# melanie

Newest questions and responses by melanie-
## History

Why did the Roman republic use separation of powers in government? A. so the Senate could be the most powerful branch B. so no one branch would get too powerful C. so the magistrates could veto the assemblies D. so the plebeians could join the race of

*asked on December 12, 2018* -
## Algebra

Solve the inequality : 6/-5 < -18 i know it's false but it as some answers like 1. G < -23, 2. G > -90, 3. G >90, 4. G

*asked on December 10, 2018* -
## history

What is the main reason that Rome was built on hills? A. The hills had fertile farmland. B. The hills provided a natural defense.*** C. The hills were near a port. D. The hills were densely populated.

*asked on December 8, 2018* -
## Math

1. 7r - 7 = 2r + 18 1 .r= -5**** 2. r= 5 3. r= 2.2 4. r= 1.2 2. 2x + 12 = 18 - x 1. x= 3 2. x= 10 3. x= 6**** 4. x= 2 3. 8x - 3 = 15x + 18 1. x = -3 2. x= 3**** 3. x= 2.1 4. x= .9 4. 6y- 6 = 4y + 16 1. y = 2.2 2. y = -2.2 3. y= 11 4. y = 5**** Am i right?

*asked on December 5, 2018* -
## History

Which features of the Roman government limited individual power? Select all that apply. A. The Senate was the most powerful branch of government. B. The assemblies were a form of direct democracy. C. The two consuls could veto each other's actions.***** D.

*asked on December 5, 2018* -
## History

so in the world history book for 8th grade it says that the roman republic had it's own constitution, which was a written set of guidelines we can say as laws. but it was not ratified, as in it was not approved of. I know to make something a constitution

*asked on December 5, 2018* -
## history

Please check my answers! Characteristics women can vote United States representative democracy: United States government included separation of powers: United States government structured by a constitution: United States part of government like an

*asked on December 4, 2018* -
## Algebra

Hey people, i need some help i tried to do this but i don't know what im doing help me out here please... 1.x/4 +1 = -5 a. -2**** b. 16 c. 4 d. -24 2. 6x + 29 = 5 a. -4** b. -18 c. 204 d. -144 3. combine like terms. -21a +16a 1. -5a**** 2. 5a 3. 37a 4.

*asked on December 4, 2018* -
## art

1.what is one characteristic on this student work a. creation of 3-D art b. creation of cubist art c. exact representation of human proportion**** 2. to create a portfolio of work this artist would do all the following except? a .include more drawings of

*asked on December 3, 2018* -
## ART

What is one characteristic of this student's work? ( woman's head by Iris v.) 1.creation of 3-D art 2.creation of cubist art 3.exact representation of human property 4.use of cool colors only

*asked on December 3, 2018* -
## history

Which specific problem led Rome to change from a monarchy to a republic?

*asked on December 3, 2018* -
## history

someone plz help me Drag the geographical features that helped Rome flourish to the box. mountains plateaus plains rivers desert i think river mountains and plains am i right

*asked on December 3, 2018* -
## history

URGENT QUESTION PLZ ANSWER ASAP How did common Greeks explain natural events prior to scientific explanations?

*asked on December 3, 2018* -
## history

I'M confused can someone please explain this to me and help me figure out the answer? How did Greek scientists change the way people viewed and understood the natural world around them? How did common Greeks explain natural events prior to scientific

*asked on November 29, 2018* -
## history

someone PLZ HELP ME! Why did the ancient Greeks use conquest, colonization, and trade? A. to build a strong and unified empire B. to stay isolated from other empires C. to establish a uniform currency D. to get the resources they needed to survive is it d

*asked on November 29, 2018* -
## history

How did geography affect the development of independent city-states? Select all that apply. A. The mountains isolated the city-states. B. The sea separated the city-states. C. The coastal areas were not fertile. D. The plains were barriers. E. The climate

*asked on November 29, 2018* -
## history

Which of the following describes life in Sparta for children? A. Young boys got a well-rounded education. B. Young boys were taught to obey orders. C. Girls stayed in the home with their moms. D. Boys were expected to participate in government. is it b plz

*asked on November 29, 2018* -
## history

Which is the most important lesson that can be learned from the Persian Wars? A. That Athens alone could have beaten Persia. B. That Persia was too powerful to ever defeat. C. That the Greek city-states should stay independent at all times. D. That a

*asked on November 29, 2018* -
## math

can someone help me like ASAP 1. 13x - 7 = 136 A. 11 B. 15******* C. 8 D. 9 Am I correct?

*asked on November 29, 2018* -
## science

Breanna and Kevin learned that fossil fuels, such as coal and oil, release energy when they are burned. Breanna believes this energy comes from the ancient plants and animals that formed fossil fuels, but Kevin says the power in fossil fuels comes from the

*asked on June 3, 2018* -
## math

The chart below (Monday:2,600, Tuesday: 3,100, Wednesday: 2,800 and Thursday: 3,200)displays Jim's sales for the first four days of his work week. Jim's boss told him that he would get a promotion if his mean sales for Monday through Friday were at or

*asked on June 1, 2018* -
## Math

Whole numbers from 1-10 that are factors of… 1260 Whole numbers from 1-10 that are factors of... 73500 Whole numbers from 1-10 that are factors of... 3600 Can I have help ASAP with these three problems? Thank you in advance! :)

*asked on December 13, 2017* -
## Math

Write the number in two other forms two hundred thirty four thousand one hundred sixty four

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

Managers of a local shopping mall selected a random sample of shoppers and recorded the gender of each. Here are their results. Gender Number of People Male 69 Female 106 Based on this sample, how many of the next 2000 shoppers would we predict to be

*asked on August 20, 2017* -
## Statistics

What is the probability that simple random sample of 50 staff members provides a sample mean leave of 6.5 to 9.5 weeks?

*asked on August 1, 2017* -
## Math

If the diameter of a circle P is 40 percent of the diameter of circle Q, then the area of circle P is what percentage of the area of circle Q? Not enought information given right?

*asked on July 18, 2017* -
## math

If 3/x= 6, then x-1= I tried to solve for x and got 2, but 3/2 does not equal 6??

*asked on July 18, 2017* -
## Literature

Since the time of the play's first performance, the props and set have been designed to be minimal so that________. the play can be performed in outdoor as well as indoor locations the play becomes more appealing for younger audiences ***my answer actors

*asked on May 5, 2017* -
## Plz help check my answer!!?

The commute times during rush hour traffic on a local interstate have a mean of 25 minutes and a standard deviation of 5 minutes. Repeated studies of this section of interstate are considered normally distributed. What percent of commuters drive between 20

*asked on April 24, 2017* -
## Check my math question please? Very urgent!

The commute times during rush hour traffic on a local interstate have a mean of 25 minutes and a standard deviation of 5 minutes. Repeated studies of this section of interstate are considered normally distributed. What percent of commuters drive between 20

*asked on April 24, 2017* -
## Math-decimals

Is 20 times 5/6 greater or less than 20?

*asked on February 16, 2017* -
## Science

Why do Oil & Water not mix? I'm so confused (This is just something I wanna know, no multiple choice) also, Ms. Sue, If you see this, Hi

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

A waitress Nikia makes three dollars per hour +8 dollars in tips she goes to earn no less than $26 today what is the algebra equation for that

*asked on December 20, 2016* -
## Chemistry

Determine the volume of a 0.1 M solution of HCl, necessary to titrate 20 mL of a 0.5 M solution of NH3. The value of Kb is 1.8 x 10-5.

*asked on December 13, 2016* -
## Chemistry

Determine the variation of the buffer of the problem 1, if 200 mL of the buffer is added 10 mL of a 1.0 M solution of HCl.

*asked on December 13, 2016* -
## Chemistry

Calculate the pH of a buffer made of a 0.4 M of acetic acid and 0.5M of sodium acetate. The Ka for the acetic acid is 1.8 x 10-5.

*asked on December 13, 2016* -
## math

rearrange A = 2 pi r (r+h) to make h the subject (cylinder)

*asked on October 28, 2016* -
## math

2x^2 - 5 y = _______ 3x^2 - 4

*asked on October 28, 2016* -
## Math

What is 5/12 divided by 3/4

*asked on October 18, 2016* -
## English, Language Arts

Please check my answers 1. In the play Crossroads: A Sad Vaudeville, the use of stage directions better helps the reader to observe the movements of a character. envision inside the mind of a character. understand how a character responds to a certain

*asked on October 9, 2016* -
## Jar Marbles

A jar contains 5 red marbles, numbered 1 to 5, and 12 blue marbles numbered 1 to 12. a) A marble is chosen at random. If you're told the marble is red, what is the probability that it has the number 3 on it? b) The first marble is replaced, and another

*asked on October 9, 2016* -
## math

MR Zheng sold a total of 576 muffins and cookies the ratio of the number of muffins sold to the number of muffin sold to the number of cookies sold was 4:5> how many muffin were sold and how many more cookies that muffins were sold

*asked on September 18, 2016* -
## math

A box filled with 38 identical balls had a mass of 2.13kg.When 26 balls were removed,the total mass of box and the remaining balls was 0.96 kg.Find the mass of the box when it was empty

*asked on September 18, 2016* -
## Chemistry

At normal temperature and pressure, air has a density of 0.001184 g/mL. What is the mass of air in a room that is 3.93 m by 2.28 m by 2.25 m?

*asked on August 29, 2016* -
## Chemistry

A solution is 40% acetic acid by mass. The density of this solution is 1.049 g/mL. Calculate the mass of pure acetic acid in 460 mL of this solution at 20 C. Answer in units of g.

*asked on August 29, 2016* -
## Chemistry

The standard disposable propane cylinders for use with camp stoves, lanterns, portable barbecues, etc, contain 355 g of propane. Calculate the total energy available from one of these cylinders.

*asked on June 11, 2016* -
## Intro to computers 1

Which logging category does not appear in Event Viewer by default? A. Application B. System C. Volume D. Security

*asked on June 10, 2016* -
## math

There is a diagram of a running track. The track is made up of two straights and two semicircles. The radius of each semicircle is 35 meters. The length of the outer perimeter of the entire running track is 400 meters. Find the length of one of the

*asked on May 19, 2016* -
## chemistry

How can i be accurate when assigning oxidation numbers? By this i refer to elements that have more than 1 oxidation # . For example: I have been working with hydrides and i had this reaction in mind: Nb + H Shoud i use 3 or 5 for Nb, why?

*asked on April 30, 2016* -
## SCIENCE

Which of the following gases occupy the smallest volume at STP? a 4.032 g H2 b 1.000 mol of carbon dioxide c 6.022 × 1023 molecules of O2 d 35.45 g Cl2

*asked on April 27, 2016* -
## Math

At the grocery store Mr and Mrs Bailey bought 24 apples and 18 pears. Write a ratio in simplest form to compare apples to pears

*asked on April 14, 2016* -
## Chemistry

Number of Moles of AgNO3 when 0.25 grams of NaCl react with AgNO3

*asked on April 4, 2016* -
## sociel studies

how did most people in the middle colonies make a living

*asked on March 28, 2016* -
## History Check My Answer!

Hey I just have 1 question. What event caused four additional Southern states to secede from the Union? The U.S. accepted West Virginia as a state. The South fired on Fort Sumter. Lincoln declared the Emancipation Proclamation. ****** Lincoln raised an

*asked on February 25, 2016* -
## Physics

Josie and Charlotte push a 14-kg bag of playground sand for a sandbox on a frictionless, horizontal, wet polyvinyl surface with a constant, horizontal force for a distance of 8 m, starting from rest. If the final speed of the sand bag is 0.15 m/s, what is

*asked on February 10, 2016* -
## Physics

It takes 170 kJ of work to accelerate a car from 21.5 m/s to 27.0 m/s. What is the car's mass?

*asked on February 9, 2016* -
## chemistry

Propane is used in BBQs and burns according to the following equation: C3H8 + 5O2 -> 3CO2 + 4H2O. If 2.2 moles of carbon dioxide are produced, how many moles of oxygen gas reacted?

*asked on February 3, 2016* -
## Physics

What is the average linear speed of Mercury about the Sun? (The distance from the Sun to Mercury is 5.80 1010 meters. The orbital period around the Sun is 88 days.)

*asked on February 1, 2016* -
## Math

1. Doug earns $10.50 per hour at a restaurant. On Friday, he's been 1 3/4 hours cleaning, 2 1/3 hours doing paperwork, and one 512 hours serving customers . What were dougs earning? 6. Salid bought 35 feet of window trim at a hardware store. The trim it

*asked on January 31, 2016* -
## Physics

On earth, two parts of a space probe weigh 14500 N and 6400 N. These parts are separated by a center-to-center distance of 19 m and may be treated as uniform spherical objects. Find the magnitude of the gravitational force that each part exerts on the

*asked on January 29, 2016* -
## Physics

A car travels at a constant speed around a circular track whose radius is 2.8 km. The car goes once around the track in 430 s. What is the magnitude of the centripetal acceleration of the car?

*asked on January 21, 2016* -
## Physics

A wheel is rotating at a rate of 2.5 revolutions every 3.6 s. Through what angle, in radians, does the wheel rotate in 1.0 s?

*asked on January 21, 2016* -
## Math

The tournament starts with 64 teams playing 32 games and continue until there is only one team left. Come up with a formula for how many teams are left after x rounds. Ok so far I have y= 64-x-32 However, I know that won't work. I'm just not really sure

*asked on December 1, 2015* -
## chemistry

C3H6O + 4O2 --> 3CO2(g) + 3H2O(g) deltaH= -1790kJ the density of C3H6O is 0.79g/mL. HOw much heat is released by the combustion of 150mL of acetone?

*asked on November 3, 2015* -
## health

What causes depression? A. Environmental issues B. There is no known cause C. Biochemical issues D. Genetic issues ithink it D?!!

*asked on November 2, 2015* -
## health

________ may likely lead to aggressive behavior. A. All of the above B. Complacency C. Sadness D. Irritability think it d ????!!!

*asked on November 2, 2015* -
## physics101 please

a 12,000 kg truck is moving right at 22 m/s collides with and sticks to a 1200 kg car moving to the right at 16 m/s. With what speed do the two vehicles move after the collision and in what direction?

*asked on October 19, 2015* -
## physics101 please

a 1500 kg car is driven around a circle of radius 120 m and at a speed of 26 m/s. calculate the magnitude of the centripetal force of the car. What real force keeps the car moving in a circle? the answer is not one of the four fundamental forces, but way

*asked on October 19, 2015* -
## physics

a motorcycle initially moving at +32 m/s accelerates at -4.0 m/s for 3.0s. a car initially at rest accelerates at 4.0 m/s for 5.25 s. a) Which vehicle will be going faster at the end of each given time, and how much faster? b) how far does each vehicle

*asked on October 19, 2015* -
## Math

A sc tourists bureau survey showed that 75 % of those who seek information about the state actually come to visit . The office received 8 requests for information. What is the probability that probability that 4 to 6 inclusive of the people will visit sc?

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

A shopper uses a department store gift card to pay for 3 sweaters priced at $27 each. What integer can be used to show the amount of change?

*asked on September 27, 2015* -
## Chemistry

What is the concentration when each of the following is dissolved in 1.50 L of water: a) 3.00 moles of NaCl b) 10 g of KCl c) 110 mg of NaCO3

*asked on September 24, 2015* -
## physics

a car moving at 6m/s accelerate at 1.5meter squared per second for 4seconds.It then it slows down at rate 1.2 meter squared per second. What is the distance travel?

*asked on August 21, 2015* -
## Physics

A photon having wavelength λ scatters off a free electron at A (see figure below), producing a second photon having wavelength λ'. This photon then scatters off another free electron at B, producing a third photon having wavelength λ'' and moving in a

*asked on June 17, 2015* -
## Math

Determine the simple interest p=6742.75,6.05%, t=90 days

*asked on April 25, 2015* -
## Chemistry

1. How many moles of ammonia NH3 are produced when 0.45 moles of nitrogen N2 reacts? N2 + 3H2 yields 2NH3 2. How many mililiters of water will be produced when 2.05 g of hydrogen reacts? The density of water is 1.00 g/mL ? 2H2 + O2 yields 2H2O 3. What is

*asked on March 18, 2015* -
## math

Rick has a collection of 6 video games. He lets his best friend borrow: of his video game collection. Write two equivalent to this number Explain how you came fractions up with the fractions.

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

Adam wants to compare the fractions 129 6 and 1. He wants to order them from least to greatest and rewrite them so they all have the same denominator. Explain how Adam can rewrite the fractions.

*asked on March 2, 2015* -
## business math

A local Barnes and Noble paid a $79.44 net price for each calculus textbook. The publisher offered a 20% trade discount. What was the publisher’s list price?

*asked on February 24, 2015* -
## Grade 9 French

I need help I'm trying to find a rap to help me with the present and irregular verbs

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

three information technology applications--clinical decision support systems--as components of QI management.

*asked on January 19, 2015* -
## Geometry

Given that R is between S and T, find each missing measure. RS=6, TR=4.5, TS=?

*asked on September 8, 2014* -
## math

The least common multiple of two numbers is 60 and one of the other number is 7 less than the other number what are the numbers justify your answer

*asked on September 3, 2014* -
## History

Ok the question was, what evidence in the declaration is there of religious faith? I put, "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are

*asked on July 23, 2014* -
## History

So for my homework question it asks what reference do you see to Native Americans in the Declaration of Independence? I put: "He has excited domestic insurrections amongst us, and has endeavored to bring on the inhabitants of our frontiers, the merciless

*asked on July 23, 2014* -
## History

Question about Puritans behavior in Massachusetts? I was given a picture that wont let me post on here. The top picture has a cowboy boot and a book, and the second picture has a more feminine boot, with dice, a cup, etc. And have to answer: What does the

*asked on July 16, 2014* -
## Algebra

Myra uses an inverse variation function to model the data for the ordered pairs below. (2, 30), (3, 20), (4, 15), (5, 12), (6, 10) Which statement best explains whether an inverse variation function is the best model for the data? An inverse function is

*asked on July 7, 2014* -
## Algebra

Jordan uses a linear equation to model the data in a table. Which reasoning might Jordan have used in the decision to model the data with a linear equation? The products of corresponding x- and y-values are equal. The ratios of consecutive y-values are

*asked on July 7, 2014* -
## trig

earth is 149 600 000 km from the sun. this distance is equal to 1 A.U (astronomical unit). Mars is seen form earth to make an angle of 68degrees with the sun. a) draw a diagram and label b)how far are earth and mars c) do you think the distance between

*asked on May 27, 2014* -
## Physics

A sound wave in a solid has a frequency of 15.0 kHz and a wavelength of 0.333 m. What would be the wave speed, and how much faster is this speed than the speed of sound in air?

*asked on March 4, 2014* -
## math

on a boat tour there are half as many children there are as adults. ther are 40 people on the tour how many children are there

*asked on March 3, 2014* -
## Math

Write an equation of a line that is parallel to the line y-3=2(x+5) and goes through the point (5,7)

*asked on February 12, 2014* -
## Math

Three minutes after take-off, and airplane is 5,000 feet in the air. If it ascends at a constant rate, what is the rate of change? Please help.

*asked on February 12, 2014* -
## Math

In 3 minutes I can type 192 words. and in 5 minutes I can type 311 minutes. Find how many words I can type per minute. Help please.

*asked on February 12, 2014* -
## Math

Solve each system using the method of your choice. 1. 7x+2y=17 2. 6x-5y=-9 3. y=4x-8 4. y=2x+10 5. 3x-6y=30 6. y=-6x+34 7. 3x+y=5 8. 15x+5y=2 9. 2m=-4n-4 10. 3m+5n=-3 11. 5x+y=0 12. 5x+2y=30 Thank you. (:

*asked on February 11, 2014* -
## Chemistry

A buffer is made from 0.20 M sodium acetate and 0.20 acetic acid. Ka=1.8 x 10^-5. The ph is

*asked on July 10, 2013* -
## chemistry

Consider the following reaction: I2(g) + Cl2(g) 2ICl(g) o Kp = 81.9 at 25 C. Calculate ∆Grxn for the reaction at 25 C under each of the following conditions: a Standard conditions. b At equilibrium. c PICl = 2.55 atm; PI2 = 0.325 atm; PCl2 = 0.221 atm.

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

Calculate ∆Ssurr when a reaction having each of the following changes in enthalpy: a. ∆Hrxn0 = -287 kJ; 298 K. b. ∆Hrxn0 = 127 kJ; 77 K.

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

only one of each of the following pairs of reactants undergoes a reaction. Complete and balance the equation for the reaction that occurs. NaCl (aq) + BaCl2 (aq) --> Na2SO4 (aq) + BaCl2 (aq) --> NO3^- (aq) + OH^- (aq)+ Al (s) --> CO3^2- (aq) + OH^- (aq)

*asked on April 15, 2013* -
## pre-calculas

Find the slant asymptote, if any, of the rational function. Do not graph the function. (Enter your answers as a comma-separated list of equations. If an answer does not exist, enter DNE.) f(x) = x2 − 2x + 15 _____________ x + 7

*asked on March 10, 2013*