Monday

October 24, 2016
Total # Posts: 101,294

**Math**

Nata spent $28 on 2 DVDs. At this rate,how much would 5 DVDs cost ?

*October 19, 2016*

**Chemistry**

the only unknown would be the intial temp, for the heat gained by ice water would the intial be 0 deg and final would be waterever the fianl temp of the mixture of warm and cold water

*October 18, 2016*

**Chemistry**

the ice water would lower the original temp, but im still confused on how i would use that to calculate the original temp of the water

*October 18, 2016*

**Chemistry**

your and

*October 18, 2016*

**Chemistry**

You are handed a well insulated container holding about 100ml of water at a temp between 75 deg C and 100 deg C. you are given a thermometer with a maxmimum temp of 50 deg C. create an experiment to determine the temp of the water. i am really confused on how to start this ...

*October 18, 2016*

**Matg**

At the start of a party, a bowl contains 16 pints of punch. Guests drink 10 1/4 pints. Then the host adds another 7 1/2 pints to the bowl. How much punch is in the bowl now?

*October 18, 2016*

**Algebra 1**

Benito has $6 to spend a sundae cost $3.25 Plus $0.65 per topping write and solve an inequality find how many toppings can he order.

*October 18, 2016*

**math**

Determine the exact value of the following. a) sin300 degress b) tan (-135 degrees) c)csc150 degrees d) sec45 degrees e) cos 4pi/3 f) sin (-3pi/4)

*October 18, 2016*

**math**

the point P(x, -2/3) lies on the unit circle and is in quadrant 4. a) sketch the unit circle showing the point P and the principal statndard position angel theta drawn to the terminal arm containing point P. b) determine the exact value of x. c) determine the exact value of ...

*October 18, 2016*

**math**

the point P(1/2, root 3/2) lies on the unit circle. a) sketch the unit circle showing the point P and the standard position angle theta drawn to the terminal arm containing point P. b) determine the exact values of the six trigonometric ratios of theta.

*October 18, 2016*

**Math**

Penelope has a birdhouse that is 4 9/10ft above the roof of her garage. She has a second birdhouse that is 5.36 ft below the roof of her garage. What is the distance between the birdhouses?

*October 18, 2016*

**math**

determine all co terminal angles that lie in the interval -4pi less thank or equal to theta less than or equal to 4pi, for the following angles. a) 3pi/2 b) -5pi/3

*October 18, 2016*

**math**

Which is the better buy? 2.9L of detergent for $4.56 or 3.8L for $5.78?

*October 18, 2016*

**Physics **

A jet pilot (80 kg) flies a loop-de-loop at a constant speed of 600 m/s. a) What minimum radius can the loop have so that the centripetal acceleration is no more than 6ag? b) Suppose that the pilot just happened to be sitting on a spring scale while flying the jet. What will ...

*October 18, 2016*

**Physics**

I still need help!!

*October 18, 2016*

**Physics **

A passenger on a ride at the firemen's field days sits in a chair and is swung around at the end of a cable connected to a central tower. At full speed, the cable makes an angle of 56o with the vertical, and the chair is 46 m from the pole. 1)What is the speed of the ...

*October 18, 2016*

**Physics**

A simple Atwood's machine uses two masses, m1 and m2. Starting from rest, the speed of the two masses is 7.0 m/s at the end of 3.0 s. At that instant, the kinetic energy of the system is 60 J and each mass has moved a distance of 10.5 m. Determine the values of m1 and m2.

*October 18, 2016*

**math**

The sides of a rectangle are consecutive odd integers. If the perimeter is 192 inches, what is the length of each side?

*October 18, 2016*

**Physics**

If a wave has a frequency of 10 Hertz, what does this mean? Thanks.

*October 18, 2016*

**physics**

g varies from 0 N to 70.4 N as we stretch the spring by moving one end 5.35 cm from its unstressed position. Find the force constant of the spring

*October 18, 2016*

**maths**

take 30cm from 3/4 metre

*October 18, 2016*

**maths**

£4.96 equals how many tens

*October 18, 2016*

**maths**

how many tens in2017

*October 18, 2016*

**Language Arts**

Okay, thanks. (=

*October 18, 2016*

**bmcc**

which of the following is an oxidation reduction reaction ?

*October 18, 2016*

**hunter**

how many grams of oxygen are required to burn 5.9g of C2H5OH? Molar masses: C2H5OH= 45.06 g/mole O2= 32.0 g/mole

*October 18, 2016*

**Tx History**

But, I think that the correct answer is D.

*October 18, 2016*

**Tx History**

Yes I just Double checked and they are all have correct spelling and the correct words.

*October 18, 2016*

**Tx History**

What is the best way to describe the the main problem of mission San Francisco de Los Tejas? A. There were not enough priests or missionaries to do a thorough job to convert the Hasinai. B. It took too much of a militaristic and violent approach to converting the Hasinai. C. ...

*October 18, 2016*

**social studies (NEED HELP QUICK)**

What was the effect of diversity in Darfur a. NGOs b. Apartheid c. Nationalism d. genocide my answer: c

*October 18, 2016*

**Math**

In a parallelogram abcd,if angle a =(2x+25) and angle b = (3x_5),find the value of x and the measures of each angle of the parallelogram

*October 18, 2016*

**Math**

In a parallelogram abcd,if angle a =(2x+25) and angle b = (3x_5),find the value of x and the measures of each angle of the parallelogram

*October 18, 2016*

**Math**

In a parallelogram abcd,if angle a =(2x+25) and angle b = (3x_5),find the value of x and the measures of each angle of the parallelogram

*October 18, 2016*

**social studies (NEED HELP QUICK)**

Unstable government holds back economic development most in a. Namibia b. Botswana c. Somalia d. South Africa my answer: d

*October 18, 2016*

**statistics **

A naturalist leads whale watch trips every morning in March. The number of whales seen has a Poisson distribution with a mean of 2.1 Find the probability that on a randomly selected trip, the number of whales seen is 3. Round to four decimal places.

*October 18, 2016*

**Algebra**

Z-2z+4z+6 Combine like terms Z-2z= -1z -1z+4z+6 -3z+6

*October 18, 2016*

**Social studies**

What are the real answers??

*October 18, 2016*

**Physics **

A passenger on a ride at the firemen's field days sits in a chair and is swung around at the end of a cable connected to a central tower. At full speed, the cable makes an angle of 56o with the vertical, and the chair is 46 m from the pole. 1)What is the speed of the ...

*October 18, 2016*

**Physics **

A jet pilot (80 kg) flies a loop-de-loop at a constant speed of 600 m/s. a) What minimum radius can the loop have so that the centripetal acceleration is no more than 6ag? b) Suppose that the pilot just happened to be sitting on a spring scale while flying the jet. What will ...

*October 18, 2016*

**Math**

1/50 change fraction to a decimal

*October 18, 2016*

**Chem**

1026

*October 18, 2016*

**Chem **

A gas at pressure 912 mm of hg has volume of 450 cm3 what will be volume at 0.4 atm

*October 18, 2016*

**crop physiology**

How will you prepard o.5m, 1.0m, 2m & 4.0m solution of NaCl for 100ml

*October 18, 2016*

**History**

What were some challenges that knights faced?

*October 17, 2016*

**S.S**

What does immigration mean?

*October 17, 2016*

**Math**

No problem

*October 17, 2016*

**Math**

Oh, it was ment to be 4. Sorry!!!

*October 17, 2016*

**Math**

Hmmm..... you made mistake

*October 17, 2016*

**Math**

well let's say that x=4 It would be like this: 4(3)6-5 then do this: 6-5 is 1 So, put it like this: 4(3)-1 What is 4x3? It is 12 So, its like this: 12-1 12-1 is 11 So your answer is 11

*October 17, 2016*

**Math**

what is 4x(6-5)?

*October 17, 2016*

**History**

Does anyone have a picture on how yin and yang symbol looked like in Ancient China and how it looks like now? My teacher said to draw comparisons on how different they look but I cant find a picture on how it looked like before

*October 17, 2016*

**math**

square picture frams has perimeter of (20+30)what is the length of one side of the picture

*October 17, 2016*

**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**

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*