Sunday

December 4, 2016
Total # Posts: 103,035

**Chemistry**

How many isomers are there in the following: 1. C2H4O (I was able to draw three.. Two involving a double bond and one involving a ring.) 2. C3H8O (I can only draw one..) 3. C2H4Cl (3 isomers?)

*October 12, 2016*

**maths**

A car travelled 100 km with half the distance at 40km/h and the other half as 80 km/h.Find the average speed of the car for the whole journey.

*October 12, 2016*

**Culture**

jsdn

*October 12, 2016*

**Chemistry**

How many isomers are there in the following: 1. C2H4O (I was able to draw three.. Two involving a double bond and one involving a ring.) 2. C3H8O (I can only draw one..) 3. C2H4Cl (3 isomers?)

*October 12, 2016*

**Science**

18ml

*October 12, 2016*

**English**

A little bit of background info: Myra has been bullied at school; Helen is her only friend; before she met Helen, she only hung out with her little brother; in hospital because of cancer; this scene takes place in the hospital

*October 11, 2016*

**English**

Read the following sentences from "Day of the Butterfly" "She began to unwrap the presents, with an air that not even Gladys could have bettered, folding the tissue paper and the ribbons, and drawing out books and puzzles and cutouts as if they were all prizes ...

*October 11, 2016*

**Chemistry**

Which is the electrophilic site in the molecule (CH3)2C=O? A. CH3 carbon B. CH3 hydrogen C. C=O carbon D. C=O oxygen I think the answer is D. because oxygen is electronegative and wants electrons thus making it electrophilic. Is this correct?

*October 11, 2016*

**algebra homework help**

-3+x=-x+5

*October 11, 2016*

**History**

Was Ban Zhao a feminist?

*October 11, 2016*

**i need help fast 2nd grade math**

20 8 6 nice m3m3es m8

*October 11, 2016*

**Math**

18divided by 1322

*October 11, 2016*

**math**

The number,n (in hundreds), of mosquitoes in a camping area after t weeks can be modelled by the equation n(t)=2t^4-5t^3-16t^2+45t According to this model, when will the population of mosquitoes be greater than 1800?

*October 11, 2016*

**Math**

Briana ran 6 miles in 180 minutes how many miles per minute did she run

*October 11, 2016*

**Math**

A zoo wishes to construct an aquarium in the shape of a rectangular prism such that the length is twice the width and 5m greater than the height. If the aquarium must have a volume strictly between 1125m^3 and 3000m^3, determine the restrictions on the length of the aquarium.

*October 11, 2016*

**chemistry**

why does line separating solids and liquids have a negative slope for water, while most compounds have a phase diagram with a positive slope?

*October 11, 2016*

**Social Studies**

is @ally right i need help

*October 11, 2016*

**American Government**

Who has the power to begin the process of raising taxes in the United States?

*October 11, 2016*

**biology**

water

*October 11, 2016*

**psycholog**

When Mitch was learning to drive, he couldn’t imagine how he’d ever remember to steer the wheel, flip on the turn signal, step on the gas pedal, and still manage to keep the car on the road. Now that he has been driving for three years, Mitch’s reactions have ...

*October 11, 2016*

**Algebra**

2x-5y= -3 2x+5y=4 y=mx+b -3 = 2x - 5y -2x -2x x = 5y y=mx+b 4 = 2x+5y -2x -2x 2x = 5y Is this correct?

*October 11, 2016*

**Quick Math Help**

1. yes 3. yes 4. no, 1375 5. no; first term is -8, common DIFFERENCE is 3

*October 11, 2016*

**Quick Math Help**

Find the tenth term of the sequence: -6,1,8... Is it 57? For the sequence:2,4,8,16 the value of s4 is____. Is it 8? Find the 7th term of the sequence: 1,2,4,... Is it 64? Which term of this sequence is 275? 5,10,15,... Is it 1357? Find the 7thterm of an. Arithmetic sequence ...

*October 11, 2016*

**Quick Math Help**

1. let an=4n find the sum of the first 5 terms. How would you do this? 2. a1=3; an+1=3an+18. Find a6 How would you do this? 3. You start you 30 year career at a salary of $50,000 and receive yearly raises of $1,000. How much money will you have earned, in total, over the 30 ...

*October 11, 2016*

**math**

A ball is thrown vertically into the air so that its height s after t seconds is given by the equation, s=-1/27(t^2)+4√t. Find its maximum height.

*October 11, 2016*

**English - Theme**

No

*October 11, 2016*

**spanish**

Decide if the noun-adjective agreement is CORRECT or INCORRECT in the following sentence. El chico es alto. Correct Incorrect

*October 11, 2016*

**Chemistry **

A stock solution of sulfuric acid must be diluted by adding 25.0mL of 7.50M H2SO4 to enough water to make 500mL of diluted soultion. What is the concentration of the diluted solution?

*October 10, 2016*

**Chemistry **

If 8.723 grams of sodium bicarbonate are dissolved in water to produce a 250.0mL solution, what is the morality of this solution?

*October 10, 2016*

**math**

Cabrina and Dabney are at a conference in Seattle. Cabrina drives home to Boise at an average speed of 65 mph and Dabney drives home to Portland at 50 mph. If the sum of their driving times is 11.4 hours and if the sum of the distances driven is 690 miles, determine the time ...

*October 10, 2016*

**Quick math help **

Find the sum of the first 10 positive integers Is it 110? Which term of the arithmetic sequence is 25? -2,1,4,... Is it 70? Which term of the arithmetic sequence is177? 2,9,16,... Is it 1234? Find the sum of the first 8 positive odd integers. Is it 64?

*October 10, 2016*

**Quick math help**

Find the tenth term of the sequence: -6,1,8... Is it 57? For the sequence:2,4,8,16 the value of s4 is____. Is it 8? Find the 7th term of the sequence: 1,2,4,... Is it 64? Which term of this sequence is 275? 5,10,15,... Is it 1357? Find the 7thterm of an. Arithmetic sequence ...

*October 10, 2016*

**Math**

How to make one addend to the next tens. 28 + 16 30 + 14 =34 ?

*October 10, 2016*

**statistics**

According to a survey, 21% of motorists in a large city are uninsured. Suppose that currently 21% of all motorists in this city are uninsured. Two motorists are selected at random from this city. Let x denote the number of motorists in this sample of two who are uninsured. ...

*October 10, 2016*

**organic chemistry**

Free-radical halogenation can occur with chlorine and a source of direct UV radiation or sunlight. Chlorination of 2,4-dimethylpentane via radical halogenation leads to the formation of all three of the below products. Estimate the relative percentages of each product that ...

*October 10, 2016*

**health**

Which occupation is most likely to suffer a partial or complete rotator cuff tear on the job? A teacher A plumber A doctor An electrician A baseball pitcher

*October 10, 2016*

**Math**

A bag contain marbles of three different colours red blue and yellow 2/5of the marbles are red the ratio of three number of blue marbles to the number of yellow marbles is5:7 what fraction of the marbles in the bag is blue

*October 10, 2016*

**Chemistry**

CO2(g)+CaSiO3(s)+H2O(l)→SiO2(s)+Ca(HCO3)2(aq) Balance using smallest multiples

*October 10, 2016*

**physics**

A space station in the form of a large wheel, 173 m in diameter, rotates to provide an “ar- tificial gravity” of 6 . 6 m / s 2 for people located on the outer rim. Find the rotational frequency of the wheel

*October 10, 2016*

**History**

Thank you so much!

*October 10, 2016*

**History**

*cries bc i put B for number one and not A* I got ya has the right answers :)

*October 10, 2016*

**HELP ME PLEASE I NEED HELP history**

B and C?

*October 10, 2016*

**math**

Roberto has 20 crayons 12 are red. the rest are blue and yellow. he has 2 more blue than yellow. how many blue crayons does he have?

*October 10, 2016*

**Algebra**

At 3:00 P.M., Carrie and Chad had already made 46 candles. By 5:00 p.m., the total had reached 100 candles. Assuming a constant production rate, at what time did they make their 82nd candle?

*October 10, 2016*

**Statistics **

If $3000 is invested at 3% compounded monthly how much in 9 years

*October 9, 2016*

**Hisotry**

im reporting to connexus

*October 9, 2016*

**Hisotry**

What are some similarities between humans and machines? In what ways are humans and machines different? What are some conflicts between humans and machines that have arisen in the past? What conflicts might occur in the future? Can these conflicts be resolved?

*October 9, 2016*

**Statistics **

If $3000 is invested at 3% compounded monthly how much in 9 years

*October 9, 2016*

**Maths**

A boy saves 1/8 of his weekly allowance each week, how much is his weekly allowance

*October 9, 2016*

**Chemistry**

a sample of an ionic compound is dissolved in water and the water gets colder. what is acting as the system?what is acting as the surroundings? does the heat flow from the system to the surroundings or from the surroundings to the system? is this extothermic or endothermic?...

*October 9, 2016*

**Chemistry**

a piece of metal is heated by placing it in hot oil. it is removed from the hot oil and placed into a calorimeter of cold water. the water heats up due to the transfer of heat from the metal. what happens to the temperature of the calorimeter? how is the heat that causes the ...

*October 9, 2016*

**Band**

yes.

*October 9, 2016*

**Band**

I know this seems dumb because the subject is band, but I have a real question that I need help on if there is anyone here that is in band? It is related to hw.

*October 9, 2016*

**algebra**

x-1 1 ______ = ____ 6 3

*October 9, 2016*

**Social studies**

B and C

*October 9, 2016*

**Social studies**

the answers are A C D B C

*October 9, 2016*

**Social studies**

The quiz is 1-a and c. 2 d. 3honesty and patriotism

*October 9, 2016*

**computer**

Write the pseudocode and draw the flowchart for a program that prompts the user for his/heryearly income, and outputs the amount of taxes to paybased on the yearly income.

*October 9, 2016*

**Maths**

What is the density of a block of wood with a mass of 1 gram and a volume of 2 cm3

*October 9, 2016*

**Physics **

Ade throws a ball up to a height of 10m and catches it back. What is the Displacement of the ball

*October 9, 2016*

**Chemistry **

How do you do significant figures. How dobyou do dimensional analysis

*October 9, 2016*

**physics**

A parachutist bails out and freely falls 59 m. Then the parachute opens, and thereafter she decelerates at 1.6 m/s2. She reaches the ground with a speed of 2.5 m/s. (a) How long is the parachutist in the air? (b) At what height does the fall begin?

*October 9, 2016*

**Math**

60,104

*October 9, 2016*

**chemistry**

at 127 centigrade and 1 atm pressure of a gas contains 0.3mole of nitrogen molecule, 0.2 mole of oxygen molecule.the volume of the mixture is

*October 9, 2016*

**Help ASAP**

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 marble is chosen at ...

*October 8, 2016*

**english**

Directions: Rewrite the following paragraph that features all simple sentences. Combine some of the sentences so that you will have compound and complex sentences. I kept my grandmother’s three-month-old boxer puppy for a full month. He was a constant challenge. His ...

*October 8, 2016*

**Chemistry**

Al3+ and HPO42

*October 8, 2016*

**Mathematics Help**

Giving a test to a group of students, the grades and genders are summarized below. A B C Total Male 3 15 11 29 Female 14 9 12 35 Total 17 24 23 64 If one student is chosen at random, find the probability that the student was female OR received a grade of "C". (Leave ...

*October 8, 2016*

**algebra**

Amy has set aside $150 a month for her cell phone bill. Thecost for a monthly cell phone plan is a $65 access fee plus $20 per gigabyte of data used. Which expression represents the amount of money Amy has left from her monthly budget after she pays her cell phone bill?

*October 8, 2016*

**Cards**

As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color is split into two suits of 13 cards each (clubs and spades are black and hearts and diamonds are red). Each suit is split into 13 individual cards (Ace, 2-10, Jack, Queen, and ...

*October 8, 2016*

**Physics**

half a wavelength path difference 8.4 - 1.15 = 7.25 d1^2 = 67.2^2 + 7.25^2 d1 = 67.589958 8.4^2 + 1.15 = 9.55 d2^2 = 67.2^2 + 9.55^2 d2 = 67.875198 d2 - d1 = .2852 meters which is half a wavelength so wavelength = .5705 .5705 = 330 m/s * 1/f so f = 578 Hz

*October 8, 2016*

**English**

Do you know the answers?

*October 8, 2016*

**English**

Check related questions for answers

*October 8, 2016*

**math**

Harambe

*October 8, 2016*

**Math**

Pamela is 12 years older than her brother. Last year, she was thrice as old as her brother. How old is Pamela now?

*October 8, 2016*

**Biology**

A pore whose opening is covered by a diaphragm is clearly visible. What role do the pores serve? What would be the role of the diaphragm?

*October 8, 2016*

**Math**

What is the remainder when 10 to the 99 th power is divided by 9

*October 7, 2016*

**STATISTICS**

A certain disease has an incidence rate of 0.6%. If the false negative rate is 4% and the false positive rate is 4%, compute the probability that a person who tests positive actually has the disease

*October 7, 2016*

**Physics**

11.25m/s

*October 7, 2016*

**Physics **

If a scooter has an acceleration of 2.5m/s^2 , how fast is the scooter going into the acceleration

*October 7, 2016*

**Government**

thanks bella

*October 7, 2016*

**Government**

bella is correct

*October 7, 2016*

**math answer check**

please

*October 7, 2016*

**math answer check**

14. Knowing that you use 245 KWH 7 a.m. – 7 p.m. and 165 KWH 7 p.m. – 7 a.m., answer the following questions using the chart below: Constant Usage $0.05324/KWH Daytimer (Most usage between 7 a.m. – 7 p.m.) As long as most power used is 7 a.m. – 7 p.m., then...

*October 7, 2016*

**Math**

Poop

*October 7, 2016*

**Math **

Explain how estimating the quotient helps you place the first digit in the quotient of a division problem

*October 7, 2016*

**algebra**

how many meters equal to 2kilometre

*October 7, 2016*

**Geometry **

A 12-ft-by-15-ft rectangular swimming pool has a 3-ft-wide-no-slip surface around it. What is the outer perimeter of the no-slip surface? 78 ft 78 ft^2 198 ft 198 ft^2 I've already completed it, and know the answer is 78 ft, but I don't quite understand it. I would ...

*October 7, 2016*

**Social Studies**

I need help please

*October 7, 2016*

**Social studies**

How about 2 ac

*October 7, 2016*

**physics**

An airplane accelerates down a runway at 3.33 m/s2 for 35.3 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

*October 7, 2016*

**Algebra**

A farmer wants to divide a rectangular plot into five equal strips using 648 feet of fence. (A) draw a labeled diagram of the plot. (B) find the dimensions of the plot that give the maximum area and the maximum area. (C) state why the area is a maximum

*October 7, 2016*

**Physics **

Three equal masses are suspended from a frictionless, massless pulley system, as shown. Once the system has reached equilibrium, 1) what angles will the strings make with respect to the horizontal

*October 7, 2016*

**Physics **

An object with a weight of 150 N hangs from the ceiling as shown in the figure. 1) Find the tension in each string. q1 = 60 degree and q2 = 45 degree

*October 7, 2016*

**Physics **

The figure shows an Atwood machine (a wheel suspended from the ceiling with two masses connected by a string) with m1 = 1.0 kg and m2 = 1.1 kg. If m2 descends a distance 3m from rest in 3.6 seconds. 1) what is the strength of the gravitational field, g, at this location (N.B. ...

*October 7, 2016*

**Language**

affable

*October 7, 2016*