Tuesday

August 4, 2015

August 4, 2015

**statistics**

An 8th grade history teached studied the statistics for her mid-term exam. The average grade for the mid-term was 84 points, and the standard deviation was 8 points. The Z-score for a student who scores 90 on the exam is: 84-90/8= -0.75
*Tuesday, June 3, 2014 by Jodi *

**Calculus**

A cable is suspended from two towers with a distance of 100m between them. The 1st tower has a height of 50m and the 2nd tower has a height of 70m from the ground. The lowest part of the cable has a distance of 47m from the ground. Find the length of the cable
*Sunday, May 25, 2014 by zxc*

**Math 8th Grade!!!!**

27 - (-9) (-2) ÷ 3 * (-4) - 0 - 33 - (-39)
*Wednesday, May 21, 2014 by Max*

**math 8th grade**

-15 - (3-7) + 6 * (-2) + (-8) - 9
*Wednesday, May 21, 2014 by anonymus*

**math**

Taylor surveys students in one grade level who own at least one pet. She finds that 50% of the students surveyed own 2 pets, 3 students own 3 pets each, and 2 students own 4 pets each. Eight of the students in the grade own 1 pet. Considering the number of pets as the random ...
*Monday, May 19, 2014 by Anonymous*

**math**

Suppose that you are taking a course that has three exams which count for three-fifths of your grade and a final which counts for two-fifths of your grade. On your first three tests your scores on were 84, 72, and 96. To get an B in the course, you must have an average of at ...
*Friday, May 9, 2014 by anonymous*

**Science**

GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can be found on the ...
*Sunday, May 4, 2014 by Anonymous*

**Science **

GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can be found on the ...
*Sunday, May 4, 2014 by Hanna*

**4 the grade math**

What's 3/4 of blank=75
*Tuesday, April 29, 2014 by Elsana*

**POL201**

Fredick Winslow Tylor was concern with all but the following a. making workers feel appreciated b. making 1st class worker out of 2ne class worker c. efficiency d. good management
*Monday, April 28, 2014 by Ella*

**Calculus**

The following are about an infinite region in the 1st quadrant between y=e^-x and the x-axis. B)Find the volume of the solid generated by revolving the region about the y-axis Part A was solved below. Does anyone know how to do Part B?
*Sunday, April 27, 2014 by Tim*

**Calculus**

The following are about an infinite region in the 1st quadrant between y=e^-x and the x-axis. A) Find the area of the region B)Find the volume of the solid generated by revolving the region about the y-axis
*Sunday, April 27, 2014 by Tim*

**Physics 194**

Light of wavelength 630 nm passes through a grating and then onto a screen located several meters from the grating. The 1st order bright band is located 0.26m from the central maximum. Light from a second source produces a band 0.21m from the central maximum. Determine the ...
*Friday, April 25, 2014 by BULturp*

**math**

The account balance on April 1st is $50.51. On April 15th a payment of $15.00 is made. On April 25th a purchase of $19.27 is made. The annual rate is 18%. What is the finance charge using the previous balance method? What is the new balance?
*Monday, April 14, 2014 by Anonymous*

**HELP! 5th grade math**

Trying to help my child in 5th grade. Shannon pours 4 different liquid ingredients into a bowl The sum of the liquid ingredients is 8.53 liters. Two of her measurements are in milliliters and two of her measurements are in liters. Give an example of possible measurements for ...
*Sunday, April 13, 2014 by Sara *

**9th grade math**

4x^2=80x-400
*Tuesday, April 8, 2014 by trent*

**9th grade math**

x^2+8x+16=25
*Tuesday, April 8, 2014 by trent*

**9th grade math**

4m^2-24m+36=0
*Tuesday, April 8, 2014 by trent*

**3rd grade math**

Explain how you know 6/6 and 1 are equivalent?
*Tuesday, April 8, 2014 by Lindsey*

**math - 6th grade**

HELP! How do I solve for x: 4x+2=3x+9
*Thursday, April 3, 2014 by Skylar*

**4th grade math**

What is 1. 2/3 + 3/6 = 2. 3 1/10 + 17/5 = 3. 3 2/6 - 1 5/6 =
*Monday, March 24, 2014 by Mythreyee*

**English **

I'm writing about hearing a certain song can take you back to a moment in your past. I know that the 1st paragraph is thesis and the 2nd is explain what song reflects on past and why. I don't know what i should in include in the 3rd paragraph
*Friday, March 21, 2014 by Anonymous*

**Grade 6 math**

What is 2 to the 2nd power
*Thursday, March 20, 2014 by ronaldo*

**to ms. sue**

what was your 4th grade teacher and why
*Wednesday, March 5, 2014 by tamer*

**6 grade math**

How do you solve this problem: x + 2 1/5 = 7?
*Monday, March 3, 2014 by someone*

**Maths**

I’m a 4-digit number. My 1st 2 digits from the left are divisible by 5. My 3rd and 4th digits from the left are divisible by 9. The sum of my digits is 18. Each of my digit is different. I’m divisible by 4. I’m less than 6000. My units digit is twice my tens ...
*Monday, March 3, 2014 by Zanele *

**Science**

The slevator starts at 1st floor and accelerated 1m/s^2 for 6 seconds and continues at a constant velocity for 12 seconds more and is then stopped in 4 seconds with constant deceleration. If the floors are 3 meters apart at what floor does the elevator stops?
*Sunday, March 2, 2014 by Thor*

**4TH GRADE MATH**

MS T BOUGHT CUPCAKES FOR HER 3RD GRADE CLASS. MS. CASA BOUGHT TWICE AS MANY CUPCAKES AS MS T, AND 4 TIMES AS MANY CUPCAKES AS MS. G. MS. G BOUGHT 241 CUP CAKES. A. HOW MANY CUPCAKES DID MS T BUY? B. MS.. B CAME LATE TO THE PARTY AND HALF OF THE CUPCAKES HAD ALREADY BEEN EATEN...
*Wednesday, February 26, 2014 by DARRYL*

**4 grade math**

What is the sum of4/10 and 40/100
*Monday, February 24, 2014 by micaiah*

**math**

The grade of a road is 6%. What is its angle of elevation?
*Thursday, February 20, 2014 by nic*

**economic**

Suppose, unfortunately , your mathematics and economics professors have decide to give tests 2 day from now and you can spend only a total of 12 hours studying for exams .After some thought, you conclude that dividend your study time equally between each subject will give you ...
*Sunday, February 9, 2014 by thiti*

**economic**

10. Suppose, unfortunately , your mathematics and economics professors have decide to give tests 2 day from now and you can spend only a total of 12 hours studying for exams .After some thought, you conclude that dividend your study time equally between each subject will give ...
*Sunday, February 9, 2014 by thiti*

**12th Grade Vocabulary Antonyms Practice**

Does anyone know of a good place that I can practice 12th grade vocabulary antonyms?
*Saturday, February 1, 2014 by Angela*

**statistics**

What is the probability for a: a. Randomly selected person being a male in grade E? b. Randomly selected male being in grade E? c. Why are the results different?
*Sunday, January 19, 2014 by Anonymous*

**Physics help**

I'm trying to calculate the tension in a rope. The two ropes are holding up a picture frame that is 100N, each rope is at a 45 degree angle. I'm trying to find the value of the tension of the 1st rope. Please help
*Friday, January 10, 2014 by unknown*

**statistics**

Last week Tom had exams in Math and in Spanish. He had a score of 45 on the Math exam and a score of 65 on the Spanish exam. For which class should Tom expect the better grade? a. Math b. Spanish c. The grades should be the same because the two exam scores are in the same ...
*Tuesday, December 31, 2013 by Lyndyc*

**linear optimization**

During a summer session a student enrolls in two courses, psychology for four hours and engineering for three hours. The student wants to use the available time to amass the largest number of grade points (numerical grade multiplied by the number of hours). Students who have ...
*Sunday, December 29, 2013 by gemicia*

**language arts**

Identify the appositive phrase in the following sentence. Mrs.Talavera,an eight grade teacher at Rosewood Middle School,led the community meeting about childhood obesity. -Mrs.Talavera -an eight grade teacher at Rosewood Middle School -led the community -about childhood obesity
*Tuesday, December 17, 2013 by Anoymous*

**Math (7th grade)**

I have a math question that I do not really understand how to answer is there someone who can walk me through it? In Pinecrest middle school there are 58 6th graders 76 7th graders, and 38 8th graders. The counsel is made up of 35 students who are chosen to represent all three...
*Tuesday, December 17, 2013 by Shawna*

**physics**

An automobile moving at a constant velocity of 15 m/s passes a gasoline station. Two seconds later, another automobile leaves the station and accelerates at a constant rate of 2 m/s^2 in the same direction as the 1st automobile. How soon does the 2nd automobile overtake the ...
*Monday, December 16, 2013 by caisip*

**Mathematics**

The 25 term of an Arithmetic Progression is 7 1/2 and the sum of the first 23 terms is 98 1/2. Find the i. 1st term ii. common difference iii. sum of the first 30 terms
*Wednesday, December 11, 2013 by Jamiu*

**7th grade mat**

8g+2+4g-2-3g=? (9g)
*Thursday, December 5, 2013 by Anonymous*

**finance**

your finance text book sold 47,500 copies in the 1st year the publishing company expects the sales to grow at a rate of 23.0 percent for the next three years and by 12.0 percent in the fourth year calculate the total number of copies that the publisher expect to sell in year 3...
*Wednesday, December 4, 2013 by Anonymous*

**4th Grade Math: Help Is Needed ASAP**

My son is in the fourth grade and is needing help with these math problems. Can someone please help him with these problems. 1. 2/3+2/9= 2. 3/5+3/10= 3. 5/12+1/3= 4. Find the sum of 1/6 and 1/12 5. Add 1/4 to the answer in Exercise 4. 6. What is the sum of 1/8, 1/4, and 3/8? 7...
*Monday, November 18, 2013 by Tim*

**math**

Carlos was 5feet,8inches tall at the beginning of ninth grade. he grew 4 3/4inches during that school year and 2 1/4inches during follow the summer. how tall was Carlos at the beginning of tenth grade? Express his height in feet and inches.
*Monday, November 18, 2013 by miina*

**Statistics**

The following table shows a frequency distribution of patients with colon cancer treated at Community Hospital. Compute the proportion of patients in each category. Community Hospital Ages of Patients with Colon Cancer Annual Statistics, 20XX Age No. of Patients Proportion &#...
*Saturday, November 16, 2013 by Anonymous 11/16/13*

**physics**

a woman weighs Fg=650 when standing on a stationary scale. The woman is riding an elevator from the 1st floor to the 10th floor. As the elevator approaches the 10th floor, it decreases its upward speed from 9 m/s to 1 m/s in a time interval of 1 second. What is the average ...
*Saturday, November 2, 2013 by D*

**Physics**

WOMAN IN ELEVATOR A woman weighs Fg= 650 N when standing on a stationary scale. Now, the woman is riding an elevator from the 1st floor to the 10th floor. As the elevator approaches the 10th floor, it decreases its upward speed from 8 m/s to 1 m/s in a time interval of 1 s. ...
*Saturday, November 2, 2013 by Mary*

**Physics **

A woman weighs Fg= 600 N when standing on a stationary scale. Now, the woman is riding an elevator from the 1st floor to the 10th floor. As the elevator approaches the 10th floor, it decreases its upward speed from 7 m/s to 1 m/s in a time interval of 1 s. What is the average ...
*Saturday, November 2, 2013 by Phy*

**math 5th grade**

How to solve 547X73
*Friday, November 1, 2013 by hannah*

**math 5th grade**

How to solve 547X73
*Friday, November 1, 2013 by hannah*

**english**

Please help me. I wanna make sure if all corrects this. Thanks. Some people are so (1)ominous to living near a nuclear plant that they want the plant’s license to be (2)nullify. They say the plant infringes on every homeowner’s right to safety. Shannon is (3)endowed ...
*Wednesday, October 23, 2013 by Franny*

**Geology**

Can someone please help me with my review? 1)What grade of metamorphism common rocks are formed in- --- Is it high grade? 2)What is the name of the most rapid kind of mass wasting is> -- Weathering? 3)How to tell is a rock is igneous, metamorphic or sedimentary. 4)How to ...
*Thursday, October 17, 2013 by Matt*

**Geogoly**

Can someone please help me with my review? 1)What grade of metamorphism common rocks are formed in- --- Is it high grade? 2)What is the name of the most rapid kind of mass wasting is> -- Weathering? 3)How to tell is a rock is igneous, metamorphic or sedimentary. 4)How to ...
*Thursday, October 17, 2013 by Matt*

**Pre Algebra**

In Wilbur's math class, his grade is based on the average score of six tests, each worth 100 points. Wilbur always worries about his grade. He knows that his average on the first four tests is 88.5. What is the lowest average he could get on his next two tests and still ...
*Thursday, October 17, 2013 by Ry*

**fast answer plss**

the sum of four angles about a point is 360degree.the measure of the 2nd angle is 6degreemore than 3times the 1st,the measure of the 3rd is 3degree more than twice the first,the measure of the 4th is 20 degree less than the 3rd.what is the measure of each angle?
*Friday, October 11, 2013 by math algebra*

**math**

I need help on study links 2.9 for 5 grade
*Thursday, October 10, 2013 by tony*

**6th grade math**

6 1/2-7/8 / 5 11/16 evaluate the expresson
*Monday, October 7, 2013 by rupa*

**Math**

Julie has been offered two jobs. The 1st one pays $400 per week. The 2nd job pays $175 per week plus 15% commision of her sales. How much will she have to sell i n order for the 2nd job to pay as much as the first? how do you do this? i dont know the steps to.
*Thursday, October 3, 2013 by Jenny*

**Shurley English Grade 4**

I'm suppose to write sentences from Grade 4 Shurley English book. I was suppose to bring book home and use page 25 - I forgot the book - anyone know what is on page 25? Thanks
*Wednesday, October 2, 2013 by Brayden*

**Second Grade Reading**

Hello. I am a tutor. I tutor second grade students. I need a good website that will give me great tips on how I can better teach my students how to read, spell, and pronounce words. Can you please help me find a website like that?
*Saturday, September 28, 2013 by Qiayamah*

**grades**

your average grade if you get a b- then you get a d+ ?
*Thursday, September 26, 2013 by rockrboiluvr14*

**8th Grade Math**

25/50 x 60/70 x 100/200= 72 6/7
*Tuesday, September 24, 2013 by Nick*

**statistics**

suppose that grade point averages of undergraduate students at one university have a bell shaped distribution with a mean of 2.55 and a standard deviation of 0.43. Using the empirical rule, what percentage of students have grade point averages that are between 1.26 and 3.84
*Monday, September 23, 2013 by roy*

**math grade 10 **

Solve 3p-6q = 0 4p+1q = 3 Using any method Thank you!!!!
*Monday, September 23, 2013 by rose*

**dma 040**

42 inch board is cut into 3 pieces. Piece 2 is twice as long as the 1st & 3rd piece. Piece 3 is three times as long as piece 1. Find inches of all three pieces
*Saturday, September 14, 2013 by Anonymous*

**pre-algebra**

There are 1,400 students in a school.The number of girls is 3/4 the number of boys.How many students are in the other grade levels if 1/6 of the girls and 1/5 of the boys in first grade?
*Thursday, September 12, 2013 by Fernando*

**Money and Banking**

1. A firm uses capital to produce revenue. The marginal revenue from the first 5 units of capital is as follows: 1st unit has MR 2.30, 2nd unit has MR 1.9, 3rd unit has MR 1.70, 4th unit has MR 1.35, and 5th unit has MR 1.15. If the interest rate is 50%, what is the optimal ...
*Sunday, September 8, 2013 by Anonymous*

**health 5 grade**

i need help in health subject for my son 5 grade Question 1- connect suppose you have a cold. this affects your physical health. does if affect your mental,emotional,family, and social health, too? explain why or why not. Question 2- practice healthful behaviors Make a list of...
*Friday, September 6, 2013 by niki*

**Math**

The fifth and sixth grades at Oak Street School are having fair.There are 50 students total and 3/5 of the students are fifth grade students.How many fifth grade students are entered in science fair?
*Wednesday, September 4, 2013 by Anonymous*

**Math**

The fifth and sixth grades at Oak Street School are having fair.There are 50 students total and 3/5 of the students are fifth grade students.How many fifth grade students are entered in science fair?
*Wednesday, September 4, 2013 by Anonymous*

**math**

The 1st 3 members of a team finished their laps with a mean time of 53 seconds. What mean time do the next 2 members will gine an overall team mean of 50 seconds?
*Tuesday, August 27, 2013 by Mase*

**maths**

Calvin stays on the 7th floor in his building. Between each floor, there are exactly 12 stairs. If he starts from the 1st floor and climbs his way up to the 7th floor, how many stairs does he climb?
*Wednesday, August 21, 2013 by ashu*

**math**

Ez stop fast gas sold 10957 worth of gasoline yesterday. Redular grade sold for 2.30 a gallon and premium grade sold for 2.55 a gallon. If the station sold 420 more regular than premium, how many gallons of regular were sold
*Monday, August 12, 2013 by Anonymous*

**School**

I need to answer questions about school,(the topic I chose) but I don't get how to list the school options into my answers. It says: For this assignment, research school options available to you. List the top 10 schools from these options based upon your answers to the ...
*Tuesday, June 25, 2013 by Janess*

**grade 4 math**

exponential form of 59,187
*Thursday, June 20, 2013 by jexzey heily*

**math**

at2pma train leaves at 8pm 2nd train leaves at 162miles per hour faster than 1st train 2nd train takes over at10pm what are the speeds of the2 trains
*Monday, June 10, 2013 by pam*

**compound sentence**

1.There was no break between the breakfast and lunch crowds, so Zach's first break was around 2:00. 2.Then he made some notes for the owner, Melanie, who was also the cook on the second shift. I think the compound sentence is the 1st sentence
*Monday, June 10, 2013 by Jim Collum*

**Biostatistics**

Test the potency of a drug on 20 rats. Previous animal show that a 10-mg dose of drug is lethal 5% of the time within 1st 4 hours; of the animals alive at 4 hours, 10% will die in the next 4 hours. What is the probability that 3 or more rats will die in the first 4 hours.
*Saturday, June 8, 2013 by Cathy*

**9th grade math**

Solve -4(x-3)>2x A. x>6 B. x<2 C. x>3/2 D. x<-1/2
*Tuesday, June 4, 2013 by elia*

**Math**

Jon bought a car for 20000 and sold it for 30% profit. Then he bought another more expensive car and sold it for 30% loss. Wat was his overall profit or loss? I got 1st 26000 profit Then 18200 loss Overall? I minus them or??
*Sunday, June 2, 2013 by Katherine :))*

**5th grade math**

what is the common denominator to 3/5, 1/3, and 1/6
*Tuesday, May 28, 2013 by Kim*

**Math**

Two bike riders ride around a circular track, 1st rider completes one round in 12 minutes, the second rider completes a round in 16 minutes. If they start at the same time and fo in the same direction, how many turn before they meet at the same place again.
*Thursday, May 9, 2013 by Ruth*

**Physics**

Estimate the total binding energy for copper. 550 MeV Estimate the energy, in joules, needed to break a 3.0g copper penny into its constituent nucleons. E= in Joules Please help me out I got 1st part I need the Energy in joules am confused please help me out...thanks
*Tuesday, May 7, 2013 by Leila*

**5th grade math**

What is 508 times 7?Thanks if you help:)
*Monday, May 6, 2013 by Kim*

**Math**

I'm having a hard time coming up with the right equation to solve this one. E-Z Stop Fast Gas sold $10,957 worth of gasoline yesterday. Regular grade sold for $2.30 a gallon and premium grade sold for $2.55 a gallon. If the station sold 420 more gallons of regular than of ...
*Wednesday, May 1, 2013 by Ann*

**Math**

A math class has girls and boys in the seventh grade and girls and boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both girls? Write your ...
*Wednesday, May 1, 2013 by MADISON*

**Biology **

Is 9th grade biology hard? Is it interesting...?? I love life science but I just wondering if 9th grade biology hard??? I'm taking biology next year.
*Monday, April 29, 2013 by Sarah*

**algebra1**

he drove an average of 50 mph for 6 h for the 1st 4 hours he drove 47 mph what was his speed for the ast 2 hours
*Sunday, April 28, 2013 by jj*

**maths**

To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question,true if heads and false if tails). What is the chance ...
*Saturday, April 27, 2013 by anonymous*

**4th grade math**

4 1/4 minus 1 3/4
*Monday, April 22, 2013 by jordyn*

**Math**

Ms Perez owns 2 properties in different towns. The 1st property is assessed at $125,000 and has a tax rate of $6.35 per 1000 dollars. The 2nd property has the same assessed value, but is taxed at the rate of $0.00587 per dollar. Derive the solution to the total tax obligation ...
*Friday, April 19, 2013 by Jane*

**3rd grade math**

What does 5 fracture each 1/2 mean?
*Thursday, April 18, 2013 by James*

**Math**

Meagan bought a 3 liter soda and a bag of cups to a party. Each cup holds a volume of 250ml How many cups will be needed for soda 12 Ms.Baggett took a total of 3 hours to grade 120 papers Which of the following can be used to find m the number of minutes Ms.Baggett took to ...
*Wednesday, April 17, 2013 by Jerald*

**programming**

Write a program that requests the numeric grades on a midterm and a final exam and then uses a Function procedure to assign a semester grade (A, B, C, D, OR F). The final exam should count twice as much as the midterm exam, the semester average should be rounded up to the ...
*Tuesday, April 16, 2013 by Shirley*

**math 4th grade**

how do you add 2/3 plus 5/8
*Tuesday, April 16, 2013 by daniel*

**U.S/history AP**

1- -------.one of the ways that white southerners tried to keep blacks from voting.1st way they did this .This rule said that could only vote if your ancenstor voted in 1860.a.k.a. (MISSISSIPPI Plan). 2---------.as white southerners regained control of their governments they ...
*Monday, April 15, 2013 by joy*

**Algebra(1st one was typo)**

The function f(x)=x^3 +1/4 x −1^4 is a monotonically increasing function, hence it is injective (one-to-one), so its inverse function exists and is well defined. How many points of intersection are there, between the function f(x) and its inverse f^−1 (x) ?
*Thursday, April 11, 2013 by Jacob*

**stat probability**

An apartment building has the following apartments: 2 bdrm 3 bdrm 4 bdrm 1st floor 7 3 4 2nd floor 9 0 11 3rd floor 8 4 7 If an apartment is selected at random, what is the probability that it is a 2 bedroom apartment on the 3rd floor?
*Monday, April 8, 2013 by Lynn*

**FRENCHHHH**

conjugue les verbes a limparfait ou au passé compose guillame,quatorze ans,se rapelle son long sejour a l'hopital, quand il receivait la visite des animatuers de docteur clown,La premiere fois, j'ai cru(croire) qu'ils ______ (venir) d'une autre planete! ...
*Monday, April 8, 2013 by Mia*