Wednesday
December 7, 2016

Homework Help: 2nd Grade

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

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

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

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

MATH
Determine the equation of a line that is perpendicular to the line 2x+3y=7 and passes through the point (0,6) What is the volume if the prism in terms of y? 1st dimension: 2y+1 2nd dimension: y 3rd dimension: y+3
Monday, March 3, 2014 by Anonymous

physics Sound PLEASE HELP ASAP!!! PLEASE
The 2nd harmonic of a string of length 60 cm and linear mass density 1.1 g/m has the same frequency as the 5th resonance mode of a closed pipe of length 0.8 m. Find the tension in the string.
Sunday, March 2, 2014 by Shek

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

help
If the 3rd Monday of the month follows the 2nd Sunday of the month, then the date of the 3rd Monday is the _____th. a) 14 b) 15 C) 16 d) 17 e) 18 Please explain???
Monday, February 24, 2014 by nisrin

Essay
Would this essay be good? Anything I should add? I still need like 200 more words.. Intro; Hello, I am 12 years old and my name is Navpreet Chauhan. I have been going to Hamilton Southeastern schools for about 7 years. I love helping others out. Scholarship; I usually make it ...
Thursday, February 20, 2014 by Navpreet

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

Math.G.P
The 1st term of a G.P is equal to x-2,the 3rd term is x+6 and the arithmetic mean of the 1st and 3rd terms stands in the ratio to the 2nd 5:3.find the value of x.
Friday, February 14, 2014 by Miracle

MAT-134 Math XL
Graph the following linear equation using one of the following methods: 1st slope intercept form y = mx + b 2nd table of values 3rd x-intercept and y-intercept 1. 3x + 4y = 12
Thursday, February 13, 2014 by Billy

physics
A box is on Callisto (2nd largest moon of Jupiter). The box weighs 36 lb and is in free fall. How much force is the box exerting on Callisto and in what direction?
Tuesday, February 11, 2014 by Anonymous

Physics
A box is on Callisto (2nd largest moon of Jupiter). The box weighs 36 lb and is in free fall. How much force is the box exerting on Callisto and in what direction?
Tuesday, February 11, 2014 by Anonymous

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

math
guess my rule with two rules. Having such as hard time understanding this and would like to be able to explain to my 2nd grader! home wor sheet has 2 circles joined togeather, rule A has 2 girls in it with glasses, in the middle there is another girl with glasses, in rule B ...
Tuesday, February 4, 2014 by kate

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

2nd Order linear ODEs
I'm having trouble solving this problem: For the equation x^(2)y′′ - xy′ = 0 , find two solutions, show that they are linearly independent and find the general solution. Hint: Try y = x^(r). I divided the equation by x^(2) first to simplify it, and then I...
Thursday, January 30, 2014 by Student

maths
The 2nd term in Geometric sequence is -4 and the 5th is 32 ,find the general formula \term and the first 3 terms ,find the 18th term
Tuesday, January 21, 2014 by Awe

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

Fifth grade math
If a wom and a sail race who will it be
Saturday, January 11, 2014 by Doodle

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

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