# Dylan

Popular questions and responses by Dylan-
## geography

How does plate movement create mountains? A.The pressure created by moving plates forces magma up through Earth's crust, forming mountains. B.When two plates push against each other, the pressure makes the crust bend to form mountains. C.When plates slide

*asked on August 15, 2019* -
## Science

1.) Why is it important to have a quiet study space? It is easier to concentrate in a quiet space, and concentration is needed to learn. * It is easier to leave all your study material in a quiet study space so you can find it. A quiet study space prevents

*asked on October 8, 2016* -
## Chemistry

Why are standard electrode potentials affected by the nature of the electrode?

*asked on July 25, 2020* -
## math

At the start of 2015, Barry's house was worth £270000. The value of his house increased by 3% every year. Work out the value of his house at the start of 2020.

*asked on April 13, 2020* -
## Chemistry

Reduction Reaction E0 (V) Cadmium (Cd) Cd2+ + 2e– → Cd -0.40 Silver (Ag) Ag+ + e– → Ag +0.80 If the standard cell potential of a cadmium-silver cell is 1.20 V and the reduction potential of Cd is –0.40 V, what is the oxidation potential of Ag?

*asked on July 25, 2020* -
## Chemistry

MnO4– + SO32– + H2O → MnO2 + SO42– + OH– How many molecules of water (H2O) are required to balance the equation?

*asked on July 25, 2020* -
## CHEMISTRY

which of the following represent a buffer system? A.) NaOH and NaBr B.) HF and NaF C.) HC2H3O2 and C12H22O11 D.) HCl and KOH

*asked on March 3, 2012* -
## Chemistry

What is the oxidized substance in the following reaction? Fe + 2HCl → FeCl2 + H2

*asked on July 6, 2016* -
## math

Replace each letter with a number to make the problem correct. Identicle letters are placed with identicle numbers. PARTS x 4 = STRAP

*asked on January 31, 2008* -
## Health

The functional unit of the nervous system is.. A. The Neuron B. The Brain*** C. A reflex D. The cerebrum

*asked on April 4, 2016* -
## Math

Find the measure of each angle to the nearest tenth of a degree. sin A=0.7245

*asked on February 6, 2014* -
## Science

8. The balanced equation P4 (s) + 6H2 (g) --> 4PH3 tells us that 2 mol H2 a. reacts with 1 mol 4 b. produces 4 mol PH3 c. cannot react with phosphorus d. produces 2 mol PH3 e. reacts with 2 mol P4 idk y i cant seem to get the answer from the choices above?

*asked on January 18, 2011* -
## English

26. identify the degree comparison for the underlined word the most original idea was suited by a pair of tenth graders (Most original is underlined) A. Positive B. comparative c. superlative d. none of the above I think it is c identify the degree of

*asked on May 19, 2016* -
## US History

Read the following quote from Thomas Jefferson: "A wise and frugal government, which shall leave men free to regulate their own pursuits of industry and improvement, and shall not take from the mouth of labor the bread it has earned—this is the sum of

*asked on May 22, 2018* -
## College Physics

On planet Z, the standard unit of length is the foose. Ann the Astronaut is 5.90 feet tall on earth. She lands on planet Z and is measured to be 94 foosi tall. Her partner Rachael is 88 foosi tall. How tall is Rachael on Earth?

*asked on February 4, 2012* -
## Chemistry

does BaCl2+Pb(NO3)2 form a percipitate

*asked on December 27, 2009* -
## math

Terry is an up-and-coming florist who specializes in weddings. He uses 5 roses, 3 daisies, and 4 bundles of green filler to make one bouquet. If r is the cost of a rose, d is the cost of a daisy, and f is the cost of a bundle of green filler, which

*asked on June 13, 2019* -
## Algebra

Image of one smaller cube labeled with fish food with dimensions of one-quarter feet on each side. Larger cube labeled shipping box with dimensions of length 3 and three-fourths feet; width of 3 feet; height of 3 and one-quarter feet. Determine how many

*asked on September 27, 2017* -
## Physics

A disk at rest experiences a constant angular acceleration for t = 85 s, at the end of which it is spinning with a frequency of f = 45 rpm. Please answer the following questions. A)Write an expression for the magnitude of the angular velocity of the disk

*asked on April 26, 2014* -
## English

Which of the following sentences from "Five Hours to Simla" best supports the story's theme about the clash between modernization and traditional life? A:"After the first cacophony of screeching brakes and grinding gears, there followed the comparatively

*asked on May 17, 2016* -
## Math 11

From a weather balloon high in the air, the angle of depression of a ground marker is 27.8 degrees. If the balloon rises 345 m straight up the angle of depression from this higher point is 46.2 degrees. How high above the ground is the balloon?

*asked on June 8, 2014* -
## CALCULUS

For some positive constant C, a patient's temperature change, T , due to a dose,D , of a drug is given by T=(c/2-D/3)D^2 What dosage maximizes the temperature change The sensitivity of the body to the drug is defined as . What dosage maximizes sensitivity?

*asked on March 6, 2013* -
## Math

A running tap dispenses 0.15 gallons of water every second. How many pints of water is dispensed after 20 seconds? Please show me how to get the answer.

*asked on October 24, 2017* -
## Science

Which of the following would best explain why a species of wildflower native to Switzerland is observed growing in the wild in Montana? Wind dispersed seeds of the wildflower.* Water dispersed seeds of the wildflower. A human brought and dispersed the

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

How many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?

*asked on March 29, 2016* -
## chemistry (Bohr model)

The second ionization energy of He is almost exactly four times the ionization energy of H, and the third ionization energy of Li is almost exactly nine times the ionization energy of H: IE (MJ mol-1) H(g) --> H +(g) + e- (1.3120) He+(g) --> He2+(g) + e-

*asked on February 9, 2015* -
## Algebra

How many real number solutions does the equation have? 0 = -7x^2 + 6x + 3 one solution two solutions** no solution How many real number solutions does the equation have? 0 = 2x^2 - 20x + 50 one solution two solutions no solution**

*asked on April 12, 2018* -
## Social Studies

Which of the following best describes how the Intolerable Acts affected the American colonies? A.) The acts caused the colonies to set up their own militia to serve in times of emergency. B.) The acts caused the colonies to call for the First Continental

*asked on October 12, 2016* -
## Calculus

Find constants a and b in the function f(x)=axe^(bX) such that f(1/8)=1 and the function has a local maximum at x=1/8.

*asked on March 6, 2013* -
## Chemistry

consider the following reaction: 2CH3OH(g) yields 2CH4(g) + O2(g) change in enthalpy= 252.8kJ Calculate the amount of heat transferred when 26.0 g of {\rm CH_3OH} (g) is decomposed by this reaction at constant pressure.

*asked on March 5, 2012* -
## science

a piece of wood that measures 3.0 cm by 4.0 cm by 5.0 cm has a mass of 90.og. what is the density of the wood? would the piece of wood float in water? remember the density of water is 1.00g/ml

*asked on June 21, 2011* -
## Math

Given the following values, which point would be considered an outlier? x - 1,2,3,4,5,6,7,8,9 y - 1.2, 4.3, 2.8, 4.1, 5.2, 6, 7.1, 7.9, 9.4. A.) (1, 1.2) B.) (2, 4.3) C.) (4, 4.1) D.) (6,6) * Can someone please check my answer?

*asked on April 28, 2017* -
## Math

If you place $1000 in a savings account with an interest rate of 5.25% a month how much should you earn an interest at the end of the month?

*asked on March 2, 2015* -
## Inorganic Chemistry

Use Slater's rules to calculate the effective nuclear charge, Z* or Zeff, for a 4f electron in Eu, Tb, and Dy.

*asked on February 2, 2015* -
## C# Programming

There are three seating categories at an athletic stadium. For a baseball game, Class A seats cost $15 dollars each, Class B seats cost $12 each, and Class C seats cost $9 each. Create an application that allows the user to enter the number of tickets sold

*asked on September 2, 2012* -
## math #2

Look at the pattern of shaded numbers. use place value to describe how the number change. 501 is shaded,502,503,504,505,506,507,508,509,510,511,512,513 is shaded,514,515,516,517,518,519,520,521,522,523,524,525 is

*asked on April 26, 2010* -
## Trigonometry

A bridge across a valley is 150 m in length. The valley walls make angles of 60° and 54° with the bridge that spans it, as shown. How deep is the valley, to the nearest metre?

*asked on June 13, 2019* -
## Algebra

Seven times the smaller of 2 numbers plus 9 times the larger is 178. When 10 times the larger is increased by 11 times the smaller the result is 230. Find the numbers.

*asked on February 21, 2019* -
## Algebra

Evaluate this expression for a= -2 2a to the 3rd power times (2a) to the 3rd power

*asked on April 24, 2018* -
## Algebra

I am thinking of two numbers. The first number added to the second number is 5. Twice the first number added to twice the second number is 10. What are the numbers. ????? 1&4

*asked on April 23, 2018* -
## English

Choose the answer that best matches the word in italics. One way to save money on electricity is to replace incandescent bulbs with compact fluorescent (CF) light bulbs. A.) outside visible spectrum B.) creating light by radiating heat* C.) emitting light

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

Leila will rent a car for the weekend. She can choose one of two plans. The first plan has no initial fee but costs $0.70 per mile driven. The second plan has an initial fee of $65 and costs an additional $0.50 per mile driven. How many miles would Leila

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

10cents a minute and they talk 10 1\2 hours how many dollars would it be

*asked on March 7, 2017* -
## Chemistry

Determine the pH of a solution made by diluting 25mL of 6.0 M HCl until the final volume of the solution is 1.75 L

*asked on April 21, 2016* -
## indian ridian ridge

Simplify the given expression to rational exponent form and justify each step by identifying the properties of rational exponents used. All work must be shown. 1/cubed root of x to -6 exponent

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

Find the measure of each angle to the nearest tenth of a degree. sin A=0.7245

*asked on February 6, 2014* -
## math

The number of students at a university is 1320, and the number increases by 8% each year. Write an exponential function to model this situation. Then find about how many students there will be in 5 years.

*asked on June 9, 2013* -
## precalculus

Find an equation for the parabola that has its vertex at the origin and directrix x=-9. If your answer is in the form x^2=Ay, then input here: A= if your answer is in the form y^2=Ax, then input here: A= .

*asked on May 3, 2013* -
## Math

What is the three digit mystery number? Clues: It is less than 300, the tens digit is 4 more than the hundreds digit, the sum of the digits is 9, the hundreds digit is 2 less than the ones digit.

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

Find the balance in an account that has $700 invested at 5.5% for 4 years compounded semi-annually.

*asked on July 9, 2012* -
## Chemistry 1201

An unknown compound contains only carbon, hydrogen, and oxygen (C?H?O?). Combustion of 6.50 of this compound produced 9.53 g of carbon dioxide and 3.90 g of water. 1) How many moles of Carbon? 2) How many moles of Hydrogen?

*asked on March 28, 2012* -
## calculus

F(x)=e^(-3x/2) Let R be the region between the graph of f and the x-axis on the interval 0 to 1 . Find the volume V of the solid of revolution generated by revolving R about the x-axis. Give both exact (symbolic) and approximate (numeric) answers.

*asked on November 28, 2011* -
## Math

if four friends share equally a 48 ounch bag of popcorn what fraction would each one get?

*asked on November 8, 2010* -
## AP CHEM

HIO3 + FeI2 + HCl --> FeCl3 + ICl (in acidic solution) Show and label the two balanced half-reactions (oxidation and reduction). Add H2Os, H+s or OH-s as needed.

*asked on October 23, 2010* -
## math

Calculate the area of each composite figure.round to the nearest square unit, if necessary. a)15mm, 8mm, 10mm 30mm

*asked on January 26, 2010* -
## math

The equation 9c-5f+160=0 describes the relationship between temperature, C, in degrees Celsius, and temperature, F, in degrees Fahrenheit. b)graph this relation.

*asked on January 24, 2010* -
## Modern World Studies

How does climate affect the ways that Latin Americans live? Climate only affects the success of crops. Climate does not affect the way people live. Climate affects the variety and success of crops and they type of clothing and shelter needed to survive.

*asked on April 30, 2019* -
## Algebra

pete has twice as many $2 bills as $5bills. together they total $ 153. how many $5 bills does he have.

*asked on February 21, 2019* -
## history

What group was in the highest caste? A. Dalits B. rulers and warriors C. priests D. landowners and merchants

*asked on October 24, 2018* -
## History

Which of the following best explains the Dred Scott case and how it affected the debate about slavery? Dred Scott was a slave owner who learned his slave was living as a free man in a Northern state. He argued that the slave should be returned to him to

*asked on May 22, 2018* -
## Calculus

A function has f’’(x) = 10 and has f’(4) = 0 and f(2) = 4. Find f(x)

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

A carpenter is putting a skylight in a roof. If the roof measures 10x + 9 by 7x + 7 and the skylight measures x + 5 by 3x + 3, what is the area of the remaining roof after the skylight is built? A.) 67x^2 + 115x + 48** B.) 73x^2 + 151x + 78 C.) 70x^2 +

*asked on March 22, 2018* -
## Algebra 1

Determine if the number is written in scientific notation. 4.8 * 100^7 A.) No, it is not written as a number times a power of 10.* B.) Yes, the number is written in scientific notation. C.) No, the first factor is not a number between 1 and 10. 5.1 * 10^-8

*asked on February 14, 2018* -
## Algebra

I need to determine if they are open, infinite, or none. y = -1/4x + 1 8y = -2x + 8 Open Infinite None* y = 6x + 2 3y = 18x + 12 Open Infinite* None -2y = -x + 6 y = 1/2x - 3 Open Infinite None* y = 5x - 6 3y = 15x - 12 Open Infinite None*

*asked on January 10, 2018* -
## Math

The coordinates of a point on a coordinate grid are (−3, 7). The point is reflected across the x-axis to obtain a new point. The coordinates of the reflected point are A. (−3, −7) B. (3, −7) C. (−3, 7) D. (3, 7) I think the answer is A

*asked on November 28, 2017* -
## Biology

A chemical known as a fertex affects external fertilization of sea urchin eggs. An experiment was set up using three tanks to investigate the effect of fertex. Each tank had a different concentration of fertex: 1%, 2%, and 3%. Ten sea urchin eggs and 2mL

*asked on September 22, 2017* -
## english

how to diagram this sentence The man in the back row brought his friends with him.

*asked on January 6, 2017* -
## Geomentry

What is the fraction form of .5526316

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

For the following reaction, identify the substance being oxidized and reduced CH4 + 2 O2 = CO2 + 2 H2O

*asked on July 6, 2016* -
## History

1. Abraham Lincoln cause four states to join the confederacy by _____ A. Declaring War B. Firing on Fort Sumter C. Emancipating the enslaved people D. Calling for troops*** 2. What Confederate capital was only about 100 miles from Washington D.C.? A.

*asked on April 8, 2016* -
## U.S. History

1. The admission of Missouri as a slave state was controversial in the Senate because... A. The senate was pro-slavery B. It would create sectionalism*** C. It would upset the balance D. The senate was anti-slavery

*asked on April 6, 2016* -
## geometry

If a rectangular prism has a surface area of 198 square feet, a height of 6 feet and a lateral surface area of 144 square feet what is the base area of the prism? What is the volume of the prism?

*asked on January 15, 2016* -
## Physics

Randy throws a tennis ball horizonally to hit a wall 20 m away. If the ball hits the wall 1.5s after it is thrown, what is the horizontal component of the balls velocity?

*asked on November 11, 2015* -
## Math

I don't understand how to solve this equation -2+5x-7=3x-9+2x could you help me out?

*asked on October 9, 2015* -
## geometry

there is a rectangular parking lot with a length of 2x and a width of x what is the ratio of the perimeter of the parking lot to the parking lot, in terms of x?

*asked on August 4, 2015* -
## math

If you place $2,000.00 in a savings account with an interest rate of 4.5%/month versus an account with a rate of 3.75%/month, how much more interest could you earn in that month using the first account?

*asked on March 2, 2015* -
## physics

A particle carrying a charge of 6.0uC is located at the origin of a rectangle coordinate system, and a particle carrying a charge of 4.0uC is located at (0,5.0m). What are the magnitude and direction of the electric field at the positions (5.0m,0),

*asked on February 5, 2015* -
## Organic Chemistry

If you have 5.6 mL of 95% hexanes to 5% ethyl acetate, how many mL of 85% hexanes to 15% ethyl acetate can you make? Assume unlimited supply of pure ethyl acetate.

*asked on February 2, 2015* -
## Column Chromatography

If you have 5.6 mL of 95% hexanes to 5% ethyl acetate, how many mL of 85% hexanes to 15% ethyl acetate can you make? Assume unlimited supply of pure ethyl acetate.

*asked on February 2, 2015* -
## English composition

I'm writing a paper to explain a concept of the bevel Ella Minnow Pea. I've come up with a thesis statement and my teacher has approved it, but I'm just stuck as to what I'm writing about. The assignment instructions asks "How does Dunn legitimize his

*asked on October 26, 2014* -
## English - grammar

How to decide how to end a sentence with he/him or she/her? Ex. We can not eat before he? or him?

*asked on September 30, 2014* -
## Math 11

From a window in a building 20 m above ground the angle of depression of the top of a statue across the street is 30 degrees, and the angle of depression of the base of the statue is 34. How tall is the statue?

*asked on June 8, 2014* -
## cook

I want to know wat all the weighing equipment is

*asked on February 4, 2014* -
## statistics

Your mail-order company advertises that it ships 95% of its orders within three working days. You select an SRS of 100 of the 5000 orders received in the past week for an audit. The audit reveals that only 91 of these orders were shipped on time. A) What

*asked on April 24, 2013* -
## precalc

(cos3x)^4+(sin3x)^4=cos(g(x)) find g(x)

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

A boat is pulled through a canal by horses walking parallel to the canal and exerting a force of 1000 N on a tow rope 40 meters long. If the distance from the boat to the horse track is 15 meters, what is the magnitude of the effective component pulling

*asked on March 5, 2013* -
## math

look at the table of 9s facts. Is there another number pattern in the multiples of 9? Explain

*asked on December 12, 2012* -
## math

A man is six feet tall and casts a shadow 4 feet long. At the same time a child is 4.5 feet tall, how long is her shadow?

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

A ferry is crossing a river. The ferry is headed due north with a speed of 1.1 m/s relative to the water and the river’s velocity is 4.2 m/s to the east.Find the direction in which the ferry is moving (measured from due east, with coun- terclockwise

*asked on October 23, 2012* -
## algebra 1

find the length of the following segment created by these pairs of endpoints: (0,1), (6,6)

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

consider the following reaction: 2CH3OH(g) yields 2CH4(g) + O2(g) change in enthalpy= 252.8kJ How many kilojoules of heat are released when 38.4 g of CH_4 g) reacts completely with O2 (g) to form CH3OH (g) at constant pressure?

*asked on March 5, 2012* -
## science

on what website can i find info on things made of the element hafnium:a picture,how it's made, and why it is made with hafnium.

*asked on February 19, 2012* -
## math

if a hexagon has two right angles, what is the sum of the measures of the remaining angles?

*asked on January 12, 2012* -
## Physics

A crow is flying horizontally with a constant speed of 2.50 m/s when it releases a clam from its beak. The clam lands on the rocky beach 2.20 s later. Consider the moment just before the clam lands. (Neglect air resistance.) A) What is its horizontal

*asked on October 24, 2011* -
## chemistry

N2 (g) + 3H2 (g) → 2NH3 (g)ΔH = -92.6 Calculate ΔH (in kJ) for the decomposition of 30.5 g NH3 (g) into N2 (g) and H2 (g)

*asked on October 12, 2011* -
## Math

Find a number whose square root is 24 more than 5 times the number. How do I set up this problem? Thank you for any help!

*asked on October 23, 2010* -
## algebra I

Find a number whose square root is 24 more than 5 times the number. How do I set up this problem?

*asked on October 23, 2010* -
## Science

The portion of the nervous system that controls involuntary activities is a subdivision of the ____ nervous system. A. sympathetic B. central C. peripheral D. parasympathetic I think it's either B or C right?

*asked on September 1, 2010* -
## math

Look at the pattern of shaded numbers. use place value to describe how the number change.

*asked on April 26, 2010* -
## English

Over the summer I read several different books, but the two that stuck out the most to me was Salt A World History by Mark Kurlansky and SUB 4:00 by Chris Lear. When I am asked which author was more successful in creating a good piece of literature I would

*asked on July 17, 2008*