Saturday

November 28, 2015
Total # Posts: 88,374

**physics**

R=pL/A R is resistance P is resistivity L is length A is area
*October 10, 2015*

**Msth**

Number 1 should say variable
*October 10, 2015*

**maths**

what is 1/50 x length of new garage?
*October 10, 2015*

**Math**

A parallelogram has an angle of 50 degs and sides of 5 and 10 inches. What are the lengths of the diagonals? Round each to the nearest tenth of an inch.
*October 10, 2015*

**Chemistry**

* From your hint, I arrived at an answer of 3.46 x 10^4 but the answer key says 3.11 x 10^5 Ib. A backyard swimming pool holds 185 cubic yards (yd^3) of water. What is the mass of the water in pounds? DrBob222: 185 yd^3 x (3 ft/yd) x (3 ft/yd) x *3 ft/yd) = ? cubic feet. ...
*October 10, 2015*

**Chemistry**

The single proton that forms the nucleus of the hydrogen atom has a radius of approximately 1.0 x 10^-13 cm. The hydrogen atom itself has a radius of approximately 52.9 pm. What fraction of the space within the atom is occupied by the nucleus.
*October 10, 2015*

**Chemistry**

A backyard swimming pool holds 185 cubic yards (yd^3) of water. What is the mass of the water in pounds?
*October 10, 2015*

**physics**

when starting a foot race a 66 kg sprinter exerts an average force of 640 N backward on the ground for 0.85s. What is his final speed in m/s?
*October 9, 2015*

**math**

thank you is the equation going to be x+9+3x+9=78
*October 9, 2015*

**math**

The sum of the ages of Jose and Valerie is 78 years. 9 years ago, Jose's age was 3 times Valerie's age. How old is Jose now? (A) Translate the given information into an equation using the variable x = current age of Jose. Your equation should contain 78, 3, and 9. Do ...
*October 9, 2015*

**Math**

Skyler is 2 years older than Sonya. In 9 years the sum of their ages will be 50. How old is Sonya now? (A) Translate the given information into an equation using the variable x = current age of Sonya. Simplify the left side of your equation. _____________ = 50 (B) How old is ...
*October 9, 2015*

**bio**

During lab, you are provided with a stock antibody solution (Ab) that has a concentration of 400 μg/μl (Tube 1). It is necessary make the following dilutions.
*October 9, 2015*

**History**

Differences in Similarities between Sweden, Malaysia, and India
*October 9, 2015*

**chemistry**

If 3.15 mL of vinegar needs 42.5 mL of 0.115 M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.40 qt sample of this vinegar?
*October 9, 2015*

**Maths**

Line L1 has equation 2x -3y+12=0 Gradient of L1 is 2/3x The line L1 crosses the x axis at the point A and the y axis at the point B. The line L2 is perpendicular to L1 and passes through B. A) find and equation of L2 The line L2 crosses the x axis at the point C B) find the ...
*October 9, 2015*

**Maths**

Determine the values of K such that the quadratic equation x^2 + 2Kx - 3K =0 has equal roots Thankyou
*October 9, 2015*

**Algebra**

Molly left home and drove toward the ferry office at an average speed of 27 mph. Mark left two hours later and drove in the same direction but with an average speed of 45 mph. How long did Molly drive before Mark caught up? I am terrible at word problems and this is a review ...
*October 9, 2015*

**Math**

Taiti drank 3/4 glass of orange juice, 1/8 glass of prune juice, and 1/2 glass of milk. How much did she drink all together?
*October 9, 2015*

**statisciscal inference**

The probability that a patient recovers from a delicate heart operation is .0.9. What is the probability that exactly 5 of the next 7 patient having this operation survive?
*October 9, 2015*

**Biology **

I put them in order, but am not sure. Please take a look? Question: Put the following events of the adaptive immune response in the order they occur. (c) You cut yourself and bacteria enter the wound. (f) A dendrite near the cut phagocytizes some bacteria and uses MHC proteins...
*October 9, 2015*

**Microbiology**

Which of the following molecules do you think would make good antigens for recognizing a pathogen? You may choose more than one. 1) a cell wall protein 2) a piece of DNA inside a cell 3) a protein that is part of a flagella 4) a uniquely shaped protein that is part of a virus ...
*October 9, 2015*

**math**

I am trying to get this answer too
*October 9, 2015*

**prasanna high school**

Subject:maths. question: the sum of first 6terms.of an aritmetic progression is 6.the product of 2nd term & 5th term is -80 find the terms of A.P.
*October 9, 2015*

**Maths**

Write in completed square form -x^2 - 3x + 7
*October 9, 2015*

**umuc**

For the reaction HCONH2(g) NH3(g) + CO(g), Kc = 4.84 at 400 K. If ΔH° for this reaction is 29 kJ/mol, find Kc at 500 K.
*October 9, 2015*

**maths **

The sum of first 6 terms of an Arithmetic progression is 6 the product of 2nd term and 5th term is -80 . Find the terms of A.P.
*October 8, 2015*

**Pre-Calc**

How do I simplify (tan x/(1 + sec x))+((1 + sec x)/(tan x))?
*October 8, 2015*

**Simple Interest**

(1 point) Quincy's property tax is $665 and is due on April 25. He does not pay until July 19. The county adds a penalty of 9.9% simple interest on unpaid tax. Find the penalty Quincy will pay. (Assume that there are 365 days in a year. Round to the nearest cent.) The ...
*October 8, 2015*

**Physics**

A ball thrown upward from the a point 7 meters below the bottom of a window rises past the window, which is 2.5 meters high, passing the window in 0.33 seconds. How fast was it going when it reached the bottom of the window, and with what velocity was it initially thrown upward?
*October 8, 2015*

**Math**

2.7
*October 8, 2015*

**Math**

How do i solve for r? (-2,7) (r,3) m=4/3
*October 8, 2015*

**science**

Describe the two most important events in the history of animal life that occurred at the beginning and at the end of the Paleozoic era. (2 pts) List and briefly outline the six different periods into which the Paleozoic era is divided.
*October 8, 2015*

**rainbow**

Describe the two most important events in the history of animal life that occurred at the beginning and at the end of the Paleozoic era. (2 pts) List and briefly outline the six different periods into which the Paleozoic era is divided.
*October 8, 2015*

**Calculus**

Use the FTC 1 to find the area of the region under the graph of the function f(x)= 8x-x^2 on [0,8]. I got 244/3 but the answer key says 256/3.
*October 8, 2015*

**Math**

Sarah rolls a die twice. What is the probability that she rolls a 3 and then an even number?
*October 8, 2015*

**english 1**

Which excerpt from the passage best allows the reader to infer that the Maori people felt cared for by the earth?
*October 8, 2015*

**science- physics**

In this question, the vector makes a 31 degree angle with the y-axis, not the x-axis. Also, remember that the x-value is negative. The correct answer is -3.09, 5.14 km.
*October 8, 2015*

**math**

CAN ANYONE CHECK THIS FOR ME PLEASE! NEED IT ASAP.. 5 < x -2 < 11 a. 5 < x < 11 b. 7 < x < 13 **** c. 7 < x < 11 d. 5 < x < 16
*October 8, 2015*

**probability**

The length of time for one individual to be served at a cafeteria is a random variable having an exponential distribution with a mean of 4 minutes. What is the probability that a person is served in less than 3 minutes on at least 4 of the next 6 days?
*October 8, 2015*

**math**

A scale drawing is made to enlarge a picture by using a scale factor of 3. The enlarged picture is 9 inches by 15 inches. What are the dimensions of the original picture?
*October 8, 2015*

**Calculus 1**

-.72
*October 8, 2015*

**HELP HELP CALCULUS **

y=e^(5e^x) differentiate first and second derivative
*October 7, 2015*

**Math**

John needs $20 to buy a ticket to a show. He earned 1/4 of the money on Monday, 2/5 on Tuesday and 1/ 10 on Wednesday. What fraction of the money does John still need to earn?
*October 7, 2015*

**Math**

John needs $20 to buy a ticket to a show.He earned 1/4 of the money on Monday, 2/5 onTuesday,and 1/10 on Wednesday. What fraction of the money does John still need to earn?
*October 7, 2015*

**Chemistry **

4.Report your answer in correct significant figures. A.1.32*10^4cm+2.1*10^2
*October 7, 2015*

**Biology**

What is the difference between an environment with freshwater and an environment with pristine wates? I need to design an experiment with a shrimp that is found in freshwater but not in pristine but I don't understand what is the difference between the two. Thanks!
*October 7, 2015*

**math**

compare x+y o 19
*October 7, 2015*

**Chemistry**

How do halogens (Cl2, Br2, I2) react with halides (Cl-, Br-, I-)? Can we explain this reactivity?
*October 7, 2015*

**Chemistry**

What is the relationship between the relative reactivities of the halogens when compared to the relative reactivity of the halides?
*October 7, 2015*

**History**

How are export processing zones a part of globalization and industrialization
*October 7, 2015*

**English **

After watching roy Hargrove play the trumpet, marcia decided that she wanted to be one
*October 7, 2015*

**government**

which political party heads all the committees?
*October 7, 2015*

**Algebra**

Second one
*October 7, 2015*

**Government**

How often are filibusters used? Why?
*October 7, 2015*

**Science- RE-DO**

1. b 2. c 3. a 4. d 5. b
*October 7, 2015*

**Math**

a test 50 problems on it. for every correct answer, 2 points are given. for each incorrect answer, 1 point is subtracted. sue scored 85 points. how many problems did she miss?
*October 7, 2015*

**physics**

The steel I-beam in the drawing has a weight of 1.53 × 103 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends?
*October 7, 2015*

**Math**

What is .768 divded by 1.6
*October 7, 2015*

**thermodynamics**

heat in the amount of 5 KJ is added while its internal energy decreases by 10 KJ. how much energy is transferred as work? for a process causing the same change of state but for which the work is zero, how much heat is transferred?
*October 7, 2015*

**thermodynamics**

liquid water at 100C and 1 bar has internal energy (on an arbitrary scale) of 419 kj /kg and a specific volume of 1.044cm3 /g a- what is its enthalpy? b-the water brought to the vapor state at 200C and 800 kpa, where its enthalpy is 2838.6 kj/kg and it is specific volume is ...
*October 7, 2015*

**english**

thank you is number 6 a correct sentence ?
*October 7, 2015*

**english**

2.fused sentence 3. comma splice 6. comma splice 8. fused sentence
*October 7, 2015*

**english**

Q1. Identify whether the word groups are fused sentence, comma splice or correct sentence.(4) i There is nothing better for a cold than a hot coffee and a big box of chocolate ____________ ii She ran out of the room the shadows in the corner had scared her._________ iii Tim ...
*October 7, 2015*

**ACCT**

A lumber yard is going to cut a board which is 18 m into 16 pieces of equal length. How long will each piece b
*October 7, 2015*

**math **

Audrey can drive 150 miles on 6 gallons of gas,and 225 miles on 9 gallons of gas.write an equation for the distance,d, that audrey can drive on g gallons of gas.
*October 7, 2015*

**French**

"Je mets un chemisier." Is this pronounced "mez un" or "mey un"?
*October 7, 2015*

**GRAMMER**

The wound was copiously irrigated with normal saline, and the mucosal flap was replaced to its appropriate position.
*October 7, 2015*

**english**

1. fused sentence 2. fused sentence 3. correct sentence 4. comma splice 5. comma splice 6. fused sentence 7. fused sentence 8. fused sentence
*October 7, 2015*

**english**

Q1. Identify whether the word groups are fused sentence, comma splice or correct sentence.(4) i There is nothing better for a cold than a hot coffee and a big box of chocolate ____________ ii She ran out of the room the shadows in the corner had scared her._________ iii Tim ...
*October 7, 2015*

**math**

On Saturday, the fruit and juice bar was selling 30 glasses of fruit punch an hour. By 7 p.m., they had sold 270 glasses. If their goal was to sell at least 360 glasses of fruit punch, which inequality can be used to find h, the number of hours they must stay open to make ...
*October 7, 2015*

**SS**

What are two examples of leaders who used military force to rule or gain power/money in modern times?
*October 7, 2015*

**Life orintation**

Which subject i must learn if i want to be a doctor?
*October 7, 2015*

**math **

Jeff has to pay his car insurance annually. If his total bill is $744, how much money should he set aside each month for car insurance? Round to the nearest dollar.
*October 7, 2015*

**Physics**

klmn
*October 7, 2015*

**chem 215**

16.6 ml of a solution is run into an empty flask, from a buret. The mass of the empty flask is 145.0 g. The mass of the flask plus solution is 158.5 g. The density of the solution is _____ g/ml.
*October 7, 2015*

**science**

The process in which an animal’s cells use oxygen and digested food molecules to release the energy in food is called a. Breathing b. cellular respiration c. diffusion d. gas exchange
*October 7, 2015*

**algebra please help**

Can someone do #6
*October 6, 2015*

**algebra please help**

SOMEBODY PLEASE HELP ME WRITEACHER AND MS.SUE HELP PLEASE
*October 6, 2015*

**algebra please help**

Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last ...
*October 6, 2015*

**English**

As in..."Metaphorically, the disguise represents evil."
*October 6, 2015*

**English**

Is "Metaphorically" a transition word?
*October 6, 2015*

**English **

Becoming a doctor is potentially one of my careers. Does this sentence sound awkward? If so, how else can I write it?
*October 6, 2015*

**Physics**

Light in a vacuum is incident on a transparent glass slab. The angle of incidence is 35.1°. The slab is then immersed in a pool of liquid. When the angle of incidence for the light striking the slab is 21.1°, the angle of refraction for the light entering the slab is ...
*October 6, 2015*

**physics**

A car travels in a straight line for 4.6 h at a constant speed of 95 km/h . What is its acceleration?
*October 6, 2015*

**Algebra**

I think W is 111 and L is 129
*October 6, 2015*

**language arts**

someone help
*October 6, 2015*

**language arts**

Which of the following details from “Harriet Tubman” best supports the inference that Tubman had religious beliefs? She is known by the code “Moses” among the escaping slaves. She signals her arrival to the escaping slaves with a forbidden song. She takes ...
*October 6, 2015*

**Math (Algebra) **

Gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple choice questions correct and received 19 points for her essay. Ezia got 15 multiple choice questions correct and received 31 points for her essay. How ...
*October 6, 2015*

**math**

Four years ago manny is 14 years old. If he is teice older than sam, how old is sam?
*October 6, 2015*

**physics**

A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 575 N. As the drawing shows, she is closer to the left cliff than to the right cliff, with the result that the tensions in the left and right sides of the rope are not the ...
*October 6, 2015*

**physics**

A student is skateboarding down a ramp that is 5.79 m long and inclined at 17.6° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 4.22 m/s. Neglect friction and find the speed at the bottom of the ramp.
*October 5, 2015*

**chem 121**

A student rushed in order to complete this experiment quickly. In attempting to save time, the student made some procedural errors. Briefly describe the effect of each of the following errors on the calculated ratio of Mg to O (indicate whether the calculated ratio would be ...
*October 5, 2015*

**Social Studies**

hiiiiiií
*October 5, 2015*

**Social Studies**

hiiiiiií
*October 5, 2015*

**Social Studies**

Sorry about that Ms. Sue, would the answer be B?
*October 5, 2015*

**Physics **

Q: A car travels in a straight line for 4.6 h at a constant speed of 95 km/h . What is its acceleration? Answer in units of m/s 2
*October 5, 2015*

**Social Studies**

Sorry, I did not see there was a response to this! Thank you!
*October 5, 2015*

**Social Studies**

Haha, thank you!
*October 5, 2015*