Sunday

July 24, 2016
**math**

lilly made a 75 on her history test and an3 on her math test. the mean grade on the history test was 72 with a standard deviation of 5. the average grade on the math test was 81 with a standard deviation of 4. which test did lilly do better?
*Thursday, May 21, 2015 by debbie*

**math**

5 kids median age is 9. Two of the kids ages are 5. The range of all the kids is 7. What is the age of the 2nd to the oldest. Please help....! a. 5 b. 7 c. 9 d. 12 to figure it out, i tried this 1. 12 2. 11 3. 9 4. 5 5. 5
*Friday, May 15, 2015 by tanisha*

**math**

We throw 250 darts (one by one) at 1200 dart boards. Each dart strikes a board randomly. No dart's strike affects any other. What is the probability that two darts will strike the same board? I make it 1 in 1200, b/c the probability of the 1st dart striking a board is 1. ...
*Monday, May 11, 2015 by Jane*

**math**

I have a question on my math that my teacher cant help me with because this one is for try it. Can you help me see if it is right?: It says: 12 . Wich is equal to 30 hundreths? A)3 thousandths B)3tenths C)3 tens D)3thousands I think the answer is B but, it really confuses me ...
*Thursday, May 7, 2015 by nicole*

**Physics**

I shot two arrows into the air the first arrow had a speed of 10 m/sec , 1 second later I shot the 2nd arrow into the air with a speed of 15 m/sec. Will they meet? If so, where?
*Sunday, April 26, 2015 by Christian*

**Engineering Physics 1**

I shot the first arrow Into the air with a speed of 10 m/sec , 1 second later I shot the 2nd arrow into the air with a speed of 15 m/sec. Will they meet? If so, where? how do i solve this?
*Sunday, April 26, 2015 by Joshua*

**English**

WORDS: Averse Detract Disdain Divulge Elation Endow Expulsion Mortified Nullified Ominous ------------- Some people are so (1)averse 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 ...
*Friday, April 24, 2015 by Sora*

**math**

Sarah was trying to figure out her grades for her math course. She only knew the grade of 4 tests she had taken, however the class had taken 5 tests total. She scored a 94, 67, 83 and 93. If Sarah ended up with a grade of 90, what did she get on the 5th and final test?
*Saturday, April 18, 2015 by Jay*

**Algebra (check my work?)**

1. Write a proportion using an unknown value x and the ratio 5:6 then solve it. 5/6 = x/12 6 * 2 = 12 5 * 2 = 10 x = 10 2. In an orchestra, the ratio of trombones to violas is 1 to 3. There are 9 violas, Write a proportion that gives the number t of trombones in the orchestra...
*Friday, April 17, 2015 by Ivy *

**connexus**

anybody go to flvs academy and is 8th grade
*Thursday, April 16, 2015 by Oscar*

**algebra**

what is the first step when solving x/15=3/5? write a proportion using an unknown value x and the ratio 5:6 then solve it. in an orchestra, the ratio of trombones to violas is 1 to 3. a. there are 9 violas. write a proportion that gives the number t of trombones in the ...
*Wednesday, April 15, 2015 by phan*

**Algebra 8th grade **

(y2-3y)
*Monday, April 13, 2015 by Sw*

**Math**

Jeremy uses the linear function G=12h+50 to represent the grade, G (in points out of 100), that he can earn on an exam as a function of h, the number of hours he spends studying for the exam. 1.) Identify the slope and y-intercept of Jeremy's function and explain what they...
*Thursday, April 9, 2015 by Hailey*

**finance**

You have a discount bond with a time to maturity of one year. The market price of this instrument is 97%. You want the model price to match it while you build you yield curve with ED futures; the contracts price as follows: 1st = 99, 2nd = 98, 4th =97. What is the price of the...
*Saturday, April 4, 2015 by sasi*

**self**

I have 10 letters. My 1st and 2nd letter means not. My 1st to 5th letter means below. My 6th to 10th letter is to stand. In all, I am when you know. What am I?
*Thursday, April 2, 2015 by john*

**Math **

Sarah was trying to figure out her grades for her math course. She only knew the grade of 4 of the tests she had taken, however the class had taken 5 tests total. She scored a 94, 67, 83, and 93. If Sarah ended up with a grade of 90, what did she get on the 5th and final test...
*Thursday, March 26, 2015 by Bella*

**Maths lit**

Fraction for grade 10 assessment
*Wednesday, March 25, 2015 by Nokulunga*

**3rd grade math**

what is the standard form of 213
*Wednesday, March 18, 2015 by Anonymous*

**Math 6th grade**

Explain what a neutral field is.
*Wednesday, March 4, 2015 by Zero*

**Probability **

Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p, where 0<p<1. Given that there were 4 Heads in the first 7 tosses, find the probability that the 2nd Heads occurred at the 4th toss. Give a numerical answer.
*Tuesday, March 3, 2015 by Jonathan*

**math(5th grade)**

In the choir, 1/2 of the members are boys and 1/2 are girls. If 1/4 of the boys are5th graders what fraction of the whole choir is 5th grade boys?
*Thursday, February 26, 2015 by ary*

**algebra-6th grade**

what is a coefficient?
*Wednesday, February 25, 2015 by emporerpenguin*

**social studies**

I need help check my answers. the * stands for my answer on 1 and 2 I have to answers cause im not sure if the answer is wrong I will put the 2nd answer later. 1. which of the following best describes daily life in the south during the civil war? about the same as before the ...
*Monday, February 23, 2015 by watguy!!!*

**Social Studies/6th Grade Geography.**

"Why do most people live in the Western part of Columbia?" A - to enjoy the cooler climate of the mountains, B - to be closer with the boarder of Venezeula, C - to live along the Pacific coast, D - to benefit from the country's lush rainforests. I was trying to ...
*Friday, February 20, 2015 by Mikayla.*

**math**

the 1st branch produced 1 orange. the 2nd branch produced 2 oranges, the 3rd branch produced 4 oranges, the 4th branch produced 8 oranges and the 5th branch produced 16 oranges. how many oranges will the 10th branch produce?
*Tuesday, February 10, 2015 by beki dlamini*

**Vector Cross & Dot Product**

Given vector a=(2,1,0)and vector b=(-1,0,3) and vector c=(4,-1,1), calculate the following triple scalar and triple vector products. 1. c x a dot b What I did: c x a = ((-1)(0)-(1)(1), (1)(2)-(4)(0), (-1)(2)-(4)(1) =(-1, 2, -6) (cxa) dot b =(-1,2,-6) dot (-1,0,3) =(-1)(-1)+(2...
*Monday, February 9, 2015 by Annon*

**math**

A student’s final grade in chemistry is determined by the following weights: Quizzes 5% Exam 1 20% Exam 2 20% Lab Reports 15% Research Paper 15% Final Exam 25% The student received the following grades: Lab reports: 75 80 70 75 85 69 90 75 Quizzes: 85 60 70 0 75 80 80 80 ...
*Friday, February 6, 2015 by Jayden*

**math**

IF 121a^2b^2 + kab + 4b^2 is a perfect square trinomial, then the positive value of k must be ________. my work: 121a^2b^2 = 11ab 4b^2 = 2b Then 2nd term k is twice the product of 11ab & 2b , so the value of k must be: 44 am i right or wrong?
*Friday, January 30, 2015 by GD*

**statistics**

suppose a sample of 2404 tenth graders is drawn.Of the sampled, 601 read at or below the eighth grade level. using the data, construct the 98% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level.
*Friday, January 23, 2015 by kyle*

**math**

suppose a sample of 2404 tenth graders is drawn.Of the sampled, 601 read at or below the eighth grade level. using the data, construct the 98% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level.
*Friday, January 23, 2015 by kyle*

**Math**

Sarah was trying to figure out her grades for her math course. she only knew the grade of 4 of the tests she had taken, However the class had taken 5 tests total. She scored a 94, 67, 83, and 93. If Sarah ended up with a grade of 90, what did she get on the 5th and final test...
*Wednesday, January 21, 2015 by JWL*

**grade 6 math**

13 more than product of m and 5
*Wednesday, January 21, 2015 by patty*

**Math 7th grade**

1/15 =3/5m For my answer, I put m= 1/5 Is that correct?
*Wednesday, January 14, 2015 by Tam*

**Math**

there is two questions that I need help with: The variable x represents a real number between 10 and 20 inclusive.The variable Y represents a real number between .2 and 5,inclusive.What is the greatest possible integer value of the quotient x/y? 2nd question: A square with an ...
*Wednesday, January 7, 2015 by sashaa*

**Civics**

Lloyd enjoys deer hunting. He goes into local store to purchase a new gun. Which amendment to the Constitution ensures Lloyd's ability to purchase a new gun? 5th amendment 1st amendment 9th amendment 2nd amendment
*Tuesday, January 6, 2015 by jeje*

**Civics**

Lloyd enjoys deer hunting. He goes into local store to purchase a new gun. Which amendment to the Constitution ensures Lloyd's ability to purchase a new gun? 5th amendment 1st amendment 9th amendment 2nd amendment
*Tuesday, January 6, 2015 by jeje*

**Grade**

If there are 70 questions and you get an 80 how many did you miss
*Thursday, December 18, 2014 by M*

**math**

If Susan takes two tests and makes a makes a 54/100 on the first test and a 63/100 on the second test, and is given a third test and makes an 80/100(which can only count as 20% of her total grade for all three test, what is her final grade/score.
*Thursday, December 18, 2014 by destiny scott*

**7th grade math**

Can you check these problems? 1. 4x^2 + 3x - 4x +5 = 4x^2 - x + 5 2. m - n + m - n - n = 2m - 3n 3. (7x + 5 - 3y) - (-3x - 5 +4y) = 7x + 3x -3y + 4y + 0 = 10x - y = 0 4. m/8 - 9 = 5 m/8 = 5 + 9 m = 14/8 m = 7/4 = 1 3/4
*Wednesday, December 17, 2014 by Alexis*

**division **

9/72=8 56/7=8 49/6=8 36/9=4 64/8=8 6/24=4 5/25=5 3/15=5 Easy I'm in fifth grade and I know this 😜
*Monday, December 15, 2014 by Jamie Fuler*

**sixth grade math**

what are the prime factorization of 88? I need help!
*Sunday, December 14, 2014 by jamar*

**5th grade math **

how do i simplify
*Thursday, December 4, 2014 by caitlyn*

**mathematics**

In an ap d sum of d 1st ten terms is 50 nd d fifth term is 3times the 2nd term.find the first nd d sum of d 1st 20 terms
*Monday, December 1, 2014 by brown*

**math**

the 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one-twenty fourth the 5th term.find the 4th term.(my solution so far).ar^2=9a r=sqr of 9 r=3.help me find the 1st term
*Friday, November 28, 2014 by james*

**MLA style**

If i have to write a 1500 word research paper on MLA style. Can the format be like this : 100 word Introduction 400 word 1st paragraph 400 word 2nd paragraph 400 word 3rd paragraph and finally 100 word Conclusion. Is this good enough. and I am gonna use 9 citations.
*Wednesday, November 26, 2014 by HAQUE*

**physics**

A hiker begins a trip by first walking 25.0 km southeast from her base camp. On the 2nd day, she walks 40.0 km in a direction 600 north of east, at which point she discovers a forest rangers tower. Find the magnitude and direction of displacement from base camp.
*Thursday, November 6, 2014 by rah*

**algebra**

|x| + 5 = 18 5 or -5 13 or -13*** |y + 4| < 1 -5 < y < -3 -3 < y < 5***? -4 < y < 1***? 1 < y < 4 |2t| - 5 = 7 t = 1 or -1 t = 6 or -6*** t = 10 or -10 t = 12 or -12 |a| -3/4 = -5/8 1/8 or -1/8 7/8 or -7/8 1 3/8 or -1 3/8 no solution Please help!? ...
*Monday, October 27, 2014 by SkatingDJ*

**Math**

What is 2 more than 5?and 1 less than 8 plus 2? I am in grade one. Thank you.
*Tuesday, October 21, 2014 by Soin*

**Math**

If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12? 1st Die P(even) = 3/6 = 0.50 P(6|even) = 1/3 = 0.333 2nd Die P(6) = 1/6 = .1667 So P(12) = 0.33*0.1667 ?
*Monday, October 20, 2014 by Eric*

**Math**

If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12? 1st Die P(even) = 3/6 = 0.50 P(6|even) = 1/3 = 0.333 2nd Die P(6) = 1/6 = .1667 So P(12) = 0.33*0.1667 ?
*Sunday, October 19, 2014 by Ashley*

**Probability**

If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12? 1st Die P(even) = 3/6 = 0.50 P(6|even) = 1/3 = 0.333 2nd Die P(6) = 1/6 = .1667 So P(12) = 0.5*0.33*0.1667 ?
*Sunday, October 19, 2014 by Ashley*

**3 grade math**

How can I find the area of an angle?" How do you respond?
*Tuesday, October 14, 2014 by Ellie*

**idk **

what grade level is physics??
*Thursday, October 9, 2014 by Aluminum<3 Helping & C.S.I ♪♫*

**5th grade math**

What percent more than 2 is 16/5? Help me please
*Friday, October 3, 2014 by Righteous *

**chemistry 101**

What alcohol(s) could be used to produce each of the following compounds? Enter the IUPAC names of the alcohol(s). If there are more than one alcohol, enter them separated with commas. 1.CH3-CH2-O-CH2-CH3 2.CH3-CH2-C=CH-CH3 ..........| ..........CH3. 3.pentagon with a double ...
*Friday, October 3, 2014 by keila*

**7th grade math**

find the sum 7/20 + (-4.8) + (-4/5) +4.9 im cluless
*Tuesday, September 30, 2014 by reece*

**geometric sequence**

The sum of the 2nd and 5th terms of a geometric sequence is 3.5. The sum of the 3rd and 6th is -7. Determine the ratio r of the sequence and the first term a.
*Saturday, September 27, 2014 by h*

**sixth grade math**

3 3/5 * 5/6 = 90/45 Do I have correct answer?
*Wednesday, September 24, 2014 by Kris*

**physics**

a bus travels 280 km south along a straight path with an avg velocity of 88 km/h to the south. then it travels 210 km south with an avg velocity of 75 km/h to the south. a) how long does the 1st trip last? b) how long does the 2nd trip last? c) what is the avg velocity for the...
*Sunday, September 21, 2014 by nicole*

**English**

1. Class 2 in the second year won first place. 2. Class 2 in the second grade won first place. 3. Class 2-2 in the second year won first place. 4. Class 2-2 in the second grade won first place. (Are they all grammatical and teh same in meaning?)
*Thursday, September 18, 2014 by rfvv*

**4th grade math**

GCM OF 12 and 20. Please explain
*Wednesday, September 17, 2014 by Jay*

**Grade 9 Math**

how would you expand: -(w - 30)^2 + 80w + 600
*Friday, September 12, 2014 by Tenneal*

**Math (2nd time posting this)!**

the best order-of-magnitude estimate for 0.00006? - 10^-3 - 10^-4 - 10^-5 * my answer - 10^-6 the best order-of-magnitude estimate for 789,000? - 10^7 - 10^6 - 10^5 - 10^4 *my answer I don't understand this quite well but I want to make sure my answers are correct. Thanks!
*Thursday, September 11, 2014 by Anonymous*

**Math**

If a compact body falls vertically 16 ft. during the 1st second, 48 ft. during the 2nd second, and 80 ft. during the third second, how far will it fall during the 7th second? During the first 7 seconds?
*Tuesday, September 9, 2014 by Ryzza*

**7th grade math**

132 1/6 - 99 5/6 evaluate the expression
*Tuesday, September 9, 2014 by reece*

**Math, Calculus**

The questions says it has 2 solutions. It wants me to find what x would be if cos(x)=-.49 and it is given that x is on the scale between 0 and 2pi. I know that cosine is the x value, and since cosime is negative in this case the two solutions need to be in the 2nd and 3rd ...
*Tuesday, September 2, 2014 by Ali*

**5th grade math**

What is the value of n 9*27+2*31-28=n
*Monday, August 25, 2014 by Mythreyee*

**Algebra**

This question never got answered and I would appreciate it if someone could take a look at it. Simplify 12(6^/(5^-4^) + 7 My thoughts 12(36/(5^-4^) + 7 12(36/9) + 7 12 (4) + 7 12 * 11 132 Algebra - Steve, Saturday, August 23, 2014 at 11:49pm Your notation is weird. 5^-4 = 1/5^...
*Sunday, August 24, 2014 by Faye*

**math**

what is the base 10 of 469 3rd grade
*Thursday, August 21, 2014 by heidi*

**Algebra 2**

A species of bees make hexagonal, 6 sided, honeycombs.The bees begin with on hexagonal cell then make successive rings of hexagonal cells around the initial cell. Make a table of values for the number of cells in each of the first 8 rings (1st ring, 2nd ring, etc..) after the ...
*Thursday, August 7, 2014 by Nan*

**Interpersonal Communication **

How does confidence,hard work, unorganization and shyness relate to Interpersonal Communication? I need some example from chapter 1 and 2 from Reflect and Relate 2nd Edition by Steven McCornack. Need help before the end of the day.
*Wednesday, August 6, 2014 by Branden*

**Chemistry**

Iodine combines to form I2 in liquid propane solvent with a constant of 1,5 x 10^10 L/mol. The rate is 2nd order. Since the reaction occurs quickly, a flash of light creates an I concentration of .0100M. How long will it take for 95% of the atoms to form I2? This must use a ...
*Monday, August 4, 2014 by Nancy *

**grade 7 maths**

Missing input W+9=14
*Monday, August 4, 2014 by Aphiwe*

**chemistry**

Iodine combines to form I2 in liquid propane solvent with a constant of 1,5 x 10^10 L/mol. The rate is 2nd order. Since the reaction occurs quickly, a flash of light creates an I concentration of .0100M. How long will it take for 95% of the atoms to form I2? This must use a ...
*Monday, August 4, 2014 by Nancy*

**Essay Topic (Synthesis)**

Is the topic of Immigration Reform in the United States to controversial for my synthesis essay? I am writing a synthesis essay for my class, and it is a big portion of my grade. I have a lot of information about Immigration, but I'm afraid the topic will be too ...
*Sunday, August 3, 2014 by Tyler*

**math**

Timmy and Kenny raced in biking and running. Timmy won first place by clocking in at 5.75 min. in biking and 8.2 min. in running. Kenny won 2nd place by clocking in at 6.2 min. in biking and 9.4 min. in running. What is the difference of their clock-ins together?
*Friday, August 1, 2014 by asdasd*

**programming oop **

I need a help regarding this. Compute and display the sum o 1st and 2nd number, Difference of sum and 3rd number, product of difference and 4th number, Quotient of product and 5th number using Eclipse Helios. My subject is OOP
*Saturday, June 21, 2014 by Anonymous*

**programming**

I need a help regarding this. Compute and display the sum o 1st and 2nd number, Difference of sum and 3rd number, product of difference and 4th number, Quotient of product and 5th number using Eclipse Helios. My subject is OOP
*Saturday, June 21, 2014 by Anonymous*

**physics**

as Sue runs, her knee joint passes through the following vertical positions (meters): Frame 1: .043 Frame 2: .145 Frame 3: .21 Frame 4: .39 Frame 5: .415 The data were collected at a frequency of 100 Hz. What was the vertical velocity of her knee joint at the 2nd time point?
*Sunday, June 15, 2014 by chris*

**us hist**

All of the following are reasons for Communist Russia's animosity toward the United States and the western powers except one. Which is the exception? a. Russia was not allowed to participate at the Treaty of Versailles. b. Russia felt the U.S. delayed the 2nd front in WWII...
*Tuesday, June 10, 2014 by joe*

**4th grade math**

For a survey, 20 students in one class were asked to name their favorite sport. the tally chart shows the result. Basket ball - 6 soccer-7 hockey - 5 volleyball - 2 suppose all 100 students in the grade were asked to name their favorite sport. how many students would you ...
*Thursday, June 5, 2014 by mythreyee*

**I may fail the 8th grade?**

My home life has been crazy so I missed a lot of school and got bad grades. My anxiety is through the roof right now and i'm shaking a lot. all i need to do is get a 75% in math. and i just can't this is my biggest fear I can't see how life goes on after failing a ...
*Thursday, June 5, 2014 by nonononono*

**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*

**history 11th grade**

Amazon rain forest
*Sunday, May 11, 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*

**Algebra**

Bob drove 120 miles on his vacation. He drove an average of 1.2 times faster on the 2nd 60 miles of his trip than he did on the first half of the trip. Which expression represents the time he spend driving? Let x=his speed on the first half of the trip. • 110/x • 120...
*Saturday, May 3, 2014 by Sandra*

**4 the grade math**

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

**history grade 3**

Why did the immigrants have to go to Ellis Island
*Sunday, April 27, 2014 by kathy*

**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**

Which expression is a polynomial???? A: 11 0ver the square root of x B: square root of 11 times x C: x - square root 11 D: 11 over the square root of x to the 2nd power (sorry I am not sure how to insert square root symbols or fractions, so u have to imaging its there) thank ...
*Sunday, April 6, 2014 by Amber*

**math - 6th grade**

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