# Questions Asked onNovember 15, 2015

1. ## Math

1. Write the ratio in the simplest form. 50:10 (a) 25:5 (b) 10:2 (C) 5:1* (D) 1:5 2. Solve the following proportion. p/6=7/8 (a) p=5.25 (b) p=8 (c) p=10.5* (d) p=42 3. Chris's uncle has a model car. The model is 6 inches long and 3 inches wide. The actual

2. ## Science: Chemistry

Pentane (C5H12) burns in oxygen to produce carbon dioxide and water. C5H12(g)+8O2(g)→5CO2(g)+6H2O(g) Calculate the mass of CO2 that can be produced if the reaction of 38.5 g of pentane and sufficient oxygen has a 58.0 % yield.

3. ## math

An aeroplane flies due north from Ikeja Airport for 500km. It then flies on a bearing of 060 degrees for a further distance of 300km before overflying a road junction.Calculate a. The distance of the aeroplne from Ikeja Airport when it was directly above

4. ## Algebra

I NEED HELP A\$AP, PLEASE! I don't understand how to do this :( I have to draw a short roller coaster on graph paper Directions: 1. Draw the side view of your roller coaster on graph paper. For the sake of simplicity, assume that your roller coaster track

5. ## math

Given that p-2q over p+2=3q ,express q in terms of p. The answer is C. p over 3p+8 I cant get the steps..help me

6. ## math

The track team plans to sprint 20 miles this school year. The runners will sprint 1/4 mile each day.How many days will it take them to sprint 20 miles?

7. ## AP physics 1

an astronaut on a space walk discovers that this jet pack has no longer works, leaving him stranded 50m from the space-craft. If the jet pack is removable, explain how the astronaut can still use it to return to the ship?

8. ## Physics

if your plane is flying 25° north of east at the speed of 820 kg per hour how fast is it moving to the north?

9. ## Chemistry

10000 tonnes of iron reacted in a blast furnace Fe2O3 calculate the typical mass of iron produced each day

10. ## PLEASE I NEED HELP MS SUE

in the heart blood flows from the right atrium to the right ventricle where it is pumped to the ______ openstudy

11. ## Geometry

In the figure, square WXYZ has a diagonal of 12 units. Point A is a midpoint of segment WX, segment AB is perpendicular to segment AC and AB = AC. What is the length of segment BC?

12. ## Chemistry

A 0.120 g sample of a diprotic acid of unknown molar mass is dissolved in water and titrated with 0.1218 M NaOH. The equivalence point is reached after adding 12.4 mL of base. What is the molar mass of the unknown acid?

13. ## Algebra 1

The width of a rectangular prism is 30cm. This is 12 more than one-fourth of the length. Find the volume of the prism, given the height is 20cm.

14. ## Physics

A train can deccerate at 0.4 m/s. It's traveling at 160km/hr. How far in advance should it apply brakes to come to a full stop.

POEM: The Grammar Of Silk by Cathy Son Lines 19-26: "Seamstresses waited at counters like librarians to be consulted. Pens and scissors dangled like awkward pendants across flat chests, a scarf of measuring tape flung across a shoulder, time as a

16. ## Physics

A roller coaster reaches the top of the steepest hill with a speed of 7.0 km/h . It then descends the hill, which is at an average angle of 44 ∘ and is 30.0 m long. Estimate its speed when it reaches the bottom. Assume μk=0.18.

17. ## Chemistry

Calculate the standard enthalpy change for the reaction 2A+B⇌2C+2D Use the following data: Substance ΔH∘f (kJ/mol) A -251 B -403 C 213 D -511 My thoughts: [(2)(-511)+(213)(2)]-[(2)(-251)+(-403)]=309kJ (but apparently that is not the correct answer)

18. ## physics

An ECG monitor must have an RC time constant less than 100 μs to be able to measure variations in voltage over small time intervals. If the resistance of the circuit (due mostly to that of the patient’s chest) is 1000 Ω, what is the maximum capacitance

19. ## PHYSICS

A BALL IS PROJECTED VERTICALLY UPWARD FROM THE TOP OF A TOWER 60MITRE HIGH WITH A VELOCITY OF 30MITRE PER SECONDS.WHAT IS THE MAXIMUM HEIGHT ABOVE THE GROUND LEVEL?HOW LONG DOES IT TAKE TO REACH THE GROUND?

20. ## statistics

The time needed to complete a final examination in a particular college course is normally distributed with a mean of 79 minutes and a standard deviation of 8 minutes. Answer the following questions. Assume that the class has 60 students and that the

21. ## English

6.)Which of the following sentences contains a verb that is correctly formed in the perfect tense? a.)Susan is spoken at our club before. b.)Desmond has love swimming in the ocean. c.)Desmond has love swimming in the ocean. d.)Jake have painted his room

22. ## Algebra

A family earns \$1800 a month. The family's expenses are at least \$1250. Write and solve an inequality to find the possible amounts the family can save each month.

23. ## pre algebra

Wren bought a baseball card last year for \$2.25. This year the price dropped to \$.45. What was the percent of decrease in the price of the card A. 120% B. 500% C. 80% D. 400% A?

24. ## Math

The annual real estate tax on a duplex house is \$20,913 and the owner sell the house after 9 months of the tax year. How much annual tax will the seller pay? How much tax will the buyer pay?

25. ## physics

An airplane is travelling at a speed of 600 mph on a heading of 345 degrees. There is a wind moving at a speed of 70 mph on a heading of 20 degrees. The pilot would like to maintain his planned course. Find the speed and heading he should set in order to

26. ## Science: Chemistry

How many kilojoules are released when 115 g of Si reacts with chlorine? Si(s)+2Cl2(g)→SiCl4(g)ΔH=−657kJ

27. ## Social Studies

Why did the English establish colonies in the Americas? The English established colonies in the Americas because the King of England wanted to bring the people that didn't celebrate the same religion their own community. He allowed them to spread their own

28. ## Physics

A car starts rolling down a 1-in-6 hill (1-in-6 means that for each 6 m traveled along the road, the elevation change is 1 m). How fast is it going when it reaches the bottom after traveling 70 m ? Assume an effective coefficient of friction equal to 0.10

29. ## Chemistry

A 0.120 g sample of a diprotic acid of unknown molar mass is dissolved in water and titrated with 0.1218 M NaOH. The equivalence point is reached after adding 12.4 mL of base. What is the molar mass of the unknown acid?

30. ## Chem

A gas has density of 1.977 g/dm3 at STP (a) what is its molecular mass? (b) what is its density at 77¢XC and 0.95 atm pressure? (c)If the gas is an oxide and has the formula XO2, what is the atomic mass of X

31. ## Physics 1

A car manufacturer claims that you can drive its new vehicle across a hill with a 47 degree slope before the vehicle starts to tip. If the vehicle is 2.0 meter wide, how high is its center of gravity?

32. ## precal : conics

a parkway 80 ft. wide is spanned by a parabolic arc 100 ft. long along the horizontal, if the parkway is in the center, how high must the vertex of the arch be in order to give a minimum clearance of 20 over the parkway?

33. ## Chemistry 102

The average human body contains 6.00 L of blood with a Fe2+ concentration of 2.00×10−5 M . If a person ingests 6.00 mL of 16.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion?

34. ## physics

When a wood shelf of mass 7.2 kg is fastened inside a slot in a vertical support as shown in (Figure 1) , the support exerts a torque on the shelf. Assume that the slot exerts two vertical forces on the shelf, at points A and B. Detrmine the force exerted

35. ## Chemistry

Which molecule contains a polar covalent bond? a)C2H4 b)ZnS c)LiI d)NBr3 e)AgI

36. ## Physics

Determine the velocity of the Hubble deep space telescope while it is in orbit at a height of 598 km (5.98 x 105 m) above the earth’s surface. The earth’s radius is approximately 6.4 x 106 m. The mass of the earth is 6.0 x 1024 kg.

37. ## Physics

Compare the maximum speeds at which a car can safely navigate a flat, unbanked turn of radius 50.0 m in dry conditions versus snowy conditions. The coefficient of static friction in dry weather is 0.90, and in snowy weather it is 0.10. So, find the maximum

38. ## Chemistry

1. A hypothetical pure element consists entirely of two isotopes. The natural percent abundance of the isotope with mass 25.5 u is 86.1%. The other isotope has mass 29.2 u. Calculate the atomic weight of the naturally occurring element. 2. Suppose that a

39. ## physics

When a wood shelf of mass 7.2 kg is fastened inside a slot in a vertical support as shown in (Figure 1) , the support exerts a torque on the shelf. Assume that the slot exerts two vertical forces on the shelf, at points A and B.

40. ## Social Studies

1.) the first successfully established English colony in North America was a.) Plymouth b.) New York c.) Jamestown d.) Santa Fe 2.) protestants who wanted to reform the anglican church were called a.) pilgrims b.) puritans c.) plymouthians d.) priests 3.)

41. ## Calculus 1

Consider the function below. f(x)= (x^2)/((x-4)^2) Find the interval where the function is concave up. (Enter your answer using interval notation.) Find the intervals where the function is concave down. (Enter your answers using interval notation.) For

42. ## Physics

A 1450 kg car goes over a vertical hill with a radius of 64.7 m. What is the maximum velocity that will keep the car on the road as it goes over the hill?

43. ## chemistry Dr BOB

In many residential water systems, the aqueous Fe3+ concentration is high enough to stain sinks and turn drinking water light brown. The iron content is analyzed by first reducing the Fe3+ to Fe2+ and then titrating with MnO4- in acidic solution. Fe2+(aq)

44. ## Physics

a crane holds a 500kg wrecking ball in place using a wire with tension T1 and is horizontal to the ground. The crane swings it with a cable under tension T2. if the wire holds the ball in place so the cable forms a 20 degree angle with the vertical,

45. ## Chemistry

Given: PbSO4 + 2e− Pb + SO42− E° = -0.356 V PbO2 + 4H+ + SO42− + 2e− PbSO4 + 2H2O E° = 1.685 V Determine the cell voltage of the lead storage battery when the concentration of sulfuric acid is 4.00 M. Where do I start, thank you

46. ## language arts

El Niño is a change in how warm the ocean is. It happens when warm water from the Pacific moves eastward. No one knows why this happens. It takes place every four or five years and lasts for about a year. No two are the same. It can change the weather in

47. ## Physics

A man moves due north 6km then he moves 4km due west and then moves 4km southwards finally he moves 4km eastwards.Find his: total distance and displacement

48. ## Chemistry

A 0.120 g sample of a diprotic acid of unknown molar mass is dissolved in water and titrated with 0.1218 M NaOH. The equivalence point is reached after adding 12.4 mL of base. What is the molar mass of the unknown substance?

49. ## physics

A car travels 15km northwards. 5km eastwards, 10km southwards, and 5km westwards to arrive at point P. Find its total displacement

50. ## chem

What is the electron configuration for the aluminum ion? Phosphide ion? Do NOT use shorthand notation! My answer but when I input it I get it wrong why? Al: 1s^2,2s^2,2p^6,3s^2,3p^1 P: 1s^2,2s^2,2p^6,3s^2,3p^3

51. ## Calculus 1

Use Newton's method to approximate the indicated root of the equation correct to six decimal places. The root of x^4 − 2x^3 + 5x^2 − 5 = 0 in the interval [1, 2]

52. ## chemistry

A standard sodium carbonate solution is prepared in a 250 cm^3 volumetric flask during a titration,20 cm^3 of a 0,1 mol.dm^-3 nitric acid solution neutralises 25 cm^3 of the above standard solution according to the following balanced equation 2HNO3(aq)

53. ## Physics

A thin spherical shell of silver has an inner radius of 8.74 x 10-2 m when the temperature is 29.4 °C. The shell is heated to 145 °C. Find the change in the interior volume of the shell.

54. ## Maths

Statistics The marks scored by a sample of 56 students are summarised by: N=56 Sum of x =3026 sum of(x-the mean)^2 =15378 A) calculate the mean and the standard deviation Mean I got - 54.04 (2.dp) Standard deviation I got - 16.72 (2.dp) Is this correct? B)

55. ## swagodimo

Calculate the number of moles of hcl(aq)added to sodium thiosulphate

56. ## Science/Environmental Studies

What are some dependent variables for Global Warming?

57. ## Physics

A hockey skater turns in a circular path with radius of 31.0 m while going 10.5 m/s. If he experiences a centripetal force of 565 N, what is the mass of the skater?

Tom and Kathy together have 30 chocolates.Both of them lost 6 chocolates each,and the product of the number of chocolates now they have is 80.Find out how many chocolates do they have at the beginning.

59. ## Chemistry Dr. BOB

In many residential water systems, the aqueous Fe3+ concentration is high enough to stain sinks and turn drinking water light brown. The iron content is analyzed by first reducing the Fe3+ to Fe2+ and then titrating with MnO4- in acidic solution. Fe2+(aq)

60. ## Genatics

when designing a protocol to produce auxotrophs for biochemical pathways, how long should you irradiate yeast in this system to maximize the number of auxotrophic mutants? Explain your reasoning.

61. ## Pre cal

A parallelogram has sides of lengths 7 and 4, and one angle is 55°. Find the lengths of the diagonals. (Round your answers to two decimal places. Enter your answers as a comma-separated list.)

62. ## Maths

A surveyor stands 200m from the base of a tower on which an Ariel stands. He measures the angle of elevation to the top and bottom of the Ariel as 58 degree and 56 degree. Find the height of the Ariel.

63. ## college math

A survey indicated that 3 out of 5 doctors use brand x aspirin. If 2000 doctors were surveyed how many used brand x? please show me how to solve this ?

64. ## Math

Sarah can type 225 words in five minutes. She then typed 135 words in three minutes. If sarah types for 24 minutes, how many words did she type? A. What is the answer? (I answered 1080) B. Explain what the constant of variation is in the problem. Write an

65. ## math

The produce manager receives 5 containers of green beans, each weighing 7 pounds. She divides the total amount of green beans into 3 equal-weight portions. What is the weight of the beans in each portion?

66. ## math

The digit 3 appears fourteen times in tye page numbers of Chapter 1 of a book.How manypages are there in Chapter 1 of the book?

67. ## Physics

rotating space station has radius 1380 m, measured from the center of rotation to the outer deck where the crew lives. What should the period of rotation be if the crew is to feel that they weigh one-half their Earth weight?

68. ## precal : conics

find the equation of a parabola with vertex on line y = 2x, axis parallel to the y axis and passing through (3/2, 1) and (3, 4).

69. ## statistics

in a lottery, a player wins or shares in the jackpot by selecting the correct 6-number combination when six different numbers from 1 through 49 are drawn. if a player selects one particular 6-number combination, find the probability of winning the jackpot.

70. ## Physics: Static Equilibrium

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of θ with the wall. The right-hand cable had tension 960 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the

71. ## math

when james planted a tree 5 m from a window the tree just blocked from view a building 50 m away if the building was 20 m tall how tall was the tree?

72. ## language arts

El Niño is a change in how warm the ocean is. It happens when warm water from the Pacific moves eastward. No one knows why this happens. It takes place every four or five years and lasts for about a year. No two are the same. It can change the weather in

73. ## Physics

If the magnetic field in a traveling EM wave has a peak value of 17.9nT, what is the peak value of the electric field strength?

74. ## math

Consider the line 4x +3y= 12 a.) Solve the equation for y b.)State the slope of the line c.)State the y- intercept Show all working.

75. ## math

one half of what john's age was 4 years ago is equal to on of thrid of what it will be in 5 years time.How old is john now

76. ## Analytical Chemistry

I have a 0.00156 M solution of CuSO4*5H2O in water (from 0.0398 g of CuSO4*5H20 in 100 mL of water). How would I calculate the ppm of Cu of that solution from that information?

77. ## Language Arts

Which of the following correctly revises the the sentence so that it is entirely in active voice? A. It has been decided by the school at the regular teacher should not evaluate the class; instead, the assessment should be performed by a visiting scholar.

78. ## pre calculus

find 2 solutions of tan θ=.6524 in both degrees and radians. I know the answer are 33.12 degrees/.578 radians and 213.12 degrees/3.72 radians, but how do you find this? Thanks!!!!

79. ## College Algebra

The students in a political science class are divided up into three categories: liberal, conservative, or moderate. There are five more conservatives than moderates, and twice as many liberals as conservatives. How many of each type are there if there is a

80. ## precal : conics

locate the center, foci, vertices,ends of the latera recta and draw the conic. Compute the eccentricity and equation of the conic. 1) 5x^2 + 2y^2 = 100 2)y^2 - 2x - 8y + 10 = 0

81. ## Chemistry

A student performed an experiment to determine the molecular weight of a gaseous compound. Using the ideal gas law PV = nRT, and knowing the pressure, temperature, and volume of the vapor, the student calculated the number of moles of gas, n, to be 0.0443

82. ## physic

you are standing on the edge of a frozen pond next to the tree. you decide that you need to get away from the bear by backing up out onto the ice, but the ice is so slippery you can't get any traction and assume the friction between you and the ice is

83. ## algebra

find the domain of f give the function of f(x)=square root x+5

84. ## math

translate 16 less than the quotient of a number and 7 equals 3

85. ## Maths

Statistics The marks scored by a sample of 56 students are summarised by: N=56 Sum of x =3026 sum of(x-the mean)^2 =15378 A) calculate the mean and the standard deviation Mean I got - 54.04 (2.dp) Standard deviation I got - 16.72 (2.dp) Is this correct? B)

86. ## Physics

Consider the 667 N weight held by two cables shown below. The left-hand cable had tension 890 N and makes an angle of θ with the wall. The right-hand cable had tension 960 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the

87. ## calc 2

A spherical tank of radius a feet is buried in the ground. The top of the tank lies b feet below the surface of the ground.(δ=64lbs/ft^3)Find a definite integral whose value equals total work done in emptying the tank through a pipe whose opening is at

1. The distance, d(t), fallen by a free-falling body is represented by d(t)+vt-0.5gt^2, where v is initial velocity and g is acceleration due to gravity. The acceleration due to gravity is 9.8 m/s^2. If a rock is thrown downward with an initial velocity of

89. ## Physics

Period of moon=273 days Radius of moon =3,9x10^5 km Radius of satellite = 7200km Period of satellite=?

90. ## Physics HELP

How would I solve this problem? A plane travels 4300 m at an angle of 49 degrees to the ground, then changes direction and travels 6500 m at an angle of 21 degrees to the ground. What is the magnitude and direction of the planes tot displacement?

91. ## physics

A disk shaped yoyo (m=220 grams) has a 70 cm long string. The radius of the central winding peg is 2.5 mm, the outer radius of the yoyo is 5.6 cm. A) How much Torque is applied to this yoyo by the string? B) How long until the yoyo hits the bottom of the

92. ## English

1. People were deeply moved by his story. 2. His story deeply moved pople. 3. His story moved people deeply. ============== What is the active sentence of #1, #2 or #3?

93. ## science

How much water must be added to 200 g of a 10% NaOH solution to obtain 8% solution

94. ## College Algebra

Gary owns a car dealership that sells cars, SUVs and minivans. Gary has three times as many SUVs as Minivans. He has eight more cars than SUVs. If he has a total of 127 vehicles on his lot, how many of each type does he have?

95. ## COMPUTER SCIENCE

how to develop a C program that will determine whether a department-store customer has exceeded the credit limit on a charge account.

96. ## math

A welder decides to make a pyramid shaped paperweight out of flat steel. the height of the pyamid is to be 3.5in and the square base has edges of 2.0in. how much sheet metal, in square inches, will he need to form the shell? to give weight, he is going to

97. ## Chem

In the reaction that forms aluminum nitride from its elements, which element is being oxidized?

98. ## Math

What is the reciprocal of 3 3/7 Easy 7/e

99. ## Physics HELP

A bug on a picnic table travels 10 cm east, then 18 cm northward, and finally 20 cm westward. What is the bugs displacement relative to its original position?

100. ## chemistry

The average chemical bond energy in DNA molecules is about 300.00Kj per 6.02E23 bonds, estimate the number of chemical bonds that can be ruptured by a 1E-9m x-ray photon.

101. ## precal : conics

Find the equation of the ellipse having the center at the origin and the major axes on OX. a) passing through (2 sq root of 2, -2), distance between foci is (4 sq root of 2) b)passing through ( -2,4), vertex at (4, 0)

102. ## calc 2

Consider the 4 leaf rose and a circle having polar equations: r=10cos(2Θ) and r=5 with 0≤Θ≤2π, respectively. Find the area of the region that lies inside the rose and outside the circle. hint: find the smallest positive value of Θ for which the two

103. ## Math

What is the standard deviation for the given data. Round your answer to one more decimal place 3,5,6,6,9,1

104. ## Calculus

Partial fractions of (2x^2 +8x+24)/(x+2)^2 (x^2 +4) I see a repeated quadratic and an irreducible quadratic..

I do not understand verbal representation. Graphic re presentation? Numerical representation?

106. ## Language

Try to sokve this compound puzze. A)(puzzle #1) Cook= book Volley= Express= Fore= Wrist= Loud= Key= B)(puzzle #2) Case= Park= Side= Stone= Tower= Phone= Walk=

107. ## math

solve the system by substitution -4x-5y=-47 x=2y-11

108. ## physics

Hello I'm having trouble with this physics question: You are examining the loss in intensity as light passes through a fibre optic cable. The input intensity is measured as 55.1 W/m2 and the output intensity as 28.7 W/m2. Calculate the attenuation of the

109. ## English

Does this make sense? "Because bakers have the skills of a sculptor, it is for certain that wedding cakes are high art."

110. ## English

I have a homework, someone can help me pls.. Do u think being a teacher is a dream job?﻿

111. ## math

x^2 - 4 What are the: Intervals on which the graph is above the x axis Intervals on which the graph is below the x axis Intervals on which the function is increasing Intervals on which the function is increasing Im not sure how to write these intervals..

112. ## Algebra

Think we have it but want to make sure Write the standard form of the equation of each line using integers. 1. Y=-8/5x-4 Answer 8x+5y=-20 2. 4y=12+3x Answer -3x+4y=12 Thanks

113. ## Chem

How were each of the following cations utimately separated from the rest of the group and /or decorated? The use of equations may be helpful, where applicable. Ag+ K+ Nh4+ Al+

114. ## SOC 320

Which of the following is among the Courts’ means of influencing implementation? (Points : 1) Judicial review of administrative rules and rule making Direct oversight of executive branch agencies Routine judicial review of appropriations Intervening in

115. ## math

Express (a^2+ab-ac-bc)÷a^2-c^2 over a-b in single fraction. Answer is a^2-b^2 over a+c How the steps?

The cows are in the barn. Is barn a noun or adjective

117. ## maths plz help

Painters A and B take 3 hours to paint a room Painters B and C take 5 hours to paint the same room Painters A and C take 7 hours to paint the same room How long would it take all three to paint the same room?

118. ## Math

What is the numerical expression for 8[(20-4)-6]

119. ## English

Get a sneak peek of all the things to see and do in Yosemite and throughout the charming small towns outside Yosemite. ====================== There are two Yosemites in the sentence above? What does each Yosemite mean? Does Yosemite mean #1 or #2? 1.

120. ## math

for each mathematical statement below determine if it's always, sometimes, or never true. a. |m-n| = |m| - |n| b. b + (-b) = 0

121. ## Algebra

Divide and reduce to lowest terms wherever possible. 105/ 5+1/4

122. ## chemisty

how we prepare 0.5 mol of solution of hcl in 70ml in water

123. ## College algebra

One pipe can fill the swimming pool in 6h and on other in 8h. If the first run for 2h and then the second is opened. How long before the pool is full?

124. ## maths

In hoe many years time will a some of money quintuple at a rate of 4% per annum compounded quarterly?

125. ## math

In how many years time will a sum of money quintuple at a rate of 4% per annum compounded quarterly?

126. ## physics help plz :)

A bicycle spins 10 revs in 5.7 sec. The radius of the wheel is 15 cm a drop of water is 0.3 grams. What height will the drop of water reach when it comes off the wheel?--- I know that I have to use the v=we equation and that grams need to be in kg. But I'm

127. ## math

when james planted a tree 5 m from a window the tree just blocked from view a building 50 m away if the building was 20 m tall how tall was the tree?

128. ## random question

Do bears eat wolfs? plz help I need it for presentation also im new to this website so ya answer the question plzzzzzzzzzzzzzz

129. ## Trigonmetry

4 cos 2x + 3 sin 2x = 2

130. ## English

1. Mattie's first wish came true in 2001. 2. Mattie's first wish was realized in 2001. (Are both the same?) in 2001 3. in two thousand one 4. in twenty one. 5. in twenty o one. (Which reading is OK? Do you have other kinds of reading?)

131. ## Quantitative Analysis

what percentage of women have shoe sizes greater than 11.33 if the mean is 8.27 and the deviation is 1.53? 11.33-8.27=3.06/1.53=2 95/2=47.5 50-47.5=2.5

132. ## college algebra

john can usually wash a car in 45 mins. where as jim took 30 mins. for the job. one weekend they were in a hurry, so they worked together. How long did it take them?

133. ## Chemistry

What materials would be produced in the electrolysis of the following reagents? Please make sure that you correctly balance the equations! Also, please note the states of the reagents. NaCl (aq) --> NaCl (l) --> KBr (l) -->

134. ## math

Explain why the graph of g(x) = 1/x has a horizontal asymptote. What is the equation of this asymptote? Will all reciprocal functions have the same horizontal asymptote?

135. ## math

Could someone please check my answer to this question: Evaluate the expression [(x^n)(y) + (y^n)] ^-2n for x=-2, y=3 and n=-1 =[(x^-1)(y)+(y^-1)]^-2(-1) =[(x^-1)(y)+(y^-1)]^2 =[(x^-2)(y^2)+(y^-2) =y^2/x^2(y^2) =3^2/(-2)^2(3^2) =9/4(9) =9/36 =1/4

136. ## math

if someone pays with a fifty dollar bill n the fare cost \$28.10 how would i determine the change counting up ?

137. ## Math

Find the number that will make the following statement true 7x-5=4x+4

138. ## st. marys orthodox school

how much dilute sulphuric acid add for making 18 g/l of Mohr salt solution