# Posts by Annie

Total # Posts: 835

**Stoichiometry**

A gas mixture at 27 C and 750 torr contains acetone vapor with 70% saturation. Calculate the temperature to which the gas must be cooled, at constant pressure to condense 40% of the acetone.

**Math**

Sue drives 36 miles to the fair. Every 4 miles, she sees a sign to the fair. . How many signs will she see on her trip in all?

**Chemistry**

calculate the volume of a rectangular prism with a length of 5.6 , a width of 2.1 , and a height of 6.6 .

**Chemistry**

Suppose you are asked to find the area of a rectangle that is 2.1- wide by 5.6- long. Your calculator answer would be 11.76 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two significant figures, your ...

**Physics**

In a World Cup soccer match, Juan is running due north toward the goal with a speed of 7.70 relative to the ground. A teammate passes the ball to him. The ball has a speed of 13.3 and is moving in a direction of 30.5 east of north, relative to the ground. a) what is the ...

**math**

Every year there is a race to the top of the empire state building. In 1993 the winner got to the top in 10 minutes, 18 seconds. how many stairs did the winner go up per second, rounded to the nearest whole number

**Math**

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

**Precalculus**

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

**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 percent of the original...

**Physics**

12

**math**

Show that f and g are inverse functions algebraically. f(x)=x^3/2 g(x)=3 cuberoot 2x My work so far: (3sqrt2x)^3 ------------ 2 I need help on the numeral part of the expression

**pre-calc**

Show that f and g are inverse functions algebraically. f(x)=x^3/2 g(x)=3 cuberoot 2x My work so far: (3sqrt2x)^3 ------------ 2 I need help on the numeral part of the expression

**economics**

Suppose that when a firm increases output by 20%, long-run total cost increases by 50%. The firm will experience

**health**

Whats the answer?

**Math**

What scenic structures are featured in chapter 2 Problem Solving on Location?

**health**

hey .... if its wrong why don't you put the answer !!!

**math**

x> 2

**Organic Chemistry**

a) What would be the product formed if diphenylacetylene were reacted with aqueous sulfuric acid? b) What would be the product formed if diphenylacetylene were reacted with two equivalents of HBR?

**government**

The first American voters were only white, male ---------s

**statistics**

A particular report included the following table classifying 711 fatal bicycle accidents according to time of day the accident occurred. Time of Day Number of Accidents Midnight to 3 a.m. 38 3 a.m. to 6 a.m. 29 6 a.m. to 9 a.m. 64 9 a.m. to Noon 78 Noon to 3 p.m. 98 3 p.m. to ...

**calculus**

Please help! ∫17dx/x^2(sqrt(x^2+49)) .. let x=7tan(θ). thank you so much for your help!

**math**

the gerund phrase is: studying calculus for the noun function I put: predicate noun, correct?

**essay**

what are some some similarities and differences between dawn and night by elie wiesel?

**Reading comprehension**

False

**Reading comprehension**

Reading - Annie, Tuesday, May 8, 2012 at 9:56pm The fish sizes r on a graph Blue fish. 70 feet Red fish. 45 feet Question true or false The blue fish is not as long as the red fish. True or false

**Reading comprehension**

False

**Reading comprehension**

Reading - Annie, Tuesday, May 8, 2012 at 9:56pm The fish sizes r on a graph Blue fish. 70 feet Red fish. 45 feet Question true or false The blue fish is not as long as the red fish. True or false

**Reading comprehension**

@Ms Sue I copied the statement wrong it is The blue fish is not as long as the red fish

**Reading comprehension**

Ms Sue did u see my answer

**Reading comprehension**

I think the answer is false because not as long means that the red fish is longer

**Reading comprehension**

Reading - Annie, Tuesday, May 8, 2012 at 9:56pm The fish sizes r on a graph Blue fish. 70 feet Red fish. 45 feet Question true or false The red fish is not as long as the blue fish. True or false

**Reading**

The fish sizes r on a graph Blue fish. 70 feet Red fish. 45 feet Question true or false The red fish is not as long as the blue fish. True or false

**Reading**

I need to know if the statement is true or false

**Reading**

If a blue fish is 70 ft long and a red fish is 45 feet long. This is statement true or false. A blue fish is not as long as a red fish

**Math**

What is 0.5 to the tenth power, as a fraction? a.k.a. 0.0009765625 as a fraction

**english**

In the book Roll of Thunder, Hear my Cry, what is the double meaning of Mr. Granger's words when he says he ain't gonna stand for no hanging on his place, and if y'all touch one hair on that boy's head, he's gonna hold every man responsible"?

**chemistry**

what is the volume at STP of a sample of CO2 that has a volume of 75.0 ML at 30c and 680 mm Hg

**chem**

a volume of 20. l of O2 os warmed from -30c to 85c what is the new volume if the pressure is kept constant

**geometry**

If m = 6.25 cm and n = 10 cm, what is the measure of angle ?

**Math**

Error Analysis: A friend says that the retail price of an item with a wholesale price of $80 is $100 after a markup of 125%. Describ and correct the error in the person's statement.

**English**

I read A partial rememberance of a puerto rican childhood. I'm suppose to be writing a essay but I need a thesis to do an outline.

**English**

Women is going crazy that a man doesn't care for her so it is driving her crazy. Men do harsh things like abusing their wife.

**English**

I am writing a paper and I was wondering does this sound like a good thesis? Cofer shows not only the crazyness women but also shows how men can be harsh.

**Chemistry PLEASE HELP!!**

energy from glucose is obtained from this equation when it is oxidized in the body C6H12O6 + 6O2 --> 6CO2 + 6H2O What is the catalyst in this equation?

**English**

isn't the question actually something like "You're walking home alone when you....." ??

**algebra 1b**

time= distance/speed Because the time used to travel is the same (regardless of the difference in distance) we can set the freight trains time equal to the passenger train's time. Let's start off with the freight train. The distance is 310. It says the speed is 18 mph ...

**physics**

A 6.5 g bullet leaves the muzzle of a rifle with a speed of 347 m/s. What total constant force is exerted on the bullet while it is traveling down the 0.83 m long barrel of the rifle?

**physics**

The sum of two forces, one having a magni- tude of 2 N acting due west and other having a magnitude of 8 N acting due north is?

**physics**

A blimp is traveling due North at 80km/hr with respect to the air, while the wind is blowing from northeast at 25km/hr with respect to the ground. What is the velocity of the blimp with respect to the ground? Thanks.

**Chemistry**

1) Prepare 100mL of 10%w/w HCl from 37%concentrated HCl(density of 37%HCl =1.19g/ml) 2) Prepare 100mL of 10%w/v HCl from 37% concentrated HCl(density of 37%HCl=1.19g/ml) Can you please show the calculation steps for 1) & 2)? Is 10%w/v HCl the same as 10%w/w HCl? Thanks.

**English - thank you ms sue i will wait**

i will wait and thanks a lot

**English - please help i had posted 3 times and no**

please can you make correction in my short story. i am very bad at grammar and even my parents does not khnow english well. can you proof reed my short story. Love-Hate story “Happy birthday Khushi”, her family said as they came to her room at midnight. “Thank ...

**eng lit**

please proof read my short story please and make some correction Love-Hate story “Happy birthday Khushi”, her family said as they came to her room at midnight. “Thank you, Mom, Dad and my lovely sister”, Khushi said with a huge smile. Khushi laid down on ...

**Chemistry**

Oh, sorry. 25 g of Zinc and 30 g of sulfur. I already found that Zinc is the limiting reagent, but I'm stuck on the rest.

**Chemistry**

Zinc and sulfur react to form zinc sulfide according to the equation Zn+S=>ZnS a) How many grams of ZnS will be formed? b) How many grams of the excess reactant will remain after the reaction is over?

**Physics help.**

If a curve with a radius of 94.5 m is perfectly banked for a car traveling 72.4 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 96.4 km/h?

**Biology**

The genes for hair color and eye color are linked

**Math**

r=40-2t shows the relationship between the average rate of speed, r, of a car in meters per second, and the time, t,in seconds, as the car slows down.

**College Physics**

A Fraunhofer diffration pattern is produced on a screen 210cm from a single slit. The distance from the center of the central maximum to the first-order maximum is 7560 times the wavelength (lambda). Calculate slit width. Answer in __m

**College Physics**

The lines in a grating are uniformly spaced at 1530 nm. Calculate the angular separation of the second order bright fringes between light of wavelength 600nm and 603.11nm. Answer in __mrad

**statistics**

f someone scored two Standard Deviations above the Mean on a standardized test where the Mean = 100 and the Standard Deviation = 15, then that person’s numerical score would be…? A. 125 B. 130 C. 160 D. 90th Percentile

**English**

The contestants, Malcolm and (she,her) listened carefully to the first question.

**Chidren,Families,and Society**

Larry is a very aggressive four-year-old child.he watches many television programs that contain violence.it's most likely that

**history**

Help needed! I'm comparing France and the USA. If France had the Paris vs. Versaille conflict with regards to the city capital. As much as capitals showed the unity amongst the people, it also produced conflicts between different sectors of society. What did the United ...

**Chemistry**

How to prepare 100mL of 3% w/w Hydrogen Peroxide from 30% w/w Hydrogen Peroxide?Specific Gravity of 30%w/w Hydrogen Peroxide is 1.11g/mL. Can you please show the calculation steps? Thanks.

**history**

okay. thank you :)

**history**

Thank you. :) Though I was thinking, should it be "full potential"? or just the potential.. I mean, urban life is still moving forward so there's no way of telling that it has reached its full potential, right? :) Or maybe I'm just overthinking.

**history**

Well, basically, here is what I've got so far.. I believe that the industrial revolution promoted urban life. To a certain point, people would a associate urban living to better living. Migration from rural areas to urban areas was popular back then. During the industrial ...

**history**

Cities and urban areas were a source of economic opportunities in the post-Medieval Western world. How was the full potential of Western cities and urban areas in this regard was realized during the Industrial Revolution?

**Chilsren,Families,and Society**

18.Which of the following statements implies rules of confidentality?A.You can tell the librarian that you heard that Joey's father was arrested for drug use.B.Parents must give permission to release school records to the child's therapist at the community clinic. C. ...

**Chemistry**

How do I prepare 100mL of 10g/L HCl from concentrated HCl(37%HCl, density 1.19g/mL) Is it 2.28mL of conc HCl dilute to 100mL with water? Please show the calculation steps.

**physics**

t(s)=0.0,1.0,2.0,3.0,4.0,5.0,6.0,7.0 v(m/s)=0.0,4.6,8.9,13.4,18.0,22.9,27.6,32.0 find the area underneath the graph between t=2.0s and t=6.0s, i know i will have to break this down into two separate shapes, a rectangle and a triangle then add them together, i just don't ...

**online**

I bought car for $32.000. Interest 11%. What my payment and how long will take?

**math**

The product of two consecutive intergers is 56. Find the intergers.

**Math**

35

**Engineering/Chemistry**

m_dot = 2000 kg/h q = 111600 kJ/h T_final = 95C C_p = 3.9 kJ/(kgC) equation: q = m_dot*c_p*(T_initial-T_final) plug in all the value and solve for T_initial *NOTE* remeber deta_T both in C and K is the same. So don't worry

**Science**

Can u help me find a picture of a sea sponge budding ?

**chemistry**

Aluminum metal generates H2 gas when dropped into 6.00 M HCl. Calculate the mass of H2 that will form from the complete reaction of 0.365 g Al with 8.40 mL of 6.00 M HCl.

**math**

Determine the values of k for which the function f(x)= 4x^2-3x+2kx+1 has two zeros , check these values in the original equation

**math**

Determine the values of k for which the function f(x)= 4x^2-3x+2kx+1 has two zeros , check these values in the original equation

**math**

Factor completely x(x+1)^2-4(x+1) (2x+3)^2-9

**math**

solve the equation (1/4)^x = (1/8)^2x-1 solve the equation 3^-x+2=27^x-4

**science**

Why is a pizza cutter handle a lever?

**bio**

sorry i meant arteries

**bio**

name three major blood vessels that branch off the aortic arch and the body part the blood is carried to name two major artries that branch off the dorsal aorta and the organ they carry blood to

**bio**

for a fetal pig why is it difficult to find the urinary bladder by describing the specific location ? what structures in the umbilical cord remove waste materials from a fetal mammal?

**bio**

The fetal pig does not have functional lungs, since the lungs are not being used is there any need to transport blood tot he lungs before the fetus is born

**bio**

I did a pig dissection , but i am not to sure about these questions, any help would be great ! 1. The lungs of a fetal pig serve as a protection for what important body organ 2. The respiratory system is located on the ventral side of the pigs body, what 3 ways is the tract ...

**math**

in 2nd year Adam owed $ 977.53, in the 3rd year he owed $ 1036.18 and in the 4th year he owed $1098.35 how much was the loan originally, and determine the future value of the loan after 10 years

**math**

Loan #1 Year Amount owed 1 $3796 2 $3942 3 $4088 Loan # 2 Year Amount owed 1 $977.53 2 $1036.18 3 1098.35 For loan #1 is simple interest. Loan #2 is compound interest How much was each loan originally Determine the future value of each loan after 10 years No one has answered ...

**math**

Vlad purchased some furniture for his apartment. The total cost was $ 2943.37. He paid $ 850 down and financed the rest for 18 months. At the end of the finance period .Vlad owed 4 2147.28 . What annual interest rate, compounded monthly , was he being charged ? Round your ...

**math**

oh sorry 6%/a

**math**

Sally invests some money at 65/a compounded annually. After 5 years . she takes the principal and interest and reinvests it all at 7.2%/a compounded quarterly for 6 more years. At the end of this time, her investment is worth $ 14 784.56 . How much did Sally originally invest?

**Math**

on the day Rachel was born, her grandparents deposited $ 500 into a savings account that earns 4.8%/a compounded monthly . They deposited the same amount on her 5th, 15th, and 10th birthdays. determine the balance in the account on Rachel's 18th birthday

**Math**

oh sorry 45%/a

**Math**

Bermie deposited $ 4000 into an account that pays 45/a compounded quarterly during the first year. The interest rate on this account is then increased by o.2% each year. Calculate the balance in Bernie's account after three years.

**Math**

Sara buys a washer and a dryer for $2112.She pays $500 and borrows the remaining amount. A year and a half later she pays off the loan, which compounded semi-annually, was Sara being charged.

**physics**

Thank you very much! I appreciate your help! :)

**physics**

A student rides on a train traveling at Vt = 36ikm/hr (with the respect to the ground). What are the speed and the velocity of the student with respect to the ground if he runs at 5.0im/s? -5.0 m/s? 5.0j m/s perpendicular to the direction of motion of the train?

**Math**

Tia is investing $ 2500 that she would like to grow to $ 6000 in 10 years, at what annual interest rate compounded quaterly must Tia invest her money