Saturday

October 25, 2014

October 25, 2014

Total # Posts: 1,420

**Physics Help Please!!!!**

A man pushes a stalled car with a horizontal force of 312 N. The car does not move. What is the frictional drag force on the car? A water-skier (mass=60kg) is pulled by a boat with a horizontal force of 300N. The boat and the skier have a constant velocity. What is the ...
*October 16, 2014*

**Physics Help Please!!!!**

During a launch of the shuttle, fuel is being burned at a rate of 2000 kg every second. the exhaust from the burning of this fuel is expelled by the engines and can be seen during the launch. readings from instruments mounted on the space shuttle show that for the first 2 min ...
*October 15, 2014*

**Physics**

Two children are playing on two trampolines. The first child can jump one and a half times higher than the second child. The initial speed of the second child is 5 m/s. What is the maximum height of the second child? What is the initial speed of the first child? How long was ...
*October 12, 2014*

**Math **

According to the U.S. Census Bureau's most recent data on the marital status of the 242 million Americans aged 15 years and older, 124.2 million are currently married and 74.5 million have never been married. If one person from these 242 million persons is selected at ...
*October 2, 2014*

**Math**

jason mixed 3/8 cup of sugar with 1 5/6 cups of water. how many more cups of water than sugar did he use in his mixture?
*September 24, 2014*

**chemistry**

Would a substance with a density of 7.89 kg/dm^3 float on a substance that has a density of 14.2 g/ml?
*September 23, 2014*

**Chemistry**

A graduated cylinder contains 56.3ml of water. A metal cylinder is dropped in the water and is completely covered by water. The diameter of the cylinder is 3.8 cm and the height of the cylinder in 5.4cm. What is the volume reading in the graduated cylinder after the cylinder ...
*September 22, 2014*

**Math**

Alice, Bob, and Charlie are three siblings with ages a, b, and c respectively. Their combine age is 18 years. Charlie is older than Bob. Alice's age is equal to twice the difference between Bob's and Charlie's ages. Bob's age is equal the average of Alice's...
*September 22, 2014*

**Chemistry**

The men's marathon world record was in a time of 2hours, 4minutes, and 55 seconds. The standard distance is 26 miles 385 yard. At this pace, what is his speed in miles per hour?
*September 21, 2014*

**trig**

I have arrived at .322 as the sine of the angle how do I find the actual angle (in decimal/deg)
*September 13, 2014*

**income tax**

Kobe is a single dad with two dependent children, Lizzie, age 7 and Leslie, age 3. He has AGI of $51,000 and paid $6,300 to a qualified day care center. What amount of credit can Kobe receive for the child and dependent care credit?
*June 29, 2014*

**physics**

A 370kg piano slides 2.9m down a 24∘ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Ignore friction.
*June 9, 2014*

**math**

write a problem with lengths in feet using the numbers 29 and 56. write the answer to your problem.
*May 29, 2014*

**math**

Jane has a piece of wood that is 24 inches long. She uses 6 inches for one project and 9 inches for another project. How much wood does Jane have left?
*May 29, 2014*

**math**

Tyler and Mia join popcorn strings to make a string 84 centimeters. Tyler's popcorn strings is 36 centimeters long. How many is Mia's popcorn string?
*May 29, 2014*

**math**

Logan measures the height of his rose bushes. One rose bush is 35 centimeters tall. Another rose bush measures 39 centimeters tall. How tall are both rose bushes?
*May 29, 2014*

**math**

Tyler and Mia join popcorn strings to make 84 centimeters. Tyler's popcorn string is 36 centimeters long. How long is Mia's popcorn string?
*May 29, 2014*

**math**

Ryan watches 2 bullfrogs jump a total of 39 inches. One bullfrog jumps 22 inches. How far did the second bullfrog jump?
*May 29, 2014*

**math**

Anna has 16 inches of silver lace and 19 inches of gold lace. How much lace does Anna have?
*May 29, 2014*

**Algebra 2**

I still dont understand
*May 29, 2014*

**Algebra 2**

a farmer has 400 meters of fence with which to enclose a portion of land. the farmer wants to enclose a rectangular piece of ground that is as large as possible. the land is bordered by water on two sides. There are three options for the farmer Option 1) have two sides ...
*May 29, 2014*

**math **

Rona bought a length of rope. She cut off 1 meter of rope. Now she has 3 meters of rope. How much rope did Rona buy?
*May 28, 2014*

**math**

Len buys 24 centimeters of blue trim and some gold trim. She buys a total of 54 centimeters of trim. How much gold trim does Len buy?
*May 28, 2014*

**math**

Ray has a board that is 16 feet long. He cuts off 11 feet to make a shelf. What is the length of the board that is left?
*May 28, 2014*

**Calculus**

An inverted conical tank is 3m tall and 1m in diameter at its widest point. The water is being pumped out of a spout 2m above the top of the tank. Recall that the density of water is = 1000kg/m^3 (a) Find the work needed to empty the tank if it is full. Include units. (b...
*May 18, 2014*

**Ethics in Criminal Justice**

Frankly, I don't think ANYTHING justifies convicting an innocent person; but, if I have to choose one, I would choose "B".
*May 15, 2014*

**math**

a parking lot charges $1.50 for the first hour of parking and 55 cents for each additional half hour how much would it cost to park a car from 12:45pm to 6:15 pm
*May 13, 2014*

**7th grade math**

Computer catalog has a computer monitor that is 19 inches. The 19 inches is the diagonal distance across the screen. If the screen is 10 inches in height, what is the width of the screen to the nearest inch?
*May 8, 2014*

**Math**

Two vans leave a parking lot at the exact same time. A few minutes later, car 1 is 8 miles due east of the parking lot and car 2 is 15 miles due south of the lot. How far a part are the two cars in miles?
*May 8, 2014*

**statistics (7)**

a) I think the question requires the use of the t-distribution. standard error=statistic/sqrt(45) =65/sqrt(45)=9.689 critical value: df=45-1=44, area=.025 so t=2.015 margin of error=t*SE=19.52 b) Confidence interval: Use t-distr: sample mean +- margin of error =273 +- 19.52 =(...
*April 26, 2014*

**Math (6)**

The lines do intersect. sqrt(x) = x-2 x =(x-2)^2 =x^2-4x + 4 x^2-5x+4=0 (x-1)(x-4)=0 x=1,4 but 1 does not work if you plug in x=1 to both equations, so the only answer is x=4.
*April 26, 2014*

**Chemistry**

.708=(0.5)^(4.00/half life) Take log on both sides and rearrange equation to solve for half life. -.150=(4.00/half life)*-.301 (4.00/half life)=.498 half life = 8.03 min
*April 26, 2014*

**business**

When creating a data set, historical costs should be:
*April 9, 2014*

**Calculus Help**

The County Roads Department is stockpiling salt for use next winter. The salt is being unloaded from railroad cars by a conveyor belt at a rate of 20 cubic feet per minute. The salt falls into a conical pile whose diameter at the base is four times the height of the pile. At ...
*April 7, 2014*

**Calculus Help**

find dy/d(theta) theta=2 , if y=sin(pi/(square root(theta^2+5))) Show steps thanks!!!
*April 7, 2014*

**organic chemistry**

For proton NMR spectra, does a peak at 0 ppm indicate anything significant or is it likely to be a signal arising from a solvent?
*April 7, 2014*

**Calculus Help Please!!! **

find the derivative of the function. Simplify where possible. F(theta)=arcsin(square root of (sin9(theta)))
*March 20, 2014*

**Math**

If there are 6 red tiles and 5 blue tiles in a box, what are the chances that you will pick a red tile without looking?
*March 5, 2014*

**math**

Anthony wishes to sell a $5,000 fixed-rate bond with a 3% coupon. The bond has two years left to maturity. What is the most money this bond could be worth?
*March 3, 2014*

**algebra**

Is the following inequality always,sometimes,never,true,2(8x-4)-2 x<14x+12 thank you
*February 25, 2014*

**algebra**

Is the following always,sometimes,never,true,6+8x-9=11x+14-3 x
*February 25, 2014*

**algebra**

Is the following inequality always,sometimes,never,true 2(8 x-4)-<14 x+12
*February 25, 2014*

**algebra**

Solve the compound inequality graph solution-2<2x-4<4 answers are 0<x<-2, 3<x<6, 1<x<4, 1<x<0
*February 24, 2014*

**algebra**

Solve the equation check for extraneous solution 6|6-4 x|=8 x+4answers are x=1, x=5/2.or x=2, x=5/2, x=5/2or x=1
*February 24, 2014*

**algebra**

A furniture maker uses the specification 19.88<w=20.12 for the width w in inches of a desk drawer write the specification as an absolute answers are 1w-0.24|<20.12, 1w-20|<0.12, 1w-20|<0.24, 1w-0.12|<20
*February 24, 2014*

**math**

lucy has a collection of buttons 2/3 of her buttons are square and 2/8 of her buttons are round. does lucy have more square buttons or round buttons?
*February 20, 2014*

**math**

on monday carlos ran 1/8 of a mile. on wednesday he ran 5/6 of a mile. carlos ran 3/8 of a mile on friday. which day did calos run the farthest?
*February 20, 2014*

**Life.science**

in the moss why the sporophyte is sometimes referred to as a semi parasite.
*February 17, 2014*

**math 209**

which of the following conclusions is true about the statement below? x^2= square root x
*February 11, 2014*

**physics**

Buffy is rolling along in her 11.1 kg wagon at 4.6 m/s (in the positive direction) when she jumps off the back. She continues to move forward at 1.5 m/s relative to the ground. This causes her wagon to go speeding forward at 13.03 m/s relative to the ground. How much does ...
*February 9, 2014*

**physics**

A man is in a boat out away from shore. Th mass of the man, the boat and everything in it is 210 kg. The boat is not moving. The man throws and anchor with a mass of 26 kg straight out from the boat with a speed of 6.6 m/s. What is the resulting speed of the boat?
*February 9, 2014*

**Math Algebra**

thanks
*February 1, 2014*

**Math Algebra**

Two times the smallest of three consecutive odd integers is one less than the largest integer. Find the integers
*February 1, 2014*

**finance**

Coogly Company is attempting to identify its weighted average cost of capital for the coming year and has hired you to answer some questions they have about the process. They have asked you to present this information in a PowerPoint presentation to the company’s ...
*January 27, 2014*

**Physics**

The velocity vector V1 has a magnitude of 4.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 3.0 m/s. The sum of the two is V3, so that V3 = V1+V2 A. The x-component of V3 can be 3.0 m/s B. The magnitude of V3 can be 8.0 m/s C. The magnitude ...
*January 21, 2014*

**Physics**

A car (m = 670.0 kg) accelerates uniformly from rest up an inclined road which rises uniformly, to a height, h = 35.0 m. Find the average power the engine must deliver to reach a speed of 23.9 m/s at the top of the hill in 22.7 s(NEGLECT frictional losses: air and rolling, ...)
*January 6, 2014*

**STATISTICS**

Program evaluation differs from policy analysis with respect to _____. a. the time dimension within the policy process b. the cost c. the time d. the role of the stakeholder
*December 9, 2013*

**STATS2**

Policy analysis searches for _____? a. the generation of information and collection of evidence of the benefits b. the consequences that would follow the implementation of various courses of action c. fluidity and does not always “start at the beginning and conclude at ...
*December 9, 2013*

**science**

9.8 meters per sec squared.
*December 9, 2013*

**chem help**

How many moles of N are there in 2.6 moles of NaNO3?
*December 9, 2013*

**STATS**

Policy analysis searches for _____. a. infeasible courses of action b. the generation of information and collection of evidence of the benefits c. the consequences that would follow the implementation of various courses of action d. fluidity and does not always “start at ...
*December 9, 2013*

**math **

number sense what division sentence means the same as the following subtraction sentences? 12-4=8 8-4=4 4-4=0
*December 5, 2013*

**Math**

What division sentence means the same as the following subtraction sentences? 12- 4 = 8 8-4=4 4-4=0
*December 5, 2013*

**STATISTICS **

To calculate the mean for grouped data, which of the following steps must be completed? a. multiply the number of subjects within each category by the value of that category b. divide the results of the multiplication c. multiply by the number of subjects d. multiply each ...
*December 2, 2013*

**Windows 7 operating system**

A medium-sized survey company stores sensitive government data that is used as part of the study. A security requirement from the government requires that all sensitive data must remain stored at the company's head office. All staff and the head office network have ...
*December 1, 2013*

**Statistics 2**

To calculate the mean for grouped data, which of the following steps must be completed? a. multiply the number of subjects within each category by the value of that category b. divide the results of the multiplication c. multiply by the number of subjects d. multiply each ...
*December 1, 2013*

**Statistics 1**

Professor White asked his students to put the number of hours each studied for the final exam on a piece of paper and turn that paper in with the exam. The pieces of paper indicate that students studied 10, 3, 4, 25, 1, 4, 4, 12, 6, 8, and 10 hours. What is the mean number of ...
*December 1, 2013*

**science**

Photosynthesis
*December 1, 2013*

**statistics**

In a distribution of sentence lengths in months like the following: 6, 12, 10, 18, 24, 360; which statistic would a researcher not want to report? a. standard deviation b. mean c. range d. raw numbers
*November 29, 2013*

**science**

The half-life of uranium-235 is 713 million years. Suppose a fossil originally had 26 grams of uranium-235. A geologist had the fossil tested and found that it now has only 3.25 grams of uranium-235. Approximately how old is the fossil?
*November 22, 2013*

**physics**

You hold a bucket attached to a rope, and in the bucket is a 500.0 g rock. You swing the bucket so the rock moves in a vertical circle 1.6 m in diameter. What is the minimum speed the rock must have at the top of the circle if it is to always stay in contact with the bottom of...
*November 11, 2013*

**physics**

You hold a bucket attached to a rope, and in the bucket is a 500.0 g rock. You swing the bucket so the rock moves in a vertical circle 1.6 m in diameter. What is the minimum speed the rock must have at the top of the circle if it is to always stay in contact with the bottom of...
*November 11, 2013*

**physics**

You hold a bucket attached to a rope, and in the bucket is a 500.0 g rock. You swing the bucket so the rock moves in a vertical circle 1.6 m in diameter. What is the minimum speed the rock must have at the top of the circle if it is to always stay in contact with the bottom of...
*November 11, 2013*

**physics**

You hold a bucket attached to a rope, and in the bucket is a 500.0 g rock. You swing the bucket so the rock moves in a vertical circle 1.6 m in diameter. What is the minimum speed the rock must have at the top of the circle if it is to always stay in contact with the bottom of...
*November 11, 2013*

**science**

on the windward side of the mountain, should the relative humidity of the parcel change as it rises from 3000 feet to 6000 feet? Why?
*November 6, 2013*

**Math**

The flag pole is 14 feet high it cast a shadow of 5 feet. Dan is six feet tall what high is his shadow
*November 5, 2013*

**english**

what does it mean to include citation with a quote
*November 3, 2013*

**q**

whats the point of an ap class
*November 2, 2013*

**geometry**

a point (-3,2) lies on a circle whose equation is (x+3)squared +(y+1)squared=rsquared what is the radius of the circle plz put steps
*October 30, 2013*

**geometry**

a point (-3,2) lies on a circle whose equation is (x+3)squared +(y+1)squared=rsquared what is the radius of the circle plz put steps
*October 30, 2013*

**english**

i need 4 symbols that represnt me and i have no idea how to know what they are
*October 29, 2013*

**statistics**

.0013
*October 27, 2013*

**geometry**

what year does college look at gpa i got a 3.o for my midterm and if i get 4.0s all other erms of my freshmen year and rest years can i make it to a uc
*October 22, 2013*

**question**

does it matter the grades of freshmen year
*October 19, 2013*

**question**

does anyone know in ca the requirements to get a permit for a 15 and half year old
*October 17, 2013*

**question**

how much does a AP class give in bump for gpa
*October 17, 2013*

**geomrtry**

how many sides does a regular polygon have it each exterior angle measures 40 degrees
*October 15, 2013*

**Statistics**

In a survey, 55% of the voters support a particular referendum. If 30 voters are chosen at random, find the standard deviation of the number of voters who support the referendum.
*October 14, 2013*

**Math**

Solve two ways 315/9
*October 3, 2013*

**Algebra**

A cab charges $1.75 for the first mile and $0.25 for each additional mile. Write and solve an inequality to determine how many miles Eddie can travel if he has $15 to spend
*September 25, 2013*

**story elements**

thanks
*September 22, 2013*

**story elements**

what is the word for The lesson of a story should start with a T and is 5 letters long
*September 22, 2013*

**vocab**

What is the problem of a short story
*September 22, 2013*

**english**

Scuttles across the sand, the crab disappeared into the surf. correct way to write the derivative scuttle as sscuttles
*September 22, 2013*

**question**

is it better to take physics or chemistry if taking both whats better to take 1st in sophomore year better to take ap statistics or precalculas for becoming an architect
*September 22, 2013*

**english**

sorry i dont understand what your saying
*September 22, 2013*

**english**

sorry number 6 obstruction
*September 22, 2013*

**english**

2. commence 3.scuttles 4.cease 6.precludes
*September 22, 2013*

**Statistics**

I have no idea on how to answer this question... "Use technology or a standard normal distribution table to find the area to the left of z=1.58. Do I plug in 1.58 in my calculator to find the answer?
*September 13, 2013*

**Statistics**

I have no idea on how to answer this question... "Use technology or a standard normal distribution table to find the area to the left of z=1.58. Do I plug in 1.58 in my calculator to find the answer?
*September 13, 2013*

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