Tuesday
July 28, 2015

Homework Help: 2nd Grade

Algebra 1
A teacher graded the tests for each of her students. She calculated a mean grade of 80 and a standard deviation of 3. One of her students, Katrina, had a z-score of 2. What grade did Katrina get on the test?
Sunday, May 10, 2015 by Jacob

physical science
A baseball diamond has 90 feet between bases. A player hits the ball and runs to 1st, 2nd and stops at 3rd base. The player's displacement is
Wednesday, April 29, 2015 by Anonymous

Chem
What is the order of rate = k[NO]2[Br2]. 2nd order?
Thursday, April 23, 2015 by Marissa

math
Of the 6796 students in one school district, 1537 cannot read up to grade level. Among a sample of 812 of the students from this school district, 211 cannot read up to grade level. Find the sample proportion of students who cannot read up to grade level. A. 0.14 B. 0.26 C. 211...
Friday, April 17, 2015 by HELP

statistics
Of the 6796 students in one school district, 1537 cannot read up to grade level. Among a sample of 812 of the students from this school district, 211 cannot read up to grade level. Find the sample proportion of students who cannot read up to grade level. A. 0.14 B. 0.26 C. 211...
Friday, April 17, 2015 by Jane

6th Grade Math Help & FAST!!!
I only have 2 questions. 1 is multiple choice and one I have to type so please help. 1. Which set of output values correctly completes the function table? This is the function table: y= 2x - 4. Input (x) 6, 2, -4. Output (y) those three slots all have question marks. A. 8, 2...
Tuesday, April 14, 2015 by MusicLover14

programming
Write a Java application that computes and prints the grade of a student according to the following algorithm: 1) It should read from the user TMA score and MTA score. 2a) If their sum is less than 15, the grade "FC" should be printed and the program will stop. 2b) ...
Saturday, April 11, 2015 by pooja

ICT (Programming)
Design program logic that receives the letter grades for 4 subjects and then based on the grades, calculate the total grade point. The program should use IF statements to determine the grade point corresponding to the letter grade (as given in the table below). Once all the ...
Saturday, April 11, 2015 by Zee

7th grade math (probability)- additional questions
Here are additional problems that weren't included in original post from 3/30. 4. There are 5 different color jolly ranchers in a bag - 10 cherry, 15 watermelon, 12 grape, 10 apple, and 8 raspberry. What is probability that you'll choose raspberry? Ans: 8/55 =.1454 = ...
Tuesday, March 31, 2015 by Alexis

7th grade math (probability)
I'm not sure how to answer this: 3. THe 7th grade wants to have a back-up representative just in case the first teacher is absent. Based on the same scenario as #2, if a math teacher was chosen to be the 7th grade representative, what is the probablility that the back-up ...
Monday, March 30, 2015 by Alexis

math
there are half as many 11th grade students in the band the are 9th grade students. how many 11th grade students are in the band
Wednesday, March 25, 2015 by vanessa

Math
How do you explaint to a 2nd grader how to find 2/3 minus 1/4?
Wednesday, March 25, 2015 by Marilyn

Math
Kami has an average of 64% in her class. School ends soon and she would like to raise her grade to a 74%.She has 2 tests left and tests counts as 80% of her grade, what would she have to get on the next to test to get her average up to a 74%?
Wednesday, March 25, 2015 by Kammi

Math
Theo made the table below to show the number of middle school students who attended the last football game. If the data were displayed in a circle graph, how many degrees would be in the sector representing the eigth graders? Grade 6 Number of students in attendance 375. Grade...
Tuesday, March 17, 2015 by Anonymous

MATH
DRIVING DOWN A 10% GRADE, THEN YOU DESCEND TO 20 FEET BELOW YOUR STARTING POINT. wHAT CONCEPT DOES THE GRADE RELATE TO?
Monday, March 16, 2015 by BONNIE

Math
Theo made the table below to show the number of middle school students who attented the last football game. if this data were displayed in a circle graph, how many degrees would be in the sector representing the 8th grade Grades 6,7,8 # of students in 6th grade: 375 7th grade...
Monday, March 16, 2015 by Ann

Mathematics
The sum of the 1st and 2nd terms of an AP is 4 and the 10th term is 19. Find the sum of the 5th and 6th terms
Friday, March 13, 2015 by Amaka

language arts
WEDNESDAY March 11, 2015 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th ...
Wednesday, March 11, 2015 by hello

MATH
You buy 3 pairs of pants at an original cost of $24.99 and the sale is buy 1 get the 2nd pair half off. The sales tax is 6%. How much do you pay in total for the pants? $39.73 $79.47 $52.98 my answer?? $66.23
Friday, March 6, 2015 by Anonymous

MATHS
in a GP,the product of the 2nd and 4th terms doubled the 5th term and sum of the first four term is 80.Find the GP.
Tuesday, March 3, 2015 by SALAUDEEN

4th grade math
explain how you know that 21/30 is greater than 2/3. Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. Also, I need a FOURTH GRADE ANSWER, nothing else, perferibly using fraction strips.
Monday, March 2, 2015 by Yellow

math
it takes about 20 minutes to grade a student's paper. How long, in hours, does it take to grade papers for a class of 25 people?
Friday, February 27, 2015 by brandon

statistics
In a course there is a midterm exam, worth 40% of the course grade, and a final exam worth 60%. On the midterm the mean grade was 80 with a standard deviation of 10, and on the final the mean was 75 with a standard deviation of 15. The correlation between the two exams is 0.6...
Wednesday, February 25, 2015 by jess

mathematics concepts
Select the answer choice that best describes children's readiness to understand how to tell time. A. Introduce the units of measurement in grade one; expect accurate measurement in second grade. B. It may be introduced in grade 2, but it will be beyond primary before ...
Tuesday, February 24, 2015 by lauren

Algebra 1
what is the equation to y= -1/12x+4 so that the 2nd line is parallel?
Monday, December 15, 2014 by Steve

Chemistry
Which electron would have the highest ionization energy for an oxygen atom? A. 2nd B. 1st C. 5th D. 6th If it is the highest I was guessing b or d.
Monday, December 15, 2014 by Morgan

Chemsitry
What courses should you take in each grade 9,10,11,12 to help you become a pharmacologist. i need courses for each grade
Thursday, December 11, 2014 by Katherine

Math
An oil company owns two refineries. The daily production limits and operating costs for each refinery are given in the table below. An order is received for 1540 barrels of high-grade oil, 1650 barrels of medium-grade oil, and 2860 barrels of low-grade oil. How many days ...
Wednesday, December 10, 2014 by LJ

Algebra 1
Describe how the graphs of y =IXI nand ym = IXI -15 are related. 1- the graphs have the same shape,. The y intercept of the 2nd graph is -15 2-the graphs have the same y intercept. The 2nd graph is steeper than y= absolute x 3- the 2 graphs are the same 4- the graphs have the ...
Sunday, December 7, 2014 by Steve

7th grade math
Can you check these? 1. Olivia typed 2 pages in 15 minutes. Write an equation relating the number of minutes m to the number of pages typed. How long will it take her to type 10 pages at this rate? Ans: 15/2 = 7.5 = 7.5 * 10 = 75 minutes 2. If the ratio of Type O to non-Type O...
Saturday, December 6, 2014 by Alexis

Thermodynamics
Drawing a blank studying last minute for an exam: when does a piston cylinder not follow the 2nd law of thermodynamics!!!!
Tuesday, November 25, 2014 by Joe

geometric progression
the 3rd term of a gpis 10 and the 6th term is 80 find the common ratio No2 if the 2nd term of a gp is 4 and the 5th term is 1over 16,the7th term is_
Tuesday, November 18, 2014 by jessica

physics
Find the force (in newton) required to lift a mass of 26 kg load with a wheelbarrow (2nd class lever) with the load at 0.75 m from the fulcrum and being lifted at 1.7 m from the fulcrum, assuming ideal conditions.
Monday, November 17, 2014 by kody

I need checking
Whats the 2nd derivative of 4xsecx I got 4secxtanx+8xsecxtan^2x
Tuesday, November 11, 2014 by Edward

Math
Whats the 2nd derivative of 4xsecx I got 4secxtanx+8xsecxtan^2x
Tuesday, November 11, 2014 by Edward

Derivatives check
find the 2nd derivative of y= 1/x +cosxsinx I got 2/x^3 - 2cosxsinx is this right or did I get this wrong
Tuesday, November 11, 2014 by Edward

Math
Horse race has 14 entrees with no ties what's probability of 4 horses owned by one owner to come in 1st, 2nd, 3rd, 4th.
Monday, November 10, 2014 by Luigi

mathematics
find the number in an A.P such that the sum of 1st and 3rd term is 12 and the product of 1st and 2nd is 24
Saturday, November 8, 2014 by mikkymiczy

java programming
Create a java program that will calculate the current grade in a classroom. The program should ask for 5 grades as well as total point value per grade available.
Monday, November 3, 2014 by JORDAN

Grades
If I have an 80 in my class, and I get a 70 on my test which is 33.33% of my grade, what will my overall grade become
Monday, October 27, 2014 by Anonymous

geometry
Find the dimensions of a rectangle if the area is 1500 ft to the 2nd power
Monday, October 20, 2014 by Anonymous

Math- AP Calc
If 3x+xy+4y=8, what is the value of d^2y/dx^2 at the point (1,1)? My work: 3+(x)(dy/dx)+(y)+4(dy/dx)=0 dy/dx(x+4)=-3-y dy/dx=-3-y/x+4 2nd Dervative: (x+4)(0-dy/dx)-(-3-y)/(x+4)^2 (x+4)(-(-y-3/x+4))-(-3-y)/(x+4)^2 (x+4)(y+3)/(-x+4)+(y+3)/(x+4)^2 *Mult. everything by (-x+4) ...
Monday, October 6, 2014 by David

Math
If 3x+xy+4y=8, what is the value of d^2y/dx^2 at the point (1,1)? My work: 3+(x)(dy/dx)+(y)+4(dy/dx)=0 dy/dx(x+4)=-3-y dy/dx=-3-y/x+4 2nd Dervative: (x+4)(0-dy/dx)-(-3-y)/(x+4)^2 (x+4)(-(-y-3/x+4))-(-3-y)/(x+4)^2 (x+4)(y+3)/(-x+4)+(y+3)/(x+4)^2 *Mult. everything by (-x+4) ...
Monday, October 6, 2014 by David

Math
A sixth grader weighs 90 pounds which is 120% of what he weighed in 4 th grade. How much did he weigh in 4th grade? 90x100=9000/120= 75 So he weighed 75lbs is this correct?
Sunday, October 5, 2014 by Megan

statistics
how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last ...
Saturday, October 4, 2014 by nina

algebra 1
princess leia is a very good math student. Her average math grade was a 95 on her 15 tests. If Darth Mangham decides to drop her lowest grade, write an expression to determine her new test average.
Friday, October 3, 2014 by paula

CHEM
H2C=C-C-C-CH3 THERE IS AN H ATTACHED TO THE CARBON AFTER THE FIRST BONG THEN A H2 ON THE 2ND AND 3RD CARBON
Saturday, September 27, 2014 by M

math
A 500-litre water storage tank is situated at the top of a building at a height of 300 feet.The tank,which is completely full,has two outlet pipes and one inlet pipe.Veeru climbs up to the tank and opens an outlet which can empty a full tank in 10 minutes. At the same time jay...
Friday, September 26, 2014 by Nitumoni

programming
create a program using java that calculates the current grade in a classroom. the program should ask for 5 grades as well as the total point value per grade available.
Friday, September 12, 2014 by JORDAN

JAVA PROGRAMMING
Create a java program that will calculate the current grade in a classroom. The program should ask for 5 grades as well as total point value per grade available.
Friday, September 12, 2014 by JORDAN

Algebra I
to determine whether a given number is a solution of an equation. Problem: Is 5 a solution of 10x-xto the 2nd power = 3x-10? my work: 10(5)-25=25 and 50-25=25 so x is not a solution. right or wrong? Im new at this
Tuesday, September 9, 2014 by Nancy

Bio Chem
Carbonate is commonly used to buffer household detergent solutions to a pH of 9.0. How many grams on NaHCO3 and how many grans of NA2CO3 are needed to prepare 0.75L of a 100mM solution? The 2nd pKa of carbonic acid is 10.33.
Thursday, September 4, 2014 by Cassandra

statistics
You want to estimate the difference in grade point averages between two groups of university students to be accurate within 0.2 grade point, with probability approximately equal to 0.95. If the standard deviation of the grade point measurements is approximately equal to 0.6, ...
Wednesday, August 13, 2014 by Bob

statistics
The trends in international mathematic and science study (TIMSS) in 2007 examined eighth grade proficiency in math and science. The mean mathematics scale score for the sample of eighth grade students in the US was 508.5 with a standard error of 2.83. Construct a 95% ...
Saturday, August 2, 2014 by Marc

math
how to write 2nd august 2014 in 5letters without numbers
Friday, August 1, 2014 by small logic

MATH
if f(x)=x[x] / sin[x] then show that there is no existence of lim f(x) x>0 2nd prob: show lim (tanx-sinx)/x^3 =1/2 x>0
Friday, July 11, 2014 by ALOKE

What does your overall grade have to be to pass?
I'm in the eighth grade and mine is 64 percent am I passing?
Thursday, June 5, 2014 by nonononono

Algebra
Alma can grade a batch of placement exams in 3hr and Kevin can grade a batch in 4hr. if they work together to grade a batch of exams, what percentage of the exams will have been graded by Alma?
Saturday, May 24, 2014 by Kgk

ALGEBRA
2nd posting - my mistake When will the dependent variable in the equation y= sqrt [x+4-3] equal or exceed 4 • x ≥ –0.17 • x ≥ 45 ** is it this one? • x ≥ 48 • x ≥ 53
Saturday, May 10, 2014 by Sandra

Math
2(x-14)+3=7x+5 1xt open bracket=2x-28+3=7x+5 2nd 2x-25=7x+5 3rd 2x-7x=30 -5x=30 x=30/-5 x=-6
Friday, May 2, 2014 by mtu reggae

math question
If jack has a 63% as his grade.If he takes a test worth 9% and got 10/10 what would his grade be then?
Monday, April 28, 2014 by matt

social studies
what is the 2nd most spoken language?
Thursday, April 24, 2014 by fardin

Math
How many roots does x to the 3rd power -2x to the 2nd power-13x-10=0 have
Monday, April 21, 2014 by Matthew

Patterns and rules unit test 7th grade
I go to connection acdeamy and I am in the 7th grade regular math Mrs. Janus I just need some help with this test Find the next three terms of the sequence -2,-12,-72,-432... A. -1,728,-6,912,-27,648
Monday, March 31, 2014 by Kayla Moore

Fractions
Last night 16/28 of the tenth grade girls and 19/30 of the tenth grade boys went to go ice skating. Did a greater fraction of tenth grade girls or boys went ice skating? Prove it.
Wednesday, March 26, 2014 by Dave

Computer
Home work:- Write a program to read 5 records consists of first name, last name, id and grade. Assign the grade according to the following specifications: 0<g<= 50 F 50<g<=60 D 60< g<= 70 C 70<g<=90 B 90<g <=100 A Use Stringtokenizer and buffering...
Thursday, March 20, 2014 by Bano

algebra
How would you solve polynomial equation for, a to the 8th power minus a to the 2nd power and b to the 6th power?
Monday, March 17, 2014 by Amy

math
please solve 100 divided by 5 to the 2nd power times 4 to the 3rd power.
Sunday, March 16, 2014 by Rose

CHEM
which formula do i use to solve for the rate constant of a 2nd order half life?
Wednesday, March 12, 2014 by Anonymous

physics Sound
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 Help please as soon as possible please!!!!

MATH
SIMPLIFY. 4 TO THE 4TH POWER TIMES 4 TO THE 2ND POWER.
Friday, February 28, 2014 by amber

probability
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.
Thursday, February 27, 2014 by jon

2nd Math
My daughter is learning about comparison problems. I would like to know how to write one and solve it.
Thursday, February 20, 2014 by Duane

math
lenzy has a 77 a c. as a grade. if she fails a test worth 26% 0/22 what will her grade be
Tuesday, February 18, 2014 by zack

Statistics in Psychology
What research steps must you go through to use the relationship between a person’s intelligence and grade average in high school so that, if you know a person’s IQ, you can more accurately predict the person’s grade average?
Monday, February 10, 2014 by Annie

STATISTICS
What research steps must you go through to use the relationship between a person’s intelligence and grade average in high school so that, if you know a person’s IQ, you can more accurately predict the person’s grade average?
Monday, February 10, 2014 by Anonymous1

math
in an AP the 10th term is 54 and 5th term is 4 times the 2nd term . Find the 1st term 'a' and common difference 'd'
Monday, February 3, 2014 by jomon

Math
I got a couple questions. 1. The quotient of c and 8 2. 16 more the the product of 5 and p 3. 9 less than the sum of x and 5 4. 5x(7+3) 5. 2x(4 to the 2nd power -5) 6. 7(8)-4(8)
Tuesday, January 28, 2014 by Not Available

maths
The 2nd term in a geometric sequence is -4 and the 5th term is 32
Tuesday, January 21, 2014 by Awe

calculus
what is the 2nd derivative of: 1-xy = x-y i get (-y-1)/(x-1) for the first the second i know is (-y-1)/(x-1)^2 but i keep getting (0)/(x-1)^2 please show me the steps i should be taking and if possible what i did wrong
Monday, January 20, 2014 by eric

Math - Algebra
Von's arcade uses 3 different colored tokens for its game machines. For 500, you can purchase any of the following combinations of tokens: 8 gold, 18 silver, and 7 bronze tokens; 8 gold, 14 silver, and 13 bronze tokens; or 16 gold, 6 silver, and 9 bronze tokens. What is ...
Saturday, January 4, 2014 by Ashley Kate

Algebra 2
A grocer mixes x kg of Grade A and Y kg of Grade B nuts to get 60 kg of mixed nuts. Write and equation involving x and y to represent this information. The grocer sells all the mixed nuts at 9.00 per kg. He receives the same amount of money as when he sells the Grade A nuts ...
Thursday, December 5, 2013 by Anonymous

Math
Janice and Patricia each want to buy a new DVD player. They go to the Hot Electronics and find a DVD player for $75. Hot Electronics offers a different payment plan. Janice is going to pay $15 now, and then $7.50 per month. Patricia is going to pay $12.50 per month How much ...
Monday, November 11, 2013 by Jerald

Math
If I I'm trying to find the average weight of a 2nd grade girl which would be the most effective and why? Mean, Median or Mode? If I'm trying to find the average cost of a home in a city which would be the most effective and why? Mean, Median or Mode? If I'm trying...
Tuesday, November 5, 2013 by Anonymous

Math
If my mid-term is worth 15%, and my grade is 100% right now. If I get 0 on the exam, my grade would be 85% right?
Wednesday, October 23, 2013 by Thom

Geometry
Simplify (6t to the fifth power) with whole expression in parenthesis to the 2nd pwr.
Thursday, October 10, 2013 by Gelo G

Physics/electricity
In the Bohr model of the hydrogen atom, an electron in the 2nd excited state moves at a speed of 5.48X10^5 m/s in a circular path having a radius of 2.12X10^-10 m. What is the effective current associated with this orbiting electron?
Sunday, October 6, 2013 by Derrick

College Math 45
Mrs. Brown has 17 children in her first-grade class, and Mr. Lopez has 20 children in his second-grade class. The principal has been asked to select 1 student from one of the classes to appear at a PTA meeting. How many ways can the selection be made?
Sunday, October 6, 2013 by Anonymous

Math
A 154-pound woman walks at 3.0 mph 0% grade for 5 min, runs at 5.5 mph 5% grade for 32 min. What is her total caloric expenditure?
Sunday, October 6, 2013 by NM

logical reasoning
how to write 2nd oct 2013 in 6 letters without using numbers
Thursday, October 3, 2013 by kani

Maths
The 14th term of an Ap is double the 4th term.find the 10th term if the 2nd term is 8
Wednesday, October 2, 2013 by Hacker

programming
Grades are assigned on the standard 90, 80, 70, 60 scale. You are to write an algorithm which will receive a student name and a percentage grade and display the letter grade to be awarded
Thursday, September 26, 2013 by Anonymous

Grammar Advisor
Are these correct? I mark my answer with an X. 88. The reason to list all of the preliminary (non-procedural) information in a lesson plan is to be sure have considered each aspect. keep good records for your future needs. be able to communicate clearly with administrators, ...
Wednesday, September 25, 2013 by William

english
Can someone check my english essay. 700 words. I have English as 2nd language
Friday, September 20, 2013 by Jon

7th Grade
I just wanna know anyone who's been in 7th grade what do you learn in science mostly throughout the year??
Monday, September 16, 2013 by Anonymous

math 5th grade
Hunter school has a kindergarten and grades 1 through 6. there are 2 kindergarten and 2 classes in each grade. If the maximum class size is 25, what is the greatest number of students that could be in the school?
Thursday, September 12, 2013 by lewis

Math - Ratios
In Mrs. Sotomayor's class, the final grade is based on 6 quizzes and 2 exams. If each exam counts for 3 times as much as each of the quizzes, what fraction of the final grade is determined by each exam?
Tuesday, September 10, 2013 by Venus

Intermediate Algebra
for the polynomial function h(x)=2x to the 4th power-x to the 3rd power+2x to the 2nd power -4x-3 evaluate h(3)
Saturday, September 7, 2013 by Kimberly

Intermediate Algebra
name the type of polynomial and give its degree for 7x to the 3rd power + 6x to the 2nd power -2=
Saturday, September 7, 2013 by Kimberly

Algebra
The ages of three brothers are three consecutive even integers. If the sum of the 1st, four times the 2nd, and twice the 3rd is 86, what is the age of the oldest brother?
Saturday, August 24, 2013 by Yasmen

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