# Questions Asked onFebruary 19, 2011

1. ## Chemistry

In aqueous solution, hypobromite ion, BrO-, reacts to produce bromate ion, BrO3 -, and bromide ion, Br-, according to the following chemical equation. 3BrO-(ag) → BrO3 -(ag)+2Br-(ag) A plot of 1/[BrO-] vs. time is linear and the slope is equal to 0.056

2. ## physics

As a woman walks, her entire weight is momentarily supported on the heel of one shoe. Calculate the pressure exerted on the floor by a high-heel shoe worn by a 50-kg woman if the heel has an area of 2.0cm^2. Express the pressure in newtons per square meter

3. ## physics

The electric field E_1 at one face of a parallelepiped is uniform over the entire face and is directed out of the face. At the opposite face, the electric field E_2 is also uniform over the entire face and is directed into that face (the figure ). The two

4. ## chemistry

The solubility of NaCl in water is 35.7g NaCl/100g H2O. Suppose that you have 500.0g of NaCl. What is the minimum volume of water you would need to dissolve it all? (Assume that de density of water is 1.0 g/mL.)

5. ## physics

The alarm at a fire station rings and a 87-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 3.9 m). Just before landing, his speed is 1.3 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman

My teacher said that if the ratio of mass (in a rock) for 40K and 40Ar was 1:3 then the age of the rock would be 2.5 billion years. I don't understand how he concluded that to be the age. The only thing he knew was that the half-life of K40 = 1.25 billion

7. ## spanish

Can any one help me with those 4? Double object pronouns Modelo: ¿Quién te compró esos zapatos? (mi tío) Mi tío me los compró. #1 ¿A quiénes les escribiste las cartas? (a ellos) #2 ¿Quién nos va a abrir la puerta a esta hora? (Sonia) #3 ¿Quién

8. ## algebra

If p(t) is the profit (in dollars) that I expect my business to earn t years after opening, use functional notation to express my expected profit after 4 years and 6 months.

9. ## Physics

A uniform chain of total mass m is laid out straight on a frictionless table and held stationary so that one-quarter of its length, L = 1.79 m, is hanging vertically over the edge of the table. The chain is then released. Determine the speed of the chain

10. ## Chemi

Photographic film contains silver bromide in gelatin. Once exposed, some of the silver bromide decomposes, producing fine grains of silver. The unexposed silver bromide is removed by treating the film with sodium thiosulfate. Soluble sodium silver

11. ## Chemistry

How many milliliters of 0.645 M K2CrO4 are needed to precipitate all the silver in 405 mL of 0.190 M AgNO3 as Ag2CrO4?

12. ## Physics

A curve of radius 72 is banked for a design speed of 120 .If the coefficient of static friction is 0.35 (wet pavement), at what range of speeds can a car safely handle the curve?

13. ## chemistry

a packaging engineer is working on a new design for cold packs. A burst chamber in the pack will contain 14.0 mL of water, which will be released and used to dissolve ammonia nitrate. a) If the solubility of NH4NO3 is 190g/100g H2O, what mass of this

14. ## Physics

A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.16 m while extending the legs. The acceleration during the jump is approximately

15. ## physics

a crate is pushed to the top of a frictionless inclined plane 15 m long with a force of 25 N. If the crate weighs 125 N, how high is the inclined plane? 0.5 m 1 m 3 m or 5 m

16. ## social studies

How does geography affect development of a city

17. ## chemistry

Find the mass of barium metal (in grams) that must react with O2 to produce enough barium oxide to prepare 1.1 L of a 0.10 M solution of OH^ -.

18. ## Physics

An immersion heater of resistance R converts electrical energy into thermal energy that is transferred to the liquid in which the heater is immersed. If the current in the heater is I, the thermal energy transferred to the liquid in time t is ? The answer

19. ## physics

Find the horizontal distance the skier travels before coming to rest if the incline also has a coefficient of kinetic friction equal to 0.228

20. ## Physics

Two positive charges of magnitude q are each a distance d from the origin A of a coordinate system as shown above. ( Figure: h t t p : / / draw.to/DS0Qid) At which of the following points is the electric field least in magnitude? At which of the following

21. ## physics

The alarm at a fire station rings and a 87-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 3.9 m). Just before landing, his speed is 1.3 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman

22. ## Chemistry

Zn(s) + 2 HCl(aq) H2(g) + ZnCl2(aq) When 25.0 g of Zn reacts, how many L of H2 gas are formed at STP? 1. 0.382 L 2. 0.0171 L 3. 22.4 L 4. 8.56 L 5. 4.28 L

23. ## physics

Help me please to Find the tension in the two wires that supoort the light fixture. M=13 kg, è=43 degrees???!!

24. ## Physics

If a curve with a radius of 85 is perfectly banked for a car traveling 71 , what must be the coefficient of static friction for a car not to skid when traveling at 86 ?

25. ## Physics

A pressure cooker is shaped like a can with a lid 25 cm in diameter. If the pressure in the cooker can reach 3.0 atm, how much force must the latches holding the lid onto the pot be designed to withstand? I have F=PA I have my P: 3.03 * 10^3 N/m^2 A=pi(.25

26. ## Chemistry

To extract gold from its ore, the ore is treated with sodium cyanide solution in the presence of oxygen and water. 4 Au(s) + 8 NaCN(aq) + O2(g) + 2 H2O(l) 4 NaAu(CN)2(aq) + 4 NaOH(aq) (a) Determine the mass of gold that can be extracted if 21.4 g sodium

27. ## physics

Water drops over 49 m high Niagara Falls at the rate of 6.0 106 kg/s. If all the energy of the falling water could be harnessed by a hydroelectric power plant, what would be the plant's power output hey can you please do this one step at a time, i couldn't

28. ## Math

You want to estimate the mean amount spent by customers at a local gas station with 98% confidence and a margin of error of no more than \$2. Preliminary data suggests that the standard dev. is \$5.1 is a reasonable estimate for the standard dev. for all

29. ## Physics

Left over from the big-bang beginning of the universe, tiny black holes might still wander through the universe. If one with a mass of 3.5 1011 kg (and a radius of only 1.0 10-14 m) reached Earth, at what distance from your head would its gravitational

30. ## physics

In Figure 8-50, a block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level, where a frictional force stops the block in a distance d. The

31. ## Finance

A three-year bond has 8.0% coupon rate and face value of \$1000. If the yield to maturity on the bond is 10%, calculate the price of the bond assuming that the bond makes semi-annual coupon interest payments.

32. ## chemistry

The solubility of NaCl in water is 35.7g NaCl/100g H2O. Suppose that you have 500.0g of NaCl. What is the minimum volume of water you would need to dissolve it all? (Assume that de density of water is 1.0 g/mL.)

33. ## physics

Water drops over 49 m high Niagara Falls at the rate of 6.0 106 kg/s. If all the energy of the falling water could be harnessed by a hydroelectric power plant, what would be the plant's power output? it says they want the answer in terms of GW

34. ## Statistics

Sarah took a Statistics midterm which consisted of 13 multiple choice questions. Each question had 6 possible response options. Sarah answered 8 of the 13 questions correctly. Assume that Sarah had the same probability of getting each question correct.

35. ## Physics (Force and Motion)

a 0.20 kg ball is released from a height of 10 m above the beach; the impression the ball makes in the sand is 5.0 cm deep while the ball stops uniformly. what is the force acting on the ball by the sand?

36. ## Physics

The maximum depth of Lake Baikal, in Russia, is 1637 m, making it the world's deepest freshwater lake. If a beam of light with an angle of incidence of 60.0 degrees enters the water from the air, what is the horizontal distance between the point where the

37. ## statistics

using a mean of 80 and a standard deviation of 12. a) what is the score that divides the distribution such that 99% of the area is below it. b) what are the scores that bound the middle 95% of the distribution

38. ## intermediat algebra

. Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -2x + 9y = 56 9x – 9y = 0

39. ## Physics

You have a circuit with a 4 uF capacitor connected in series to 2 capacitors connected in parallel (2 uF and 1.5 uF). The battery is 12 V. The first question asked what the circuit's equivalence capacitance was. I calculated it to be 1.9 uF, which is

40. ## MATHS,7TH CLASS

A RIGHT ANGLED TRIANGLE ABC IS GIVEN,WHERE AB IS 5CM,AC IS 12CM,BC IS 13CM,AD IS AN ALTITUDE FROM A TO BC,FIND THE AREA OF THE TRIANGLE AND FIND AD ALSO.

41. ## Math - Game Theory

Suppose that a decision-maker's preferences can be represented by the expected value of a utility function u. Find another utility function u' whose expected value represents the decision-maker's preferences and assigns a payoff of 1 to the best outcome

42. ## Math

What SAT score do you need to be in the top 20% of the population?

43. ## Physics

What is the magnitude of the apparent weight of a 65 astronaut 3600 from the center of the Earth's Moon in a space vehicle moving at constant velocity?

44. ## geometry

find the measures of each side of triangle abc with vertices a(-1,5), b(6,1), c(2,6) and classify the triangle.

45. ## statistics

using a mean of 80 and a standard deviation of 12. a) what is the score that divides the distribution such that 99% of the area is below it. b) what are the scores that bound the middle 95% of the distribution

46. ## Science

If the moon rotated on its axis just as quickly as Earth's, would we always see the same side of the moon? Explain. -thanks, Sandra

47. ## math algebra

the area of a rectangular garden is 120 square meters. the width is 3 meters longer than 1/3 of the length. find the legth and the width of the garden.

48. ## physics

In college softball, the distance from the pitcher's mound to the batter is 43 feet.If the ball leaves the bat at 110 mph, how much time elapses between the hit and the ball reaching the pitcher?

49. ## Chemistry- Naming Compounds

MoP Sb2(CrO4)5 And Molybdenum (VI) Phosphate I'm having trouble with these only

How would I calculate the age of a rock only given the amount of each in grams and half-life? 40K decays to 40Ar. Half life of 40K is 1.25 billion years. 40K = 20 grams 40Ar= 5 grams I think the formula is Final Amount of 40K = Initial Amount of 40K *

51. ## algebra

Find the equation of the line that passes through the points ( 8, - 15 )and(-2,5). write the equation in y=mx = b form.

52. ## algebra

Each letter represents a different number. Identical letters represent identical numbers. Rewrite the multiplication example using the correct numbers. SPACER x3 ------- PACERS

53. ## chemistry

Mechanism for the reaction between 3-methyl-2-pentene and HCl. is this right? %img836.imageshack.us/i/questionk%.jpg/% * delete the percentages for the link to work, its the only way i could post a link

54. ## fizik

i really need the answer quickly 1. Linda travels by car around one city to another with different constant speeds between pairs of cities. She travels for 35 min at 84 km/h, 17 min at 105 km/h and 50 min at 42 km/h and spends 25.0 min eating lunch and

55. ## java

Write the following methods and test them.this need to be execute it in Eclipse IDE for Java Developers 1. printVowels - this method should take a String as a parameter and print all the vowels contained in that String one character per line. 2.

56. ## Algebra

The resistance in an electric circuit varies inversely with the current. If the resistance is 12 ohms when the current is 4 amps, what is the resistance when the current is 8 amps.?

57. ## Physics

Two objects attract each other gravitationally with a force of 2.7×10−10 when they are 0.65 apart. Their total mass is 4.4 Find their individual masses.

58. ## Physics

A truck of mass 9212 kg moving at a speed of 73.2 mph has lost its brakes. Fortunately, the driver finds a runaway lane, a gravel-covered incline that uses friction to stop a truck in such a situation; see the figure. In this case, the incline makes an

59. ## Math

What is 20x+3=5 what is x. What is 4-x=9 what is x. If you can anser these i have a lot more i`m having problems with please help.

60. ## algebra

X2 [X to the second square]- 5x+1 2x-3

I posted this below but had no response. I would appreciate help with details please.How do I find the indefinite integral of h(u)=sin^2(1/5u) this is one fifth u. Does it involve double angle formulas? Thanks.

62. ## sociology

I am having a hard time writing a paper, I am not just not sure what dominant American culture is. I know the American culture is religion, holiday's, some foods, but I just cant help but think their is more to it. I would appreciate any help in the right

63. ## Biology

What organelle do plant cells have that animal cells don't? other than chloroplast.

64. ## physics

a spring with spring constant of 30 N/m is stretched 0.2 m from its equilibrium position. How much work must be done tostretch it an additional 0.1 m?

65. ## Physics

A vat in England nicknamed "Strongbow" is 19.7 m tall, but how wide is it? Suppose the vat is filled with water. A ray of light enters the water from the air at one end of the vat, reflects off the bottom at the vat's center, and exits at the opposite end

66. ## sociology

This assignment is confusing me, is there anyone that can lead me in the right direction? The assignment is as follows. If appointed to head the U.S. Civil Service Commission, what polices would you propose to reduce radical ethnic strife in the U.S. and

67. ## groundwater science

Assume that a losing stream exists in physical connection with groundwater in an isotropic unconfined aquifer. Assume that several contour lines of equal head cross the stream and intercept it. These contour lines of equal head are "V-shaped", with the

68. ## Algebra

(x=1 is the day tickets go on sale) Tickets= -0.2x^2+12x+11 1) Use the quadratic equation to determine the last day that tickets will be sold. Note. Write your answer in terms of the number of days after ticket sales begin. 2) Will tickets peak or be at a

69. ## algebra

the equation y=-1777x+27,153 can be used to predict the number y of gun deaths in the united sttes x years after 2000, that is, x=0 corresponds to 2000,x2 corresponds to 2002, x=6 corresponds to 2006, and so on. predict the number of gun deaths in 2006 and

70. ## physics

Derive the equation for velocity ratio: radius a, radius b, radius c IMA or velocity ration = (2c)/(b-a)

71. ## maths

what are coplanar lines?

72. ## Discrete Math

So, I uploaded the figure in photobucket, and if you type flutegirl516 in the search bar you will see it's the first photo. F:B→C, h:C→B, and G:A→C Is F°h°G defined? If so, what is its domain and range? Yes it is defined. And I thought that the

73. ## High School Physics

At rest, a swing is 23.7m above the ground. When Sam performs he always pulls the swing as high as he can to 45.5m. While performing Sam 88.1 kg, is moving pretty fast at his lowest point 23.7m above the ground. What is his kinetic energy at that point?

74. ## science

what's the difference between vanderwaals forces and dipole dipole interaction

75. ## trigonometry

find the acute anlge A, to the nearest seconds when ; A.log cos A= 9.12575 you might say that The cosine is >1, there's no real number solution. but there is . I think they mean log cos A= 9.12575 -10 . okay now i don't know how to get rid of the log but i

If the nations of the world were to suddenly cut off all trade with one another, what products might you no longer be able to obtain in your country? (Also discuss where these products are being imported from and the implications for YOUR country having to

77. ## algebra

_2__ = ____2___ x-9 x^2-6x-27 Solve the equations Check solutions to the equations (plug the answer back into the original equation.)

78. ## Statistics

What is your percentile rank if you have an ACT of 24?

79. ## algebra

A peddler is taking eggs to market to sell. The eggs are in a cart that holds up to 500 eggs. If the eggs are removed from the cart 2, 3, 4, 5,or 6 at a time, one egg is always left over. If the eggs are removed 7 at a time, no eggs are left over. How many

80. ## algebra

trains a and b are traveling in the same direction on parallel tracks. train a is traveling at 100 miles per hour and train b is traveling at 110 miles per hour. train a passes a station at 10:10 p.m. if train b passes the same station at 10:40 pm., at

81. ## algebra

Amy paid \$87.27 for a pair of running shoes during a 15%-off sale. What was the regular price?

82. ## physics

A car is travelling up one side of a hill and down the other side.The crest is a circular arc with radius of 45m. Determine the maximum speed that the car can have while moving over the crest without losing contact with the road.

84. ## Science

The actual alleles of an organism is its ____. - Is the answer = genotype? Thanks

85. ## finance

When performing a capital budgeting analysis, interest expense included in the cash flows should be based on the current interest cost and not the historical cost of interest. Comment.

retailing has undergone a major change in technology in the past few years with the introduction of internet trading. many customers now order their goods online. discuss the benifits and drawbacks for retailers in this growing line of business?

87. ## Science

another who am I? I an in the same chemical family as nitrogen. I am lighter than argon

88. ## physics

Through the process of doing work, energy can move between the external world and the system as the result of ____. The sentence is completed with the word FORCES. You have to rewrite the word to make the sentence true (if it is not already true.)

f'(x^2)^2=?

90. ## Calculus

Find the slope of the normal line to y= ln(15-x) at x=4

92. ## Mathematics

1.find the capacity of rectangular tone in liters.. Length 5.5 Width 3.5 height 3.6 Height 2.7 Length 4.75 width 3.5 2.Find total surface area of solid cube of volume: 3.A man earn \$1200 and spends \$450 per month. Find ratio of (a) his income to his

93. ## algebra

2/5 - 1/3 Top of complex fraction 2/3 - 3/4 Bottom of complex fraction

If a person lives over 160 years What will happen?

95. ## Earth Science

I need help finding the geological time scale of stone mountain georgia, with a longitudinal, and latitude map of the area.

96. ## bio (plasma membrane)

I understand that the plasma membrane is composed of a polar head and non polar tail. I read in my textbook that small non-polar molecules readily pass through and that polar and non-polar repel. so how do non-polar substance pass the the polar head?

97. ## Physics

A vat in England nicknamed "Strongbow" is 19.7 m tall, but how wide is it? Suppose the vat is filled with water. A ray of light enters the water from the air at one end of the vat, reflects off the bottom at the vat's center, and exits at the opposite end

98. ## reimbursement methodologies

does anyone have answers to test 38181803 for penn foster

99. ## Math

How do I solve this question? "Rory Gilmore earns \$20 per hour during the week and \$30 per hour for overtime on the weekends. One week Rory earned a total of \$650. She worked 5 times as many hours during the week as she did on the weekend. Write and solve

100. ## algebra

Solve: x-2y= -5 2x+y= -5

101. ## algebra

a speaker was so boring that one-half of the audience left after a few minutes. Five minutes later, one-third of the remaing audience left. Ten minutes later, one-fourth of those remaining left, leaving only nine people in the audience. How many people

Can someone please tell me how to do these? Suppose that f is given for x in the interval [0,12] by x= 0 2 4 6 8 10 12 f(x)= -14 -10 -6 -5 -6 -9 -11 A. Estimate f(2) using the values of f in the table. f'(2)=_______ B. For what values of x does f'(x)

103. ## math

on three consecutive passes, a football team gains 10 yards, loses 38 yards, and gains 43 yards. what number represents the total net yardage?

104. ## algebra

Tina's goal is to make 45 percent ofher shots during the basketball season. After nineteen games she has made 38 percent of her 203 shots. She has eight games left and estimates that she will shoot at about the same pace as during the first nineteen games.

how can the concept of a national identity both unite and divide people?

106. ## alegebra

The equation y=-1777x+27,153 can be used to predict the number y of gun deaths in the United States x years after 2000, that is, x=0 corresponds to 2000, x=2 corresponds to 2002, x=6 corresponds to 2006, and so on. Predict the number of gun deaths in 2006

107. ## algebra

trains a and b are traveling in the same direction on parallel tracks. train a is traveling at 100 miles per hour and train b is traveling at 110 miles per hour. train a passes a station at 10:10 p.m. if train b passes the same station at 10:40 pm., at

108. ## English

Can you please check these sentences, too? Thank you. I just wonder if you could use these expressions in a common conversation. 1) I sent John three letters but he hasn't replied (not didn't reply)to any of them. 2) When did you get that jacket? I haven't

109. ## English

I forgot to include the following sentences. I have to check the various alternatives.I believe plaster is the British for cast. 1) I fell off my bike and I broke my leg. 2)The surgeon put it in a cast (in plaster). 3)He put a cast on my leg. He casted

110. ## History

How do you think the end of the war, when it comes, will effect minority groups?

111. ## Health

So for my health class I have to make a 4 slide powerpoint and on one of the slides I have to have the Name of the Mental illness and Definition/Classification. I have the name (Hypochondria) and the definition. Is the classification the same thing or

112. ## math

how can we make numbers from 1 to 15 with three 2? (you can make this numbers only with+,-,*,/,√,⌊…⌋,⌈…⌉,...^...) e. g. :6=2+2+2 3=(2+2)-⌊2√⌋

113. ## Trigonometry

How do you simplify: -5(cot^2 theta - csc^2 theta)?

115. ## physics

2 questions to fill in the blank: 1) in order tocalculate work done, use the ___ of the force which is in the direction of motion. 2) You push against a car stuck in the mud. You will do ___ work unless you are successful in moving the car.

116. ## Calculus

Find the slope of the normal line to y= ln(15-x) at x=4

117. ## Physics/Math

what is a displacement?

118. ## Trig

find the exact value of the expression using the provided information. Find Tan (S+T) given that cos s=1/3 with s in quad I and sin T= -1/2 with T in quad IV

119. ## history

How was the society of the Roman Republic organized? How did it balance the dangers of external attack and internal division?

120. ## Finance

Mr. A has taken a car on lease. The down payment is80% of Total amount which is 200000rs. it is mutually agreed that 24equal payments would be made for the remaining amount by paying first installment todcay. which would be in addition to the down payment.

121. ## math

solve by elimination 5x+3y+5z=-16 2x+5y-z=-26 x-4y+2z=10

122. ## math

Prove that if x ∉ B and A ⊆ B, then x ∉ A.

123. ## English

Can you please help me check these sentences? Thank you very much. 1) In Hamlet's soliloquy the rub is something that makes all human beings hesitate (?) to face the undiscovered land. 2)In Hamlet's soliloquy the rub stands for an obstacle that makes human

124. ## Algebra

(4y^2)^5 __________ y ^-3

125. ## algebra

If juan can consume in one sitting one medium(12-inch diameter), deep-dish (1-inch thick)pizza, what is the minimum volume of his stomach?

126. ## algebra

The year 1991 was the last year of the twentieth century whose number is a palindrome,that is,reads the same backward and forward. How many years between the years 2000 and 3000 will be palindromic?

127. ## organic chemistry

Im working on a lab dealing with NRM of C3H8O2. carbons are 57.5 (q) , 60.1 (t), and 73.1 (t) i forget how to find the basic structure.

List 10 words that end in -ship and mean 1.quality of or state of, 2.or rank of

129. ## algebra

Amy paid \$87.27 for a pair of running shoes during a 15%-off. What was the regular price?

130. ## physics

How gravitational acceleration is used to benefit mankind and environment.how can rural people also benefit from the use of gravitational acceleration?

131. ## English - Native speakers

Hello! Do you say distribution of products at foreign markets or on foreign markets? Thank you :)

132. ## physics

If the wavelength of a sound wave in an unknown material is 20 centimeters and the frequency is 1700 Hz. What is the speed of the sound wave?

133. ## physics

the kilowatt-hour is a unit of: force, work, power, or time?

134. ## science

Who am I? My properties are very similar to those of sodium, I am lighter than the element that has an atomic number one less than mine...Help me please...

discuss the ways in which a business might respond to growing awarness of environmental issues among its customers?

136. ## science

which planet other than earth may be livable by humans?

137. ## science

Work is done when a force is applied or an object OR a force causes an object to move I think the second one.

138. ## MATH

i NEED HELP SOLVING THIS WITH SUBSTITUTION 0.1X + 0.4Y= -2.6

139. ## Resume writing

can someone proofread my resume profile. Highly motivated University of Maryland University College student seeks exposure to the practical application of Management Studies concepts as a management professional in a dynamic, fast paced corporate

140. ## psy

Professor Klinger says that all of your ideas come from interaction with the environment rather than anything that you were born with. The professor is advocating a theoretical perspective based on a(n) ______________ view. (Points : 1) tabula rasa

141. ## Physics

I have a metal sphere that weighs 0.28g, what is the most likely material of which the sphere is made??

What will be the impact on society If people live more then life expectaney?

143. ## algebra

x=6/27 = 1/x

What will be the impact on society if people live more than life expectancy?

145. ## algebra

x+3/x^-x-12 + 2/x+3 = 1/x-4

146. ## physics

if density 0.705 calculate the force

147. ## physics

A student is skateboarding down a ramp that is 5.5 m long and inclined at 19° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 2.9 m/s. Neglect friction and find the speed at the bottom of the ramp.

148. ## OLSAT

I don't know if this can be answered here but, I will ask. My son took the OLSAT test. He is a first grader but, on my assessment results he is listed as a 4th grader. His SAI is 110. Would this error change his results?

149. ## Algebra

_x+6___ = _1_ 27 x is this where I cross multiply?

150. ## Algebra

Complex Fractions _1_ - _2_ x^2 3 ____________ _1_ - _5_ x 6

-11^-3

8x^3 + 1728