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Posts by isabelle

Total # Posts: 99

Chemistry
How many milliliters of a 5.15 M stock solution are needed to prepare 375 mL of a solution having 7.50 mg of methanol per mL of solution?

Math
Two jugs are filled with water. If you remove 1 liter of water from the first jug, then the two jugs contain the same amount of water. If you remove 2 liters from the second, then the second jug would contain half as much as the first. How many liters of water are in the ...

Math
Let the function a@b be defined as 3a + 2b for all real numbers a and b. If u and v are real numbers for which u@v =v@u = 20, what is the value of 2u@3v?

Algebra
If a positive two-digit integer is divided by the sum of its digits, the quotient is 2 with a remainder of 2. What is the two-digit integer?

Math
The sum of three numbers is 975. If you subtract x from each of these numbers you obtain 12, 345, and 126 respectively. What is x?

Math
A rope hangs from the ceiling. It reaches the floor exactly. It's 4 feet from the wall. When it's pulled to the wall, the end of the rope is 4 inches above the floor. How high is the ceiling?

Math (check my work)
I just need help writing the equation, can someone help please?

Math (check my work)
Angle A measures (x + 13) °. Angle B is complementary to angle A and measures (2x +23) °. a. Write and solve an equation to find the value of x. Not sure how to write the equation but the value of x = 18 b. What are the measures of angle a and angle b? angle a = 31°...

Math
Eight oranges cost $1.00. How much will 5 dozen oranges cost?

physics
A cue ball (mass = 0.145 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick, which applies an impulse of +1.45 N · s to the ball. The ball then slides along the table and makes an elastic head-on collision with a second ball of ...

Math
May is swimming steadily in a pool. She completes 5 laps in 4 minutes. Joy is also swimming in the same direction and she swims 4 laps in 5 minutes. At 10 AM Joy just head of May. At 10:15 AM, how many times will May pass Joy?

English (I really need help!)
I need one more haiku for my assignment(I have already created 4, I need 5) My brain has run out of ideas! It should be about "A Lost Love"

English
I need one more haiku for my assignment(I have already created 4, I need 5) My brain has run out of ideas! It should be about "A Lost Love"

Maths
A woman is 3 times as old as her daughter.six years ago,the sum of their age was 36.find the daughter's age.

Physics
A ball is tossed straight up into the air with a velocity of 37 m/s. What is its velocity at the top of its flight?

Physics
A car travels along a straight stretch of road. It proceeds for 16.1 mi at 56 mi/h, then 24 mi at 46 mi/h, and finally 36.9 mi at 37.3 mi/h. What is the car’s average velocity during the entire trip? Answer in units of mi/h.

Geography
"As stormwater travels faster in creeks, it would enter the ocean at a faster rate, therefore, having the potential to strip away sand and erode the shoreline" Is this correct?

Math
Find all y such that the distance between the points (4, 3) and (8, y) is 11.

English
Actually, I think I got the hang of it. Nevermind. :-)

English
I have a summer reading assignment for the high school I am going to be attending. I am reading Lord of the Flies, and I have to write a 4-essay paragraph on it. They are very specific about what they want on the essay. I already have two paragraphs done, however I am stumped ...

Physics
Thank you I also said that if the roller coaster was built in real life, it would have a faster velocity, since we were told to work out velocity by: Change in potential energy + change in kinetic energy + (frictional force multiplied by distance) Is this right?

Physics
In class, we built a model of a roller coaster that would be one-hundredth of the size of the roller coaster if it were to be built in real life. On the model we built, 3.38G's were recorded. Would the amount of G-forces on the model roller coaster remain the same on the ...

Math
The width of a picnic table is 3 times its length. If the length is 5/6 yards Long, what is the area in square feet?

Chemistry
How is a 2.0 M solution of HF different from a 2.0 M solution of acetic acid? Would the two solutions have the same pH level? Why or why not? Please help!

Math
At an ice cream there there are 10 flavors of ice cream, four toppings, three types of sprinkles, and either whipped cream or chocolate sauce. How many combinations of ice cream are there? 10*4*3*2=240 combinations I think its 240 combinations but am not sure.

Art 7
ANSWERS 1.C 2.B 3.D 4.A 5.B 6.B 7.D 8.A 9.B 10.D these are the correct ones I just took it TRUST ME!!

physics please help
the potential difference across a load is 9V. explain what this means in more fundamental terms.

physics
the speed of a wave in a 4 m rope is 3.2 m/s. what is the frequency of the vibration required to produce a standing wave pattern with 1 antinode? 2 antinodes? 4 antinodes? please help!!! i don't understand how to do this

physics, how to find the height
a ball is launched at an angle to the ground with an initial speed of 65m/s. at it's maximum height it has a speed of 26m/s. determine it's maximum height.

physics, how to find the height
On the surface of a planet an object is thrown vertically upward with an initial speed of 60 m/s. use a conservation of energy approach to determine the object's speed when the object is at a quarter of it's maximum height. (assume the planet has no atmosphere) please ...

physics please help
On the surface of a planet an object is thrown vertically upward with an initial speed of 60 m/s. use a conservation of energy approach to determine the object's speed when the object is at a quarter of it's maximum height. (assume the planet has no atmosphere) PLEASE ...

physics please help
a 65 kg bag is dragged along a 12m ramp in order to get from the ground to the floor of the loading dock 2m above the ground. determine the efficiency of of the ramp. The frictional force acting on the bag is 50N due to the ramp. I don't understand how to the find the ...

physics
a 65 kg bag is dragged along a 12m ramp in order to get from the ground to the floor of the loading dock 2m above the ground. determine the efficiency of of the ramp. The frictional force acting on the bag is 50N due to the ramp. I don't understand how to the find the ...

physics
oh and frictional force acting on the bag is 50N

physics
a 65 kg bag is dragged along a 12m ramp in order to get from the ground to the floor of the loading dock 2m above the ground. determine the efficiency of of the ramp. I don't understand how to the find the energy output and input.

physics
a 7 kg ball is thrown into the air from ground level with an initial velocity of 24m/s. Determine the ball's maximum height. Use conservation of energy. help!!!

please help, math question
@reiny what did you do to get from 2x^2 + 25x - 75 = 0 to (2x - 5)(x+15) ?

please help, math question
A matte of uniform width is to be placed around a painting so that the area of the matted surface is equal to the area of the painting. If the dimensions of the painting are 15 cm and 10 cm, find the width of the matte. The answer is supposed to be 2.5 cm but I keep getting 12.5.

Math, please help
A matte of uniform width is to be placed around a painting so that the area of the matted surface is equal to the area of the painting. If the dimensions of the painting are 15 cm and 10 cm, find the width of the matte. The answer is supposed to be 2.5 cm but I keep getting 12...

physics
^^ bobpursley What formula did you use? Could you repost it using v1 and v2 as variables?

physics
Arann launches a rock into the air such that it rises 20.0 m in the first third (time wise) of its ascent to maximum height. Determine the rock's maximum height and launch speed. Determine the time(s) at which the ball is at a height of 10m. PLEASE HELP

Physics
A space craft made up of two parts with masses m1 = 2.3 kg and m2 = 3.4 kg is held together by explosive bolts against a spring. The spring is compressed by 73.0 cm and has negligible mass. After the bolts are exploded m1 is found to have a speed of 3.6 m/s away from the ...

math
Some thing times something plus 4 times something eguels 20

Math
Given that a^33 = -2p; a^74 = 26p, what is a^1?

Math
1. If one wishes to accumulate a Php 30,000-fund in 5 years, how much should he deposit now at 18% compounded quarterly? 2. If a bank offers a rate of 4.5% compounded semiannually, how much should you deposit to accumulate Php 50,000 in 15 years 3. Suppose that a particular ...

Geometry
2.Given two segments with lengths x and y (x does not equal y), which three special parallelograms meet the three sets of given conditions? a. One diagonal has length x, the other has length y. b. The diagonals intersect at right angles. c. Both diagonals have length y and do ...

Geometry
What type of quadrilateral is formed by connecting the points (0,0), (3x,b), (18x,b), and (15x,0)? How would I solve this?

math
can you me the answer from fraction must be in simplest form!!!!

Physics
A 100 g mass is attached and wrapped around an apparatus at a constant radius of 10 cm. The hanging mass is dropped and obtains a speed of 0.2 m/s after 1 m. Using energy considerations, what is the moment of inertia of the apparatus?

social studies check answers
Kyle is right I got 100%

Social studies***help***
I don't this and the correct answers are1. C 2.a 3.b

English II - Concluding an essay!!!
Thank you this really helped!!

English II - Concluding an essay!!!
Hi, I really need help concluding my essay on Othello. My thesis is: The worldly Emilia and Bianca create a strong contrast against the virtuous and innocent Desdemona, reinforcing the tragedy of her death and Othello's crime. What I have for my conclusion is: In ...

science
Create a diamante poem about acids and bases.

Math
I don't understand where 900 comes from...

science
THE PILOT OF AN AIRPLAINE TRAVELING WITH A HORIZONTAL SPEED OF 70 M/S TO DROP RESCUE SUPPLIES TO PHYSICS STUDENTS STRANDED ON AN ISLAND 240M BELOW. sOLVE FOR HORIZONTAL DISPLACEMENT.

geometry
ANSWERS: B C D A C B B By the way if you call someone a cheater from conexus you are also a cheater by looking up the answers how else did you come on this page were all cheaters face it if you didn't feel like doing your work i don't judge you if we had a chance to ...

Chemistry
Would water-insoluble alcohols, like 1-octanol, be soluble in aqueuous NaOH?

math
The answer is 30/50 and that made smaller is 3/5 so your answer is 3/5

Math
I'm in 5th grade and here's my question: I have to write which fraction represents the ratio of corresponding sides? There are 2 triangles. One triangle has the measurements 3in., 9in. and 6in. The other triangle is 18in., 54in. and 36in. Thank you.

chemistry
plug what into where? my teacher hasn't explained anything relating to this problem so I have no idea what to do.

chemistry
I don't know how to solve it

chemistry
The Clapeyron-Clausisus Equation is ln(P2/P1) = dHvap/R [(1/T1)-(1/T2)]. Assuming that dHvap doesn't change with the temperature, this equation relates the change in vapor pressure and temperature to a substances enthalpy of vaporization (R is the molar gas constant). Use ...

chemistry
i don't know how to clarify the question. That's how it is on my paper.

chemistry
calculate the water vapor pressure of benzene at 0.80, 0.60, 0,40, and 0.20 mole fraction and toluene at 0.20, 0.40, 0.60, and 0.80 mole fraction.

Spanish
I have to compare two activites-like one is more interesting, or more fun, etc; Did I do it correctly-thank you for checking this- Tocar la piano es más divertido que tocar la guitarra. Montar a caballo es más interesante que caminar el gato. Cantar es menos fac&...

5th Grade Math
this input and output is not making any sense

physics
Which statements are true for the resistivity of a metal conductor: It depends on the temperature of the material. It becomes smaller as the cross-sectional area of the material becomes smaller. It is positive for copper but negative for carbon. It has units of ohms/meter. It ...

Math
If the square root of a number is an integer, the number is called a perfect square. one example of a perfect square is a.) 50 or b.) 81

Astronomy
We can calculate the kinetic energy of any moving object with a very simple formula: kinetic energy = 1/2 mv^2 ,where m is the object's mass and v is its velocity or speed. Table Energy Comparisons shows that metabolizing a candy bar releases about 10^6 joules. A- How fast...

7th grade
What is a good definition of mercantilism? I don't understand when all the definitions talk about economic systems of national wealth. Thank you!

7th grade
You can get this if you concentrate on the last part that reads: *6. What's the ONLY number times 6 that will equal six? One. So (6+6)/(6+6) * 6 = 6 = 12 / 12 * 6 = 6 = 1 * 6 = 6

French
toi / la / aimer / la / moi / fête / mieux / et / nous / faire i am supposed to unscramble and conjugate these and make a sentence i cant figure one out that makes sense

9th grade
A person standing on Mars would weigh 38% of his earth weight. What is the Mars weight of a person with an earth weight of 55 kilograms?

trig
how come you get different answers if you take different paths in trigonometry? (when you choose to use sin, cos or tan)

reading and language
examples of propoganda

geometry
what is the surface area of a box, that has the length of 15 in , a width of 8 in . and a height of 3 in.

Geography
so the answer is d. bc the development of housing and businesses.

Geography
migration quota: a policy of limiting the number of minority group members in a business firm, school, etc. push-pull factors: Push and pull factors are those factors which either forcefully push people into migration or attract them. A push factor is forceful, and a factor ...

Business Statistics
continuos

Earth Science
Fault

math
733 333 333

math
how do u know?

math
is 1 a composite number or a prime number?

Math
steph???

art
thank you

art
i don't understand how rhythm of principles of design works, either

art
thank you so much gurublue. you have helped me many times. thanks.

art
what is the difference between unity and emphasis?

science
i think so

6th Grade Math
Thanks so much! :)

6th Grade Math
I don't really understand the rules for adding and subtracting integers. Can someone explain them to me?

English----Writing
I have an English project I am currently working on that focuses on the novel "Animal Farm" by George Orwell. My team and I are writing a revolutionary newspaper that would have been printed on the farm in order to turn, (or at least attempt to turn) the others ...

FRENCH
Both "Un jour, je ferai un voyage en France" and "Je vais faire un voyage en France cet été" (Replace "en été" with "cet été" in you're speaking about the summer to come) ("En" ...

4TH GRADE URGENT LATE MATH HOMEWORK!!!!
Thanks!!!!!!!!!!!!!!!!!!!

4TH GRADE URGENT LATE MATH HOMEWORK!!!!
What shape has the same number of vertices as faces? Thanks!

accounting
What are the amounts?

algebra
Thanks but this doesnt really help me answer my question.

algebra
Superman the Escape in CAlifornia is the fastest roller coaster in the world. Riders fall 415 feet in 7 seconds. Speeds reach a maximum of 100 miles per hour. If x represents the average rate of fall of the roller coaster, write an expression to represent the situation. (Hint...

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