# Questions Asked onMarch 23, 2016

1. ## algebra

How many pairs of integers $(b,c)$ satisfy the equation $\frac{b + 7}{b + 4} = \frac{c}{9}?$

2. ## Bus. Math

What is the net price equivalent Rate of 9-15/18? a) .63427 b) .36427 c) .63573 d) .36573 Answer: B?

3. ## English

I'm writing an essay in English on whether learning always has a positive effect on a persona life. I said that it does. I need another main idea. My first one is learning can help us learn from our mistakes. I also need an example from literature or

4. ## Health

Which activity is an excellent strategy to help maintain strong teeth and healthy gums? 1.) Treating gum disease 2.) Treating tooth decay 3.) Wearing a mouth guard 4.) Eating a well rounded, proper diet I think it's No. 3

5. ## Geometry

We know from historical records that the Great Pyramid of Giza was originally about 147 m tall. Assuming it was built with its faces at 52 degree inclines, what was the original length of one side of its base? Round your answer to the nearest meter. 91 m

6. ## math !

A quilt design uses parallelogram-shaped pieces that have a base measure of 6 inches and a height of 8 inches. If 15 pieces are used in the quilt, what is the total area of the parallelogram-shaped pieces in the quilt? A)150 in B)360 in C)720 in** D)1,440

7. ## Algebra II

The graph below represents c, the amount a phone company charges, based on m, the number of minutes the customer uses each month. If there are a maximum of 44,640 minutes in a month, which equation best represents the phone company’s charges?

8. ## Chemistry

If a mothball (C10H8) has a mass of 1.32 grams, how many naphthalene molecules does it contain? If I'm right just multiply 1.32g by 6.022*10^23 and the answer is 7.949*10^23 molecules. Is this right?

9. ## History

which of the following was a significant part of the civil rights movement? a.) the civil rights movement got national attention. b.) laws were passed as a result of the civil rights movement. c.) the president provided support of the civil rights

10. ## Math

How can you use theoretical probability to make predictions in real-world situations? Complete the statement. You can find the theoretical probability of an event and then use it to make a prediction by setting up a IS THIS CORRECT? My answer: A.

11. ## Chemistry

Consider the chemical equation. 2H2 + O2 -> 2H2O What is the percent yield of H2O if 87.0 g of H2O is produced by combining 95.0 g of O2 and 11.0 g of H2? a 56.5% b 59.0% c 88.5% d 99.7%

12. ## geometry

In triangle FGH, g = 8ft, h=13ft, and m=F= 72degrees. Find m

13. ## Math

If 100 students are surveyed, about how many students own 2 or more pets? Explain please 0 pets __________ 1/20 1 pet __________ 1/2 2 0r more _______ 9/20 Thank you very much

14. ## Science

This is not questions its the answers hope it helps took a long time to type. A basketball momentarily changes shape as it bounces off the floor. This is due too balanced forces acting on the ball TRUE* FALSE* A ball slowing down as it rolls across a

15. ## Health and physical education

The peripheral nervous system (Select all that apply)A. Is made up of the brain and spinal B. cord Links the body to the brain C. Is made up of sensory and motor neurons D. Is responsible for thought and reasoning.......A and C?

16. ## Algebra II

An air show is scheduled for an airport located on a coordinate system measured in miles. The air traffic controllers have closed the airspace, modeled by a quadratic equation, to non-air show traffic. The boundary of the closed airspace starts at the

17. ## math !

A bean plant was 1.5 meters high one week ago. In 7 days it grew 15 centimeters. Find the current height of the bean plant. A)1.35 m B)13.6 cm C)1.65 m D)1.85 cm (I'm having trouble with this !! NO I don't want the answer I just need a way to get the

18. ## AP CHEM

What is the pKa for the acid HA if a solution of 0.65 M HA and 0.85 M NaA has a pH of 4.75? ~~~I know you find the ph by doing -log of pka; how do you do the reverse when you have molarity? I am completely lost. :-(

19. ## English

Choose the best paraphrase of these lines from the "The Sidewalk Racer" A)I wish I could move as fast as a car or a plane, but I cant because I am only a human. B)I feel as if I am botha single engine plane and a car.(I pick this) C)With my one-engine

20. ## Science

Hi!One Question! Which of the following explains why your body may contain a carbon atom that was present in George Washington's body from 1776?

21. ## Engineering Accounting

A car may be purchased with a $3500 down payment now and 72 monthly payments of$480. If interest rate is 12% compounded monthly, what is the price of the car?

22. ## MATH

Ginger has 12 plastic bead containers. The containers measure 1 inch on each side. How many rectangular prisms, each with a different-sized base, could Ginger make by stacking all of the bead containers?

23. ## Social Studies

Stevie is moving up to the attic and wants to paint a wall white. The wall is a triangle with a base of 17 feet and a height of 12 feet. What is the area of the wall? A)204 ft** B)58 ft C)102 ft D)51 ft **= answer !!

24. ## chemistry

3NO2(g) + H2O(l) → 2HNO3(l) + NO(g) How many moles of nitric acid are produced starting from 5.00 moles of NO2(g) and 2.00 moles of water? Please help,

25. ## Math

A typical stone on the lowest level of the great pyramid in Egypt was a rectangular prism 5 feet long by 5 feet high by 6 feet deep and Weighed 15 tons what was the volume of the average stone how much does one cubic foot of the stone weigh

26. ## chemistry

why were you instructed to add distilled water in step 12, and possibly more distilled water in step 15? what purpose does the water serve?

27. ## Math- probabilities

A gumball machine contains 6 red gumballs and 6 white gumballs. Two gumballs are purchased, one after the other, without replacement. Find the probability that at least one gumball is white. Express your answer as a decimal, rounded to the nearest

28. ## History

What are the risks and benefits of propaganda campaigns?

29. ## AP CHEM

You need to use KH2PO4 and K2HPO4 to prepare a buffer with a pH of 7.45. Which of the following ratios of [base]/[acid] is required? For phosphoric acid, (H3PO4), Ka2 = 6.2 × 10–8. Do I use the Hasselbach equation?

30. ## Math

You owe $1,350.00 on a credit card with a 14.25% APR. You pay$300.00 at the beginning of the month. How much interest do you save by paying at the beginning of the month versus at the end of the month?

31. ## Geometry

Describe in words the translation of X represented by the translation rule T < -7, -8 > (X). A. 7 units to the right and 8 units up B. 8 units to the left and 7 units up C. 7 units to the right and 8 units down D. 7 units to the left and 8 units down*****

32. ## English

There are 7 classes for first year students. Each class is composed of about 30 students. Emily is a student of Class 1-2. One of his classmates who went to the same elementary school asks: Which class are you in? What is the answer to the question? 1. I'm

33. ## Algebra II

The quantity q varies inversely with the square of m and directly with the product of r and x. When q is 2.5, m is 4 and the product of r and x is 8. What is the constant of variation?

Carol has a collection of 100 stamps the graph below shows the percentage of stamps she has from each country how many more of Carols stamps are from italy than from france? France: 24%, England:22%, Norway:29%, Italy:25%. A)22 stamps B)25 stamps C)47

35. ## physics

A uniform thin wire is bent into a semicircle of radius r. Determine the coordinates of its center of mass with respect to an origin of coordinates at the center of the "full" circle. Because wire is uniform x (sub cm) = 0 mass=dm length=dl coordinates

36. ## physics

A 20.0 gram bullet exits the rifle at a speed of 985 m/s. The gun barrel is 0.80 m long. What was the force(N) during the rocket’s launch? (Hint: note the units of the bullet!)

37. ## Algebra

The hypotenuse of a right triangle is 13 inches long. The shorter leg is 7 inches shorter than the longer leg. Find the side lengths of the triangle.

38. ## Math

Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x3 - 16x on the interval [-1, 1]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem.

39. ## Chemistry

Gold has a density of 19.3 g/cm3. The thickness of a piece of gold leaf weighing 1.93 mg and covering an area of 14.5 cm2 is? I solved for volume=10000cm3 then I solved for height and got 690cm is the thickness of gold leaf. Can anyone confirm or deny?

40. ## Physics

a uniform thin wire is bent into a semicircle of radius r, determine the coordinates of its center of mass with respect to an origin of coordinates at the center of the full circle

41. ## Math

1.During the month of June, Ava kept track of the number of days she saw birds in her garden. She saw birds on 18 days of the month. What is the experimental probability that she will see birds in her garden on July 1? my answer: 3/5 2.A rectangle has a

42. ## Physics

A 66-kg water skier is being pulled by a nylon (Young's modulus 3.7 x 109 N/m2) tow rope that is attached to a boat. The unstretched length of the rope is 20 m and its cross-section area is 2.8 x 10-5 m2. As the skier moves, a resistive force (due to the

43. ## S.S

Which of the following was an effect of World War II? A. The American economy worsened after World War II. B. African American military personnel were accepted into white society as equals. C. The American economy improved after World War II. D. The Axis

44. ## Math

Shannon drove for 540 minutes, if she traveled 65 miles per hour, how many miles did she travel? My answer: 581

asked by Is my work correct?
45. ## trigonometry

x×sin^3A=y , cos^3A = sinA × cosA , x×sinA= y×cosA , then prove that x^2+ y^2= 1 I have no idea

46. ## maths

a+b/a-b + a²-4b²/a²-b² - a-3b/a+b How to solve this question and how to take the LCM of followings?.

47. ## Nature Science

Which of the following can be accurately said about climax communities? A. Climax communities are always stable. (B. Restoration of the original climax community is always achieved at the same rate.) C. Climax communities are always uniform. D. Restoration

48. ## Math

The experimental probability that Alexander wins a tennis match is 0.21. If he plays 40 tennis matches in the next week, about how many matches can Alexander expect to lose? Is it 32 matches?

49. ## science

a person roller skates down a street heading east which of the following would be true abot friction in this scenario? ----------------------------------- 1.A. friction does not affect the skates in this scenario 2.B. friction pulls the skates wheels

50. ## Calculus

a rancher has 1200 fet of fencing to enclose two adjacent cattle pens. What dimensions should be used so that the enclosed area is maximized?

51. ## Math

Sadie ate 2/8 of a small pizza.Josef ate 2/8 of a large pizza.Did sadie and Josef eatbthe same amount of pizza? Explain.

52. ## Science

Which of the following can be accurately said about climax communities? A. Climax communities are always stable. (B. Restoration of the original climax community is always achieved at the same rate.) C. Climax communities are always uniform. D. Restoration

53. ## AP Calculus AB

An object has a constant acceleration of 40 ft/sec2, an initial velocity of -20 ft/sec, and an initial position of 10 ft

54. ## math !

Find the surface area of the rectangular prism with l= 12.5 m, w= 16.5 m, and h= 5.5 m. My Answer )1134.375 (I'm having doubys about my answer , is it correct ?)

55. ## Chemistry

What is the entropy change of liquid glycol (in cal K-1 mol-1 ) when it freezes at -25 ˚C?the heat of fusion of glycol is 2688 cal mol-1 , and the specific heats of liquid and solid glycol are 33.8 and 20.1 cal K-1 mol-1 , respectively.

56. ## physics

A uniform thin wire is bent into a semicircle of radius r. Determine the coordinates of its center of mass with respect to an origin of coordinates at the center of the "full" circle. Because wire is uniform x (sub cm) = 0 mass=dm length=dl coordinates

57. ## maths

the diagram part of holly's design for a game. In her game a player pays x pence to spin a star. when the star stops spinning the payer wins the amount shown on the arrow. holly wants to gain an average of 5p each time the game is played show how this can

58. ## math

An executive traveling at 60 km hr would arrive 10 minutes early for an appointment, whereas at a speed of 45 km hr the executive would arrive 5 minutes early.how much time is there until the appointment?

59. ## Chemistry

Using the Table of Thermodynamic Data calculate Kp at 500 K for the reaction 2 HI(g)-->I2(g) + H2(g) , if Kp at 300 K is 2.16x10-3 , assuming that delta H˚ is constant.

60. ## math

A rectangle made of square tiles measures 10 tiles long and 8 tiles wide. What is the width of a similar rectangle whose length is 15 tiles? is 12 tiles correct

61. ## statistics

Among 15 metal parts produced in a machine shop, 4 are defective. If a random sample of five of these metal parts is selected, find a) The probability that this sample will contain at least three defectives. b) The probability that this sample will contain

62. ## Math

If each person at a picnic drinks 710 milliliters of soda , how many two-liter bottles are needed for ten people Plz explain clearly answer now!!!

63. ## trigonometry

2sin^2 A + 5cosA = 4 , Prove that cos A = 1/2

64. ## PHYSICS

A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in

65. ## History

In 1940, Japan was forced to decide which it needed more. A:Indochina's raw materials or U.S. oil and scrap iron B:Russian support or Indochina's protection C:U.S. raw materials or Saudi oil D:Industrialization or more factories. I choose A is this

66. ## laney college

The following questions are based on the “Mt. Dome, California,” quadrangle (Figure 33-2 found on page 228 of the Laboratory Manual; enlarged to scale 1:48,000; contour interval 40 feet) and the stereogram of the same

100+1674

68. ## statistics

Among 15 metal parts produced in a machine shop, 4 are defective. If a random sample of five of these metal parts is selected, find a) The probability that this sample will contain at least three defectives. b) The probability that this sample will contain

69. ## Combination

In a question paper there are two parts A and B . Part A contains 6 questions and part B contains 7 questions . in how many ways a student can select 4 questions in part A of which 2 questions are compulsory and 5 questions in part B of which 3 questions

70. ## Life orientation

Six pratical action that can take to adress human right violations of xenophobia in community.

71. ## Physics

An equilateral triangle initially has side length equal to 17 cm. Each vertex begins moving in a straight line towards the midpoint of the opposite side at a constant rate of 2.3 cm/s, continuously forming progressively smaller equilateral triangles until

72. ## Chemistry

The Kp for the production of phosgene is 18.0. If one mole each of CO and Cl2 are mixed at the total pressure of 1 atm, what will be the partial pressure (in atm) of COCl2 after equilibrium is reached, CO(g) + Cl2(g)-->COCl2(g)

73. ## Chemistry

Use the Table of Thermodynamic Data to decide which of the following reactions have K>1 at 298 K: (i) HCl(g) + NH3(g)-->NH4Cl(s) (ii) 2 Al2O3(s) + 3 Si(s)-->3 SiO2(s) + 4 Al(s) (iii) Fe(s) + H2S(g)-->FeS(s) + H2(g). Which of the products of these reactions

74. ## physics

A horizontal, straight wire carrying 12 A current from east to west is in the earth's magnetic field B. At this place, B is parallel to the surface of the earth, points north and its magnitude is 0.04mT. Determine the Magnetic Force on 1 m length of wire.

75. ## mit

Two circular pucks, each of mass M and radius R, slide toward each other and are about to collide on frictionless ice. The pucks have glue on their edges and when they collide the pucks will stick together. Before the collision, the rightward-travelling

118. ## math

hourly truck rental terms, hourly rental rate is $25,plus$0.30 per mile john rented truck at 9:00am and returned it at 1:30 he drove a total of 100 miles? how much was he charge for time and milage?

119. ## Math

Four angles are put together, forming a straight angle. Two of the angles are the same size. The other two angles are also the same size but different from the other two. If one angle of the four angles is 40 degrees, what are the measures of the other

120. ## English

At school, he learns 10 subjects such as math, science, social studies, computers, ethics, etc. He is in math class now. He has a cell phone. He is sitting at the back. One of his friends calls him and asked "Which class are you in?" What is the answer to

121. ## English

Thank you for yoiur help. 1. Emily in in math class. 2. Emily is in a math class. 3. Emily is in a math classroom. ================ #1 mean that Emily is learning math from a math teacher. Am I right? #2 and #3 are the same, aren't they? #1 and #2 are not

122. ## math

I took a test today that had 50 questions I needed 70 percent to pass I missed 10 questions what is my percent?

123. ## mit

1 point possible) A uniform disc of radius R and mass m1 is rotating with an angular speed ωi about an axis passing through its center and perpendicular to the disc's plane. A small box of mass m2, initially at the center of the disc, moves away from the

124. ## PHYSICS

A SUPERSONIC FIGHTER JET FLYING HORIZONTALLW AT HEIGHT OF 4KM ABOVE THE GROUND AND AT A SPEED OF 400M/S FIRES A ROCKET VERTICALLY DOWNWARD. THE ROCKET IS RELEASED WITH AN INITIAL SPEED OF 80M/S CALCULATE THE TIME OF FLIGHT OF THE ROCKET AND THE HORIZONTAL

125. ## Chemistry

You dissolve 6g of Co(ClO4)2 (molar mass: 257.83) in 1 liter of water. Assuming the entire sample dissolves, how many individual perchlorate ions are present in this solution? I'm so lost where to start.

126. ## INFORMATION LITERACY

What do you like and dislike about Bing(common search engine).

127. ## Geometric progression

sum of 4 terms of g p is 30 & sum of first and last term is 18 . Find gp a(r^4-1)/(r-1) = 30 a + ar^3 = 18 a(1+r^3) = 18 it's easy to see that if a=2, r=2 Does that work on S4? 2*15/1 = 30. Yes So, the GP is 2,4,8,16,... But sir I want not logic proof ,

128. ## math

1) A rectangular tank, 15 cm long and 20 cm wide, is filled with water to a depth of 12 cm. When a rock is put in, the water level rose to 15 cm. What is the volume of the rock?

129. ## L.A.

In “The Road not Taken,” what two things is the author comparing? i think they're comparing the seasons in the beginning and end and also the emotions the person in the poem was feeling. I'm not quite sure, i was in the hospital when we learned this..

130. ## math

How can you find the volume of a rectanglar prism using a model?!!!

131. ## FL

• Loops • File processing • Previously mastered course topics Create an application allowing employees to take orders and then tally up the total costs from its customers. The coffee shop offers the following items on its menu: • Coffee • Tea •

132. ## Biology

When we spin around in one place and stop, we feel as though we are still moving. This feeling is caused by continued Select one: A. transmission of nerve impulses from cochlea to auditory nerve B. movement of fluid against cochlea C. vibrations of

When we spin around in one place and stop, we feel as though we are still moving. This feeling is caused by continued Select one: A. transmission of nerve impulses from cochlea to auditory nerve B. movement of fluid against cochlea C. vibrations of

134. ## Math

Write 14 2/9% as a ratio. Here what I have done so far. I change 2.9 into decimal = 0.22 therefore, 14.22. I change 14.22 into decimal = 0.1422. Do I divide 0.1422 by 10,000 or 1000 to make into a simplified fraction?

135. ## PHYSICS

With what maximum speed can an unsecured passenger stay in their seat on a Ferris wheel that has a diameter of 12 m. so, this happens when Fn is zero or mg = mv^2/r. v = sqrt(gr) so is it v=sqrt9.8 what would happen with the 12m

136. ## Physics

You are driving in your car, which has a mass of 980 kg, when you come across the bend shown in the picture below. This bend has a radius of curvature of 25.0 m and a maximum suggested speed of 35 km.h-1K

137. ## Math

Marianna's cell phone company charged her an upfront fee and a monthly fee. After three months of service, she had paid a total of $154.95. After a year of service, she had paid a total of$559.95. Her monthly fee was $______. The upfront fee was$______.

138. ## MATHS GP

IN A GP if the sum of 2nd and 4th terms is 30 . The difference of 6th and 2nd term is 90 . Find the 8 the term I got r = √13/2 Is it correct? Pls answer

139. ## Math

Determine the value of c for the quadratic expression. X^2-14x+c

140. ## Chemistry (30s)

I need help on this question. I can't seem to understand it. Find the molecular formula of a compound with a gram molecular mass of 30 g and an empirical formula of CH3. Please show your work! and briefly explain how you got it!

141. ## math

A digital TV box can store 120 hours of programmes. The average length of different programmes is shown here: .Films=1.5 hours each .Sports=2 and one quarter hours each .Nature=75 minutes each Amy has re orded 12 films,9 sports and 15 nature programmes.

142. ## math

Gustavo is making sushi rolls. He needs 1/3 cup of rice to make each roll. If he has 4 cups of rice, how many sushi rolls can he make?

143. ## Chemistry

If 30.47 kilograms of hydrogen are produced, then how many kilograms of zinc have been consumed?

144. ## math

Marianna's cell phone company charged her an upfront fee and a monthly fee. After three months of service, she had paid a total of $154.95. After a year of service, she had paid a total of$559.95. Her monthly fee was $______. The upfront fee was$______.

145. ## math

Ito is training to run a 10 kilometer race in five months. His current pace is 6.25 minutes per kilometer. He wants to constantly increase his speed each month until he is running a 5.5 minute kilometer. Ito needs to increase his pace by ____ each month.

146. ## Chemistry

How many grams of ammonia (NH3) will be produced when 0.281 grams of nitrogen are combined with hydrogen?

147. ## Social Studies

A system in which a series of workers and machines work to add individual parts to a product is known as a(n)____and it_____. Link please to help me?

148. ## English

Posted by rfvv on Tuesday, March 22, 2016 at 11:55pm. Which class are you in? 1. I'm in class 1-2. (I am a member of Calss 1-2. In the classroom, there are 30 students.) 2. I'm in math class. (I'm listening to the math teacher. It's time for studying

149. ## mathematics-discriminant

. Find d delta(discriminant) of 2x^3-7x^2-17x+10 show workings #thanks

150. ## calculus

an air balloon is 80ft away from you with the angle of elevation of the rising balloon changing at a rate of 4 degrees per second how fast is the balloon rising when it is 6 feet off the ground.

151. ## Math

Ito is training to run a 10 kilometer race in five months. His current pace is 6.25 minutes per kilometer. He wants to constantly increase his speed each month until he is running a 5.5 minute kilometer. Ito needs to increase his pace by ____ each month.

152. ## economy

Can you please help me solve the first problem of Working with the Data in Chapter 4 (page 136 #1) of Macroeconomics Fifth Edition by Stephen D. Williamson? I need all the steps of how to solve the problem 1. The employment-population ratio, from the

153. ## algebra 1 or pre algebra

Which of the following numbers is not in the domain of the function (f)=x(x^2-16)/x^2-5x-6 4 a B) 4 C) 0 D) 6 E) 1

154. ## division and remainder...error ws from my teacher not me

1+2^2+3^3+4^4+.....+10^10 when is is divided by 5 what is the remainder!! show working,please have been trying that i could not,get it

155. ## english

my topic is about racial stereotyping so one of the questions is why chose the topic about stereotyping? so what shall i say.....

156. ## math

Algebraic expression f - 7.3

157. ## Statistics

How do the 3rd grade boys’ weight in Principal Ben’s school compare to the national average (mean weight = 90, sd =15)? Provide the IV, DV, and best method of analysis

158. ## chemistry

How many liters of hydrogen will be produced when 3766 g of aluminum are combined with hydrobromic acid to make aluminum bromide?

159. ## math

Hailey has a dozen Easter eggs. 2/3 of the eggs are blue. How many of the Easter eggs are blue?

160. ## mit

A square shaped block of mass travels to the right with velocity on a frctionless table surface. The block has side-length . The block hits a very small, immovable obstacle on the edge of the table and starts to tip. The block has moment of inertia about

174. ## math

My cousin needs help on hw and im too lazy to take out my papers.so what is 5/6 times 12???

175. ## chemistry

what kind of reactions require oxidizing agent(reduced or oxidized) for example SO3->SO4 does it require oxidizing or reducing agent why?

176. ## Linear Algebra

Diagonalize the matrix A = [1,1;-2,4] using a similarity transformation. Give the transformation matrices such that (C^−1)AC = D, where D is a diagonal matrix. (D, C) = ?

177. ## Math

Twice the sum of five and a number is eight less than four times the number

178. ## math

Hailey has a dozen Easter eggs 2/3 of the eggs are blue how many of the Easter eggs are blue? Please answer quickly!

179. ## Science

'Cl(OCl)Cl' What is the name of it?

180. ## Math

I need 27 2x4 50" long how many feet do I need

181. ## sunnyvale

4 boys went to the park. 3 of them bought ride tickets for x dollars, plus a game pass for 10dollars.the other one just bought a ride ticket. write an expression

182. ## Math

If adriana drew 20 pitchers and 3/4 of them are in art class how many pitchers did adriana draw in art class

183. ## Math

Write 1/6 as a complex percent. The answer is 16 2/3%. I have NO idea what to do. Thank you