# Ava

Most popular questions and responses by Ava-
## Science

Which process of the carbon cycle is responsible for the release of carbon at the power plant, as shown by the arrow? A. combustion B. photosynthesis C. digestion D. decomposition @Ms.Sue can you check my answer I think the answer is A.

*asked on November 7, 2015* -
## Social Studies

Sorry i need help thanks if you came to help us with all other question! What steps did the Roman empire take to expand and support trade? Select all that apply. A. built a vast network of paved roads B. raised taxes on ordinary citizens C. sent its navy

*asked on September 27, 2018* -
## Math

The legs of a right triangle measure 24 feet and 45 feet. What is the length of the hypotenuse? A. 51 ft** B. 69 ft C. 38.07 ft D. 8.31 ft I think A

*asked on March 3, 2016* -
## Chemistry

A CaCl2 solution is given to increase blood levels of calcium. If a patient receives 5.0 mL of a 5.0 % (m/v) CaCl2 solution, how many grams of CaCl2 were given?

*asked on July 17, 2016* -
## Language Arts

From the novel Dragonwings: Which of the following passages from the text best supports the story's theme of loyalty? a. "You only had to punch the biggest and toughest of the bunch and the others would accept you." b. "We see the same thing and yet find

*asked on May 21, 2017* -
## Algebra

Identify all the sets to which 3.1214122144 … belongs

*asked on May 18, 2017* -
## Science

How can you describe the location of magnesium (Mg, atomic number 12) periodic table? A. nonmetal B. metalloid C. group2, period3 D. group3, period 2 @Ms.Sue My answer is C. Can you check my answer Thank you

*asked on November 7, 2015* -
## Psychology Final Exam 2

Check my answers? 17. A _________ is the functional unit of the nervous system. (1 point) Neuron******* Dendrite Head Cell body 18. The Central Nervous System consists of the __________ and __________. (1 point) heart and blood vessels muscles and tendons

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

I randomly throw 2 darts at a board of 15 balloons. 4 are purple, 3 red, 4 blue, 2 yellow and 2 green. What is the probability of hitting two purple balloons?

*asked on September 25, 2016* -
## science

Analyzing Elements of a Scientific Method Read the following statements and then answer each question below. 1. You and your friend are walking along a beach in Maine on January 15, at 8:00 am. 2. You notice a thermometer on a nearby building that reads -1

*asked on September 10, 2012* -
## Math

Olivia is growing roses and keeps track of how much fertilizer (in ounces) she adds to the soil and how many blooms each rose bush has. She finds a linear relationship that can be modeled by the equation y = 1.345x + 4. When will Olivia only have 4 blooms?

*asked on May 23, 2017* -
## History

How does the Syria war compare to the war that started between the American Colonists and England?

*asked on December 20, 2018* -
## history

Mark the statement if it describes an event in the period of time leading to napoleon's final defeat at waterloo. A. Napoleon raises an army and tries to defeat the allies B. parisians welcome napoleon back to the capital.

*asked on August 29, 2016* -
## pre algebra

Application of percent Alice earns a monthly salary of $315 plus a commission on her total sales. Last month her total sales were $9640, and she earned a total of $1182.60.What is her commission rate?

*asked on November 30, 2011* -
## physics

A balloon of total mass 840 kg is rising vertically with constant speed. As a result of releasing some ballast, the balloon immediately accelerates at 0.5 m/s². Calculate the mass of the ballast released.

*asked on April 6, 2012* -
## into computers

Your boss is considering a BYOD program for your company. He asks you if there are any negatives to such a program. What do you tell him? A. It limits the freedom of the user to access websites and applications. B. It introduces security and control

*asked on November 20, 2013* -
## History

How does the Syria war compare to the war that started between the colonists and England?

*asked on December 20, 2018* -
## Chemistry

A solution of 0.211 M NaOH is used to titrate 24.0 mL of a H2SO4 solution. If 19.0 mL of the NaOH solution is required to reach the endpoint, what is the molarity of the H2SO4 solution? H2SO4(aq)+2NaOH(aq)→2H2O(l)+NaSO4(aq)

*asked on July 22, 2016* -
## Science

. You and your friend are walking along a beach in Maine on January 15, at 8:00 am. 2. You notice a thermometer on a nearby building that reads -1 degrees C. 3. You also notice that there is snow on the roof of the building and icicles hanging from the

*asked on September 10, 2012* -
## physics

A tennis ball (mass 57.0 g) moves toward the player's racquet at 46.4 m/s. It is in contact with the racquet for 3.60 ms, after which it moves in the opposite direction at 49.8 m/s. What is the average force on the ball due to the racquet? (Assume the ball

*asked on February 8, 2015* -
## chemistry

Iron reacts with chlorine to form iron(iii)chloride. A)How many chlorines react with 1.86g of iron? B)What mass of iron(iii)chloride is produced?

*asked on October 23, 2013* -
## Algebra

If 1/2 = m - 1/8, what is m? I think it's 5/8.

*asked on December 14, 2018* -
## Chemistry Urgent

1) 30cm3 of methane and ethane mixed with 100cm3 of O2 at RTP. Explosion occurs, on cooling 61.5cm3 remained. Find the percentage by volume of each gas in the mixture 2)32cm3 of a mix of CO2, CH4 and H2 mix with 50cm3 of O2 and exploded after cooling to

*asked on February 10, 2014* -
## teas test

a population decreases from 404 million to 288 million. what is the percent decrease of the population?

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

Updated: At midnight the temperature was -8F. At noon the temperature was 23F. Which expression represents the increase in temperature? A) -8 - 23 B) {-8} - 23 C) -8 - {23} D) {-8 - 23}

*asked on April 11, 2019* -
## Chemistry

How many grams of sodium acetate, NaC2H3O2, would have to be added to 5.00 L of 0.65 M acetic acid (pKa 4.74) to make the solution a buffer for pH 4.00? I did this but it's not the right answer: 4 =4.74 + log(A/.65) 0.74=log(A/0.65) 10^-0.74= A/0.65 0.182

*asked on April 24, 2014* -
## Chemistry

In the gas phase reaction CH4 + H2O → CO + 3 H2 At T = 1500 K , Kp = 11000 Calculate Kp, T = 1500 K , for the following reaction 3 CO + 9 H2 → 3 CH4 + 3 H2O .

*asked on September 24, 2009* -
## Chemistry

The following table contains data for the equilibrium reaction CH3COOH(g)+ C2H5OH(g)↔ CH3COOC2H5(g)+ H2O(g) T = 100oC. Each row in the table represents a different experiment (diffferent intial concentrations). Initial concentration Equilibrium

*asked on September 24, 2009* -
## fractions

38/53 in the simplest form

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

Jack brought 2 quart of motor oil. His car took 1quart and another half quart. How many cups of oil does he have left?

*asked on April 13, 2015* -
## math

What is the product of the complex numbers (-3i+4) and (3i+4)? I've forgotten how to do this...

*asked on March 29, 2017* -
## Physics

Mammals that depend on being able to run fast have slender lower legs with flesh and muscle concentrated high, close to the body. On the basis of rotational dynamics, explain why this distribution of mass is advantageous.

*asked on April 18, 2010* -
## Maths

Alan and George receive some money in the ratio 2:5. The total received was £490, how much did George get?

*asked on October 11, 2016* -
## Chemistry

I'm not sure how to do these...I keep getting the wrong answers... Please help someone... Mg(s) + 2 HCl(aq)= MgCl2 (aq) + H2(g) a. What volume of 15.7 M hydrochloric acid will react with 2.1 grams of Mg? b. What mass of magnesium will react with 8.5 liters

*asked on April 15, 2016* -
## Chemistry

How many moles are in 1.59 kg of sodium?

*asked on June 4, 2015* -
## Physics

A box is pulled along a level floor at a constant speed by a rope that makes a 45 degree angle with the floor. The box weighs 100N. The coefficient of sliding friction is 0.75. The normal force exerted on the box by the floor is?

*asked on January 7, 2015* -
## Science

Please check my answers? My textbook won't load, so i've had to use google and guess. 1. Scientists hypothesize that the sun formed ____. (1 point) less than a billion years ago **from a cloud of gas and dust less than a million years ago from a chunk of

*asked on February 19, 2013* -
## Science

What is the puckered opening between the legs of a frog called?

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

I music store gives every 20th customer a five dollar gift card. Every 50th customer gets a $10 gift card. Which customer will be the first to receive both types of gift cards?

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

A photo lab manager graphed the cost of having photos developed as a function of the number of photos in the order. The graph is a line with a slope of 1/10 that passes through (10,6). Write an equation in slope-intercept form that describes the cost to

*asked on April 1, 2014* -
## chemistry

. For the gas reaction at low pressure 2NOBr ↔ 2NO + Br2 ΔH = +61.1 kJ which of the following statements are true? a) Adding more Br2 shifts reaction to the right b) Removing some NOBr shifts reaction to the left c) Increasing temperature shifts

*asked on September 29, 2009* -
## Math

A map uses a scale of 3/4 cm: 10 miles. If 2 cities are 4 cm apart, what is the actual distance?

*asked on January 5, 2017* -
## Psychology

1. Describe the structure of a neuron and explain the function of each of its major parts. I dont want anyone to answer FOR me, but I really need help on where to start. If you could help, I would greatly appreciate it.

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

I have another question that stumped me Line segment AB with length a is divided by points P and Q into three line segments: AP , PQ, and QB , such that AP = 2PQ=2QB. Find: A)the distance between point A and the midpoints of the segments the segment QB B)

*asked on September 24, 2016* -
## Geometry

You wanna adopt a puppy from your local animal shelter. First, you plan to build an outdoor play pen along the side of your house, as shown below. If a dog grass cost $1.70 a square foot, how much will you spend A) $23.80 B) $30.60**** C) $35.70 D) $40.80

*asked on September 26, 2017* -
## Pre-Algebra

A radio signal travels at 3.00*10^8 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 3.54*10^7?

*asked on May 2, 2017* -
## Math

A sum of money was shared amount Aaron, Ben, and Charles in the ratio 2:5:7 If Charles's share was $1,180 more that Aaron's share, what was the oringinal sum of money shared?

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

I need help paraphrasing this poem? If thou wilt mighty be, flee from the rage Of cruel will, and see thou keep thee free From the foul yoke of sensual bondage; For though thy Empire stretch to Indian sea And for thy fear trembleth the farthest Thylee, If

*asked on November 2, 2009* -
## calculus

The curve below is called a witch of Maria Agnesi. Find an equation of the tangent line to this curve at the point (-2, 1/5). y=1/(1+x^2)

*asked on October 16, 2009* -
## Science

How are frogs able to alter the amount of cutaneous respiration that occurs?

*asked on January 20, 2018* -
## Math

Jack brought 2 quart of motor oil. His car took 1quart and another half quart. How many cups of oil does he have left?

*asked on April 13, 2015* -
## math

How do you solve for y? 8x-4xy=3 And -2x-5y=10

*asked on December 4, 2014* -
## Physics

Mark uses 27 J of work to carry the laundry basket with a force of 17 N. What is the distance he carried the laundry basket?

*asked on November 11, 2014* -
## biology

biolgist concludes that a molecule moves across cell membrane by facilitated diffusion because the molecule is small, polar and can accumulate inside cells even when its concentration inside the cell initially is higher that it is outside the cell and they

*asked on November 11, 2014* -
## math

If a person walks 21 feet in 7 seconds how long does it take to walk 180 feet

*asked on August 28, 2014* -
## Math - please help

Ling is three times as heavy as her packed suitcase. Her suitcase is 20 pounds heavier than her knapsack. The weights of Ling, her suitcase, and her knapsack total 170 pounds. How much does each weigh? Identify a variable, set up an equation, and solve.

*asked on March 11, 2014* -
## Chemistry Urgent

Assuming that kerosene is C11H24, calculate the standard enthalpy change when 1 mole of kerosene burns completely in oxygen, using the data below: ΔH of formation of C11H24(l) = -327 kJ mol ΔH of formation of CO2(g)= -394 kJ mol ΔH of formation of H2O

*asked on March 9, 2014* -
## Science

Ms. Sue this is Ava will you please check my science answers that i posted

*asked on September 10, 2012* -
## Algebra

Can someone please help me with this problem? I can not figure it out. Thank you. solve 4x + x(x-1)=0, find the x-intercepts of f(x)=4x+x(x-1)

*asked on August 30, 2010* -
## critical thinking

Categorize each fallacy statement by copying fallacy type from the list below into the Fallacy Type ext box adjacent the fallacy statement. Provide an explanation as to why you think it is that fallacy type in the Why it is this fallacy type text box

*asked on February 6, 2010* -
## Chemistry

. For the gas reaction at low pressure 2NOBr ¡ê 2NO + Br2 ¥ÄH = +61.1 kJ which of the following statements are true? a) Adding more Br2 shifts reaction to the right b) Removing some NOBr shifts reaction to the left c) Increasing temperature shifts

*asked on September 29, 2009* -
## Physics

A man stands on the roof of a 10.0 -tall building and throws a rock with a velocity of magnitude 30.0 at an angle of 38.0 above the horizontal. You can ignore air resistance. Calculate the horizontal distance from the base of the building to the point

*asked on February 6, 2008* -
## Science

What secondary benefit does a frog gain from a three-chambered heart?

*asked on January 24, 2018* -
## science

What are the major physical differences between the respiratory system of a human and the respiratory system of a frog?

*asked on January 22, 2018* -
## algebra

Write the equation of the line perpendicular to the given line and passing through the given point: y=3x−2 through (3,4) this problem is really hard for me can you please show and tell how you got your answers thanks,:)

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

Robert has three boxes of letters: The first box contains the six letters in the word "bubble" the second box has the three letters in the word "zoo" and the third contains the four letters in the word "taxi". If he randomly selects one letter from each of

*asked on January 20, 2014* -
## math

a school's chorus bought 30 tickets to a play. total cost of tickets $98. if student tickets cost $3 and each adult tickets cost $5, how many adults are going with the chorus? thanks

*asked on January 13, 2014* -
## Chemistry- DrBob222

I completed this question like you told me to. Are the answers correct? Is my method for finding the molecular formula correct? 2.4g of a compound of carbon, hydrogen and oxygen gave on combustion, 3.52g of CO2 and 1.44g of H2O. The relative molecular mass

*asked on October 22, 2013* -
## CHEMISTRY

25cm^3 of a solution of NaOH required 28cm^3 of 1.0 mol dm^-3 H2SO4 to neutralise it. a)Write an equation for the reaction. b)How many moles of H2SO4 were needed? c)How many moles of NaOH were thus neutralised? d)How many moles of NaOH are there in 25cm^3

*asked on October 20, 2013* -
## Algebra/Math

Sue, Mike, Daniel, and Mauricio had a race. These are the times. Sue: 7.41 Mike: 7.38 Daniel: 7.43 Mauricio: 7.25. Who ran the fastest? I think it was Sue.

*asked on September 29, 2018* -
## Math

The length of a rectangle is equal to triple the width. Find the dimensions of the rectangle if the perimeter is 72 cm

*asked on March 14, 2016* -
## Physics

an automobile travels 3 miles due north then 5 miles north of east. what is your resultant displacement?

*asked on June 28, 2015* -
## Civics

What portion of the Congress or the states must support proposing an amendment to the Constitution for consideration? One-half Three-fifths One-fourth Two-thirds

*asked on May 15, 2015* -
## science

doing a biology project and they want us to figure out how long it takes to cook 6 different foods at 5 different temperatures and gather 30 separate data points. They want us to identify an x(independent) and a y(dependent) variable that can be recorded

*asked on August 5, 2014* -
## Chemistry - DrBob222

C6H14 + Cl2 in UV light Below are 5 products, say which one cannot be a product, prove this by showing how each of the other products were formed from the equation above. 1-chlorohexane 2-chlorohexane 2,2-dichlorohexane dodecane hex-1-ene

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

C6H14 + Cl2 in UV light Below are 5 products, say which one cannot be a product, prove this by showing how each of the other products were formed from the equation above. 1-chlorohexane 2-chlorohexane 2,2-dichlorohexane dodecane hex-1-ene

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

An oil painting is 16 years older than a watercolor by the same artist. The oil painting is also three times older than the watercolor. How old is each? Identify a variable, set up an equation and solve. thanks

*asked on January 27, 2014* -
## math

three sisters run a business. they charge $260 for each job. If the oldest sister earns 50% more than the middle sister and if the youngest sister earns 50% less than the oldest sister, how much does each sister earn per job? hint: Identify the variable

*asked on December 3, 2013* -
## algebra

end of season sale for summer clothes advertises 30% to 45% off the original price. What was the highest original price of a swimsuit that is now on sale for $12.99? What was the lowest original price?

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

What is the median: 25, 23, 23, 22, 19, 18, 16, 16, 15, 10, 9?

*asked on April 8, 2011* -
## Algebra 2

Can someone please help me? Use the rational exponents to simplify. 5 sqrt x^20 would the answer be 5?

*asked on September 5, 2010* -
## Radical exponents

Use rational exponents to write 4suare root 5 * 2 sqaure root 8 Please help.. I can't find the square root button

*asked on August 15, 2010* -
## Science

If a real frog was being dissected and the stomach has food in it, would any of it be identified?

*asked on January 19, 2018* -
## Science

What are the internal structures of a frog's stomach called?

*asked on January 18, 2018* -
## English

When you think of separation or isolation, what comes to mind?

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

To get a driver's license, an applicant must pass a written test and a driving test. Pasts records show that 80% of the applicants pass the written test and 60% of those who have passed the written test pass the driving test. Based on these figures, how

*asked on March 29, 2017* -
## Geometry

I am doing 7th grade algebra, and my homework is due by 9:00 and I don't know how to solve this question: Find the measures of supplementary angles 1 and 2 if, A) m angle 1 is less than m angle 2 by 40 degrees B) m angle 1:m angle 2=5:4 Please help soon my

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

What is total area of land in square miles if field is 1.5 miles wide and 1 mile long?

*asked on September 12, 2016* -
## Check my answers? Science

The order of events and ages of rocks by examining positions is *relative dating*. Gaps in rock layers are called *unconformities*. What uses properties of atoms to find ages of rocks? *Absolute Dating*. A life form in Precambrian Time was *Cyanobacteria*.

*asked on May 9, 2016* -
## algebra

what is the slope of the line that passes through the pair points (-7/2,-3)and (-5,5/2)? so far i did m=5/2-(-3) / -5-(-7/2)=11/2 / -3/2 i don't know the rest Im finished my math homework but not this question and class starts in 15 minutes please help

*asked on January 6, 2016* -
## physics

In a game against the White Sox, baseball pitcher Nolan Ryan threw a pitch measured at 44.8 m/s. If it was 18.4 m from Nolan's position on the pitcher's mound to home plate, how long did it take the ball to get to the batter waiting at home plate? Treat

*asked on February 8, 2015* -
## science

1. What allows a cell to stockpile substances in greater concentration than they occur outside the cell? is it active transport? 2. The sodium potassium pump prevents the accumulation of what ions inside the cell? 3. Conduction of nerve impulses is

*asked on November 12, 2014* -
## biology

need help few questions 1. a signaling cell produces a signal that is detected by what type of cell? 2. If the interior of a typical cell is negatively charged, what type of charged ions will not require energy to diffuse into the cell using an ion

*asked on November 11, 2014* -
## Math

How do you identify the vertex of y= xsquared + 16x+64

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

solve for A B=3/8(A-10)

*asked on March 26, 2014* -
## math

Solve for v: C=6u2v

*asked on March 26, 2014* -
## Math

Ling is three times as heavy as her packed suitcase. Her suitcase is 20 pounds heavier than her knapsack. The weights of Ling, her suitcase, and her knapsack total 170 pounds. How much does each weigh? Identify a variable, set up an equation, and solve.

*asked on March 11, 2014* -
## Math

Julia and Kevin are playing games at the arcade. Julia started with $15, and the machine she is playing cost $.75 per game. Kevin started with $13, and his machine costs $.50 per game. After how many games will these two kids have the same amount of money

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

An oil painting is 16 years older than a watercolor by the same artist. The oil painting is also three times older than the watercolor. How old is each? Identify a variable, set up an equation, and solve.

*asked on January 27, 2014* -
## social studies

Which 5 American men are competing in the Skelton event of the 2014 Winter Olympics

*asked on December 3, 2013*

## Pages

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