# Alexander

Newest questions and responses by Alexander-
## Science

I just need my answers checked before I turn them in! thank you!!

*asked on February 10, 2019* -
## Social Studies

Porcelain became a major trade item because it was?

*asked on January 30, 2019* -
## chemistry

A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressure of the gas is measured to be 200.kPa. The piston is now pushed down, compressing the gas, until the gas has a final volume of 3.10L. Calculate the final pressure of

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

At the beginning of the French Revolution, members of the Third Estate pledged to continue meeting and defying Louis XVI’s order until a new democratic form of government was in place. What was the name of this oath? Hippocratic Oath Scout Oath Ironclad

*asked on August 28, 2018* -
## History

What governmental practices led to the writing of the English Bill of Rights? (Select all that apply.) James II created a standing army that killed hundreds of Protestants The Crown had tortured the accused to receive confessions for crimes. The Crown

*asked on August 27, 2018* -
## History

Why did the British Parliament create the English Bill of Rights? to end the tyranny of the court system to approve a pay raise for representatives to strengthen the rights of citizens to establish rights for women i think it is C

*asked on August 27, 2018* -
## History

What factors contributed to the writing of the English Bill of Rights? William and Mary led an inquisition, killing hundreds of Catholics in England. William and Mary led an inquisition, killing hundreds of Protestants in England. James II was a Protestant

*asked on August 27, 2018* -
## History

Which accurately describes discoveries of Galileo Galilei? Galileo used a telescope to discover moons orbiting Jupiter and craters on the moon. Galileo used a barometer filled with mercury to uncover and track weather patterns. Galileo used a key and a

*asked on August 27, 2018* -
## math

How to pick lottery nos

*asked on June 7, 2018* -
## algebra

Don is 21 years older than Betty. In six year Don will be twice as old as Betty. How old is each now?

*asked on April 18, 2018* -
## Algebra

The sum of the digits of a two-digit number is 13. If the digits are reversed, the new number is 9 more than the original number. Find the original number

*asked on April 18, 2018* -
## Algebra

Ruth is twice as old as Pat. In 4 years ruth will be three times as old as Pat was 3 years ago. How old is each now?

*asked on April 18, 2018* -
## Algebra

The sum of the digits of a two-digit number is 11. If the digits are reversed, the number is increased by 45. Find the original number

*asked on April 18, 2018* -
## Algebra

Thendmonimator of a fraction is 1 more than the numerator. If the numerator is decreased by 1, the value of the resulting fraction is 3/4. What is the original fraction?

*asked on April 17, 2018* -
## Algebra

Gloria is 20 years older than Reggie.Five years ago she was five times as old as he was. How old is each now?

*asked on April 17, 2018* -
## Algebra 1

Max is 5 years older than Pauline. Next year he will be twice as old as she will be. How old is each now?

*asked on April 17, 2018* -
## Algebra

A 2 digit number is seven times the sum of its digits. The tens digit is 3 more than the units digit. what is the number?

*asked on April 17, 2018* -
## Math

Sorry for the repost, there was a mistake with the bracketing in the last one. Write (4/27)(2^((3+m)/3)+2^(m/3))^3 as a power of 2, show your work.

*asked on January 26, 2018* -
## Math

Write 4/27(2^((3+m)/3)+2^(m/3)^3 as a power of 2

*asked on January 25, 2018* -
## chemistry

The combustion of ethane produces carbon dioxide and water. If 27.6 g C2H6 are burned in the presence of excess air (O2) and 76.7 g of carbon dioxide are produced, what is the percent yield?

*asked on November 8, 2017* -
## Mathematics

6 black counters and 4 white counters in bag A. 7 black counters and 3 white counters in bag B. 5 black counters and 5 white counters in bag C. Tarek takes at random a counter from bag A and puts the counter in bag B. He then takes at random a counter from

*asked on March 30, 2017* -
## Math

The length of a rectangle is 8 feet more than its width. If the width is increased by 4 feet and the length is decreased by 5 feet, the area will remain the same. Find the dimensions of the original rectangle.

*asked on March 1, 2017* -
## Chemistry

Recall the reactions for this lab: S2O82- + 2I- → 2SO42- + I2 (slow) Reaction 1 The one that delays the solution turning blue: I2 + 2S2O32- → 2I- + S4O62- (fast) Reaction 2 b. All the S2O32 is consumed when the color change occurs. Therefore, Δ[S2O32]

*asked on February 19, 2017* -
## General Chemistry

A student mixed the following reactants, using the general procedure for the experiment: 10.0 mL of 0.10 M KI, 10.0 mL of 0.0010 M Na2S2O3, 20.0 mL of 0.040 M K2S2O8, and 10.0 mL of 0.10M HCl. It took about 75 seconds for the mixture to turn blue. a. By

*asked on February 19, 2017* -
## Science

How much work is done in moving a 25lb. load a distance of 7 feet?

*asked on February 10, 2017* -
## Math

What is 0.554 rounding to nearest tenths ones hundredths and 8.497

*asked on January 2, 2017* -
## Maths

The size of a parcel despatched through the post used to be limited by the fact that the sum of its length and girth (perimeter of the cross section) must not exceed 6 feet. What was the volume of the largest parcel of square cross- section which was

*asked on November 24, 2016* -
## Engineering

4. A rectangular enclosure is formed by using 800m of fencing. Find the greatest possible area that can be enclosed in this way and the corresponding dimensions of the rectangle.

*asked on November 24, 2016* -
## Math

Louisa has many marbles in a bag. When she counted them by twos, threes, fours, fives, sizes, sevens, eights, nines and tens there was always one left over. What was the smallest number of marbles Louisa could have had in her bag?

*asked on November 15, 2016* -
## Math

Next number in this sequence: -2, 0, 7, 22, 48?

*asked on November 10, 2016* -
## Math

What is the absolute value of the average January low temperature

*asked on September 29, 2016* -
## History

In order to protect Rome against German invaders, it was? Please don't link me to wikipedia...

*asked on June 1, 2016* -
## History

In Rome, If there were a crisis, the consuls could appoint who?

*asked on May 31, 2016* -
## History

as a result of the punic wars, rome's navy became? can someone give me something besides a wikipedia because I already read those

*asked on April 12, 2016* -
## History

Did the Punic wars help Rome expand or just Roman trade or both? Please help...

*asked on April 12, 2016* -
## Authors

In the 5th Wave by Rick Yancey, what happens to Grace? Grace used to be the Silencer Evan Walker's friend.

*asked on March 29, 2016* -
## Ps 179

People filled all the seats in the front section of the theater the front section has 6 rows with 40 seats in each row how many people are in the front section of the theater?

*asked on February 23, 2016* -
## Math

When a 3-digit number is divided by a 2-digit number, the quotient is between 5 and 6. What are the numbers using only 8 1 4 7 3?

*asked on December 26, 2015* -
## math

What's the rule for 1 & 8,2 & 13,3 & 18 and b

*asked on November 16, 2015* -
## Biology

Tay-Sachs disease is a hereditary disease that kills 1 in 360,000 individuals in the general population. Individuals homozygous for the defective allele have Tay-Sachs disease and die at an early age.Studies show that heterozygous individuals have a higher

*asked on November 13, 2015* -
## Biology

A recessive sex-linked allele (h) located on the X chromosome increases blood-clotting time, causing hemophilia. a. With the aid of a Punnet square explain how hemophilic offspring can be born to normal parents? My work: Hemophilic offspring could be born

*asked on November 13, 2015* -
## Biology 30

For ABO blood groups in the humans, the A and B genes are codminant. Both A and B are dominant over O a. Identify the possible blood types in the children of a man with blood type O and a woman with blood type AB. My work: The possible blood types that the

*asked on November 13, 2015* -
## Chemistry

how many grams of NaOH do you need to prepare a 3.00 x 10^2 mL stock solution of 2.00 M NaOH

*asked on October 7, 2015* -
## Math

Simplify the expression. 1/2(6x-8)-(5x-3) a)3x-4 b)-3x-8 c)-2x-5 d)-2x-1 Thanks!

*asked on September 18, 2015* -
## Statistics 2023

Suppose there is a 11.2% probability that a randomly selected person is aged 20 years or older and is also a jogger. In addition there is a 23.8% chance that a person is 20 years or older, female, given that he or she also jogs. What is the probability a

*asked on May 27, 2015* -
## physics

A machine with an efficiency of 100% is said to be efficient. a) If a lever has a distance of 4m from the pivot to where a load of 500N is applied and a distance of 1m from the pivot to where the load is,calculate the efficiency of the lever when height

*asked on April 14, 2015* -
## physics

A 10kilow walts electric motor is used to raise a 400kg load of bricks to a height of 60meters.The efficiency of the motor 80%.what is the input energy?

*asked on April 14, 2015* -
## Math Help

Directions: Decide whether the statements are true or false by using partial fraction decomposition. If the statement is false, show the correct way to decompose the partial fraction. 3/x^2+x-2=-1/x+2+1/x-1

*asked on March 19, 2015* -
## chemistry

2. A solution of I2 was standardized with ascorbic acid. Using a 0.1000-g sample of pure ascorbic acid, 25.32 mL of I2 were required to reach the starch end point. a) What is the molarity of the iodine solution?

*asked on January 27, 2015* -
## science

Wood fragments from the floor of a palace in Syria - Syro-Hittite period. Date: 675 ± 50 years BCE?

*asked on December 1, 2014* -
## trig

from a top of a hill

*asked on October 12, 2014* -
## coolkid1234567890

Purple Blue elementary school is 187 miles from washington dc. According to google maps it should take about 3 hours and 5miutes to get there. What is our speed. Please tell me how you did it and the answer. Thank you

*asked on October 9, 2014* -
## Math

A basket contains the following pieces of fruit: 3 apples 2 oranges, 2 bannans, 2 pears, and 5 peaches. Jonas picks a fruit at random and does not replace it. Then beth picks a fruit at random. What is the probability that jonas gets a peach and beth gets

*asked on April 21, 2014* -
## Language Arts

Which is the best way to clarify the sentence "The few arguments against pet ownership scarely need to be mentioned"? A. Most people favor pet ownership, but the author believes that the arguments against it are strong. B. Few people can provide reasons

*asked on April 17, 2014* -
## Physics

The driver of a Cadillac is traveling at a constant 60mi/hr. A police car is 20m behind the perpetrator when it too reaches 60 mi/hr and at that moment the officer floors the gas pedal. If the police car roars up to the rear of the Cadillac 2.0s later what

*asked on November 5, 2013* -
## Physics Verification

A poorly tuned Prius can accelerate from rest to a speed of 28 m/s in 20s. a) what is the average acceleration of the car? my answer is 1.4 b) Find its displacement in this time. my answer = 280 Can anyone verify this please?

*asked on October 26, 2013* -
## Math Statistics

Suppose a large-scale randomized experiment were conducted to compare two weight loss plans. At the end of the experiment, the weight loss for each subject (in pounds) was recorded. The p-value turned out to be .004, and a 99% confidence interval for the

*asked on August 2, 2013* -
## statistics

Suppose a large-scale randomized experiment were conducted to compare two weight loss plans. At the end of the experiment, the weight loss for each subject (in pounds) was recorded. The p-value turned out to be .004, and a 99% confidence interval for the

*asked on August 1, 2013* -
## statistics

Suppose a large-scale randomized experiment were conducted to compare two weight loss plans. At the end of the experiment, the weight loss for each subject (in pounds) was recorded. The p-value turned out to be .004, and a 99% confidence interval for the

*asked on July 31, 2013* -
## Math

Find the solution set of the equation {x^2+y^2=34 {x+y=2

*asked on July 16, 2013* -
## Math

Find the solution set of the equation {x^2+y^2=34 {x+y=2

*asked on July 16, 2013* -
## Math

Find the solution set of the equation {x^2+y^2=34 {x+y=2

*asked on July 16, 2013* -
## Math

Find the solution set of the equation {x^2+y^2=34 {x+y=2

*asked on July 16, 2013* -
## Maths(help me plz..!

The sides of a triangle are of lenths x*-y*, x*+y* and 2xy units respectively. Prove that the triangle is a right angled triangle

*asked on July 11, 2013* -
## Math(angle of depression) i need help please..

An observer on top of a cliff 25m above sea level views a boat on the sea at an angle of depression of 35. How far is the boat from the foot of the cliff?

*asked on July 11, 2013* -
## Maths

When the angle of elevation of the sin55 a tower cast a shadow 20m long. Find the height of the tower

*asked on July 10, 2013* -
## French check my answer

I posted this again because i really need help fast!! I am writing a postcard to my friend saying i went on a trip to the country guadeloupe, this is my letter in english and can you please check if i translated it properly into french, thanks :) Hello

*asked on May 16, 2013* -
## French

I am writing a postcard to my friend saying i went on a trip to the country guadeloupe, this is my letter in english and can you please check if i translated it properly into french, thanks :) Hello Louis. I am visiting the country Guadeloupe and I love

*asked on May 16, 2013* -
## Science 1 question SPACE

I re-posted this question because noone helped and I need help fast! I am doing a project on the planet uranus and I need a map showiong the path to my planet that i have chosen. The picture of the path must include asteroids, comets or other interesting

*asked on May 14, 2013* -
## Science space

I am doing a project on the planet uranus and I need a map showiong the path to my planet that i have chosen. The picture of the path must include asteroids, comets or other interesting objects. I am having so much trouble looking for such a picture. I

*asked on May 14, 2013* -
## Math

How do I figure out the problem below? (4-1)x ____ = 3x7 ??

*asked on March 25, 2013* -
## physics

vector R= (t^3-9t^2 + 24t + 10)jhat

*asked on March 21, 2013* -
## Physics

A 1.0cm wide diffraction grating has 1000slits. It is illuminated by light of wavelength 550nm. What are the angles of the first two diffraction orders?

*asked on March 15, 2013* -
## it

Assume you have a computer that contains 1GB of memory. It contains four memory slots. Each slot can contain 128 MB, 256 MB, 512MB, 1 GB, or 2GB memory modules. two of the slots contains a 512MB memory module. What memory chip would you buy to increse the

*asked on January 30, 2013* -
## History

1.What was the new deal's legacy? 2. new measures were taken during the new deal and what agencies were formed?

*asked on January 13, 2013* -
## ENGLISH

Can someone tell me what is Elite tourism?

*asked on November 20, 2012* -
## math square root

Indicate which of the following are true and which are false. for those that are false, change the UPPER-CASE expression to make the statement true. *Every integer is a WHOLE number * the quotient of two non zero numbers is always a RATIONAL number * the

*asked on November 20, 2012* -
## square roots

Define the square root of a given number with the use of an example.

*asked on November 20, 2012* -
## math

a man bought a number of items at a bakery totalling $10.20 ,if the sales tax was $0.51 what is the tax rate?

*asked on November 14, 2012* -
## maths

if the number of daily customers served by a restaurant increased from 160 to 208,what was the percent increase?

*asked on November 14, 2012* -
## maths

After one year ,a writer had to pay $589 in interest on a $6,200 loan.what is the interest rate?

*asked on November 14, 2012* -
## Science

Is this correct? In pea plants, the allele for green pods is G. The allele for yellow pods is g. In the offspring 27 (75 percent) had green pods and 9 (25 percent) had yellow pods. What are the parents genotypes? How do you know? The parents genotypes are

*asked on November 10, 2012* -
## history

difference between iroquois clan mother and iroquois headwoman

*asked on November 8, 2012* -
## Maths

A car showroom had 10y cars, 20y motorcycles and 18 vans. In a particular month, 4y cars , 3y motorcycles and 15 vans were sold. a.) Find the total number of wheels on the remaining vehicles in terms of x. b.) If y=21, how many wheels were there? An indoor

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

A car travels at 107 km/h on a level road in the positive direction of an x axis. Each tire has a diameter of 74.0 cm. Relative to a woman riding in the car and in unit-vector notation, what are the velocity at the (a) center, (b) top, and (c) bottom of

*asked on October 31, 2012* -
## Physics

2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.

*asked on October 23, 2012* -
## Geography

Is Lima, the capital of Peru, east or west of the 80 degrees west line of longitude? Is this correct? East?

*asked on September 22, 2012* -
## Geography

Is this correct? What are the three continents with the largest land areas in the world? Asia Africa and north america

*asked on September 22, 2012* -
## Math

Jimmy measured four pieces of wood . Their measures are 4.2ft , 9/2 ft, 4.2ft, and 4 2/9 . What is the length of the shortest piece ?

*asked on September 11, 2012* -
## Stats

Can someone please explain how to find the frequency from: Lower limit:230,240,250 upper limit:239,249,259 Mid Value:234.5,244.5,254.5

*asked on September 3, 2012* -
## english

which one of the following sentences contains a collective noun? A. the quality of mercy is not strained. B. wo among you is a butcher, a baker, or a candlestick maker? C. Listen, my children, and you shall hear. D. the legislature met in secret session.

*asked on July 17, 2012* -
## Statistics

A professor receives, on average, 8 emails from students on the day before an online quiz. If the distribution of the calls is Poisson, what is the chance that he received at least 6 and at most 10 emails on such a day?

*asked on June 17, 2012* -
## Ap Phyics

Figure shows an overhead view of a 0.024 kg lemon half and two of the three horizontal forces that act on it as it is on a frictionless table. Force F1 has a magnitude of 6 N and is at ¥è1 = 25¢ª. Force F2 has a magnitude of 10 N and is at ¥è2 =

*asked on April 21, 2012* -
## reading

In the book, "The face on the milk carton", what color is Janie's shirt?

*asked on March 17, 2012* -
## health class

how do you convince someone to stop smoking. Also,how do you relieve stress without smoking or eating? Please help.

*asked on March 16, 2012* -
## Cooking Class

Can you help me find a link on how to make zeppoles (ex; step 1 then step 2) Please.

*asked on March 13, 2012* -
## physics

The drawing shows a skateboarder moving at 5.34 m/s along a horizontal section of a track that is slanted upward by 47.7 ° above the horizontal at its end, which is 0.795 m above the ground. When she leaves the track, she follows the characteristic path

*asked on February 26, 2012* -
## precalc/trig

Solve the Logarithmic equation algebraically. Give an Exact Answer and an approximation for x to four decimal places. 20 log(2x+2)=45

*asked on December 5, 2011* -
## trig

Find the exact value of the trigonometric function given that sin u = − 8/17 and cos v = − 3/5. (Both u and v are in Quadrant III.) cot(v − u)

*asked on November 20, 2011* -
## CHEMISTRY

Strong base is dissolved in 675 ml of 0.200 m weak acid (ka=3.25x10^-5) to make a buffer with a ph of 3.95. Assume that the volume remains constant when the base is added. HA + OH ---> H2O + A^- calculate the pka value of the acid and determine the number

*asked on November 10, 2011*

## Pages

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