# Audrey

Popular questions and responses by Audrey-
## algebra

Four different accounts are described below. Order the accounts according to their values after 20 years, from greatest to least. 1.You deposit 1500$ in an account that earns 5% annual interest compounded quarterly. 2. You deposit 1500$ in an account that

*asked on March 10, 2020* -
## Calculus

A water trough is 5 m long and has a cross-section in the shape of an isosceles trapezoid that is 30 cm wide at the bottom, 70 cm wide at the top, and has height 40 cm. If the trough is being filled with water at the rate of 0.2 m3/min how fast is the

*asked on October 18, 2016* -
## College Algebra

The load L a horizontal beam can safely support varies jointly as the width w and the square of the depth d and inversely as the length l. If a 12-foot beam with width 6 inches and depth 8 inches safely supports 600 pounds, how many pounds can a 14-foot

*asked on January 21, 2013* -
## math

a dollar bill has an area of 15.86 square inches. If a dollar bill is 2.6 inches long, how wide is it? Please explain how you got please!!!

*asked on May 17, 2011* -
## Trig

How do you convert rectangular equations into polar equations? If x4−y4=xy , then r2=atan(b); What is a? What is b?

*asked on December 13, 2010* -
## Math

The function f is defined by f(x)=2x^2-6x+5 Find the set of values of p for which the equation f(x)=p has no real roots. Thanks in advance!

*asked on August 17, 2017* -
## Math

Solve:(sec 35 degrees) (csc 55 degrees) - (tan 35 degrees) (cot 55 degrees)

*asked on October 21, 2010* -
## Algebra

Convert 6^x = 1296 to a logarithmic equation

*asked on August 2, 2009* -
## Algebra

Find the solutions of the equation 3x^2 – x – 4 = 0.

*asked on July 7, 2009* -
## Math

1. What is a reasonable distance between two cities? • 200 km

*asked on May 6, 2016* -
## Math

which property is shown by 0+9=9 A.) Distributive Property B.) Commutative Property of Addition C.) Identity Property of Addition D.) Associative Property of Addition I think its A but I'm not really sure

*asked on August 24, 2018* -
## chemistry

In the following equation, which species is the oxidizing agent? KCLO3 --> KCL + KCLO4 In the same are, How do you know that Cu is the reducing agent in this equation: AgNO3 + Cu ---> Cu(NO3)2 + Ag

*asked on December 9, 2010* -
## chemistry

What is the value of [OH-] in a 0.015 M CH3COOH solution? Ka = 1.8 x 10-5 I started by writing the equation: CH3COOH + H2O H3O+ + CH3COO- Ka= [H3O+][CH3COO-]/[CH3COOH]= 1.8 E-5 ... Now what? I don't understand where OH relates to this ...

*asked on November 15, 2010* -
## geometry

At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take

*asked on September 13, 2010* -
## Chemistry

An analytical chemist weighs out 0.225g of an unknown diprotic acid into a 250mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.0700M NaOHsolution. When the titration reaches the equivalence point, the

*asked on November 14, 2016* -
## Language Arts

1. When you paraphrase a line of poetry, what do you do? A.You turn it into a question. B.You put it in your own words. C.You add humor to it. D.You copy it down exactly HELP!!

*asked on February 19, 2016* -
## Physics

Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.65 μC charge. (Let A = 1.65 μC, B = 6.60 μC, and C = −4.20 μC.)

*asked on September 5, 2015* -
## Spanish

¿Cómo son las monedas de pesos mexicanos?We had to do a reading and type the answers-not sure about this question Hay monedas de un peso, cinco pesos, diez pesos y de centavos. ¿En cuáles países se usa el dólar estadounidense? Panamá y Puerto Rico y

*asked on February 21, 2012* -
## chemistry

Calculate the Gibbs free energy change for the reaction below when initial concentrations of CR3+ and Cu2+ are 1 M (F= 96500 J/V mole e-) 2Cr3+ (aq) + 3Cu (s) --> 2Cr (s) + 3Cu2+ (aq) I assume we use the deltaG= -nFE equation, but how do you know n when Cr

*asked on December 9, 2010* -
## English- rhyme schemes

What is the rhyme scheme of William Shakespeare's "Full Fathom Five" and "Where the Bee Sucks There Suck I" ? Most of Shakespeare's poems are in iambic pentameter but these two aren't.

*asked on December 26, 2007* -
## maths

The number of arrangements of five letters from the word 'magnetic' that contain the word net is: a)60 b)100 c)360 d)630 e)720 we're still doing this at school and I still don't get it; since I have to use three of the eight letters I only have five left

*asked on October 19, 2007* -
## Statistics

The distribution of cholesterol levels of the residents of a state closely follows the normal curve. Investigators want to test whether the mean cholesterol level of the residents is 200 mg/dL or lower. A simple random sample of 12 residents has a mean

*asked on August 4, 2013* -
## math- quick help!

The area of the smallest (shaded) square measures 1 square unit. What is the area of the largest square? (there are 7 squares) Please, please, please help me!!!

*asked on November 14, 2011* -
## chemistry

a cell is constructed by immersing a strip of silver in .10 M AgNO3 solution and a strip of lead in 1.0 M Pb(NO3)2 solution. A wire and salt bridge complete the cell. What is the potential of the silver electrode in the cell?

*asked on December 9, 2010* -
## chemistry

Calculate the value of [H3O+] in a 0.01 M HOBr solution. Ka = 2.5E-9 I'm having a problem with just writing the equilibrium expression. do you add H2O to the HOBr? HOBr + H2O H3O+ + OBr- but then you could say that because HOBr = .01 M, then 0Br- = .01 M,

*asked on November 23, 2010* -
## statistics

n=97,x=46;98% confidence

*asked on December 6, 2009* -
## physics

an immersion heat can supply heat at a rate of 5.2 x 10 to the power of 2 joules per second. calculate the time that it wil take to completly evaporate 1.25 x 10 to the power of minus 1 kg water initially at a temperature of 21 degrees celsius

*asked on January 20, 2008* -
## English- poetry

What is the definition of volta? How does the volta change the mood of a poem?

*asked on October 23, 2007* -
## maths

Find the equation of each line a) with an x intercept the same as 2x-5y=10 and parallel to x=4 b) with an x-intercept of -4 and a y-intercept of 6 please help me, I have no idea how to do these

*asked on October 16, 2007* -
## Pre-Algebra

which symbol will make |-8| ? 8 true A.) > B.) < C.) = D.)its a equal (=) sign with a line (/) though it and I don't know whats its called..sorry but I think its C

*asked on August 24, 2018* -
## Chem(redox rxn)

How do you know which element is being oxidized? Oxidation is lost, Reduction is gained. So in this equation: 2 MnO4^- + 5 C2O4^2- + 16H+ (right arrow) 2 Mn^2+ + 10 CO2 + 8 H2O what element is oxidized? a. no element is oxidized b. Mn c. C d. O my answer

*asked on June 20, 2018* -
## sience

how are babies born

*asked on September 21, 2017* -
## Statistics

The probability that a randomly selected two-year-old male stinkbug will live to be three years old is .59963 what is the probability that to randomly selected two-year-old male stinkbugs will live to be three years old? What is the probability that for

*asked on February 15, 2017* -
## Calculus

A particle moves according to the equation of motion s(t)=t^2-2t+3 where s(t) is measured in feet and t is measured in seconds. Find the total distance traveled in the 3 seconds.

*asked on October 26, 2016* -
## GC

A circular fountain has a diameter of 12 feet. A 2-foot wide path surrounds the fountain. What is the total area of the fountain and the path around it?

*asked on April 5, 2016* -
## Math

How many perpendicular bisectors can be constructed for a line segment? A. 0 B. 1 C. 2 D. infinitely many I think D!

*asked on February 19, 2016* -
## Statistics

Dr. Hernandez plans to measure FEV in a random sample of n young women from a certain popu- lation, and to use the sample mean y ̄ as an estimate of the population mean. Let A be the event that Hernandez’s sample mean will be within ±100 ml of the

*asked on May 4, 2014* -
## Statistics

A statistical test is performed, and its P-value turns out to be about 3%. Which of the following must be true? Pick all that are correct. The null hypothesis is true. There is about a 3% chance that the null hypothesis is true. The alternative hypothesis

*asked on August 4, 2013* -
## Solve the inequality

Solve the inequality. Write the solution in interval notation. (x+14)/(x-8)≥ 1

*asked on May 2, 2013* -
## nursing

What would a women with type 1 diabetes test glucose score be is she did not fast 2 hours prior?

*asked on August 14, 2012* -
## physics

If the force of friction acting on a sliding crate is 79 N, how much force must be applied to maintain a constant velocity? 79N so... What will be the net force acting on the crate? What will be the acceleration?

*asked on October 2, 2011* -
## MATH

There are 231 cubic inches in a gallon. A large juice can has a diameter of 6 inches and a height of 10 inches. How many gallons of juice does the can hold? Round your answer to the nearest tenth. I am clueless please please help me!!!!

*asked on May 17, 2011* -
## math

a back yard is shaped like a parallelogram with a height of 32 feet and a base of 100 feet. One bag of grass seed covers 125 square feet. What is the least number of bags of seed needed to seed the lawn? Also, please explain how you got it.

*asked on May 17, 2011* -
## algebra 2!

Given f(X)=the square root of x-2 and g(x_=6/x-3 (+1), write the composite function g(f(x)) and state its domain. Where is the resulting function defined?

*asked on May 5, 2011* -
## Algebra

Perform the indicated operations of 5/8-(2-7)

*asked on April 19, 2011* -
## Trig

A curve with polar equation r=(8)/7sinx + 36cosx represents a line. This line has a Cartesian equation of the form y=mx+b ,where m and b are constants. Give the formula for y in terms of x . For example, if the line had equation y=2x+3 then the answer

*asked on December 13, 2010* -
## chemistry

SF4 ---> SF2 + F2 rate constant (k) = .011 l/molxS [SF4]2 How many minutes will it take for the concentration of SF4 to be reduced from 2.5 M to .25 M? I said this was a 2nd order reaction and used : (1/final)= kt + (1/initial) and solved for t. the answer

*asked on December 12, 2010* -
## chemistry

what is the pH of a solution that is .15 M in HOCl and .25 M NaOCl after .05 mol HCl/L has been bubbled into the solution? this is what I did: HOCl + H2O ----> H3O+ + OCl- .15 .25 -.05 +.05 --------------------------- .1 .30 3.5E-8=[H3O][.3]/[.1] H3O=

*asked on November 23, 2010* -
## chemistry

The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4? N2O4(g) 2 NO2(g)

*asked on November 15, 2010* -
## statistics

The heights of a large population of students have a mean of 60" with a standard deviation of 3". What is the mean of the resulting distribution of sample means for n =16?

*asked on October 17, 2010* -
## geometry

At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take

*asked on September 13, 2010* -
## Communication and Gender Studies

List titles and artists of contemporary or older songs in relationship to gender and family. What message do the lyrics of the song convey considering the relationship to gender and family?

*asked on July 13, 2010* -
## Communication and Gender Studies

List titles and artists of contemporary or older songs in relationship to gender and family. What message do the lyrics of the song convey considering the relationship to gender and family?

*asked on July 13, 2010* -
## Communication and Gender Studies

How does the language we use, including the actual words that we have to name and describe things build our stereotypes?

*asked on June 21, 2010* -
## Communication Language Studies

Supply rhyme (Given a word "fish", offering "dish") Totally confused, may be it is just me, but I am not understanding what is asked for here? A rhyme? If so, referring to those words? If so, I am stil lost Please help. Thanks!

*asked on March 20, 2010* -
## maths

I have an illustration in my book of a quadrilateral inside a circle. The quadrilateral is ABCD; AB is a vertical line and then AC and BD are the same length, but AC slopesd downward and BD upwards. Finally, there's CD; it's not vertical, as it slopes

*asked on October 25, 2007* -
## Algebra 2

1.) Write a system of equations that has NO solution. 2.) If you wanted to eliminate the y variables in the system of equations below, what would you multiply the first and second equations by?( Do not solve the equation) 2x-3y=8 7x-4y=11

*asked on October 5, 2007* -
## Career in medicine?

I am a senior in high school and I am considering going into medicine when I graduate. When I say medicine I don't mean nursing, I have always wanted to be a doctor. I will say that I am "financially challenged". I know that med school is expensive to say

*asked on September 22, 2007* -
## english beowulf

Who destroyed the Heorot and how? My answer: I think Grendel destroyed the Herot but I am not sure how. This story is hard to comprehend!

*asked on August 31, 2007* -
## English-Beowulf

Who is Scyld? Where is he from? Where does he go? What does he do? Why does the poem begin here rather than with Hrothgar and Grendel? Scyld id Beowulf's father. Scyld was a Danidh king from the Scandion Lands. Scyld leaves to protect Lord Frea where he

*asked on August 31, 2007* -
## Math

Find the axis of symmetry. y = -x^2+8x+2 4

*asked on June 10, 2007* -
## Math

The equation h=-16t^2+112t gives the height of an arrow, shot upward from the ground with an initial velocity of 112ft/s,where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach a height of 120ft. Put in h for

*asked on June 9, 2007* -
## Math - Ratios

Suppose that 48 out of every 120 students at Piedmont like to dance. And, of the people who like to dance, 3 out of 5 plan to enroll in the Dance Class for next Fall. Based on these ratios, if you survey 500 students at Piedmont, how many students would

*asked on April 14, 2020* -
## algebra

2^(3z+9)=8^(2z+1)

*asked on March 9, 2020* -
## History

i need help on this Utah history quiz.

*asked on March 5, 2020* -
## Math

I need help to classify the solid figure. Lesson 9: Three-Dimensional Figures CE 2015 Math 7 B Unit 2: Measurement Assessment

*asked on March 4, 2020* -
## Social Studies

The Continental Army gained a knowledge of professional tactics and drill from a Prussian military mercenary, ______________________ a Major General Charles Lee b General George Washington c Baron Friedrich Wilhelm von Steuben d Marquis de Lafayette

*asked on October 16, 2018* -
## Spanish

URGENT!! why is gender important in spanish

*asked on October 15, 2018* -
## Pre-Algebra

1)(6.0 × 10 to the 5th power) × (3.0 × 10 to the 4th power) A) 18 × 10 to the 20th power. B) 18 × 10 to the 9th power. C) 1.8 × 10 to the 20th power. D) 1.8 × 10 to the 9th power. 2)(5 × 10 to the -2 power) ÷ (2 × 10 to the 3rd power) A) 2.5 ×

*asked on September 11, 2018* -
## Science

Which of the following is not a modal? A.) An ant farm B.) A bicycle C.) An atlas D.) A plastic human skeleton I'm not really sure what the answer is

*asked on August 23, 2018* -
## Math

A recipe calls for 3 cups of milk for 4 pancakes. To use this recipe to make 16 pancakes, how many cups of milk are needed?

*asked on January 16, 2018* -
## Math

Solve this pair of equations by the elimination method: 4x-3y=-4 3x=2y-4

*asked on April 19, 2017* -
## math

If I work for 4/7 of a week, how many days off do I get in total over three weeks?

*asked on March 18, 2017* -
## Chemistry

When a 6.50g sample of solid sodium hydroxide dissolves in 100.0g of water in a coffee cup calorimeter, the temperature rises from 21.6C to 37.8C. A.) Calculate the quantity of heat (in kJ) released in the reaction. (I know the answer, but can you show the

*asked on March 14, 2017* -
## Chemistry

Calculate the molarity of the H2SO4 solution if 17.45 mL of NaOH was necessary to reach the endpoint of titration. The molarity of the NaOH solution was 0.425 M and 26.30 mL of H2SO4 was added to the Erlenmeyer flask. H2SO4(aq) + 2 NaOH (aq) -----> Na2SO4

*asked on February 25, 2017* -
## civic

what are the limitatins to human rights

*asked on January 13, 2017* -
## maths

cornel`s walking pace measures 60cm .How many metres has he walked after taking 50 paces?

*asked on January 10, 2017* -
## math

Warner Cable Company needs to replace 5 vehicles. It considering 2 different types: Type HC with a higher cost and higher gas mileage and Type LC with a lower cost and lower gas mileage. Vehicle HC is $35000 and Vehicle LC is $28000. HC averages 43 miles

*asked on December 1, 2016* -
## science

most of the life of a cell is spent in a period of growth and development called_____.

*asked on November 30, 2016* -
## Calculus

Find the equation of the tangent line to the curve 2x^2y-3y^2=-11 at the point (2,-1).

*asked on October 26, 2016* -
## Chemistry

Describe the procedure you would follow to determine the concentration of Vitamin C in a sample if the volume of DCPIP required to reach the endpoint was more than the 25-mL flask could hold. Note the titration must still be carried out in the flask. Be

*asked on May 1, 2016* -
## Chemistry

Describe the procedure you would follow to determine the concentration of Vitamin C in a sample if the volume of DCPIP required to reach the endpoint was more than the 25-mL flask could hold. Note the titration must still be carried out in the flask. Be

*asked on May 1, 2016* -
## math

Darleen gets $10 a week allowance. She walks her neighbor's dog 6 days each week and earns $3 each day. She earns $7 an hour doing odd jobs. Darleen wants to save $15 a week, give $5 a week to charity, and have at least $20 each week to spend. How many

*asked on February 22, 2016* -
## Chemistry

When aluminum is reached in a closed container with 8.36 g of O2, how many grams of Aluminum oxide can form

*asked on February 22, 2016* -
## Social Studies

1. Which BEST describes the differences that divide Maayan and Muhammad? A. age and interests B. physical barriers C. culture and politics** D. economic status 2. How does Maayan most directly experience the conflict in Israel? A. through treating victims

*asked on February 19, 2016* -
## Social Studies, 6th Grade.

HELP!! I don't know this question: where would you most likely find south america's largest cities? Help! Someone tell me what the answer is!!! HELP!!!! Please help me. Someone answer my question.

*asked on January 5, 2016* -
## Math

Help me! T~T How do you subtract with algebra?

*asked on November 12, 2015* -
## math

What is the best order-of-magnitude estimate for 0.000002?

*asked on September 15, 2015* -
## washington

Victoria buys two pairs of sunglasses for $8 each.About how mucho did she pay for Both pairs of glasses?Foundation to the nearest ten.Solbes the problem using the gourmet Stephen plan

*asked on September 15, 2015* -
## Optimization

A hunter is at a point on a river bank. he wants to get his cabin, located 19 miles north and 8 miles west. He can travel 5 mph on the river bank and 2 mph on the rough rocky ground.how far upriver should he go in order to reach the cabin in the minimum

*asked on November 6, 2014* -
## Math

Find x-value of all points where function has relative extrema and find the Values of these extrema. f(x)= (x^2)/(ln(x))

*asked on October 28, 2014* -
## math

given that theta=tan^-1(4/3) find sin theta

*asked on October 19, 2014* -
## American Government

Originalists often hold that it is incorrect to use the equal protection ckause of the foyrteen anendment to strike down laws that discriminate because

*asked on May 25, 2014* -
## log[1/6](x^2+x)-log[1/6](x^2-x)=-2

Solve the equation log[1/6](x^2+x)-log[1/6](x^2-x)=-2

*asked on May 9, 2013* -
## math

what is 8/16 of 16 counters

*asked on April 29, 2013* -
## MATH.

7=2-5m; m= X+ 0.054= -1.802; x= If u can help me out or answer these for me u arr awesome and thank you.

*asked on April 22, 2013* -
## math

what are two equivalent fractions for 10/13??

*asked on January 15, 2013* -
## Science

Give the value of the 1st ionization energy of beryllium (Be). Express your answer in Joules (J/atom).

*asked on November 18, 2012* -
## Physics

A rubber ball (mass 0.30 kg) is dropped from a height of 2.0 m onto the floor. Just after bouncing from the floor, the ball has a speed of 3.9 m/s. (a) What is the magnitude and direction of the impulse imparted by the floor to the ball? MAGNITUDE: 3.05 kg

*asked on November 7, 2012* -
## Chemistry

A 15.0 mL sample of 0.250 M H2SO4 is neutralized by 20.5 mL of KOH solution. What is the molarity of the KOH solution?

*asked on October 8, 2012*