Wednesday

January 18, 2017
Total # Posts: 104,080

**Quick English help**

what real complication does lady macbeth come aware of act 2 scene 2? This is in the story of Macbeth

*October 2, 2016*

**Chemistry**

What specific evidence from the gold foil experiement led Rutherford to come to each of the following conclusions? The nucleus occupies very little space in the atom. Answer:He shot alpha particles through thin sheet of gold and discovered some were deflected An atom is made ...

*October 2, 2016*

**Physics**

I still need help! ASAP please!

*October 2, 2016*

**Physics**

A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. 1) What force will the smaller magnet exert on the larger magnet? Please show step by step including the right equations for this problem

*October 2, 2016*

**Physics**

What net force F will accelerate a 0.5 kg mass at 4 m/s2? If this same net force were applied to a 20 kg mass, what would its acceleration be? Please show me step by step including the right equations

*October 2, 2016*

**Probability**

A certain disease has an incidence rate of 0.6%. If the false negative rate is 5% and the false positive rate is 2%, compute the probability that a person who tests positive actually has the disease.

*October 2, 2016*

**Social Studies**

@ teacher LoL! I hate and love when people are like "OH I AM YOUR TEACHER AND I WILL FAIL YOU!" How do you even know who Hello is. @wow I agree! I mean its just some stupid kid

*October 2, 2016*

**Math**

determine the value(s) of k which a quadratic equation x^2+kx+9=0 will have. a) two equal real roots b) 2 distinct roots I tried to find the discriminant but couldn't get the right answer

*October 2, 2016*

**Math**

Consider the function g(x)=e^(2x+4) −4. Giving your answer in interval notation, find the domain of g^(−1)(x).

*October 2, 2016*

**math**

A circular pizza has a radius of x cm. a.write an expression for the area of the pizza? b write an expression for the area of a pizza with radius that is 5 cm greater c. How much greater is the second area? write the difference as a simplified expression?

*October 2, 2016*

**Data Probability**

A certain virus infects one in every 300 people. A test used to detect the virus in a person is positive 80% of the time if the person has the virus and 5% of the time if the person does not have the virus. (This 5% result is called a false positive.) Let A be the event "...

*October 2, 2016*

**Math wok**

A large cooler contains the following drinks: 11 lemonades, 6 Sprites, 14 Cokes, and 7 root beers. You randomly pick two cans, one at a time (without replacement). Compute the following probabilities. What is the probability that you get either two root beers or two lemonades...

*October 2, 2016*

**Math 😢😢😢😢😢 Help**

Thanks I found my answer of 10/703

*October 2, 2016*

**Digits**

You pick 2 digits (0-9) at random without replacement, and write them in the order picked. What is the probability that you have written the first 2 digits of your phone number? Assume there are no repeats of digits in your phone number. Give your answer as a fraction.

*October 2, 2016*

**Finite math and probability**

A jar contains 9 red marbles numbered 1 to 9 and 7 blue marbles numbered 1 to 7. A marble is drawn at random from the jar. Find the probability that the marble is blue or even-numbered. I had 1/7

*October 2, 2016*

**Princeple of color**

What is the direct complete of red

*October 2, 2016*

**principles of color**

The purpose of graying a graying a color is to

*October 2, 2016*

**principles of color**

The purpose of grating a color is to

*October 2, 2016*

**interor decoration**

The word red describes the of a color

*October 1, 2016*

**Interior decoration**

The purpose of fraying a color is to

*October 1, 2016*

**Chemistry**

A handbook gives the heat of combustion of liquid carbon disulfide as -3.42 kcal/g of the liquid. Write the equation representing the combustion of 1 mol of carbon disufide and the accompanying ΔH value. (hint: the sulfur containing combustion product is sulfur dioxide).

*October 1, 2016*

**Marbles**

A jar contains 9 red marbles numbered 1 to 9 and 7 blue marbles numbered 1 to 7. A marble is drawn at random from the jar. Find the probability that the marble is blue or even-numbered.

*October 1, 2016*

**Marbles**

A jar contains 9 red marbles numbered 1 to 9 and 7 blue marbles numbered 1 to 7. A marble is drawn at random from the jar. Find the probability that the marble is blue or even-numbered.

*October 1, 2016*

**Math**

Can I see the work?

*October 1, 2016*

**Math**

3) Erik wants to form 4-digit integers using only the digits 1, 2, 3, and 4. He is allowed to repeat digits. What is the probability that he forms a 4-digit integer where at least one digit repeats? Express your answer as a common fraction.

*October 1, 2016*

**Spades**

If you randomly select a card from a well-shuffled standard deck of 52 cards, what is the probability that the card you select is a spade or 6? (Your answer must be in the form of a reduced fraction.)

*October 1, 2016*

**Cards**

Thanks

*October 1, 2016*

**Cards**

If you randomly select a card from a well-shuffled standard deck of 52 cards, what is the probability that the card you select is a club or 5? (Your answer must be in the form of a reduced fraction.)

*October 1, 2016*

**chem**

ive tried the ice method but i keep on getting it wrong please help. If the initial pressure of NH3(g) is 3.168 atm, calculate the % decomposition of NH3(g) when the reaction comes to equilibrium according to the balanced equation. The value of Kp at 427.0 °C is 12800.00. ...

*October 1, 2016*

**Is my answer correct tutors**

A bag of 7 blue marbles, 8 green marbles, 9 yellow marbles. If one marble is drawn from the bag but not replaced, what is the probability of drawing a blue marble then a yellow marble? My answer is: 7/24 * 9/23 = 63/552 = 21/184

*October 1, 2016*

**Math Idk?**

7/10

*October 1, 2016*

**Math Idk?**

In a number guessing game. You ask a person to guess a number from one 1 to 10. If the person makes a random guess, what is the probability their guess will be less than 8?

*October 1, 2016*

**Math (Condensing logarithmic expression)**

ln ( a ^ n ) = n * ln a So: 2 ln 5 = ln ( 5 ^ 2 ) = ln 25 Now: 3 [ ( ln x ) - 2 ln ( x ^ 2 + 1 ) ] + 2 ln 5 = 3 [ ( ln x ) - 2 ln ( x ^ 2 + 1 ) ] + ln 25 = 3 * ( ln x ) - 3 * 2 ln ( x ^ 2 + 1 ) + ln 25 = 3 ( ln x ) - 6 ln ( x ^ 2 + 1 ) + ln 25 _________________________________...

*October 1, 2016*

**Math Help!**

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 4 17 20 41 Female 15 7 19 41 Total 19 24 39 82 If one student is chosen at random, Find the probability that the student did NOT get an "B"

*October 1, 2016*

**physics**

A high-speed drill rotating ccw at 2300 rpm comes to a halt in 2.9 s .

*October 1, 2016*

**Math Algrebra**

Please Help! I don't know what the equation is and Google isn't helping!!! Please tell me the equation and how you could get the answer of each? 1) A student is the 35th counted from the front end and the 40th counted from the back end. How many students are in a line...

*October 1, 2016*

**English**

What is one way that “The Maori: Genealogies and Origins in New Zealand” contrasts with “The Raven and the First Men: The Beginnings of the Haida”?

*October 1, 2016*

**Physics**

Entrance and exit ramps for freeways are often circular stretches of road. As you go around one at a constant speed you will experience a constant execrations. Suppose you drive through an entrance ramp at a modest acceleration 3.0 m/s^2. What will the acceleration be if you ...

*October 1, 2016*

**math**

approximate all zeros and extrema to the nearest hundredth. how many zeros, if any, are imaginary. -x^4+2x^2+x-4. Are there no zeros?

*October 1, 2016*

**History**

Why wernt Muslims able to conquer most of Europe

*October 1, 2016*

**school**

An Australian emu is running due north in a straight line at a speed of 13.0 m/s and slows down to a speed of 11.0 m/s in 2.40 s. (a) What is the magnitude and direction of the bird’s acceleration? (b) Assuming that the acceleration remains the same, what is the bird’...

*October 1, 2016*

**maths**

solve the initial value problem of the differential equation (y+sqrt(x^2+y^2))dx-xdy=0,y(3)=4

*October 1, 2016*

**Probability**

2995/10000

*October 1, 2016*

**Probability**

Compute the probability of randomly drawing five cards from a deck and getting 3 Aces and 2 Kings. (Give your answer as a fraction.)

*October 1, 2016*

**Probability**

Compute the probability of randomly drawing five cards from a deck and getting 3 Aces and 2 Kings. (Give your answer as a fraction.)

*October 1, 2016*

**Math Help!**

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 17 5 2 24 Female 7 11 12 30 Total 24 16 14 54 If one student was chosen at random, find the probability that the student was female.

*October 1, 2016*

**Math Help!**

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 17 5 2 24 Female 7 11 12 30 Total 24 16 14 54 If one student was chosen at random, find the probability that the student was female.

*October 1, 2016*

**physics**

The propeller of a plane rotate clockwise at 26900 rpm. What is the angular acceleration (in rad/s2) of the propeller if it takes 8.00 s to come to a standstill?

*September 30, 2016*

**Math**

0.080062991

*September 30, 2016*

**Math**

Find all numbers $r$ for which the system of congruences: x == r mod 6 x == 9 mod 20 x == 4 mod 45 has a solution.

*September 30, 2016*

**Music**

f or e both would be correct

*September 30, 2016*

**Maths,fractions**

A group of friends went to a coffee shop. 2/5 bought coffee 1/3 bought tea 4/15 bought cake What is the smallest posible number of people in the group?

*September 30, 2016*

**Is it possible if you guys can check my algebra HW**

Bag 1 =40 Bag 3 =80

*September 30, 2016*

**math**

7 teams

*September 30, 2016*

**English**

People does anyone know if this is right?

*September 30, 2016*

**Math**

In an hour

*September 30, 2016*

**history**

is number 10 b and 11 b and d

*September 30, 2016*

**math**

At what rate of interest should Php18,000 be invested so that it will earn Php2,500 at the end of 504 days?

*September 30, 2016*

**math**

formulate problem and solution Given: Time taken by light to travel 1 meter is roughly 3×10 raise to negative 8 seconds

*September 30, 2016*

**Calculus**

What type of discontinuity is this? f(x) = 2x+8,x<4 and x^2,x>4 I think it's a point discontinuity.

*September 30, 2016*

**maths**

the ratio of the difference obtained by subtracting 2 from thrice a number to the sum of twice the same number and 5 is13:15.what is the number?

*September 30, 2016*

**Science**

Also, y is the height of the hole in the window and x is the distance from the front of the building to the bullet.

*September 29, 2016*

**Science**

From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.44 m, and x = 6.8 m.) Using ...

*September 29, 2016*

**Quick Economics help**

What type of economy has the same wages regardless of work?

*September 29, 2016*

**Science**

From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.44 m, and x = 6.8 m.) Using ...

*September 29, 2016*

**American Government**

How does the president limit the legislative powers of congress

*September 29, 2016*

**Quick Economics help**

What is necessary for population growth?

*September 29, 2016*

**Math**

farmer bill has 28 chickens, 15 ducks, and 7 turkeys. he sold 4/5 of the birds. if he sold 12 chickens, what fraction of the chickens are left

*September 29, 2016*

**Math**

A number is 830 when rounded off to the nearest tenth.what is the greatest possible value of the number

*September 29, 2016*

**math**

A large rectangle has an area of 28 square units. It has been divided into two smaller rectangles. One of the smaller rectangles has an area of 4 square units. What are possible whole-number dimensions of the large rectangle? Justify your reasoning.

*September 29, 2016*

**Social studies**

This is actually wrong the answer is A I just took the assessment.

*September 29, 2016*

**math**

1.A line segment on a number line has its endpoints at -9 and 6 find the coordinate of the midpoint of the segment. Answer choices are A.1.5 B.-1.5 C.2 D.-3 2.find the coordinate of the midpoint of HX given that H(-1,3) and X(7,-1). Answer choices A.3,1 B.0,4 C.-3,1 D.-4,0 3....

*September 29, 2016*

**Science (check my answers)**

C

*September 29, 2016*

**Physics**

An object is thrown at 30 m/s and at a 40 degree angle. What is the range of the object, given that the ground is horizontal and flat? I'm not sure whether to use (vi^2sin2x)/g or x = Vh*t.

*September 29, 2016*

**Physical science**

A golfer on a level fairway hits a ball at an angle of 42* to the horizontal that travels 100 yd before striking the ground. He then hits another ball from the same spot with the same speed, but at a different angle. This ball also travels 100 yd. At what angle was the second ...

*September 29, 2016*

**CHECK MY ANSWERS American Government**

Sorry to post this again. no one got back to me before. *** by my answer, please check!! 1. Which of the following is true about the formal amendment process for the Constitution? (1 point) Any citizen may propose an amendment. Only Congress may propose an amendment. Both ...

*September 29, 2016*

**any**

Jim, Juan, Mary, and John are all managers for the same company Jim always meets the sales goals Juan exceeded the goal by 15% on Tuesday and 10% on Wednesday. Mary’s goals for each day of the week are 5% lower than the goals for other managers. Mary missed her Monday ...

*September 29, 2016*

**Science**

How much energy is needed to raise the temperature of 2.0kg of aluminium by 30oc

*September 29, 2016*

**Math**

Kody has currently has an average of 80 in his math class. What must he make on his midterm, that counts 20% of his grade, to maintain a 70 or above average?

*September 29, 2016*

**CHECK my answers for American Government**

*** by my answer, please check!! 1. Which of the following is true about the formal amendment process for the Constitution? (1 point) Any citizen may propose an amendment. Only Congress may propose an amendment. Both houses of Congress must pass a resolution to propose an ...

*September 29, 2016*

**Math**

Sheila and Rita had $300. After Shiela gave $56 to Rita, , Rita had 5 times as much money as Shiela . How much money did each of them have at first?

*September 29, 2016*

**geograpy**

Sun

*September 29, 2016*

**geograpy**

some have more than a hundred some have none

*September 29, 2016*

**Chemistry**

A student performing an experiment mistakenly used 8.0 ml of 16 M HNO3 to dissolve 0.16g of solid copper instead of the 4.0 ml as suggested. how many moles of HNO3 remains after the reaction with copper is complete. 8 moles of HNO3 reacts with 3 moles of Cu im not sure how i ...

*September 29, 2016*

**Physics**

3.5 hours

*September 29, 2016*

**English**

What part of speech is other in. The sentence The platypus is unlike most other mammals in that it lays eggs

*September 28, 2016*

**Science**

What is the answer for 3g of sugar in 300ml of water

*September 28, 2016*

**algebra**

An investor earned $1,462.50 on an investment of $90,000 in 65 days. Find the annual simple interest rate earned on the investment

*September 28, 2016*

**math**

9+15÷5×13

*September 28, 2016*

**Algebra**

Solve this system using substitution x+2y=8 y=3x+17 I got x=-26/7

*September 28, 2016*

**Math**

Use the digits 2, 4, 6, 8, and any operation or brackets to make an expression that equals to 60.

*September 28, 2016*

**Language Arts**

How does the writer support the statement that dental floss promotes good dental health? With personal opinions with opinions from experts with facts that and statistics with sales information

*September 28, 2016*

**Language Arts**

The answer is C

*September 28, 2016*

**Language Arts**

How does the writer support the statement that dental floss promotes good dental health?

*September 28, 2016*

**Algebra**

You can rule out A and D automatically because the problem has nothing to do with addition. As for the answer, it is B. The commutative property of multiplication states that numbers can be multiplied in any order.

*September 28, 2016*

**CHM 1020**

alculate the amount of heat required to raise the temperature of a 39 g sample of water from 9 ∘C to 21 ∘C

*September 28, 2016*

**math**

h = 6d + 4

*September 28, 2016*

**CHM 1020**

Use the formula Q=m*C*change in T. Plug in 39 for m, 4.18 for C (the specific heat capacity of water), and 12 (which is 21 - 9) for change in T. Multiply these numbers to get your answer.

*September 28, 2016*

**CHM 1020**

Calculate the amount of heat required to raise the temperature of a 39 g sample of water from 9 ∘C to 21 ∘C

*September 28, 2016*

**math**

Zhckc

*September 28, 2016*