" are appropriate for the the Van der Waals equation?

101. ## Chem-Gases

Explain how attractive forces between molecules decrease the pressure of a gas?

102. ## Chemistry

identify a chemical reagent that can be used to distinguish CaCl2 (soluable) from CaCO3 (insoluable). What is the distinguishing observation?

103. ## English

I am diagramming the sentence: It was excellent from beginning to end. I know the subject is "It", verb "was", subject complement is "excellent" and, I think "from beginning to end" is a prepositional phrase. Am I right or please corrent me.

104. ## history

Explain the GATT principle of nondiscrimination.

105. ## science

Chemical fertilizers stimulate plant growth; but if the concentration is too high, they may damage roots. What precautions concerning chemical fertilizers must a gardener take?

9,000+600+50+4 in standard form

107. ## math

Average rate of change: h(x)= x^3 -0.5e^x at [0,1]

108. ## Math

The half-life of radioactive strontium-90 is approximately 32 years. In 1961, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. How many years does it take until only 8

109. ## Precalculus

What is the doubling time of prices which are increasing by 5 percent per year?

110. ## Math

What is the doubling time of prices which are increasing by 5 percent per year?

111. ## math,social studies and heaalth

I am in middle school and I want to know what my grade point average is. Do you know any websites where I can calculate my grade point average. Thanks.

112. ## Math

Explain how to draw a picture to find 3 x 0.9. Grandma needs help for her 5th grade granddaughter!

113. ## Physics

Find the magnitude of the acceleration (in m/s2) for an electron in a uniform electric field with a magnitude of 100 N/C. and Find the time it takes (in sec) for an electron initially at rest in a uniform electric field of 110 N/C to reach a speed of 0.01c

114. ## lanuage arts

What is the simple subject or predicate in the phrase the big yellow bird?

115. ## physics

Secret agent Samantha Bond, 43.00 kg, has just ignited her jet powered skis at the foot of a 10.0 degree slope that rises in height by 50.0 m. The skis have a thrust of 226.0 N. When she gets to the top of the slope, she keeps the skis at 10.0 degrees as

116. ## physical science

a 1kg object has kinetic energy of 1J when its speed is?

117. ## physical science

a weightlifter raises a 70 kg barbell from the floor to a height of 2.2m in 1.2s. What was his average power output during the lift?

118. ## Physics

Find the magnitude of the acceleration (in m/s2) for an electron in a uniform electric field with a magnitude of 100 N/C. and Find the time it takes (in sec) for an electron initially at rest in a uniform electric field of 110 N/C to reach a speed of 0.01c

119. ## physics

A man walks 3 miles east in 1 hour at a constant velocity, then walks 2 miles east at a constant velocity in 20 minutes, then 2 miles east at a constant velocity in 40 minutes, then rests for 1 hour and then turns around and walks 8 miles west in two

120. ## math

consider the equation x^2+kx+1=0 a single fair die(dice)is rolled to determine the value of the middle coefficient, k. the value for k is the number of dots on the upper face of the die. what is the probability that the equation will have real, unequal

One of two supplementary angles is 4 times the other. Find the larger angle.

122. ## Honors Geometry

If

Kiara bought 78 stickers .She bought 6 strips of 10 and some singles How many singles did she buy.? Write an equation for each combination of singles and strips.

124. ## physical sciencei

is the work needed to bring a car's speed from 0 to 10 km/h less than, equal to or more then the work needed to bring its speed from 10 to 20 km/h? if the amounts of work are different, what is the ratio between them?

125. ## physics

A rowboat crosses a river with a velocity of 4.23 mi/h at an angle 62.5o north of west relative to the water. The river is 0.543 mi wide and carries an eastward current of 0.73 mi/h. How far upstream is the boat when it reaches the opposite shore?

126. ## chemistry

How many milliliters of a 0.16 M HCl solution are needed to react completely with 4.8 g of zinc to form zinc(II) chloride? Answer in units of mL

127. ## Math

What is the area of a square with the same perimeter as a regular hexagon with area 24 square root of 3. Can you please help me wodrk this?

128. ## history

why did word war two become worldwide?

129. ## pharmacy calculations

1.a newborn weighs 3,000 g. what is his weight in kilograms? 2.a newborn weighs 3,000g. what is his weight in pounds? 3.a stock bottle contains 2.5 liters of solution how many 2oz bottles can be filled using this solution? 4.you need to give 6mg of a drug.

130. ## french

question: Is this correct? Elle est partie pour Paris hier.

131. ## chemistry

What volume of 0.402MK3PO4 is required to react with 43 mL of 0.507 M MgCl2 according to the equation 2K3PO4 + 3MgCl2 ! Mg3(PO4)2 + 6KCl Answer in units of mL

132. ## chemistry

What is the mass in grams of 9.00×10^14 iron atoms, each having a mass of 56 { amu}?

133. ## chemistry

Silver nitrate (AgNO3) reacts with sodium chloride as indicated by the equation AgNO3 + NaCl ! AgCl + NaNO3 . How many grams of NaCl would be re- quired to react with 511 mL of 0.38 M AgNO3 solution? Answer in units of grams

134. ## chemistry

How many milliliters of a 0.5 molar HCl solution are needed to react completely with 11 grams of zinc according to the following equation? ? HCl + ? Zn ! ? ZnCl2 + ? H2 Answer in units of mL

135. ## math

0.21 dividen BY 1.25

136. ## chemistry

We add excess NaCl solution (58.44 g/mol) to 56 mL of a solution of silver nitrate (AgNO3 169.88 g/mol), to form insoluble solid AgCl. When it has been dried and weighed, the mass of AgCl (143.32 g/mol) is found to be 1.25 grams. What is the molarity of

137. ## math

1.3:75 to a percentage 2.1:30 to a percentage 3.4/8 to a ratio 4.20/100 to a ratio 5.solve for x: 1.7:8 ::21:x 2.6:10::x:40

138. ## physical science

a yo-yo is swung in a vertical circle in such a way that its total energy KE and PE is constant. At what point in the circle is this speed maximum? A minumum? why? (b) if the yo-yo has a speed of 3 m/s at the top of the circl, whose radius is 80 cm, what

139. ## chemistry

We add excess Na2CrO4 solution to 27.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.420 grams. What is the molarity of the AgNO3 solution? Answer in

140. ## chemistry

A solution of sodium hydroxide is standard- ized against potassium hydrogen phthalate (KHP, formula weight 204.2 g/mol). From the following data, calculate the molarity of the NaOH solution: mass of KHP 1.744 g; buret reading before titration 0.13 mL;

141. ## math,social studies and health

Do you know any other websites where I can calculate my grade point average. Thanks.

142. ## Chemistry

I need to calculate the redox potential for the following: 1/2 O2 + 2H+ + 2e- H2O I'm using the formula E = E'_0 + RT\nF ln ([electron acceptor]/[electron donor]) The electron acceptor is H+, so I can use the concentration of that which is indicated by the

143. ## chemistry

Listerine mouthwash is 21.6%ethyl alcohol by volume. What mass of ethanol is contained in 20.0 mL of mouthwash? (The density of ethanol is 0.789 g/mL.) Answer in units of grams

144. ## chemistry

What mass of silver nitrate (AgNO3) is re- quired to prepare 400 g of a 3.50% solution of AgNO3? 1. 14 g 2. 0.00875 g 3. 114.28 g 4. 1400 g

145. ## chemistry

In choosing a primary standard we generally choose something that 1. All of these are properties we want in a primary standard. 2. has a low percent purity. 3. None of these are properties we want in a primary standard. 4. has several different possible

146. ## chemisry

An unknown amount of water is mixed with 350 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 52.5 mL of 6 M HCl. Calculate the concentration of the di- luted NaOH solution. Answer in units of M

147. ## Chemistry

suppose the density of 100.0 mL of some liquid was found to be 0.815 g/mL. What would be the specific gravity of 20.0 mL of this liquid?

148. ## chemistry

What volume of water was added to the 350 mL of NaOH solution? Assume volumes are additive. Answer in units of mL

149. ## biology

What is the function of macronucleus and micronucleus in a paramecium?

150. ## physics

When baseball players throw the ball in from the outfield, they sometimes allow it to take one bounce before it reaches the infield on the theory that the ball arrives sooner that way. Suppose the angle at which a bounced ball leaves the ground is the same

151. ## chemistry

If you analyzed each of the substances NaBr, KOH, CrPO4, Pb(OH)2, RbCl, LiNO3 by mixing them with water in a beaker, which substances would be most likely to fall to the bottom of the beaker? 1. KOH and Pb(OH)2 2. CrPO4 and LiNO3 3. NaBr 4. RbCl and LiNO3

152. ## chemistry

A variety of ions including Na+, K+, NH4 +, Pb2+, Fe2+, NO3 −, Cl−, Br−, S2−, and CO3 2− are mixed in a beaker of water. If you analyzed the precipitates, which substances would you expect to find? 1. PbS and FeCO3 2. FeCl2 and KCl 3. NaBr and

153. ## chemistry

Consider the following reaction CaCl2(aq) + 2Ag2SO4(aq) ! CaSO4(?) + 2AgCl(?) .Which of the following statements is true? 1. Both CaSO4 and AgCl will precipitate from solution. 2. Neither CaSO4 nor AgCl will precipitate from solution. 3. CaSO4 will

154. ## chemistry

Which of the following aqueous solutions should form a precipitate with aqueous Fe(NO3)3? 1. KNO3 2. KCl 3. K2SO4 4. KOH

155. ## chemistry

Which of the following aqueous solutions should NOT form a precipitate with aque- ous Ba(NO3)2? 1. K3PO4 2. K2SO4 3. K2CO3 4. KOH

156. ## chemistry

Although soluble barium compounds are toxic, suspensions of insoluble barium sul- fate are routinely swallowed for upper gas- trointestinal X-ray studies. Why is barium carbonate not used? 1. Stomachs contain HCl and all carbonates dissolve in acid.2.

157. ## chemistry

Which one of the following substances is LEAST soluble in water? 1. BaCO3 2. KSCN 3. Na3PO4 4. RbOH 5. LiBr

158. ## physical science

a 70 kg man and 50 kg woman are in a boat when its motor fails. the man dives into the water with a horizontal speed of 3 m/s in order to swim ashore. if he changes his mind, can he swim back to the boat if his swimming speed is 1 m/s? If not, can the

159. ## chemistry

Which response includes all of the following LiOH, KOH, Ni(OH)2, Mg(OH)2, Ca(OH)2 that are insoluble bases, and no others? 1. Mg(OH)2 2. LiOH, Mg(OH)2, Ca(OH)2 3. Mg(OH)2, Ca(OH)2 4. Ni(OH)2, Mg(OH)2 5. LiOH, Ni(OH)2

160. ## chemistry

Which of the species KClO2, NH4Br, HNO2, PbS is/are insoluble in water? 1. NH4Br and NH3 2. KClO3 3. PbS 4. HNO2 5. All of these

161. ## chemistry

Suppose that you wanted to be sure that a metal ion, any metal ion, would dissolve in water. What salt of the metal ion compound would you choose? 1. the hydroxide (OH−) salt of the metal ion 2. the carbonate (CO2− 3 ) salt of the metal ion 3. the

162. ## chemistry

An ion can be removed from an aqueous solu- tion by 1. the formation of a gas that escapes. 2. formation of a precipitate. 3. the formation of what is essentially a nonelectrolyte. 4. All of these

163. ## chemistry

HBr is mixed with water. Which is the best description of what you would expect to find in the solution? 1. Br1−, OH1−, and water molecules 2. HBr molecules and water molecules 3. H2Br+, OH1−, and water molecules 4. H3O+, Br1−, and water molecules

164. ## chemistry

HCN is mixed with water. Which is the best description of what you would expect to find in the solution? 1. CN+, OH−, and water molecules 2. HCN molecules and water molecules 3. H2CN+, OH−, and water molecules 4. HCN molecules, H3O+, CN1−, and water

165. ## Physics

Two objects are connected by a light string that passes over a frictionless pulley. The incline is frictionless, m1 = 2.00 kg, m2 = 4.00 kg, and theta= 60.0°. (b) Find the accelerations of the objects. Magnitude (c) Find the tension in the string. N (d)

180. ## PHYSICS!

A diver leaves a 3m board on a trajectory that takes her 2.5m above the board and then into the water a horizontal distance of 2.9m from the end of the board. At what speed did she leave the board? At what angle did she leave the board?

181. ## Organic Chemistry

cyclohexane=1.4264 toluene=1.4967 at 20˚C Mixture=1.4563 at 20˚C Assuming that the relationship between refractive index and concentration is linear, calculate the composition of the mixture. What do I do? Formula?

182. ## English

Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina The brisk breeze caused the sheets on the line to ____

183. ## math

Draw and label line BN. Draw and label point T on it

184. ## Geometry

1.If two different lines are perpendicular to the same plane, they are: a. Collinear b. Coplanar c. Congruent d. Consecutive I think the answer is B, is that correct? Also, this: 2. Express 3 radical 75 plus radical 27 all over3 in radical form. I

Describle the following cellular structures and functions?

186. ## Math

A 51 meter rope is cut into 2 pieces so that one piece is 6 meters longer than four times the shorter piece. Find the lengths of both pieces.

I have prealgebra with order of operations with a line dividor with a fraction line/divider. It says: 94-6 ____ 66(divided by) 6

188. ## math

90 volts are applied to a circuit with 3 resistors resistor 1=20 ohms resistor 2=40 ohms and resistor 3=60 ohms how much power will be dissipated by resistor 1

189. ## Science

While rearranging a dorm room, a student does 378 J of work in moving a desk 2.8 m. What was the magnitude of the applied horizontal force?

190. ## physics

A 3800 kg car travels around an unbanked corner at the recommended speed of 65 km/hr. the radius of curvature is 80 m. a) what is the force that the road exerts on the car to keep it in motion around the corner? b) what force would the road need to exert

191. ## social studies

Ranchos callampas and favelas are all slum areas in

192. ## Algebra

Complete the square to form a perfect square trinomial. X^2+4x+____ How do I do this?

193. ## math

how many centimeters are in one millimeter? Thanks!

asked by i luv 1 direction

200. ## English

Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina Although I may hurt your feelings my conscience _____ me

201. ## Physics

A speedy tortoise can run at 0.09 m/s, and a hare can run 20 times as fast. In a race, they start at the same time, but the hare stops to rest for 2.4 min, so the tortoise wins by a shell (20 cm). How long does the race take? Answer in units of s What is

202. ## social studies

what is the mayas imformation?

203. ## math

find the mystery number, it is a 4 digit odd number, all the digits are different, none of the digits are 0-9, the tens digit is twice the ones digit, and the hundreds digit is twice th tens digit. the thousands digit is one less than the hundreds digit?

204. ## math

You are shopping for single-use cameras to hand out at a party. The daylight cameras cost $2.75 and the flash cameras cost$4.25. you must buy exactly 20 cameras and you want to spend between $65 and$75, inclusive. Write and solve a compound inequality

222. ## Math ASAP

1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 6.22=x%(-34) X=-748 7.x%(-17)=-35 8.-680 % x =53 X=-13

223. ## algebra 1 I need help immediately

you have 15 coins, nickels and dimes. d=the number of dimes. write a simplified expression in terms of d for the total amount cents that you have. show work and explain

224. ## Math

Write each ratio as a fraction in simple form.

225. ## english

Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina Since Tom is both smart and disinterested I think he is

226. ## math

There is a blue ribbon, a yellow ribbon, and a green ribbon. susan did now wear the yellow ribbon or the green ribbon. Jean did not wear the gren ribbon. Clare wore either the blue ribbon or the green ribbon. what color ribbon did each girl wear?

227. ## help immeditaly

you have 15 coins, nickels and dimes. d=the number of dimes. write a simplified expression in terms of d for the total amount cents that you have. show work and explain

I have an 8 in the ten thousands place, My hundreds digit is greater then my ten thousands digit, My ones digit is the number of right angles in a rectangle, my tens digit is the difference between thirteen and my ten thousands digit, my value is less that

229. ## Science

Batteries change ____ energy into _____ energy Chemical and electric Converting the suns energy into electricity does not work if it is ____ time or there is ___ weather night and bad? The suns energy can be turned into electrical energy or ___ energy

230. ## Easy math

Write each ratio as a fraction in simple form. 12 kittens to 15 puppies

231. ## Math

1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 6.22=x%(-34) X=-748 7.x%(-17)=-35 8.-680 % x =53 X=-13

232. ## Chemistry

What is the value of the rate constant for a reaction in which 75.0 percent of the compound in a given sample decomposes in 80.0 min? Assume first order kinetics. Use the integrated rate law for a first order reaction. Remember at 75 percent reaction, 25

233. ## english LIT

HELP Please help me what this quotes mean then I have to write WHAT I think about it. i already get eight of them but idont get rest of them. 1) Or I will become engulfed with all I did or I did not do, with what should have been and what cannot be helped

234. ## us history

why do geographers divide areas into regions

235. ## social studies

what country is made up of more than 7000 islands

236. ## math

Write each ratio as a fraction in simple form 12 kites to 15 bikes

237. ## math

if greg eats 3 red jelly beans and 6 yellow ones how many yellow were there originally? the ratio is 4:5

238. ## Chemistry

What is the value of the rate constant for a reaction in which 75.0 percent of the compound in a given sample decomposes in 80.0 min? Assume first order kinetics. Use the integrated rate law for a first order reaction. Remember at 75 percent reaction, 25

239. ## social studies

what country is made up of more than 7000 islands

240. ## Physics

A bullet of 10g enters a target at 100 ms-1 and leaves it 0.01 s later. Calculate: i. The rate of change of momentum of the bullet ii. The resistance offered by the target iii. The loss of kinetic energy of the bullet iv. The deceleration of the bullet v.

241. ## AP Chemistry

When 0.055 moles of lead(II) nitrate are dissolved in enough water to make 803 mililiters of solution, what is the molar concentration of nitrate ions? Answer in units of M.

242. ## AP Chemistry

How many grams of sucrose (C12H22O11) must be dissolved in 60 g water to make a solution in which the mole fraction of sucrose is 0.4? Answer in units of g.

243. ## AP Chemistry

What volume of 3.16 M HNO3 is required to prepare 524 mL of a 0.2 M HNO3 solution? Answer in units of mL.

244. ## AP Chemistry

Sulfuric acid (H2SO4) is prepared commercially from elemental sulfur using the contact process. In a typical sequence of reactions, the sulfur is ﬁrst burned: S + O2 → SO2 , then it is converted to SO3 using a catalyst: 2 SO2 + O2 → 2 SO3 . The

245. ## AP Chemistry

For the reaction ? N2H4+? O2 →? N2+? H2O , what is the maximum amount of N2 (28.0134 g/mol) which could be formed from 14.75 g of N2H4 (32.0452 g/mol) and 4.31 g of O2 (31.9988 g/mol)? Answer in units of g

246. ## geometry

if the length of each edge in a cube is increased by the same percent and the result was a cube that had 25% more volume than it originally had, by what percentage were the edges increased

247. ## Physics

A hiker drops a heavy stone over a cliff and hears it strike the cliff base 2.8 seconds after dropping it. If the velocity of sound is 335 m/s, how high is the cliff?

248. ## AP Chemistry

For the reaction ? ZnS + ? O2 →? ZnO+? SO2 , what is the maximum amount of ZnO which could be formed from 14.06 g of ZnS and 5.56 mol of O2? Answer in units of g

249. ## algebra 2

list all solutions if x^(4)+x^(3)-11x^(2)+9x+20=0 and if one of the roots is x=2-i

250. ## physics

At 2:15 pm a passenger looks over at the speedometer and notices that they are going 55 miles per hour DUE WEST. at 2:37 pm this very passenger hears a siren and looks over the speedometer again; she notices that they are going 83 mph, DUE WEST. What was

251. ## Clean Energy

What are some types of clean enregy and what are they? I have geothermal - heat from the Earth, hydropower - water power, wind power, biomass (I don't know what that is), and solar power - sun power. I would really like some help.

252. ## AP Chemistry

For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 9 mol of C6H6 and 2.81 mol of O2. Answer in units of mol

253. ## algebra 2

solve for x: (exact answers) 5^(2x+1)-26(5^x)+5=0

18-(-18)

255. ## AP Chemistry

For the reaction ? Al + ? CuSO4 ↽⇀? Al2(SO4)3+? Cu a maximum of how many moles of Al2(SO4)3 could be formed from 5.95 mol of Al and 1.31 mol of CuSO4? Answer in units of mol.

18(-18)

257. ## AP Chemistry

In the reaction below, 16 g of H2S with excess O2 produced 8 g of sulfur. ? H2S + ? O2 → ? S + ? H2O . What is the percent yield of sulfur? Answer in units of %

258. ## AP Chemistry

14 carat gold has a purity of 58.3%. How many moles of gold are in 172 grams of 14 carat gold? Answer in units of moles

259. ## AP Chemistry

If a metal ore contains 21.4% pure metal, how many pounds of pure metal can be obtained from 59 pounds of metal ore? Answer in units of pounds

260. ## Math (Need help FAST!)

Determine if two ratios are equivalent Complete using < > = 5/20 [ ] 4/10 How did YOU do it?

261. ## Physics

During a baseball game, a batter hits a high pop- up. If the ball remains in the air for 6.0s, how high does it rise? Hint: calculate the height using the second half of the trajectory

262. ## math

An elephant eats about 500 pounds of grass and leaves every day. There are 2 Africa elephants and 3 Asian elephants living in the City Zoo. How many pounds of grass and leaves do the zookeeper need to oreder each week to feed all the elephants?

263. ## Social Studies 8R - HW Qs. Help! (FAST!)

The north lost more soldiers in the Civil War than the South did. Why was it easier for the north to recover from the war?

264. ## Physics

An airplane is flying horizontally with a constant velocity of 160 m/s at an altitude of 5100 m when it releases a package. a. How long does it take for the package to reach the ground? (Ignore air resistance.) b. What is the distance between the airplane

265. ## Science 8R - HW Help!

Science 8R HW - Using the steps of the Scientific Method solve a problem that you may have (for example, 1. How can I get my little brother to stop eating my homework) I can't think of one.... please help! any ideas or suggestions???

266. ## math

some kangaroos can cover 30 feet in a singke jump! if a kangaroo could jump like that 150 times in a row, how much farther would it need to go to cover a mile? (1 mile = 5,280 feet)

267. ## English

helb back by ___ winds the plane arrived two h ours late adverse? For a long time I thought he was a good and sincere person but I finally saw that he was no more than a(n) constrain You and Lucy will never settle your quarrel unless you _____ each other

268. ## GEOMETRY

What is the distance between points (3, 1) and (0, –5)? Round to the nearest tenth.

269. ## CIS 312 Information systems for Managers

What can a company do to prevent incidences of theft or harm to its company's resources including data and humans?

270. ## physics

A chain of ocean waves crests at 35m apart , 15 miles/hr. What is the frequency of the waves?

271. ## social studies

Were the western plains Indians or the Pacific Northwest Indians more dependent on one natural resource?

272. ## math

Determine if two ratios are equivalent Complete using < > = 3/5 [ ] 18 out of 30 can someone help me learn this?

273. ## Math

A camp cook found a recipe for scones that makes 18 scones. The recipe calls for 3 cups of buttermilk in the dough plus 2 fluid ounces of buttermilk to brush on top of the scones.The cook is out of buttermilk.How many quart containers of buttermilk does

274. ## math

a rope is cut into two pieces. one has a length of 37 feet. if the other piece has a length of x what was the total lengh of rope in feet before it was cut?

3k(-xy+-5)

276. ## Math

Determine if two ratios are equivalent Complete using < > = 2:4 [ ] 7:36

277. ## Science

Xylem dries up and dies what is the effect

278. ## Algebra 1

During a sale, a music store is selling all drum kits for 20 percent off. Preferred customers also receive an additional fifteen percent off. Write a composite function to represent the final cost of a kit that originally cost c dollars. Find the cost of a

279. ## Chemistry

A mixture of ethane and ethene occupied 35.5 L at 1.000 bar and 405 K. This mixture reacted completely with 110.3 g of O2 to produce CO2 and H2O. What was the composition of the original mixture? Assume ideal gas behavior Im pretty sure i use dalton's law

280. ## Science

Humans have increased their food supply by using fertilizers.

2t-4; t=6

282. ## Science

What concerns you have about the overall safety of the food you eat?

283. ## Algebra 2

Absolute Value Equations Will someone please check to see if I am doing this correct? 1.|7x+2|=10 x= (8/7) or (-12/7) 2.|3x-5|=-1 I got "no solution" because "d" cannot be negative. 3.|x^2-2x-16|=8 x= 6,-4 or x=4,-2 4.|3x-2|=7 x= 3 or (-5/3)

284. ## chemistry

how many silver coins weighing 26g each would take to provide 5 moles of silver

285. ## Chemistry

Calculate the frequency of radiation with a wavelength of 1.27 × 104 °A (angstroms). Answer in units of s^−1. I got 8.34080793e-25. Is that right?

286. ## math

the sum is 19.my hundrends digit is 4 less than 7. my thousands digit is the sum of 3 and 1. the other two digit are the same number. what four digit number am I?

287. ## math

If you have 30 white lego bricks, 42 red lego bricks, and 45 black lego bricks and you pull them out of a bag one at a time until one is left, what is the probability the last brick will be black

288. ## Math

The distance to fly direct from Detroit to Los Angeles is about 1,960 miles.The flight takes 4 hours 53 minutes.What is the plane's average speed in feet per second to the nearest foot per second?

289. ## Chemistry

A mixture of iodine solid and sodium chloride ( Hint: iodine is not soluble in water) What method(s) can I use to separate the mixtures? Filtration Evaporation Centrifugation Decant Magnetic attraction Paper chromatography Distillation

290. ## algebra

Determine whether y varies directly with x. If so find the constant of variation k and write the equation. x y 7 11 8 13 9 15 10 17 Can someone please help me and explain

291. ## Physics

A child’s toy consists of plastic attached to a spring. The spring is compressed against the floor a distance of 1.48 cm, and the toy is released. The acceleration of gravity is 9.8 m/s2 . If the toy has a mass of 109 g and rises to a maximum height of

292. ## Physics

When a 58 gram tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?

293. ## physics

Two cars both travel along a straight road Northbound. At t = 0, the car 1 is 190.6 m further north than car 2. Also at t = 0, car 1 is travelling at 24.3 m/s, and car 2 is travelling at 5.7 m/s. Car 1 is slowing down with an acceleration of magnitude 0.28

294. ## Math

how could you use point I to estimate the midpoint of each side of the rectangle?

295. ## Chemistry

Ethyl butyrate is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst. i) Given 8.45g of butanoic acid

296. ## History

When did Purtains arrive in America?

297. ## math

reason which is greater the greatest whole number with 05 digits or the least whole number with 06 digits

298. ## government

campaign spending tends to be gratly more important for republicans or democrates or challengers and non incumbents raer than incumbents

299. ## Dressmaking

a houndstooth jacket would work well with which of the following bodylines?

300. ## calc 3

Find all partial derivatives? v = (xy)/(x-y) vxx= vxy= vyx= vyy=

301. ## ap us history

how can i put all these events and make it to a essay -engishman rights -taxes -independence -boston tea party -tea act -whiterights

302. ## Physics

What is the direction of the particle’s velocity at time t = 3.4 s? Please specify this direction as an angle (between −180 ◦ and +180 ◦ ) from the x axis. Answer in units of ◦

303. ## history

2 big important facts about the 13 amendment.

304. ## calculus

Find the derivative of the function using the definition of derivative. g(t)= 9/sqrt(t) g'(t)= state the domain of the function and the domain of the derivative (use interval notation)

305. ## Physics

A stone is thrown vertically upward from outside a window, with an initial velocity of 24.0 m/s. It moves up, and then down to the ground 420 m below the point where it started. Let up' be positive. (a) What is the maximum height above the window to which

306. ## Physics

A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.15 s later. (a) Assuming constant acceleration, what was the magnitude of the car's acceleration before impact? _______ m/s2 (b) How fast was

307. ## university of the west indies

The pH of a 0.164 M aqueous solution of dimethylamine is 11.98. Write the ionization equation, calculate the values of Kb and pKb and comment on strength of the base....

308. ## History

Thank you Ms. Sue for answering my question Would you please do this to this is the las one! Describe 3 causes where purtains showed their intolerance for people with other beliefs?

309. ## English

I am writing my essays and I wrote them but i not know how to start the beginnings of them. this on movie smoke signals. i am writing on themes, but i cant start intro like "in the film .. because someone else be doing that for movie review, so i not know

310. ## algebra

Susan had a $10 coupon for the purchase of any item. She bought a coat that was on sale for half its original price. After using the coupon, Susan paid$125 for the coat before taxes. What was the original price of the coat?

311. ## Physics

Someone in a car going past you at the speed of 23 m/s drops a small rock from a height of 1.9 m. How far from the point of the drop will the rock hit the ground? The acceleration due to gravity is 9.8 m/s 2 . Answer in units of m

312. ## ap us history

how much more was the conflict between great Britain and her North american colonies economic origin rather than rooted in political and social controversies and differences.

Please help me what this quotes mean then I have to write WHAT I think about it. i already get eight of them but idont get rest of them. 1) Or I will become engulfed with all I did or I did not do, with what should have been and what cannot be helped 2)

314. ## HISTORY

Which of the following phrases does NOT appear in the Declaration of Independence? ( A life, liberty, and the pursuit of happiness B all men are created equal C these Colonies are, and of right ought D to be, free and independent states we the people of

6.04g

316. ## ECON

A bank vice-president declared that the probability that the bank’s funds were being embezzled was 0.70 and that the probability that an embezzlement would be discovered by the bank examiner was 0.90. Given that the bank examiner does not find the

317. ## ECON 2

False signals. A procedure has been designed that will detect 99% of the defective assemblies in a manufacturing process. However, the probability that the procedure will declare a good assembly defective is 0.05. If 2% of all assemblies are defective,

318. ## ECON 3

A manufacturer of television sets trims sets in either black or grey and uses either a walnut or a maple stain. A consumer survey showed that 20% of consumers wanted a black trim with a walnut stain and that half of all consumers wanted a black trim or a

319. ## physics

A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

320. ## physics

A barge is hauled along a straight-line section of canal by two horses harnessed to tow ropes and walking along the tow paths on either side of the canal. Each horse pulls with a force of 540 N at an angle of 12° with the centerline of the canal. What is

321. ## math

i mande 440 at a yard sell in 10 20 i need to have 5 more 10 than 20

322. ## SUBJECT

Which of the following statements about literary movements is NOT true? A A literary movement is a period that shares a particular set of ideas, concerns, or characteristics. B Ideas, concerns, or characteristics may be shared by literary movements. C

323. ## HISTORY

William Bradford wrote Of Plymouth Plantation and A "To My Dear and Loving Wife." B The Day of Doom. C The Voyage of the Mayflower. D The Mayflower Compact. I THINK ITS C OR D BUT IM PRETTY CONFUSED. PLEASE HELP , IF I WERE TO PICK ID PICK C

324. ## Math

Solve each system of equations using substitution. 1.) x+3y=-4 y+x=0 2.) y=2x+3 5x-y=-3 3.) 2y=-4x 4x+2=-11

325. ## physics

A rowboat crosses a river with a velocity of 3.55 mi/h at an angle 62.5o north of west relative to the water. The river is 0.850 mi wide and carries an eastward current of 0.57 mi/h. How far upstream is the boat when it reaches the opposite shore?

326. ## math 5th

number puzzles You say this number when you start at 0 and count by 15. You say this number when you start at 0 and count by 25. This number is less than 200. This number is even.

327. ## AlgebraII

How do you get the answer for this equation a+2b+(14a-5b)-[6a+6b-(a+4)]

328. ## physics

A diver jumps off a diving board with a speed of 25m/s he returns to the water after 3s. At the top of his dive describe his velocity and his acceleration?

329. ## physics

An apple falls from a tree and hits the ground 9.93 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

330. ## physics

A flowerpot falls from a window sill 28.4 m above the sidewalk. What is the velocity of the flowerpot when it strikes the ground? The acceleration of gravity is 9.81 m/s2 . Answer in units of m/s

331. ## sugarhill

i need help with this problem 6/13 devided by 4/39

332. ## physics

A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

333. ## physics

A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

334. ## physics 1

A car is accelerating, from rest, at a rate of 6.74 m/s2. After 4.35 seconds, how far has the car gone?

335. ## accounting

what affect can the incorrect intentional or unintentional posting, journalizing and reporting of financial data have on a company, an accountant or a company's stakeholders?

336. ## history

Which of the following authors wrote in the same genre? Anne Bradstreet William Bradford Olaudah Equiano Thomas Jefferson

337. ## Chemistry

The bromine content of the ocean is about 65 grams of bromine per million grams of sea water. How many cubic meters of ocean must be processed to recover 1.0 pounds of bromine if the density of sea water is 1.0 x 103 kg/m3?

338. ## history

Thomas Jefferson and Thomas Paine shared a similar purpose for writing. What was their purpose? (1 point) to express and reflect to persuade to inform to invite

339. ## physics 1

A car is accelerating, from rest, at a rate of 6.74 m/s2. After 4.35 seconds, how far has the car gone?

340. ## history

The statement below represents which genre from the early American and Colonial period? I want to explain origins of the natural world and its processes. (1 point) the poetry of Anne Bradstreet the oral tradition of Native Americans the journals of William

341. ## Math

geometry- On the coordinate plane, draw a rectangle ABCD with vertices at A (1,4), B(5,4), C(5,1) and D (1,1). Then graph and describe the new rectangle formed when you subtact 3 from each coordinate of the vertices in rectangle ABCD.

342. ## math

can you help ; i need to write and solve for each situation. check the solution. school: between 7:30am and 8:00am the number of students in a school increased by 73. there were 152 students in the school at 8:00 am. How many students were in school at

343. ## calculus

find the constants a and b so that the function is continuous on the entire real line. F(x)= 3, x≤-1 ax+b, -1

344. ## calculus

find the constants a and b so that the function is continuous on the entire real line. F(x)= 3, x≤-1 ax+b, -1

345. ## early childhood

how can Brain Development Research Influence Early Childhood Curriculum

346. ## Calculus - Series2

Find the sum of each of the convergent series: b) 5 - 1/3 + 20/9 - 40/27 + 80/81 ..... so first we need to find the general term, and I'm not sure of my answer, but I got: ((-1)^2 * 2!)/3^n and a0 = 5 From here on I'm lost.

347. ## Physics

Thinking Physic-ly: On some toll roads, the ticket is stamped with the time you enter the toll road and the time you exit. How can the toll taker determine if you were speeding?

348. ## Intermediate algebra

if a positive number is increased by 70% and then the result is decreased by 50% what is the overall percentage change

349. ## government

civil rights act was aimed chiefly at

350. ## imp4

Pow 3 "a sticky gum" revisited Gumballs are 1 penny each. The kids each want a different color. what is the maximum spent with each generalization. create formulas for the following. Generalize the number of children. Generalize the number of gum ball each

351. ## Physics

A bullet of 10g enters a target at 100 ms-1 and leaves it 0.01 s later. Calculate: i. The rate of change of momentum of the bullet ii. The resistance offered by the target iii. The loss of kinetic energy of the bullet iv. The deceleration of the bullet v.

352. ## PHYSICS

Two point charges are placed on the x axis as follows: Charge q1= 4.20 is located at x= 0.185 , and charge q2= 4.80 is at x= -0.280 . What are the magnitude and direction of the net force exerted by these two charges on a negative point charge A =

Employer receive a base pay of $900.00 plus a sales commission of 6% of sale sum of base pay and commission deduction 18% of gross pay gross pay minus deduction My answer : base pay$900.00 + $54.00 =$954.00 -$171.72= net pay$782.28