Tuesday

January 27, 2015

January 27, 2015

Post a New Question | Current Questions

**5th grade math **

Name the compatible numbers used to find the estimate. 1. 725/19 estimate:35 2. 3,641/34 estimate:120 Please show me how to work out these problems.
*Wednesday, April 9, 2014 at 8:53pm*

**9th grade math**

4x^2=80x-400
*Tuesday, April 8, 2014 at 10:57pm*

**3rd grade math**

Explain how you know 6/6 and 1 are equivalent?
*Tuesday, April 8, 2014 at 4:14pm*

**Language arts 7th grade **

Using the image of a dove to represent the idea of peace in a peom is an example of
*Monday, April 7, 2014 at 11:50am*

**Science - Check my answers please (6th grade)**

earth and the moon are kept in their respective orbits due to the influence of ? a) inertia b) gravity c) both inertia and gravity d) neither inertia and gravity Is it c) both inertia and gravity?
*Monday, April 7, 2014 at 11:41am*

**6th Grade Science - Help**

Which of Earth's spheres has the most mass? 1. atmosphere 2. hydrosphere 3. geosphere 4. biosphere Is it Biosphere?
*Saturday, April 5, 2014 at 10:12am*

**math 7**

grade 7 students were surveyed to determine how many hours per day they spent on various activities. The results are shown in the circle graph below. about how many hours per day altogether were spent on watching TV and homework?
*Thursday, April 3, 2014 at 2:15pm*

**Maths**

Jim has grades of 84, 65, and 76 on three math tests. What grade must he obtain on the next test to have an average of exactly 80 for the four tests?
*Thursday, April 3, 2014 at 1:43am*

**3rd grade math**

what is the next number in the sequence 1,3,9,27,______ I'm confused on the skip counting they use.
*Tuesday, April 1, 2014 at 9:51am*

**Math for grade 6 peace**

The computer club is having a fundraiser to help pay for a trip to the science museum. So far they have raised $96, which is only 48% of their goal. How much money are they trying to raise?
*Friday, March 28, 2014 at 6:25pm*

**Need 8 grade math help quick please!**

I don't understand this. I don't get exactly what I'm supposed to do with the P(parenthes) thingy or how each question differs from the next. Theoretical and Experimental Probability: A number cube with the numbers 1 through 6 is rolled. Find the given probability...
*Friday, March 28, 2014 at 3:14am*

**3rd grade math**

suppose there are 2 pieces of the cake left over but you dont know how many pieces there were in the whole cake. explain how you could find the number of pieces in the whole cake if taylor told you that 1/5 of the cake was left.
*Friday, March 28, 2014 at 12:06am*

**3rd grade math**

suppose she cut the cake into 8 equal size pieces and 6 people at all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake. You can show your work in a drawing.
*Thursday, March 27, 2014 at 11:56pm*

**5th Grade Math**

Keith played some games of chess at a tournament. He recorded the results of the games on the table shown. Game Results: Number of Games TIES 4 WINS 12 Losses 4 If Keith plays 10 more games, how many of the 10 games is he likely to win? A. 6 games B. 8 games C. 4 games D. 2 games
*Thursday, March 27, 2014 at 7:36pm*

**6th Grade Math**

A drawer contains 3 blue ribbons, 4 red ribbons, and 3 green ribbons. A ribbon is randomly chosen from the drawer, replaced, and another ribbon is chosen. Find each probability"
*Wednesday, March 26, 2014 at 7:58pm*

**Grade 12 Calculus**

A rectangular piece of paper with perimeter 100 cm is to be rolled to form a cylindrical tube. Find the dimensions of the paper that will produce a tube with maximum volume. I have made it up to getting an equation for V(w).
*Tuesday, March 25, 2014 at 7:49pm*

**English 10th grade**

In "Like the Sun," all of the following would be considered "casualties" of Sekhar's truth except his • children • colleagues • headmaster • wife It almost seems it could be any of them but I need the right one.
*Tuesday, March 25, 2014 at 5:56pm*

**Convert fraction decimal and percent**

On Friday math test. will missed 5 problems out of 25. If each problem was equally weighted, what was will's grade on the test? A. 20% b. 75% c. 80% d. 85%
*Tuesday, March 25, 2014 at 3:48am*

**math**

Mr. Gonzalez's sixth-grade class is putting on a play. He reserved the first 6 rows of the auditorium for family members and friends of the 24 students in his class. If each row contains 17 seats and each student can invite the same number of guests, how many guests can ...
*Monday, March 24, 2014 at 6:48pm*

**math**

The 6th grade classes have started a contest to collect cans for recycling. The first class to reach 500 cans will win. The chart below shows the two classes in the lead. How many cans does each class have left to meet their goal? show the work .
*Monday, March 24, 2014 at 2:21pm*

**Math - PreCalc (12th Grade)**

Which rectangular equation corresponds to these parametric equations? x = 0.2sec t and y = -0.25tan t A) 25x^2 − 16y^2 = 1 B) 25x^2 + 16y^2 = 1 C) x^2 − 16y^2 = 25 D) 25y^2 − 16x^2 = 1 E) 4x^2 − 16x^2 = 1
*Monday, March 24, 2014 at 10:24am*

**Math - PreCalc (12th Grade)**

How many different basketball teams of 5 players can be created from a group of 7 players?
*Monday, March 24, 2014 at 10:14am*

**Math - PreCalc (12th Grade)**

Which equation represents a hyperbola whose foci lie at (2, 7) and (2, -3)?
*Monday, March 24, 2014 at 9:45am*

**literacy**

im in grade 10 and if i do the osslt literacy practice tests. will someone on here mark my writing tasks? i can mark the multiple choice questions on my own but i just need someone to mark the writing stuff
*Friday, March 21, 2014 at 10:41pm*

**Math - PreCalc (12th Grade)**

The function f(x) = 6x + 5 is defined over the interval [-1, 4]. If the interval is divided into n equal parts, what is the value of the right end point of the first rectangle?
*Friday, March 21, 2014 at 11:42am*

**Math - PreCalc (12th Grade)**

What is the value of this expression when n approaches infinity? 4−(4/n)+(5/n)+(15/3n^2) A) 20 B) 10 C) 5 D) 4 E) 1
*Friday, March 21, 2014 at 11:33am*

**Math - PreCalc (12th Grade)**

How many 4-digit numbers are possible if the hundreds digit is 8 and if repetition of digits is allowed? A) 100 B) 1,000 C) 9,000 D) 900 E) 1,800
*Friday, March 21, 2014 at 11:08am*

**Math - PreCalc (12th Grade)**

The function f(x) = x2 − 5 is defined over the interval [0, 5]. If the interval is divided into n equal parts, what is the area of the kth rectangle from the right? A) [(2+k(5/n))^2+5](5/n) B) [(k(3/n))^2−5](5/n) C) [(k(5/n))^2+5](5/n) D) [(k(3/n))^2+3](5/n) E) [(k...
*Friday, March 21, 2014 at 10:53am*

**Math - PreCalc (12th Grade)**

A fair coin is tossed 3 times in a row. If X is the number of heads counted, what is the mean of the probability distribution of X? A) 1.0 B) 1.5 C) 2.0 D) 2.5 E) 3.0
*Friday, March 21, 2014 at 10:01am*

**Math - PreCalc (12th Grade)**

The function f(x) = 2x + 1 is defined over the interval [2, 5]. If the interval is divided into n equal parts, what is the value of the function at the right endpoint of the kth rectangle? A) 2+3k/n B) 4+3k/n C) 4+6k/n D) 5+6k/n E) 5+3k/n
*Friday, March 21, 2014 at 9:57am*

**Math - PreCalc (12th Grade)**

Use the inverse matrix to solve this system of equations: 4x+3y=7.5 7x+9z=14 4y-z=8.3 4,3,0 7,0,9 0,4,-1
*Friday, March 21, 2014 at 9:20am*

**Math - PreCalc (12th Grade)**

If Sn = 1 + 6 + 11 + 16 + 21 + 26...... where an = (5n − 4), what would be the mathematical expression represented by Sk + ak + 1? A) (k(5k − 3)/2)+ 5k + 1 B) (k(5k − 3)/2)+ 5k − 4 C) (k(5k − 3)/2)+ 5k + 2 D) (k(5k − 3)/2)+ 5k − 3 E) (...
*Thursday, March 20, 2014 at 1:05pm*

**Math - PreCalc (12th Grade)**

What is the slope of the tangent line passing through the point (2, 3) of the graph of this function? f(x)=x^2+2x−5 A) 1 B) 2 C) 3 D) 4 E) 6 f(2)=2^2+2(2)-5 f(2)=3 so is it c?
*Thursday, March 20, 2014 at 12:58pm*

**Math - PreCalc (12th Grade)**

What value must be defined for f(4) to remove the discontinuity of this function at x=4? f(x)=(x^2−16)/(x−4) A) 0 B) 4 C) -4 D) 8 E) -8 f(4)=(4^2−16)/(4−4) f(4)=0/0 you can't divide by zero. I don't understand the question.
*Thursday, March 20, 2014 at 12:38pm*

**Math - PreCalc (12th Grade)**

If Sn represents the sum of the squares of the first n natural numbers, use proof by induction to find which of the following expressions for Sn is true? A) Sn = n(n − 1)/3 B) Sn = n(2n − 1)/3 C) Sn = n(n + 1)/3 D) Sn = n(n + 1)(2n + 1)/3
*Thursday, March 20, 2014 at 12:23pm*

**A Peculiar Question**

Is either a B+ or an A- considered a terrible grade? If I received a B+ for two essays that I was assigned and then an A- for another, will these grades ultimately cause a decrease in my GPA? I want to enter into either a film or art college, and I want to retain my 4.0 GPA ...
*Wednesday, March 19, 2014 at 9:29pm*

**A Peculiar Question**

If I have been given a B+ for two essays, it is considered a terrible grade? Will it affect my report card?
*Wednesday, March 19, 2014 at 4:20pm*

**Math - PreCalc (12th Grade)**

What is the first natural number that causes the statement 1 + 3 + 5 +... + (2n − 1)<=4n − 1 to fail? A) 2 B) 3 C) 4 D) 5 E) 6
*Wednesday, March 19, 2014 at 12:05pm*

**Math - PreCalc (12th Grade)**

What does this function show at x = 5? f(x)=x^2−25/x−5 A) removable discontinuity B) jump discontinuity C) infinite discontinuity D) continuity E) none of the above
*Wednesday, March 19, 2014 at 12:00pm*

**Math - PreCalc (12th Grade)**

What is the first natural number that causes the statement:(2+3)^n<=4^n+3^n to fail? A) 1 B) 2 C) 3 D) 4 E) 5
*Wednesday, March 19, 2014 at 11:56am*

**Math - PreCalc (12th Grade)**

What is the right-hand limit of this function at x=2? g(x)=x^2−3/x−3 A) -1 B) 0 C) 1 D) 2 E) 3
*Wednesday, March 19, 2014 at 11:54am*

**Math - PreCalc (12th Grade)**

What is the left-hand limit of f(x)=|x−3|/x−3 as x approaches 3? A) 1 B) 2 C) 0 D) -1 E) -2
*Wednesday, March 19, 2014 at 11:14am*

**Term Paper question**

I've started writing a term paper and wondering if there is anyone or any place that I could submit my paper and get feedback before it's graded? It's worth a large portion of my grade & I'd like someone to review it when I'm done.
*Tuesday, March 18, 2014 at 10:52pm*

**vocabulary power unit 5 grade 6**

I am trying to find the meaning of this homework: cicle the letter of the word that is a synonym of the boldfaced word. Can you please help me...PLEASE!!!!
*Tuesday, March 18, 2014 at 12:49am*

**math**

The box-and-whisker plots show data for the test scores of four groups of students in the same class. Which plot represents a group with a median grade below 65?
*Monday, March 17, 2014 at 6:41pm*

**Grade 10 English**

Based on the movie, The Red Violin what are 3 ways it differs from most Hollywood blockbusters?
*Monday, March 17, 2014 at 5:56pm*

**MS.SUE**

thats my other 2 sisters we go to the same school in the same grade and how do u know our current location
*Monday, March 17, 2014 at 4:03pm*

**MATH 104**

Last semester, a certain professor gave 24 As out of 244 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives a grade.)
*Saturday, March 15, 2014 at 11:04pm*

**Grade 10 English**

We need to read the story The Stone Carvers I need help with finding important quote s in chapter 1 to 2
*Friday, March 14, 2014 at 12:01pm*

**Math**

Susan designed a circular pool with a diameter of 25 meters. What is the area of the bottom of the pool? Round to the nearest tent. Please help this is due tomorrow and I need to up my grade.
*Monday, March 10, 2014 at 8:01pm*

**6th grade math - statistics**

Can you explain why Q1 = 3.5 and Q3 is 9 out of this dataset 0, 1, 3, 4, 6, 7, 7, 7, 8, 10, 12, 12. My answers were: Assuming median would be 7 (using numbers in positions 6 and 7 where 7+7/2 = 7) Q1 dataset would be 0,1,3,4,6; Q1 = 3 Q2 dataset would be 7,8,10,12,12; Q3= 10 ...
*Monday, March 10, 2014 at 5:17pm*

**math**

100 eighth grade students were interviewed about their favorite subject at school. 45 said Math, 70 said English, and 5 said neither. Using a Venn diagram, how many said both?
*Monday, March 10, 2014 at 4:01pm*

**Asking For Your Opinion:**

Would French 1 be a good course to take in 9th grade?
*Friday, March 7, 2014 at 10:55am*

**6th grade science**

A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple? I don't know how to do this please help!
*Wednesday, March 5, 2014 at 12:09pm*

**Math**

Doug needs to purchase four sheets of marine grade plywood to make repairs on the roof of his garage. Depending on the type of tree used to make the wood, the cost of the plywood is between $42 and $45 per sheet. Which of the following is a possible amount that Doug can spend ...
*Tuesday, March 4, 2014 at 2:08pm*

**6th grade math**

Mark is alternating sqaure tiles with lengths of 4in and 2 in. along the edge of a 6 foot long wall. If he starts with a 4 in tile and ends with a 2 in tile, how many tiles will he use in all? Draw a diagram to solve.
*Monday, March 3, 2014 at 2:07pm*

**Math-5th grade.HELP!**

a 12 gallon tank is filled with water at the rate off 1/4 gallon in 5 seconds. At this rate, how long will it take to fill 5/6 of the tank? ?????
*Saturday, March 1, 2014 at 12:49pm*

**5th grade math**

In the multiplication problem at the right different letters stand for different digits, and ABC and DBC each represent a three digit number. What number does DBC represent? Two answer possible; give one
*Saturday, March 1, 2014 at 12:20pm*

**Probability**

Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p , where 0 < p < 1 . 1. Let A be the event that there are 6 Heads in the first 8 tosses. Let B be the event that the 9th toss results in Heads. Find P(B|A) and express it...
*Friday, February 28, 2014 at 12:28am*

**English Grade 11**

Explain how the meaning of each of the following words is related to the root work -litera- mean "letter." 1. literate (adj.) 2. literature
*Wednesday, February 26, 2014 at 12:02pm*

**math**

50 students took a test. 24 recieved a better than average grade. What percent scored above the average?
*Tuesday, February 25, 2014 at 8:53pm*

**physics**

A 1.761 km car is moving down a road with a slope (grade) of 12% at a constant direction and magnitude of the frictional force? Please show step by step if possible, I am extremely lost! Thanks!
*Tuesday, February 25, 2014 at 8:05pm*

**4 grade math**

What is the sum of4/10 and 40/100
*Monday, February 24, 2014 at 10:03pm*

**5th Grade Math**

3/4 x 1/2 = 3/8 Need to write a word problem for this equation, and then my daughter has to draw a model to show the product. She doesn't believe that the equation I gave her is useable so I am turning to here. Thank you!
*Monday, February 24, 2014 at 7:59pm*

**7th grade**

MS SUE- WHY DO YOU HELP STUDENTS CHEAT ON THEIR TESTS. THEY ARE POSTING ACTUAL QUESTIONS HERE
*Monday, February 24, 2014 at 7:52pm*

**English Grade 11**

What is the literary term for an event that is different from what the readers or the characters will expect to happen? A. situational irony B. ambiguity C. verbal irony D. contradiction Working on my workbook pages for this week and I don't understand this one: please ...
*Monday, February 24, 2014 at 5:09pm*

**6th grade social studies**

I need help unscrambling these letters to form two words: inenidj tcain They go along with the phrase ______ _____and Persia.
*Monday, February 24, 2014 at 7:15am*

**8th grade science **

How many (total) of each atom are there in the reactants and the products of cellular respiration? PLEASE HELP ME
*Sunday, February 23, 2014 at 3:58pm*

**math**

The grade of a road is 6%. What is its angle of elevation?
*Thursday, February 20, 2014 at 1:15pm*

**Math 3rd grade**

Which can not be a length measured ti the nearest 1/4 inch.
*Wednesday, February 19, 2014 at 11:58pm*

**shurley english**

third grade, direct object, pattern 2
*Tuesday, February 18, 2014 at 8:12pm*

**Reading & Math**

My daughter is in the third grade and she is reading on a level of 20 she should be at level 34. Please help they are threating to retain her and I don't want that. I need suggestions, desperate mom.
*Tuesday, February 18, 2014 at 5:42pm*

**Math 5th grade**

Look for a pattern. Have a rectangle with number 10, 16 and 23 in the corners.the circle in side with 9, 12 and 24. Place the numbers from 8 to 26 either inside or outside the circle according to the pattern shown. Please help!!!
*Monday, February 17, 2014 at 11:30am*

**Math **

Mr.Fox's fourth grade class of 20 students had an average of 72% on their last test. However, Rose's mark of 76% had been incorrectly recorded as 56 %. What was the correct class average for the test? A) 82% B) 80% C)73% D) 62%
*Sunday, February 16, 2014 at 1:03pm*

**8th grade science**

Explain how the sun's temperature will change over time as it ages.
*Saturday, February 15, 2014 at 3:17pm*

**Science 8th Grade**

What was the hiker's average velocity? Distance = 6km West Starting Time = 9:45 Ending Time = 10:45 A. 4.0 km/h south B. 0.10 km/h north C. 10 km/h south west D. 6 km/h west
*Friday, February 14, 2014 at 11:08am*

**Math**

ted needs an average of at least 70 on his 3 history tests. he has already scored 85 and 60 on 2 of them. what is the minimum grade ted need on his 3rd test?
*Thursday, February 13, 2014 at 7:56pm*

**Math**

Is anyone in 8th grade connections academy and on unit 1 lesson 10 test
*Thursday, February 13, 2014 at 7:03am*

**Grade 8 math**

What is the greatest possible product of any two numbers in this list? Explain your answer. -3,-7,-15,6
*Tuesday, February 11, 2014 at 5:21pm*

**10th grade Science**

Explain how a drug sits on acetylcholine receptors will affect muscle function? Is it because the drug would act as a blocking agent to prevent the receptors from gathering information on what to do?
*Saturday, February 8, 2014 at 1:27pm*

**Chemistry**

It says 8. In a similar experiment Mary Moreorlesss was to determine the loss of weight when a crucible of potassium chlorate was heated to drive off the oxygen. After finishing the experiment she concluded the potassium chlorate contained 24.0% oxygen. Why did miraculous(...
*Thursday, February 6, 2014 at 10:25pm*

**grade 12 calculus and vectors**

Determine the average rate of change form x = 1 to x = 4 for each function. a) y= x b) y=x^2 c) y=x^3 d) y=7
*Thursday, February 6, 2014 at 5:07pm*

**9th grade algebra**

suppose the population of deer in a state is 10,280 and is growing 1% each year. predict the population after 5 years.
*Thursday, February 6, 2014 at 11:47am*

**Math**

The 80 students in the 5th grade at north side elementary school voted for their favorite animal after a trip to the zoo.the elephant received 3/5 of the votes.how many votes did the elephant receive.
*Wednesday, February 5, 2014 at 8:26pm*

**ART please help me i just need to be sure about'em**

this type of ad implies the product will make you beautiful. slogan testimonial icon rich-and-famous i think its testimonial but i want to be sure. this happens as symbolic, traditional dress in africa is replaced with western styles of clothing. the dress becomes more popular...
*Tuesday, February 4, 2014 at 4:02pm*

**ART please help me i just need to be sure about'em**

this type of ad implies the product will make you beautiful. slogan testimonial icon rich-and-famous i think its testimonial but i want to be sure. this happens as symbolic, traditional dress in africa is replaced with western styles of clothing. the dress becomes more popular...
*Tuesday, February 4, 2014 at 3:59pm*

**Math 3rd grade**

2-Eric and Frank want to equally share 4/3 feet of rope. what length of rope should each friend get? Explain how to use a drawing to help solve the problem.
*Monday, February 3, 2014 at 6:02pm*

**math 6th grade**

the bridge span is 360 meters long. the bridge is 30 meters shorter than the main span. write and solve an equation to the the length of the main span
*Monday, February 3, 2014 at 3:04pm*

**2nd grade math**

Mr foster places 11 garden lights along an 80 meter path. Each light is placed an equal distance apart. How far away is the sixth garden light from the second?
*Sunday, February 2, 2014 at 8:32pm*

**6th grade honor science**

having trouble with this question it was fill in the blank it was In a food web, an organism that eats an animal is a blank consumer
*Thursday, January 30, 2014 at 8:54pm*

**5th Grade Math**

Question: Each face of a prism other than the bases is what two-dimensional shape? Please help I'm really confused and need help.
*Monday, January 27, 2014 at 9:49pm*

**Fractions**

Sam has 9 yellow pencils in his desk. 3/4 of his pencils are yellow. How many pencils does Sam have in his desk? 3rd grade fraction, slightly confusing to me
*Sunday, January 26, 2014 at 12:04pm*

**Science - 6th grade: CHECK MY ASNWER**

If changing conditions lead to decreased oxygen levels in the stream, the carrying capacity of the stream for the trout will decrease. Oxygen level in water is therefore a(n) _____________ with respect to the number of trout that a particular stream can support. Is it "...
*Saturday, January 25, 2014 at 8:32pm*

**8th Grade History**

In which region do rivers flow into a basin but evaporate before they make it to a larger body of water? A.the Coastal Plains B.the Great Plains C.the Great Basin D. the Everglades Thank ya!!! <3
*Saturday, January 25, 2014 at 4:58pm*

**10th grade Science**

Explain, physiologically, how you would decide to use ice or heat on an injury? My book doesn't have any good info on this question. Is there a reputable website or article to get info to answer this question?
*Friday, January 24, 2014 at 7:27pm*

**8th grade math**

What is the volume of a crate with the dimensions of 4ft by 3ft by 2ft?
*Thursday, January 23, 2014 at 11:08pm*

**3rd Grade**

Casey has 10 olives to eat. She wants to have the same number of olives at lunch and at dinner. She wonders how many olives she should eat at each meal. Which number sentence fits this problem?
*Thursday, January 23, 2014 at 7:37pm*

**1st grade english**

where you say a small mug in a sentence do you say small or little
*Wednesday, January 22, 2014 at 3:17pm*

**Math**

A real estate agent earns a weekly salary of $200. This week, he sells one home for $120,00 and is paid a commission rate of 5%. Find his total earnings for this week. (7th grade math)
*Tuesday, January 21, 2014 at 4:01pm*

**5th Grade Math**

Express the fraction(s) 6/7 and 12/10 as the sum of two or three equal fractional parts. Rewrite each as a multiplication equation. Any help is appreciated.
*Sunday, January 19, 2014 at 4:35pm*

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