Wednesday

February 10, 2016
**algebra**

7s over 5t to the negative 3rd power 2 to the negative 3rd power times X to the 2nd power times Z to the negative 7th power 7s to the zero power times T to the negative 5th power over 2 to the negative 1st power times M to the 2nd power If you would please simplify these ...
*Monday, April 21, 2008 by blockhead*

**English Expression**

What grade/year are you in? I'm in the first grade in middle school. I'm a first grader in middle school. I'm in the 7th grade. I'm a 7th grader. ----------------------- Are the answers all acceptable? Which one is commonly used? Can we use both 'grade'...
*Friday, April 18, 2008 by John*

**working with data**

josephs final averages in science class are shown in the table below. homework % toward final grade-20% average-93 quizzes % toward final grade-20% average-92 tests % toward final grade-40% average-85 final exam % toward final grade-20% average-? what is the minimum score ...
*Sunday, February 24, 2008 by mike*

**Data managment math**

7: The basket ball team has total 14 players : 3-1st year player,5-2nd year player and 6-3rd year player (a) in how many ways can the coach choose a starting line up(5 players) with at least one 1 st player. (b) in how many ways can he set up a starting lineup with two 2nd ...
*Monday, January 28, 2008 by Samir*

**english**

when writing the word GRADE ONE in a sentence...would it be Grade One (where there both capital) Grade one (where only grade is capital) or grade one (where none are capital)
*Sunday, January 13, 2008 by spelling-grammer*

**Physics/Moons Orbit**

The Moon describes an elliptical path around the Earth and a complete orbit is 29d 12h 44m 3s Approximately! At its closest during this orbit it is termed Perigee and at its farthest Apogee. However there must be 2 other points opposite Perigee & Apogee where the moon is at ...
*Saturday, October 13, 2007 by Mike*

**2nd grade math**

what is mental math and how does it work. the question is use mental math to find the missing numbers. look for the pattern in each chart.the chart ooks like eight boxes two rows of four, the filled in is 0,1,2,3,4the second row is empty, the second queston is make 6 two rows ...
*Monday, August 27, 2007 by albert*

**physics-energy conservation**

some people refer to heat as "low grade energy. a)how is low grade energy different from high grade energy? b)give two example of high grade energy When heating a cup of tea, which would be preferable...a stove with a burner on top, or a heating pad? High grade energy is ...
*Tuesday, May 8, 2007 by Emma*

**chem**

this is my question Calculate the hydronium ion consentration and the hydroxide concentration in blood in which the PH is 7.3. I dont have invlog on my calculator so I hit log(7.3)= .863 for hydronium. Is this dumb for me to do? That is dumb for you to do. Get a calc that has ...
*Friday, March 23, 2007 by Jon*

**Permutations**

I am having trouble with this maths problem: There are 8 people at a round table - 6 guests, 2 hosts. How many possible arrangements are there if the 2 hosts aren't allowed to sit next to each other. Thanks hint: sit the two host first, then let the guest find their seats...
*Sunday, January 28, 2007 by Kevin*

**math / linear programming**

Two factories manufacture 3 different grades of paper. The company that owns the factories has contracts to supply at least 16 tons of low grade, 5 tons of medium grade, and at least 20 tons of high grade paper. It costs $1000 per day to operate the first factory and $2000 per...
*Tuesday, January 2, 2007 by Tim*

**Stats**

Dee's store monthly sales for April, May, June are three independent random variables with means and variances as follow: April: Mean: $9500 Variance: $1250 May: Mean: $7400 Variance: $1425 June: Mean: $8600 Variance: $1610 a) find the mean and standard deviation of the ...
*Sunday, October 29, 2006 by Dee*

**Math**

Two regular hexagons have their sides in the ratio 2:3.Find the ratio of the areas of the 1 St & 2nd hexagons?
*Monday, February 8, 2016 by MD amir *

**English **

_____ and _____ are in Brooklyn What does this mean. It asked what borough we live in and I said Brooklyn and I don't get what the 2nd question is
*Tuesday, February 2, 2016 by Adam*

**math**

the sum of the reciprocal of two number is 1/2 twice the reciprocal of the sixth less than five times the reciprocal of the 2nd. what are the original #?
*Friday, January 29, 2016 by divine*

**Math**

The 2nd and 5th term of a.p are -7 and 56 respectively find the first term. The common ratio. The sum of the five term
*Wednesday, January 27, 2016 by Tola*

**input output**

I'm in 12th grade. But I find this 6th grade problem a bit CHALLENGING. X: 4 12 Blank Blank Y: 6 18 Blank 60 Someone please solve this. Like.. WHAT. (Solve the blanks)
*Tuesday, January 26, 2016 by lucas*

**math **

The 10th term of an arithmetic progress in 28 and the 7th term is 19.calculate the 1st,2nd and 3rd terms of the progression
*Tuesday, January 19, 2016 by Kamogelo *

**MATHS**

If the 1st,2nd,3rd term of a G.P areX,X+1,X+4 respectively,find X
*Monday, January 18, 2016 by STEVIUM*

**Math**

Find four consecutive,positive,even integers such that the product of the and the last integer equals the square of the 2nd integers
*Friday, January 8, 2016 by Maxelin*

**math**

The 5th terms of G.P is 4375 and 2nd term is 35 find ?
*Tuesday, January 5, 2016 by A.P and G.P*

**Math GP**

The 1st term of an infinite GP exceed s the 2nd term. Buy 2 and its sum is 50 find the series
*Thursday, December 17, 2015 by Anonymous*

**Math**

I can grade 5 papers in 45 minutes how many papers can I grade in 1.5 hours
*Monday, December 14, 2015 by C*

**MATH**

Reiny - the problem with the different inequality signs was typed from the textbook. I will notify instructor Thanks Another problem 3<5x-27<53 1st part 3<5x-27 27+3<5x-27+27 30/5 < 5x/5 6<x 2nd part 5x-27<53 5x-27+27<53+27 5x/5 < 80/5 x<16 ...
*Thursday, December 10, 2015 by Amie*

**Grades **

If I have an 82 in a class right now and a test is 50% of my grade but I get a C what would my total grade in the class be
*Thursday, December 10, 2015 by Anonymous*

**Math **

find three consecutive even integers that 3 times that 1st is equal to the 2nd added to the 3rd plus 38
*Wednesday, December 9, 2015 by Kimberlee *

**quine**

The 2nd and 5th term of a geometric progression are - 6 & 48 find the sum of the first four term respectively
*Thursday, November 12, 2015 by opeyemi*

**History**

Which amendment protects citizens from having their homes searched without a warrant A.)2ND B.)4TH C.)6TH D.)8TH C?
*Friday, November 6, 2015 by YRN DJ*

**11 Grade College Prep Math-Based Physics**

Not good at physics, so could someone check these practice test questions please? Explanations are appreciated. 1. Which of Newton's Laws says you cannot touch anything without being touched? a) 4th b) 2nd c) 1st d) 3rd *** 2. A 3.00 kg ball is dropped from rest from the ...
*Tuesday, October 27, 2015 by Ana*

**A.U.D**

The 2nd And 4th Term Of A G.P Are 8 And 32 Respectively What Is The Sum Of The First And Four Term
*Monday, October 26, 2015 by Jamiu*

**Mathematics**

The 2nd and 5th terms of a Gp are -5 and 48 respectively.find the sum of the first four terms.
*Saturday, October 24, 2015 by Amarachi*

**pre calc**

Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and 70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast blend that contains one third of a pound of A grade tea and two thirds of a ...
*Friday, October 9, 2015 by allexelle*

**pre calculos**

Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and 70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast blend that contains one third of a pound of A grade tea and two thirds of a ...
*Friday, October 9, 2015 by allexelle*

**prasanna high school**

Subject:maths. question: the sum of first 6terms.of an aritmetic progression is 6.the product of 2nd term & 5th term is -80 find the terms of A.P.
*Friday, October 9, 2015 by Anonymous*

**maths **

The sum of first 6 terms of an Arithmetic progression is 6 the product of 2nd term and 5th term is -80 . Find the terms of A.P.
*Thursday, October 8, 2015 by Anonymous*

**Probability **

Ten horses run in a race. How many different arrangements of placing 1st, 2nd , 3rd? I tried by doing 10!over 7! But I don't know if that is correct , also how can you tell the finishing number as well.
*Wednesday, September 30, 2015 by Amber*

**Algebra**

In his mathematics class, John has taken 3 tests, each worth 20% of his total grade. His grades on those tests were 92%,83%,and 85%. He has an 100% average on his homework, worth 10% of his grade. All that remains is a final exam worth 30% of his total grade. To the nearest ...
*Thursday, September 17, 2015 by -N*

**Math**

The 6th term of an arithmetic sequence is 3 times the 2nd term. Prove that the 10th term is twice the 5th term. tn=t1+(n-1)d
*Thursday, September 10, 2015 by Naomi*

**LAW**

The __________ Amendment right to counsel applies during plea bargaining because charges have already been filed before bargaining commences. a. 2nd b. 6th c. 8th d. 14th is it D
*Tuesday, September 1, 2015 by Amy*

**math**

I don't understand factoring. One of my homework questions asks for that. The question is "The area of a rectangular garden is given by the trinomial x to the 2nd power plus x -42. What are the possible dimensions of the rectangle? Use factoring.
*Thursday, July 30, 2015 by Barry*

**Nursing**

My current overall average is a 76%. Another grade of 67 needs to be added in. That grade is worth 10%. What will my final average be?
*Wednesday, June 24, 2015 by Elaina*

**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 *

**Grade**

What is my grade if I have two 100's and two 70's
*Tuesday, September 9, 2014 by Anonymous*

**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*