# Shadow

Most popular questions and responses by Shadow-
## math

If a number is not a rational number, then it is _____. (1 point) a integer a rational number a whole number

*asked on September 26, 2017* -
## social studies

How did Horace Mann contribute to the reform in education? A. His development of books with raised letters aided in the education of the blind B. His educational philosophy led to a new approach in educating the deaf C. His radical call for classroom

*asked on November 2, 2017* -
## math

which solid does the net form? hexagonal prism hexagonal pyramid rectangular prism rectangular pyramid

*asked on December 5, 2017* -
## social studies

why does the cartoon from the bank war 1832 portray president jackson as a king? A many people felt he was motivated by his own wealth B some felt he had used his power inappropriately in vetoing legislation to recharter the bank C some felt there remained

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

Hydrogen gas can produced by the reaction between metallic aluminum and aqueous hydrochloric acid 2Al+6HCl----2AlCl3+3H2 Hydrogen gas produced by this reaction is typically collected via water displacement, during which time the hydrogen gas becomes

*asked on November 19, 2013* -
## L.A

I'm trying to find the theme of the book I'm reading, but I don't really know what exactly is a theme, could anyone give me an idea of what a "theme" of a story is? -Is the theme = What is the author trying to teach us? Or is it the central message of the

*asked on October 20, 2010* -
## social studies

Which of the following best describes the similarity between emerson's and thoreau's central beliefs? A.They both lectured on the importance of the inner light B.they both believed the human spirit was reflected in nature C.they both considered the rise of

*asked on November 2, 2017* -
## math

sara needs to cover the top and sides of the cylinder below About how many square inches of paper will Sara need? 528 in. 415 in. 207 in. 179 in.

*asked on December 5, 2017* -
## social studies

what is this drawing of a camp meeting likely illustrating? A. the growth of reform movements in the united states B. the large influence revivals had on americans C. the rise in the formation of women's trade unions D. the increase in support of american

*asked on November 2, 2017* -
## chem

Calculate the amount of heat required to convert 17.5g of ice at -33.5∘C to steam at 100.0∘C.

*asked on April 23, 2014* -
## science

Earth's energy sources include both renewable and nonrenewable resources. name at least three sources of energy that could be used in your house. then describe the ideal energy source for generating most of your home's electricity, and explain why you

*asked on February 27, 2017* -
## Chemistry

If 3.21 mol of a gas occupies 56.2 L at 44*C and 793 torr, 5.29 mol of this gas occupies __________ L under these conditions. . -How will I solve this using PV= nRT? I tried using PV= nRT. By just plugging in the value and got 131 but the answer is around

*asked on April 1, 2013* -
## social studies

Which of the following laws would the free-soil party have supported? cottonocracy slave codes wilmot proviso fugitive slave act ms sue i don't want a link

*asked on November 12, 2017* -
## social studies

We hold these truths to be self-evident: that all men and women are created equal; that they are endowed by their creator with certain unalienable rights; that among these are life, liberty, and the pursuit of happiness what founding documents is being

*asked on November 2, 2017* -
## social studies

Why did Jefferson oppose Hamilton’s plan for creating a national bank? Select all that apply. (2 points) He argued that Congress did not have the constitutional power to establish it. He felt that there would be no way to effectively run a national

*asked on October 3, 2017* -
## Chemistry

The problem ask what is the mass of iron(iii) chloride contains 2.35 x 10^23 chloride ions. I understand the molar mass is 162.20 g/mol. - 2.35 x 10^23 chloride ions would be around 0.39 moles. - The work that my teacher gave me is 0.39 moles * (1 mol

*asked on January 29, 2013* -
## math

Which of these nonterminating decimals can be converted into a rational number A 0.48907542 repeating B 0.02020202 repeating C 0.92589542 repeating D 0.10203040 repeating

*asked on September 26, 2017* -
## Social Studies

Why did the United States become involved in Mexico's civil war? Select all that apply. 1)Relations had weakened between the United States and the new government. 2)Mexico was unable to end the war without U.S. intervention. 3)The United States provided

*asked on January 31, 2018* -
## chemistry

Question: When a pink aqueous solution of potassium permanganate, faintly acidified with dilute sulfuric acid was treated with 10% aq. hydrogen peroxide, the reaction took place with the evolution of gas bubbles, and the pink solution was turned colorless.

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

Solve the following proportion x/3 = 8/9 A 18 B 27 C 2 D 24

*asked on October 16, 2017* -
## Chemistry

How many moles of ion are in the following? A. 0.0200 g AgNO3 - Could someone give me the step to solve such problems? Thanks

*asked on January 29, 2013* -
## Chemistry

Determine the volume of methane CH4 gas needed to react completely with 0.660 L of 02 to form methanol CH3OH I'm confused because I'm sure CH4 + O2 don't give you CH3OH. Thanks

*asked on March 29, 2013* -
## social studies

Which factor best accounts for the price change in the Model T automobile? A. Low deman B. Orginized labor C. Mass production D. wartime inflation

*asked on December 16, 2017* -
## social studies

How did horace mann feel that reforming the american educational system was important? A. it would help people attain better jobs B. it would help in the fight to end slavery C. it would help in the fight for gender equality D. it would help people become

*asked on November 1, 2017* -
## Social Studies

1.Why is " elastic clause' an appropriate name for Clause 18 of Section 8 of Article l? 2.Think about what it mean to "express" something. Which powers - delegated or implied - could also be referred to as expressed powers? Why? 1.Elastic Clause is the

*asked on April 11, 2010* -
## Chemistry

Find the enthalpy for : 4Fe + 3O2 = 2Fe2O3 I got the following informations: Fe + 3H2O = Fe(OH)3 + 3/2H2 - Enthalpy is 160.9 kj H2 + 1/2O2 = H2O - Enthalpy is -285.8 kj Fe2O3 + 3H2O = 2Fe(OH)3 - Enthalpy is 288.6 I try using Hess Law but cannot solve it.

*asked on May 13, 2013* -
## social studies

which of the following statements best reflects the rights of citizens that are protected by the bill of rights

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

What is the surface area of the given figure. A.) 1,008 cm B.) 1,728 cm C.) 1,392 cm D.) 1,216 cm

*asked on December 5, 2017* -
## social studies

Which of the following statements best summarizes Washington’s viewpoint on American foreign policy? (1 point) The United States can take advantage of Europe’s ambition. The United States should limit interaction with Europe to commerce, or trade.

*asked on October 3, 2017* -
## Algebra

A gardener is putting a wire fence along the edge of his garden to keep animals from eating his plants. -If he has 20 meters of fence, what is the largest rectangular area he can enclose? -What quadratic function represents the area of the garden? Thanks

*asked on December 1, 2011* -
## Physics

A playground is on the flat roof of a city school, hb = 5.70 m above the street below (see figure). The vertical wall of the building is h = 6.90 m high, to form a 1.2-m-high railing around the playground. A ball has fallen to the street below, and a

*asked on December 14, 2018* -
## Precaculus

tan4.7 * cot4.7 I understand tan4.7 = 1/ cot 4.7 but I'm stuck after this thanks.

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

The volume in cubic feet of a Cd holder can be expressed as V(x)=-x^3-x^2+6x, the depth is 2-x , factor the polynomial to find linear expression for the height and the width. - Do I just factor the -x^3-x^2+6x? It because I know the volume is LWH, so don't

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

Water has an extremely high boiling point compared to other compounds of similar molar mass because of ? Hydrogen Bond Adhesive force Covalent bonding Dispersion Forces I believe the answer is A since hydrogen bond is a strong bond and thus require most

*asked on March 10, 2013* -
## Language

I have to write a essay and I don't know how to lengthen the rough draft could someone please give me tips? Here's my rough draft Comparison-and-Contrast Essay The Story-Teller and The Drummer Boy of Shiloh Comparison and Contrast means to tell the

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

A rectangular piece of fabric measures 37 by 45 inches. A triangular scarf with a height of 21 inches and a base of 25 inches is cut from the fabric. How much fabric is left over?

*asked on February 17, 2016* -
## Math

A 64 inch long board is divided into lengths in the ratio 2:3. What are the two lengths into which the board is divided? Thanks

*asked on March 7, 2011* -
## Math

Kent invested $5,000 in a retirement plan.He allocated X dollars of the money to a bond account that earns 4% interest per year and the rest to a traditional account that earn 5% interest per year. 1.Write an expression that represents the amount of money

*asked on May 11, 2010* -
## Precalculus

How do i solve this problem? Find the polar form of the complex number where the argument satisfies 0≤θ≤2π. 0+3i

*asked on January 26, 2019* -
## math

Solve the following proportion x/3 = 6/9 A 18 B 27 C 2 D 24

*asked on October 16, 2017* -
## Math

I need helppp D: ---------------- Simplify the expression -4-5(x+8) *-5x-44 *-5x+36 *-x-8 *-20x+8 5x+6(x-2)-8(x-3) *19x+36 *19x+12 *3x-36 *3x-12 x+8

*asked on October 3, 2017* -
## Math

A standard deck of playing cards contains 52 cards in four suits of 13 cards each. Two suits are red and two suits are black. Find each probability.Assume the first card is replaced before the second card is drawn. 1.P(black,queen) 2.P(jack,queen) How

*asked on February 10, 2010* -
## JAVA

Using only one "System.out.print" command, print the following quote. Make sure to include the quote marks (") in your output. "I do not fear computers. I fear the lack of them." Isaac Asimov

*asked on December 14, 2018* -
## chemistry

In the following reaction, how many liters of carbon dioxide, CO2, measured at STP, would be produced from the decomposition of 143 g of magnesium carbonate, MgCO3? MgCO3----MgO+CO2

*asked on November 19, 2013* -
## Chemistry

A mole of a pure substance contains 6.02x10^23 atoms. Alway true, sometime true or never true? -I was thinking sometime true since a pure substance can be like H2O but H2O have 3 "atoms" (Is this what you call individual part of H2O?). Each "atoms" have

*asked on February 5, 2013* -
## educational technology

5-7 sentences about the progressive era

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

Could anyone explain to be what these term mean in math? I try googling them but can't find the answer. Thanks 1.Opposite of a Difference 2.Opposite of a Sum 3.Opposite of an Opposite

*asked on August 28, 2011* -
## Chemistry

I need to write a balance equation of the decomposition of aluminum carbonate. I know the starting "reactant" is Al2(CO3)3 but would the "product' be 2Al + 3(CO3) ? Thanks

*asked on February 18, 2013* -
## Chemistry

4Fe + 3O2 = 2Fe2O3 So in math book it say " You can interpret this equation in terms of representative particles by saying that four atoms of iron react with three molecules of oxygen to produce two formula unit of iron(iii) oxide" Why it say that there

*asked on February 24, 2013* -
## Chemistry

If 25 grams of copper(II) sulfate pentahydrate were heated until all water was removed, how much residue would remain?- Could someone help me understand this question? I don't understand it at all. Thanks

*asked on February 3, 2013* -
## Shadow

Write an equation to solve each problem. The sides of one cube are twice as long as the sides of a second cube. What is the side length of each cube if the total volume of the cubes is 72 cm^3? Would it be, 3x+6x=72? Thanks

*asked on September 1, 2011* -
## Geometry

To build a fence, Jim positioned the fence posts and then placed a 2 x 4 board at an angle between the fence posts. As he placed each picket, he measured the angle that the picket made with the 2 x 4. Why does this ensure that the picket will be parallel?

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

The measure of two complementary angles are 6y+3 and 4y-13. Find the measures of the angles. ( In this question, are they saying 2 different complementary angle? or two angle that make up a complementary? )

*asked on December 31, 2010* -
## chemistry

In the ground state of an atom of silver (Ag), how many electrons will there be with the quantum number l = 1?

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

Let say Pb(NO3)2 combine with FeCl3, would this yield PbCl + Fe(NO2)3? Thanks

*asked on January 27, 2013* -
## Business Class

In our business class, we have to come up with a business and make it different from other competitor. My business is desktop publishing ( Creating brochures , advertisement, newspaper, and business card) and I can't think of way to make the business

*asked on September 20, 2011* -
## Math

Strong winds called the prevailing westerlies blow from west to east in a belt from 40 degree to 60 degree latitude in both Northern and Southern Hemisphere. 1.Write an inequality to represent the latitudes where the prevailing westerlies are not located.

*asked on March 18, 2010* -
## Algebra

For which value of b would make the equation 3|x-2|=bx-6 have infinitely many solutions? How would I find the values? The choices are -6,-3,3,6.

*asked on October 23, 2011* -
## Math

There is something wrong with this definition for a pair of vertical angles: “If AB and CD intersect at point P,then APC and BPD are a pair of vertical angles.” Sketch a counterexample to show why it is not correct. Can you add a phrase to correct it?

*asked on September 9, 2010* -
## Math

Rounds each number to four significant figures. ( Could someone check if I'm right? Thanks) a. 431801 = 4318 b. 10235.0 = 1024 c. 1.0348 = 1.035 d. 0.0004384010 = 0.0004384 e. 0.00078100 = 0.0007810 f. 0.0098641 = 0.009864

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

I'm writing an essay on the topic " The most memorable moment in your life" and I was wondering if you guy could give me suggestions on how I could start my introduction. Thanks ( The most memorable moment I chose was the first day of my summer vacation)

*asked on October 3, 2010* -
## math

find the length of the hypotenuse of a triangle with legs of 5 ft and 12 ft? 11 ft 13 ft 17 ft 60 ft

*asked on September 26, 2017* -
## Math

Could anyone give me any idea on how t o answer this? Thanks 1.A classmate tells you, “Finding the coordinates of a midpoint is easy. You just find the averages.” Is there any truth to it? Explain what you think your classmate means. - I think what he

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

Calculate the grams of oxygen gas present in 2.5 L sample kept at 1.66 atm pressure and a temperature of 10 C. - I got 5.72 grams Determine the volume of oxygen gas needed to completely combust 0.202 L of Butane(C4H10). -I got 1.31 L O2. -Thanks

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

How would I solve this part of the Fibonacci sequence piecewise function? f(n) = f(n-1)+f(n-2) if n > 1. Thanks

*asked on March 2, 2013* -
## Chemistry

Because the mass of the reactants equal to the mass of the product of a reaction, the number of moles will be conserved. -I think this is sometime true but I don't know a way to prove that it sometime true. Anyone got an idea ? Thanks

*asked on February 10, 2013* -
## Algebr

Each week you must do a minimum of 18 hours of homework. Participation in sports requires at least 12 hours per week. You have no more than 35 hours per week in total to devote to these activities. - Write a system of inequalities to model the situations.

*asked on November 13, 2011* -
## Math

Write each equation in standard form. 1.y-3=-2.4(x-5) -The answer I got was 2.4x + y = 15. Could someone please check my answer and tell me how to solve it if it wrong? Thanks

*asked on August 21, 2010* -
## Chemistry

The temperature of oxygen is 810 torr at 298 K , what will the pressure be at 330 K? Using Lussac's Law, would the answer be 896.98 torr? Thanks

*asked on March 31, 2013* -
## Chemistry

I had to find the root mean square velocity of a gas using the only formula KE=1/2MV^2 . Is this even possible using only this formula?

*asked on March 11, 2013* -
## Geometry

Use the Law of Detachment to write a valid conclusion for the given information. 1.If two angles are supplementary, then their measures have a sum of 180. 2.Angle X and Angle Y are supplementary. Would the conclusion be this? Thanks -The sum of X and Y is

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

How sediments,fossil, and ice core record Earth's geologic history? It record Earth's geologic history by giving scientist an idea of when certain climates or events happen.(Is this a good answer?) Thanks

*asked on October 6, 2010* -
## Math

Through a given point on a line, there is one and only one line perpendicular to the given line. The hints that it gave was "Do not limit your thinking to just two dimensions". If it just a regular line there will only be one perpendicular line right?

*asked on September 9, 2010* -
## Math

Use the fundamental counting principle to find the total number of outcomes in each situation. 1.Rolling two number cubes and tossing one coin. = Is the outcome = 4? 2.Choosing from 3 sizes of distilled,filtered, or spring water. = Is the outcome 9? Thanks

*asked on February 8, 2010* -
## Science

Can a person with a genetic disorder that has been corrected by gene transfer pass the corrected condition to is or her children? Explain -Yes, it is because genetic disorder is cause by an an abnormal in genes or chromosomes so it is not a 100% that the

*asked on February 20, 2011* -
## Math

Express each statement using an inequality involving absolute value.Do not solve. 1.The majority of grades in Sean's English class are within 4 points of 85. 2.AA thermometer is guaranteed to give a temperature no more than 1.2F from the actual

*asked on March 18, 2010* -
## Math

Express each statement using an inequality involving absolute value.Do not solve. 1.The majority of grades in Sean's English class are within 4 points of 85. 2.AA thermometer is guaranteed to give a temperature no more than 1.2F from the actual

*asked on March 17, 2010* -
## ELA

Your assignment for this portfolio is to do the following: research the Victorian period in England. You can focus on work, schools, historical events, cultural details, or holiday traditions. Compare the Victorian period to modern day life.

*asked on May 6, 2017* -
## Physic

A car traveling 100 km/h is 200m away from a truck traveling 50 km/h (in the same direction). Assuming constant braking acceleration, what is the minimum deceleration the car must have if it is not to hit the truck? Can someone hint me on how I can start

*asked on August 28, 2013* -
## Chemistry

H2O2 + Heat = H2O + O2 Would this be combustion or decomposition? Since the products are H2O and O2, I thought it would be combustion but then H2O can be decompose into H2O and O2 which would be decomposition.

*asked on January 13, 2013* -
## Social Studies

1. What caused the settlement of African Americans in the Mississippi Alluvial Plain region than in the Ozark Mountains region. Slavery and Plantation . Mining and logging . The use of modern technology. Low priced land and modern technology. 2. Why did

*asked on February 13, 2019* -
## Chemistry

Let say you were given this equation: NiBr2 + Co = Ni + CoBr2 How can you tell which is liquid,gas,solid,aqueous? Do you just use what you know and figure it out? Like since NiBr2 can be broken down because of the solubility rule, you can assume it aq then

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

What positive value of b makes 9^2-bx+4 a perfect square trinomial? How would you solve this problem? Thanks

*asked on March 25, 2012* -
## Geometry

Anyone know how to write a proof for this? - The perpendicular segment from a point to a plane is the shortest segment from the point to the plane. Thanks

*asked on February 13, 2011* -
## Math

Write a two column proof. -If XZ=ZY,XZ=4x+1,and ZY=6x-13, then x=7. Statements: Reason: 1.XZ=ZY,XZ=4x+1 and ZY=6x-13 1.Given That as far as I got to ^. Thanks

*asked on October 11, 2010* -
## Math

Determine whether the following statements are always,sometime, or never true.Explain 1.Three points determine a plane. 2.The intersection of two planes can be a point. 1.Never true, the three points must be noncollinear. 2.Never true, the intersection of

*asked on October 6, 2010* -
## Language Arts

Use the fallowing sentences and use vivid verbs and adjective to rewrite the sentences. The sentences that I'm having problem with is : I play video game. Could anyone give me idea on how to improve that sentences? Thanks

*asked on August 24, 2010* -
## Math

Write and solve a system of equations for each situation. 1.Your school sells tickets for its winter concert. Student tickets are $5 and adult tickets are $10. If your school sells 85 ticket and makes $600, how many of each ticket did they sell? -Could

*asked on October 30, 2011* -
## Math

Write each compound inequality as an absolute value inequality. 1.3 < h < 1.5 Could someone give me the step too? Thanks

*asked on September 12, 2011* -
## Geometry

Use the Law of Detachment to write a valid conclusion for the given information. 1.If two angles are supplementary, then their measures have a sum of 180. 2.Angle X and Angle Y are supplementary. -What do they mean when they ask me to write a valid

*asked on October 16, 2010* -
## Chemistry

I need to write the total ionic equation for this equation. Copper(ii)sulfate + iron = iron(iii)+ copper. Won't it be Cu2+ + SO4-2 + Fe = Fe3+ + Cu ? The answer key say 3Cu2+ + 3SO4-2 + 2Fe = 2Fe3+ + 3SO4-2 + 3Cu Where did they get the sulfate for the

*asked on January 13, 2013* -
## L.A

How should I begin my first paragraph when I'm trying to interpret a poem? The poem is Nothing Gold Can Stay by Robert Frost.Thanks

*asked on May 4, 2010* -
## math

5. 4, 12, 36, 108, . . . A. 304, 912, 2,736 B. 324, 972, 2,916 C. 354, 1,062, 3,186 D. 332, 996, 2,988

*asked on February 27, 2017* -
## Math

The metric ton of CO2 product per gallons of gas can be calculated with the following. 8.78 x 10-3 metric tons of CO2 are emitted per gallon of gas. Let say the gallon of gas is 1288. Would the CO2 produced be around 11.3 tons? Thanks

*asked on January 22, 2013* -
## Chemistry

I'm currently learning about balancing chemical equation but I don't understand the equation below. 2FE + 3CL(subscript 2) -> 2FECL(subscript 3) I understand 2FE balance out but how did 3CL2 became CL3? Thanks

*asked on December 16, 2012* -
## Science

I'm currently studying for a science test and I need help on one of the question. - What is a tsunami and how is it related to an earthquake? For the part " What is a tsunami, my answer would be Tsunamis are giant waves caused by earthquakes or volcanic

*asked on June 2, 2011* -
## Math

The problem I have to solve is log with base 2 ^6 multiply by log base 6 ^ 8. I use the change of base formula and got log6/log2 * log8/log6 Which become log6/log2 * log2()^3/ log 6 I'm stuck here thanks.

*asked on June 18, 2013* -
## English

I'm not a native speaker of English so I have grammar problems. What are some ways that I can improve my grammar? Do reading grammar book help? Also, is there any way to improve my writing beside writing more? Thank you

*asked on December 17, 2012* -
## Chemistry

Is this always true, sometime true, or never true? The orbitals of a principal energy level are lower in energy than the orbitals in the next higher principal energy level. -I'm thinking sometime true but I can't figure out how to explain why it sometime

*asked on November 6, 2012* -
## Math

The length of a rectangle is 5 cm greater than it width. The perimeter is 58 cm. What are the dimension of the rectangle? I know the formula for Triangle Perimeter is 2(L+W) and the L is +5 more than the W but I can't write the equation for it. This is

*asked on September 1, 2011*