Sunday

August 28, 2016
Total # Posts: 966

**math**

You roll a die. If an odd number comes up, you lose. If you get a 6, you win $54. If it is an even number other than 6, you get to roll again. If you get a 6 the second time, you win $18. If not, you lose. (a) Construct a probability model for the amount you win at this game. ...
*August 24, 2016*

**math**

A true-false test consists of 15 items. (a) If Chris does not study at all and guesses each and every item in the test, describe the probability model for the number of correct guesses. each individual question has a probability of 1/2 of being correct so you want (1/2)(1/2...
*August 24, 2016*

**math**

A true-false test consists of 15 items. (a) If Chris does not study at all and guesses each and every item in the test, describe the probability model for the number of correct guesses. (b) What is the probability that Chris gets 80% or more for the test? Not sure how to do a...
*August 24, 2016*

**math**

A true-false test consists of 15 items. (b) What is the probability that Chris gets 80% or more for the test? (c) If it is a 25 item true-false test, would you think it is easier or more difficulty for Chris to get 80% or more? (Hint: please calculate the corresponding ...
*August 24, 2016*

**Business Law- Need Help with this one..**

It's c
*July 21, 2016*

**Math**

1 1/5 a ------ = ----- -6 3/7 4 1/6
*June 23, 2016*

**Algebra**

A woman can bicycle 66 miles in the same time as it takes her to walk 24 miles. She can ride 7 mph faster than she can walk. How fast can she walk? Using r as your variable to represent the rate at which she walks, write an equation using the information as it is given above ...
*May 9, 2016*

**alg**

in the function f(x)=4(x^2-6x+ )+20 what number will complete the square
*April 29, 2016*

**help !! chemistry **

H2O(g) + Cl2(g) 2 HCl(g) + ½ O2(g) Heat of Reaction is WebAssign will check your answer for the correct number of significant figures. kJ Changed: Your submitted answer was incorrect. Your current answer has not been submitted. Information: COCl2(g) + H2O(g) CH2Cl2(l...
*April 27, 2016*

**chemistry**

How many joules of heat are removed to completely covert 80.0 grams of water to ice at zero Celcius? For water: c = 4.179 J/g °C Hfusion = 333.528J/g Hvap = 2258.601 J/g
*April 20, 2016*

**math**

The U-Drive Rent-A-Truck company plans to spend $8 million on 280 vehicles. Each commercial van will cost $25,000, each small truck $30,000, and each large truck $40,000. Past experience shows that they need twice as many vans as small trucks. How many of each type of vehicle ...
*April 8, 2016*

**chemistry **

Fluorine-20 has a half-life of 11.0 s. If a sample initially contains 49.0 μg of this isotope, how much remains after 66.0 s ?
*April 7, 2016*

**Technology in the classroom**

What is the ideal computer arrangement to use when you want to integrate computers directly into the classroom curriculum? A. One computer located in each classroom B. One computer that's shared among several classes C. A central computer lab, with one computer per student...
*April 7, 2016*

**Math**

Write an expression for this statement: Double 5, then add 63. I don't understand double 5. Does it mean 5 to the 2nd power or 5 +5?
*April 2, 2016*

**Lang arts 6th frade**

Which is the best summary of the argument between Azaz and the Mathemagician in Act I of The Phantom Tollbooth? 1. Rhyme and reason declare a tie, and neither king is happy. 2. The audience votes after the Princesses count the sands and name the stars. 3. ...
*March 28, 2016*

**Math**

Can you help with a math word problem on rates and ratios
*March 28, 2016*

**stats**

It is a multiple choice exam with 12 problems, each problem has 5 options. You need to answer 10 correctly to pass, what is the probability that by guessing you will answer at least 10 problems correctly?
*March 16, 2016*

**plz check on math 6th grade**

The wheel of a unicycle has a radius of 14 inches how many minutes many rotations does it take for a will to travel 440 inches A.3 B.5*** C.8 D.10
*March 9, 2016*

**math 5th grade**

Samantha is making some floral arrangements. The table shows the prices for one-half dozen of each type of flower. Price for 1/2 dozen flowers rose : $5.29 Carnation : $3.59 Tulip $ 4.79 part A: Samantha wants to buy 6 roses, 4 carnations, and 8 tulips. She estimates that she ...
*March 1, 2016*

**Math**

1/8 then?
*March 1, 2016*

**Math**

Four friends share 1/2 of a pan of brownies. If each friend eats an equal portion, what fraction of the pan of brownies will each friend eat? Is the answer 1/4?
*March 1, 2016*

**Math**

subtract 70 with 7 x 3.
*February 23, 2016*

**Math**

70 devided by 10 = 7 7 is 1/10 of 70 multiply 7 by 3 and thats your answer.
*February 23, 2016*

**Math**

Sense the ratio is 1:2:5 and the 2nd ratio is 30 you devide 30 then multiply the new number by 5.
*February 22, 2016*

**Social Studies check my answers please**

lamp is correct! 100% correct! Just took the quiz and got a 100%
*February 22, 2016*

**psychology**

When researchers find similarities in development between very different cultures, what implications might such findings have for the nature-nurture issue?
*February 21, 2016*

**math**

50 + 1.15x = 2.50x solve x
*February 16, 2016*

**answer**

It makes a U shape.
*February 16, 2016*

**Chemistry **

How do I determine the value of the reaction 2HI(g) + 2.4 kcal --> H2(g) + i2(g) delta H = a) 2.4 kcal b) -2.4 kcal c) 0.00024 kcal d) -0.00024 kcal
*February 16, 2016*

**Chemistry **

How do I determine the value of the reaction 2HI(g) + 2.4 kcal --> H2(g) + i2(g) delta H = a) 2.4 kcal b) -2.4 kcal c) 0.00024 kcal d) -0.00024 kcal
*February 16, 2016*

**English**

Just looked it up and its A.
*February 16, 2016*

**Physics**

Sara dragged a 45N canoe for 36 seconds down the boardwalk. If Sara used 120 Watts of power, how long was the boardwalk?
*February 13, 2016*

**educational and tecnology**

b)a CD your friend bought that you borrowed
*February 4, 2016*

**Eco**

How do you think a nation’s output should be distributed according to income or according to some other standard (such as basic human need)?
*January 25, 2016*

**help**

what is the lim as x approaches 0 from the right of sin x
*January 25, 2016*

**help**

Econ? I do not need help with that. I need help with Math
*January 25, 2016*

**help**

WHERE ARE ALL THE TUTORS WHEN I NEED THEM
*January 25, 2016*

**Economics**

I don't understand it which is why Im asking for help but clearly you do not know how to help me.
*January 25, 2016*

**Math **

I need to create a picture on the computer and plot points using the x-axis and the y-axis. What program would I use to make this?
*January 17, 2016*

**music**

WHat is the second step in the process of composing a musical soundtrack?
*December 30, 2015*

**algebra**

I am the middle of 3 numbers whose total is 31. The largest is 3 more than 5 times the smallest. What # am I? 1st number I put as x 2nd number I put as y as long as y> x 3rd number is 3+5x=z X+y+z=31 so when I plug it in I get X+y+3+5x=31. Y=28-6x Now is where I get lost. ...
*December 9, 2015*

**Medievalism**

Hi, I need help finding a medieval object that still exist in the modern world.
*December 4, 2015*

**History **

I need a campaign poster for populist party
*November 29, 2015*

**Pre-Calc**

is there a way to upload a picture?
*November 19, 2015*

**Pre-Calc**

The CN Tower in Toronto, Canada, is the tallest free-standing structure in North America. A woman on the observation deck, 1150 ft above the ground, wants to determine the distance between two landmarks on the ground below. She observes that the angle formed by the lines of ...
*November 19, 2015*

**English**

1) it's either humorous or cold 2) slang
*November 8, 2015*

**Math**

26 animals tatal
*October 22, 2015*

**Math**

Parking in a student lot cost $2.00 for the first half hour and $1.75 for each hour thereafter. A partial hour is charged the same as a full hour. What is the longest time that a student can park in this lot for $8.00.
*October 12, 2015*

**Math**

The answer for this is a.-4,-1,2,5
*October 8, 2015*

**math**

Bridget ungrouped 5,000 as shown. 5,000-2896=. Use your understanding of place value to explain how the ungrouped number is equal to 5,000.
*October 7, 2015*

**Phyics**

A particle, which starts from rest, covers a distance of 19.94 cm in the first 8.6 seconds. Find the acceleration (in m/s2) of the particle at the end of 8.6 seconds.
*September 26, 2015*

**stats**

If a student scored 75 points on a test where the mean score was 83.5 and the standard deviation was 3.1. The student's z score is ________.
*September 15, 2015*

**Math**

Write each number is scientific notation. 291.7 0.0960 is it 2.917 x 10^ 3 and 9.60 x 10^-2? help!! thanks!!
*September 11, 2015*

**prealgebra**

10 points X 7 times = 70 points Additional 100 points = 100 points 70 points + 100 points = 170 points
*September 10, 2015*

**White Collar Crime**

Money for travel to different state where crime occured. Money to come back home. Drug testing while awaiting trial. Money for travel to go for trial by jury. Trial itself. Sentencing; then back home for a few months to get affairs in order. Money for travel to go to prison. ...
*July 18, 2015*

**PHI103**

All Whales are mammals. All mammals have hair or fur. Therefore, all whales have hair or fur. True or False: There is no conclusion in these propositions. True False Don’t worry, when I come back from my trip we’ll be more in love than ever. After all, absence makes...
*July 11, 2015*

**algebra (check my work)**

thanks
*May 25, 2015*

**algebra (check my work)**

60% of what number is 24? a/w = p/100 24/w = 60/100 24 * 100 = 60* w 2400 / 60 = 60w / 60 w = 40 am i correct?
*May 25, 2015*

**math**

x does not equal 7 because on list b 7/8 = 87.50% and therefore is greater than 33%
*May 4, 2015*

**math**

tell what whole number you can substitute for x in each list so the numbers are ordered from least to greatest. a. 2/x, x/22, 33% b. 1/x, x/8, 33%
*May 4, 2015*

**Math**

A rectangle has an area of 48 square yards. For what whole number values of length & width will the rectangle have the smallest perimeter?
*April 29, 2015*

**Math**

The areas of the rectangular faces of the box are shown( 90 in.², 60 in.², & 54 in.²). What is the volume of the box?
*April 29, 2015*

**Math **

The area of each unshaded rectangle is given (the areas given are ( 30 in.², 45 in.², 72 in.²)). What is the area of the shaded rectangle?
*April 29, 2015*

**Math **

For what whole number values of length and width will the rectangle have an area of 60 square yards and I'm perimeter of 38 yards?
*April 29, 2015*

**Math **

An airplane is at an altitude of 10 km. You spot the airplane at an angle of 55 degrees . How far away Is the airplane directly from you? Give your answer to the nearest kilometre.
*April 11, 2015*

**Math**

If a grasshopper jumped a vertical distance of 1.5 cm and horizontal distance of 8.0 cm,at what angle did it rise from the ground?
*April 11, 2015*

**Math **

A 6 m ladder is leaning against the wall of a house. The angle between the ladder and the ground is 68 degrees. How far away is the ladder from the wall.? How high up the house does the ladder reach ? Give your answers accurate to two decimal places.
*April 11, 2015*

**Math**

A 6 m ladder is leaning against the wall of a house The angle between the ladder and the ground Is 60 degrees . How far away is the ladder from the wall? How high up the house does the ladder reach? Give your answers accurate to two decimal places
*April 10, 2015*

**math**

Thanks for all your help everyone I hope you have all the answers you need for your questions.!!!!!!😀👍🏿👤
*April 4, 2015*

**math**

Terry, Corey, and Chris together made 20 baskets in a basketball game. Terry made 5 more than Corey. Chris made 3 times as many as Corey. How many baskets did they all have?
*March 26, 2015*

**science**

If I fire three arrows at 20 degrees, 40 degrees and 60 degrees, which arrow will go the farthest?
*March 23, 2015*

**math **

Find three mixed numbers so that the sum is 18 and the difference between the greatest number and the least number is 5 1/5.
*March 19, 2015*

**sociology**

what are subtopics for education
*March 19, 2015*

**sociology**

Talcott Parsons has suggested that with increasing institutional role specialization in modern societies, the family has taken on fewer functions” Based on your experience, apply this functionalist perspective to evaluate the main functions of a Caribbean family today.
*March 17, 2015*

**Chemistry**

What volume of .225 M aluminum chloride solution contains 5.0 g solute?
*March 12, 2015*

**using skills**

Hmm, this is the most approiate age to learn about sex and sexual education. DEEZ NUTS HUEUHEHe
*March 5, 2015*

**sociology**

Talcott Parsons has suggested that with increasing institutional role specialization in modern societies, the family has taken on fewer functions” Based on your experience, apply this functionalist perspective to evaluate the main functions of a Caribbean family today
*February 26, 2015*

**chemistry**

a mixture of NaCl and sucrose that has a combined mass of 10.20g is dissolved in enough water to make up to a 250mL solution. osmotic presdure of solution is 7.32atm at 23℃. calculate the mass percent of NaCl
*February 25, 2015*

**Statistics**

The time to fly between New York City and Chicago is normally distributed with a mean of 180 minutes and a standard deviation of 17 minutes. What is the probability that a flight is more than 200 minutes?
*February 10, 2015*

**math**

I also Wanted to answer the question but I don't know the answer. Can you help me out ?
*February 8, 2015*

**STATS**

. The time to fly between New York City and Chicago is normally distributed with a mean of 180 minutes and a standard deviation of 17 minutes. What is the z-score that corresponds to a random variable X outcome of 190 minutes?
*February 8, 2015*

**pre-algebra**

Both are correct
*January 28, 2015*

**math**

Eric Rose wants to buy a Ford Explorer that costs $26,000 with an interest charge of $3,000. If there are 50 equal payments required, what will Eric's monthly payment be?
*January 26, 2015*

**Math**

What are the domain and range for 2(y-1)= - the square root of 1/3x-6
*January 26, 2015*

**Geometry**

The surface of a cube is painted red and blue, 3 sides of each. The cube is cut into 27 equal sized smaller cubes. Find both answers to the question, "How many cubes have at least 2 sides painted blue?" and "How many cubes have at least 1 side painted red?"...
*January 24, 2015*

**Geometry**

How many different surface areas are possible when 8 one inch cubes are arranged so that each has one or more faces in common (touching) with at least one of the other cubes? We have to use a physical model. And I have no idea how to start this or even do it. Please be ...
*January 24, 2015*

**Maths**

Suppose that the reliability of a HIV test is specified as follows: Of people having HIV, 90% of the test detect the disease but 10% go undetected. Of people free of HIV, 99% of the test are judged HIV–ive but 1% are diagnosed as showing HIV+ive. From a large population ...
*January 22, 2015*

**Math**

If the probability of landing on a certain color is p, write an expression for the probability of not landing on that color or the complement. Suppose the probability of p is 1/4. Solve the expression and explain their relationship. The wheel has 4 colors: 2 parts a red 2 are ...
*January 6, 2015*

**science**

how are relative dating and absolute dating different
*December 25, 2014*

**math**

The overall probability of a student failing an exam is 40%. Calculate the probability that in a group of 6 students, at least 4 passed the exam.
*December 13, 2014*

**Calculus**

Find the length of the entire perimeter of the region inside r=15sin(theta) but outside r=1. I am not sure how to start the problem
*December 12, 2014*

**Math**

What is log x + log x + log x = 3? I want to say 3000 since 10^3=1000, then three times makes 3000.
*December 8, 2014*

**HUNGER GAMES!!!**

what was recreation like in the capitol compared to other districts!!! please help!!!
*November 29, 2014*

**English**

Where would I put the apostrophe on: Close the children's mouths? Since there is more than one child and more than one mouth, is it before or after the s?
*November 16, 2014*

**English**

Does motion sensing need a hyphen?
*November 16, 2014*

**English - grammar**

I need my sentence to be past tense third person. I know my main verb 'caused' is past tense, but the 'prime acting citizens' phrase is confusing me since 'acting' ends in 'ing', which is not past tense. Do I need to change it to make it past ...
*November 14, 2014*

**Algebra**

He means you want f(x) to equal g(x). I.e. f(x) = g(x) [NOT g(x) = g(x)] When you set two equations equal to each other you find the points of intersection.
*November 9, 2014*

**Algebra**

They intersect at two points. (1, 2) and (-1,-2).
*November 9, 2014*

**Algebra**

There is a program called Graph. You can google it by typing in "graph", download it for free, and put in those equations to find the intersection.
*November 9, 2014*

**8th grade**

A camera manufacturer spends $2050 each day for overhead expenses plus $7 per camera for labor and materials. The camera sells for $17 each. a. How many cameras must the company sell in one day to equal its daily costs? b. If the manufacturer can increase production by 50 ...
*October 15, 2014*