Friday
May 6, 2016

# Posts by Ava

Total # Posts: 144

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 of 0.7 M ...
April 15, 2016

Math
The length of a rectangle is equal to triple the width. Find the dimensions of the rectangle if the perimeter is 72 cm
March 14, 2016

Math
Thanks
March 3, 2016

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
March 3, 2016

math
Use synthetic division to evaluate the polynomial function for the given value of x. f(x)= 2x^5-x^3+7x+1, x = 3
February 28, 2016

Spelling
Leave is to left as bring is to
February 24, 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 dont know the rest Im finished my math homework but not this question and class starts in 15 minutes please help me!!!!
January 6, 2016

fractions
38/53 in the simplest form
January 1, 2016

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
November 7, 2015

Science
@DrBob222
November 7, 2015

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.
November 7, 2015

Science
inheritance
October 3, 2015

Physics
an automobile travels 3 miles due north then 5 miles north of east. what is your resultant displacement?
June 28, 2015

Chemistry
How many moles are in 1.59 kg of sodium?
June 4, 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
May 15, 2015

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?
April 13, 2015

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?
April 13, 2015

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 is moving in the...
February 8, 2015

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 the ball's ...
February 8, 2015

math
opps its a while later
February 6, 2015

math
answer is c I did test too
February 6, 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?
January 7, 2015

Physics
Fg = mg Fg = (11.0)(9.81) Fg = 107.91 N Sin x/1 = Fg parallel/Fg Sin 25.0/1 = Fg parallel/107.91 Cross multiply (107.91)sin(25) = 45.6 N ≈ 46 N *(≈ <-- is an approximation symbol)
December 10, 2014

Physics
Fg = mg Fg = (11.0)(9.81) Fg = 107.91 N Sin x Fg parallel ------ = ------------- 1 Fg Sin 25.0 Fg parallel --------- = ------------- 1 107.91 Cross multiply (107.91)sin(25) = 45.6 N ≈ 46 N *(≈ <-- is an approximation symbol)
December 10, 2014

math
How do you solve/simplify 32x^3y^4. 3X Over. Times 24x^3y^2. 9Y
December 4, 2014

Thank you so much
December 4, 2014

Can you help me solve for y? 8x-4xy=3 -2x-5y=10
December 4, 2014

math
How do you solve for y? 8x-4xy=3 And -2x-5y=10
December 4, 2014

science
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 use up more energy ...
November 12, 2014

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 possible because of what? ...
November 12, 2014

science
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 channel? 3. Receptor ...
November 12, 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?
November 11, 2014

science
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 use up more energy ...
November 11, 2014

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 possible because of what? ...
November 11, 2014

science
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 channel? 3. Receptor ...
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 use up more energy ...
November 11, 2014

biology
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 possible because of what? ...
November 11, 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 channel? 3. Receptor ...
November 11, 2014

Math
0,1,and 2
October 12, 2014

Math
How do you identify the vertex of y= xsquared + 16x+64
September 4, 2014

math
If a person walks 21 feet in 7 seconds how long does it take to walk 180 feet
August 28, 2014

biology
why is time considered the variable instead of being considered the result/answer?
August 6, 2014

biology
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 seperate data points. They want us to identify an x(independent) and a y(dependent) variable that can be recorded on a table. Would x be...
August 6, 2014

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 seperate data points. They want us to identify an x(independent) and a y(dependent) variable that can be recorded on a table. Would x be...
August 5, 2014

Math
Simplify M^3 n^6 / m^4 n^4 p^-2
April 25, 2014

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 = A/0.65 0.118= A...
April 24, 2014

chemistry
(0.930atm*0.393L)/(0.0821*298)= 0.0149mol 0.0149mol/0.393L= 0.038 -log(0.038)= 1.42 what did I do wrong?
April 24, 2014

Sorry, i meant number 2 on the last one
April 22, 2014

Number 3 is C:redirection of oil wealth to provide social services.
April 22, 2014

Number 3 is D: the search for fossil fuels.
April 22, 2014

Math
When I did it I got y=3/4x+9 1/2... Did u get that also ?
April 20, 2014

Math
Write an equation in slope intercept form of the line that is perpendicular to the given line and that passes through the given point 3x-4y=8 ; (-6,5)
April 20, 2014

Math
For f(x)=3x+2. Find f(4)
April 20, 2014

Math
A model plane flies 18 ft per 2 seconds. What is the planes speed in miles per hour? Round to the nearest tenth.
April 20, 2014

math..help again
Got it.... Thanks so much!!!
April 1, 2014

math..help again
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 1/10th that passes through (10,6). Write an equation in slope-intercept form that describes the cost to have photos developed.
April 1, 2014

math
So if slope intercept form is y=mx+b what would this equation look like for this word problem? Thanks
April 1, 2014

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 have photos developed. ...
April 1, 2014

math
solve for A B=3/8(A-10)
March 26, 2014

math
yes. the equation is c = 6u^2v...solve for v sorry...thanks
March 26, 2014

math
Solve for v: C=6u2v
March 26, 2014

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. Thanks so much
March 11, 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. Thanks so much
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 (l)= -286 ...
March 9, 2014

math
In new Your a taxi costs 72 cents for the first 1/10th of a mile and 15 cents for every additional 1/10th mile. How much does it cost to drive 6 miles? Set up and solve? I do not understand how you got this answer...can you explain? .72+ .15(6-.1).1 = \$9.57 When I work the ...
February 27, 2014

math
In New York a taxi costs 72 cents for the first 1/10th of a mile and 15 cents for every additional 1/10 mile. How much does it cost to drive 6 miles? Set up and solve? Thanks
February 17, 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 remaining? Set up an ...
February 12, 2014

Chemistry - DrBob222
It did help. Thank you very much :-)
February 11, 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
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
February 11, 2014

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 RTP, volume noted is ...
February 10, 2014

teas test
a population decreases from 404 million to 288 million. what is the percent decrease of the population?
February 4, 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.
January 27, 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
January 27, 2014

Math
Describe how using factor pairs helped you solve the problems
January 23, 2014

math
What is Bobby's number? It is between 15 & 25. If you subtract the tens digit from the ones digit, the difference is 8.
January 22, 2014

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 ...
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
January 13, 2014

math
a CD player currently sells for \$80. The owner of the store suggests a 9% increase in the price. What will be the new price of the player?
January 7, 2014

social studies
Which 5 American men are competing in the Skelton event of the 2014 Winter Olympics
December 3, 2013

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 and then write each ...
December 3, 2013

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 problems. C. It requires ...
November 20, 2013

math
Jim is putting up fence posts around a rectangular garden. He used 50 posts and placed them 2 feet apart. The length of the garden is 30 feet. What is the perimeter of the garden? What is the area of the garden? thanks
November 19, 2013

math
In a random sample of 150 students, 60 ride the bus to school, 54 ride in carpools and 36 walk. It is predicted there will be 800 students in school next year. How many will need bus transportation?
November 12, 2013

math
Lisa and her father stand next to each other on a sunny day. Lisa is 130 centimeters tall and her father is 200 centimeters tall. Lisa's shadow is 100 centimeters. How long is lisa's father's shadow to the nearest centimeter?
November 6, 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?
November 6, 2013

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?
October 23, 2013

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 of the compound was ...
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 of solution?
October 20, 2013

Math
Whats the answer for 0.15 divided into 0.1845
April 1, 2013

english
It is A, I just did that one on my quick check
March 12, 2013

Grammer
It is a metaphor I just did that quick check :D
March 11, 2013

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 Jupiter 2. Two...
February 19, 2013

I go to connections academy too and I hate it with a passion!!!!!! it sucks!!!!!!! but hey hi guys & thanks for the answers
October 8, 2012

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 roof. 4. You further ...
September 10, 2012

Science
Ms. Sue this is Ava will you please check my science answers that i posted
September 10, 2012

science
Ms. Sue the answer to the previous question are # 5 problem #7 hypothesis # 8 experiment and #6 data
September 10, 2012

science
#5 states a problem #7 states hypothesis #8 describes an experiment #6 contains data information
September 10, 2012

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 degrees C. 3. You ...
September 10, 2012

Science
Sponge Bob notices that his pal Gary is suffering from slimotosis, which occurs when the shell develops a nasty slime and gives off a horrible odor. His friend Patrick tells him that rubbing seaweed on the shell is the perfect cure, while Sandy says that drinking Dr. Kelp will...
September 5, 2012

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