Monday

January 16, 2017
Total # Posts: 104,564

**social science**

Why is there uncertainty about the first explorers of America?

*October 17, 2016*

**math**

It takes Ashley 8 hours to kayak 18 km up river and 18 km back down the river. if the river is flowing at 3 km/h, how fast did she puddle assuming she paddled at a constant speed?

*October 17, 2016*

**math**

A closed-topped cylindrical tin can is to be made with a volume of 25 cm ^3. a) Determine a function to model the height h, of a can in terms of the radius, r. b) Determine a function to model the surface area A, of the can in terms of the radius, r. c) What is an appropriate ...

*October 17, 2016*

**Geometry**

The measure of angle 2 is 20 less than one third the measure of its supplementary angle 1. Find the measure of the angles

*October 17, 2016*

**math**

thank you for answering the question but I don't understand how you got 10+5x?

*October 17, 2016*

**math**

Gregg has made 40% of his free-throw shots, after attempting 20 shots at a free-throw competition. How many more consecutive shots must he make in order to increase his percentage to 50%?

*October 17, 2016*

**6th Grade Math**

Estimate a range for each sum. 7.8+31.39+6.95 How do I estimate a range??

*October 17, 2016*

**Home Economics**

List three careers for each Branches of Home Economics

*October 17, 2016*

**math**

Which is the better buy? Twelve 710mL bottles of water for $6.60 or twenty-four 500mL bottles for $9.18

*October 17, 2016*

**maths need steve**

The sum of 3 numbers is 4, the sum of their product is 5 Find the sum of their cube if the product of there number is 6

*October 17, 2016*

**Quick english help**

what moral does malcolm still state when he realizes that his last hope in the prophecies is gone act 5 scene 6-7

*October 17, 2016*

**history**

I changed it to B after I read again

*October 17, 2016*

**history**

a few states agreed to ratify the constitution only if what condition was met? A.George Washington will be elected president*** B.a bill of rights will be added C.the federalist government would maintain complete power D.no new states would enter the union

*October 17, 2016*

**history**

which of he following excerpts from article I of the constitution reflects the results of the great compromise a. article 1 section 2 clause 3 b. article 1 section 1 c. article 1 section 2 clause 5 d. article 1 section 2 clause 4 is the answer b?

*October 17, 2016*

**history**

can I get help with the connections academy unit 3 test please its on the American revolution and what happened after (links and stuff to get info)

*October 17, 2016*

**Linear equation**

When mona was born her father was 25years old What will be the linear equation

*October 17, 2016*

**Math**

there are 50 animals on a farm,24% of them are pigs, 30% are cows and the remaining are sheep. what is the percentage of the total number of cows and pigs to that of the sheep?

*October 17, 2016*

**history**

I asked to check the work not to cheat give me links or something that's all obviously I asked for help

*October 17, 2016*

**history**

if you go to connections academy can you help too?

*October 17, 2016*

**history**

which of the following was a law established by the northwest ordinance? A.only territories with a population of at least 60,000 can apply for state hold B.the education would be paid for by the central government. C.anyone who escapes slavery would be guaranteed freedom D.new...

*October 17, 2016*

**Chemistry**

A solution of potassium permanganate (KMnO4) was standardised by titrating with 0.1908 g of Na2C2O4 dissolved in 50 cm3 of acidified water. The endpoint was reached after 24.50 cm3 of solution had been added. Calculate the molar concentration of KMnO4 in the solution.

*October 17, 2016*

**Chemistry**

A solution of potassium permanganate (KMnO4) was standardised by titrating with 0.1908 g of Na2C2O4 dissolved in 50 cm3 of acidified water. The endpoint was reached after 24.50 cm3 of solution had been added. Calculate the molar concentration of KMnO4 in the solution.

*October 17, 2016*

**physics**

Which of the following statements is false regarding the ‘drift’ of charge carriers?

*October 17, 2016*

**math**

In a class of 150 students 70 passed in verbal and 90 passed in aptitude.10 failed in both the subject.how many students passed in both subject

*October 16, 2016*

**Calculus**

Suppose f(x) and g(x) are functions of x differentiable at x = 4. Given that f(4) = 3, f'(4) = -2, g(4) = 6, g'(4) = -5, find the value of each of the following. a. Derivative of f(x) * g(x) My answer: -27 b. Derivative of (f(x))/(g(x)) My answer: 1/12 c. Derivative of...

*October 16, 2016*

**Ela**

1) tank 50 deep 2)discharge pump will empty tank at 250 gallons per minit 3)tank will at 100 gallons per minit 4)2-floats will contor (m1) to fill tank set at 25feet 42feet 5)a float is set at 10feet for shut off for discharge pump 6)install pressure switch to prevent ...

*October 16, 2016*

**chemistry help**

l=75

*October 16, 2016*

**chemistry help**

Chlorine has two Isotopes with mass number of 35&37.if the relative atomic mass is 35.5, find the percent abudance of Cl-35(isotope with mass number 35)

*October 16, 2016*

**math**

4*10 = 40 assuming no interest and he started with zero

*October 16, 2016*

**algebra**

5 b + s = 192 b + s = 56 so s = 56-b 5 b + 56 - b = 192 4 b = 136 b = 34 s = 22

*October 16, 2016*

**Science**

500 * 9.81 * h = 20,000

*October 16, 2016*

**Chemistry**

what is the energy if a photon of red light that has a wavelength of 8.90x10^-7

*October 16, 2016*

**Physics**

T1 cos 28 = T2 cos 16 (no net horizontal force) T1 + T2 = 46 for vertical equilibrium

*October 16, 2016*

**Physics**

1 second each way d = v *(1second) where v = speed of sound maybe around 340 meters/second so I guess around 340 meters so what was the problem?

*October 16, 2016*

**physics**

its one end is close so we will cosider it as closed or open i mean we have to apply the closed formula or open one

*October 16, 2016*

**physicsI guess thetube is a quarter wavelength long**

T = 0.50*4/340 do f = 1/T = 340/2 = 170 Hz

*October 16, 2016*

**Math**

In a school there are 7 girls to every 5 boys.If there are 120 more girls than boys.How many pupils are there in tge school?

*October 16, 2016*

**MATH**

During the 1st year at university, Erica¡¦s father had been sending her $1,000 per month for incidental expenses.Starting from the 2nd academic year, her father decided instead to make a deposit into a savings account on August 1st every year so that Erica could ...

*October 16, 2016*

**calculus**

5.In a certain state the maximum speed permitted on freeways is 65 km/h and the minimum speed is 40 km/h. The fine for violating these limits is Rs.15 for every kilometer per hour above the maximum speed or below the minimum speed. Express the amount of the fine as a function ...

*October 16, 2016*

**physics**

A car travelled 7km40degree west of north and then 10km east.what is the resultant displacement using scale drawing

*October 16, 2016*

**chemistry**

Zinc react with diluted sulfuric acid to give hydrogen but silver doesn't explain?

*October 16, 2016*

**Calculus**

I'm sorry, g'(x) = -5.

*October 15, 2016*

**Calculus**

Suppose f(x) and g(x) are functions of x differentiable at x = 4. Given that f(4) = 3, f'(4) = -2, g(4) = 6, g'(4) = -4, find the value of each of the following. a. Derivative of f(x) * g(x) My answer: -27 b. Derivative of (f(x))/(g(x)) My answer: 1/12 c. Derivative of...

*October 15, 2016*

**History**

Yup there correct!!

*October 15, 2016*

**History**

are u sure?

*October 15, 2016*

**History**

1. C 2. A 3. A 4. C 5. B 6. B 7. D 8. A 9. A 10. D 11. A, C 12. A, C Theses are the correct choices. I just finished the test

*October 15, 2016*

**History**

Did you ever get the answer to this?

*October 15, 2016*

**Science**

Zn2+ cl- = zn×1 cl×2 =zncl2

*October 15, 2016*

**Adv functions**

Find the linear to linear function f(x) satisfying the given requirements: f(10)=20, f(30)=25, and the graph of f(c) has y=30 as its horizontal asymptote

*October 15, 2016*

**physics**

A body is thrown at an angle 30 to the horizontal with the velocity of 30m/s.After 1 second,its velocity will be

*October 15, 2016*

**maths sequence**

i reposted these because i don notn know what u mean by ur very last step 4th polynomial something

*October 15, 2016*

**maths sequence**

if the sequence is 2,15,52,125,246.... find the nth term expression and sum of the nth terms

*October 15, 2016*

**math (Reiny please help)**

That is why it is so confusing. As I understand, there are 14 songs in total. The album should be formed from those songs and at least 1 rock song and 1 country song should be used.

*October 15, 2016*

**math (Reiny please help)**

There are 5 Rock songs, 6 country songs and 3 hip-hop songs. How many different albums can be formed using the songs if the albums should contain at least 1 Rock song and 1 Country song? My solution: total number of songs is 5!6!3!=518,400 the number of different albums is ...

*October 15, 2016*

**math (Reiny please help)**

Thank you so much for your help.

*October 15, 2016*

**math (Reiny please help)**

There are 15 available toppings and 5 different pizza sizes in a pizza restaurant. If Maria wants to order a 4-topping pizza, how many different pizzas could she order? My solution: 15C4/5! 4 topping 15C4=1365 Is this correct? Thank you.

*October 15, 2016*

**Math**

The function f is such that f(x) = a^2x^2 - ax + 3b for x<=(1/2a), where a and b are constants. 1) For the case where f(-2) = 4a^2 - b +8 and f(-3) = 7a^2 - b + 14, find the possible values of a and b. 2) For the case where a = 1 and b = -1, find an expression for inverse f...

*October 15, 2016*

**qmds**

i don't know

*October 15, 2016*

**qmds**

During the 1st year at university, Erica¡¦s father had been sending her $1,000 per month for incidental expenses.Starting from the 2nd academic year, her father decided instead to make a deposit into a savings account on August 1st every year so that Erica could ...

*October 15, 2016*

**maths-sequence need help**

if the sequence is 2,15,52,125,246.... find the nth term expression and sum of the nth terms

*October 15, 2016*

**math**

Rainfall for August in Fiji averages 11" according to World Travel Guide. This year it rained 2% less. How many inches did it rain this year?

*October 15, 2016*

**Math**

The denominator of a fraction is 2, more than twice the numerator. If 7 is added to both the numerator and the denominator the new fraction would be equivalent to 2/3. Determine fhe original fraction.

*October 14, 2016*

**math (Reiny please help)**

There are 15 available toppings and 5 different pizza sizes in a pizza restaurant. If Maria wants to order a 4-topping pizza, how many different pizzas could she order? My solution: 15C4/5! 4 topping 15C4=1365 Is this correct? Thank you.

*October 14, 2016*

**math (Reiny please help)**

There are 5 rock songs, 6 country songs, and 3 hip-hop songs. How many different albums can be formed using the songs if the album should contain at least 1 rock song and 1 country song? My solution: total number of songs is 5!x6!x3! Number of different albums is 5x6x14C3 Is ...

*October 14, 2016*

**TURNER**

SUPPOSE PAYMENT WHERE MADE AT THE END OF EACH MONTH INTO AN ORDINARY ANNUNITY INTEREST AT THE RATE OF 4.5%/YEAR COMPOUNDED MONTHLY. IF THE FUTURE VALUE OF THE ANNUNITY AFTER 13 YEARS IS $65,000 WHAT WAS THE SIZE OF EACH PAYMENT

*October 14, 2016*

**Social Studies PLEASE HELP ME**

you know what? f.u.c.k. ms. sue and writeacher b.i.t.c.h.e.s.

*October 14, 2016*

**Social Studies PLEASE HELP ME**

Ms.Sue, you are literally the most hypocritical person ever? How would you have found this unless you were trying to cheat?

*October 14, 2016*

**Social Studies PLEASE HELP ME**

maybe you could s.u.c.k. m.y. d.i.c.k. ms. sue

*October 14, 2016*

**Math**

Thank you Steve, for helping me know how to figure this out.

*October 14, 2016*

**Math**

Define a variable and write and inequality for the statement: In order to earn credit for your Alegebra 1A course, you must earn at least a 70%. I'm not really sure how to answer this if someone can please help me step by step to figure this out. Thank You

*October 14, 2016*

**Math**

The scale on a map of Canada is 1: 8000000. The distance from Prince George, B.C., to Fredericton, N.B., is 5320 km. What is the distance between these 2 places on this map?

*October 14, 2016*

**math check answers**

1.B 2.A

*October 14, 2016*

**math check answers**

1. A surplus is _____. (1 point) when you spend more than you have in income when you spend less than you have in income when you spend the same&...

*October 14, 2016*

**Physics**

Is the net force 110 N?

*October 14, 2016*

**Physics**

I have a picture of one person pushing a boulder with 60 N and another person pushing from the same side at 90 N. The friction of the boulder is 40 N. The question asks to find the total force on the boulder. Is "total force" just the net force in this case or ...

*October 14, 2016*

**wORLD HISTORY**

Did u get the answers for this test?

*October 14, 2016*

**wORLD HISTORY**

wow so wth is the answer????

*October 14, 2016*

**wORLD HISTORY**

Write Teacher How are you helping you Told him Probably on one of his Questions then you won't help him with his first question that messed up

*October 14, 2016*

**Math**

45+5=50

*October 14, 2016*

**Math**

In Buffalo, New York, the temperature was 14°F in the morning. If the temperature increased 8°F, what is the temperature now?

*October 14, 2016*

**Math**

In Buffalo, New York, the temperature was 14°F in the morning. If the temperature increased 8°F, what is the temperature now?

*October 14, 2016*

**math**

There are 5 rock songs, 6 country songs, and 3 hip-hop songs. How many different albums can be formed using the songs if the album should contain at least 1 rock song and 1 country song? My solution: 14C5x14C6x14C3-5C1x6C1 Is this correct? Thanks in advance

*October 14, 2016*

**Physics**

What is the centripetal acceleration of an automobile driving at 40 km/h on a circular track of radius 20m? Help ASAP please!!!

*October 13, 2016*

**Physics**

A mover finds that a 20 kg crate initially at rest requires a 75 N horizontal force to set the crate in motion, but only a 60 N force to maintain a constant velocity. Find a) the co-efficient of static friction between crate and floor. b) the co-efficient of kinetic friction ...

*October 13, 2016*

**chemistry**

After the suction filtration, the filtrate in the suction flask contains (among other things) some dissolved product, which had failed to crystallize. Could you process this filtrate to obtain a sample of the product? Explain. Would the second crop of crystals be as pure as ...

*October 13, 2016*

**maths**

20cm

*October 13, 2016*

**math**

e)5C3x6C2+5C4x6C1+5C5 is this correct Thank you very much

*October 13, 2016*

**math**

The Infinity Club consists of 5 boys and 6 girls. How many working groups of 5 people can be formed with: a)no restrictions (my answer is 11C5) b)all boys (is this correct 5C5) c)all girls (my answer 6C5) d)more girls than boys (answer 6C4x5C1 +6C3x5C2)? e)more boys than girls...

*October 13, 2016*

**math**

In how many ways the letters in BIOENGINEERING be arranged if B must not be next to the O. Thanks in advance (is this correct answer 14!-(13!x2!)

*October 13, 2016*

**Reading**

explain how fear is different from a phobia

*October 13, 2016*

**Algebra**

0.04^(3-sqrt(3x+2))=25*5^(sqrt(3x+2)) Please help ASAP

*October 13, 2016*

**math**

Amy is catching a flight for London at 12:00 noon. Prior to leaving for the airport, she needs to allow 30 minutes for a shower and 30 minutes to finish packing last minute items. She also needs to give herself 1 hour to drive to the airport. If she needs to arrive for her ...

*October 13, 2016*

**math**

There was a total of $548 collected for tickets to the school play. The adult tickets cost $6, and the student tickets cost $4. If 12 more student tickets were sold than adult tickets, find the numbers of adult and student tickets sold.

*October 13, 2016*

**Physics**

What is the answer and how do you get that answer?

*October 13, 2016*

**Physics**

What minimum force is required to drag a crate (m = 40 kg) across a floor (co-efficient of kinetic friction = 0.6) if the force is applied at a 45 degree angle upward from the horizontal? Help ASAP please!!

*October 13, 2016*

**Math**

Two cars leave the same place at the same time and travel in the same direction. One car is traveling at 65 mph, and the other car is traveling at 50 mph. How long will it take for the two cars to be 97.5 miles apart

*October 13, 2016*

**Math**

6 fractions between 1//2 and 6/7

*October 13, 2016*

**physics**

An airplane travels 250 km/h due West for 2 hours. Its average velocity is:

*October 13, 2016*

**My Answer was wrong?**

Tickets for a raffle cosr $ $14. There were 834 tickets sold. One ticket will be randomly selected as the winner, and that person wins $ $1200 and also the person is given back the cost of the ticket. For someone who buys a ticket, what is the Expected Value (the mean of the ...

*October 13, 2016*

**Physics**

The answer is within the question you just have to extract it out like chemistry !

*October 13, 2016*