# Math grd12

4,586 results, page 34-
## Calculus!!!

I need your help... I've posted this question a while ago but no one has answered it yet. Please please help me. Which of the following series can be used to compute ln(.8)? a) ln(x-1) expanded about x=0 b) lnx about x=0 c) ln x in powers of (x-1) d) -
## Math

The combined math and verbal scores for students taking a national standardized examination for college admission, is normally distributed with a mean of 620 and a standard deviation of 220. If a college requires a student to be in the top 10 % of students -
## Math

Hi. I found this question on a Math Counts practice test and it seriously confused me. I've never learned about this, and it would help if someone helped me. Thanks in advance. How many elements are in the intersection of the set of all the prime numbers -
## Math: Mean, Median, Mode, Range & Finding the devi

What is deviation? And what is the definition of frequency distribution & how would I solve a problem in 8th grade math with this problem...My child is asking about this problem she has in an 8th grade book. Given the following numbers -
## geometry

In a triangle ABC, angle B is 3 times angle A and angle C is 8 degrees less than 6 times angle A. The the size of the angles. Size of angle A is = Size of angle B is = Size of angle C is = can someone please help me with this..? I am very weak at -
## Pre Algebra HELP

I don't know exactly what you mean by typing like this 2y3(4x-3y). I assume that means 2y cubed (2y^3) or 2y3 times (4x-2y) That becomes 8xy3 -6y4 Expand all the parenthesis, then gather like terms, and add them. See -
## STATISTIC HELP

1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing probability and answer the questions that follow. Plain Brown Blue Green Orange Red Yellow Probability 0.3 0.1 -
## math - 5th grade

Hello: I am having difficulty witht the following math: Question #1 If the area of a circle is 27 sq. in. What is the radius? I am coming up with an answer of 13.5 sq. in. Is that correct? If not, can you show me step by step how to get the answer? -
## To:Writeacher

Thanks for your help! I have questions of subject math. What is 100 divided by 50? So 100 is the dividend and 50 is the divisor And answer is 50 Am I correct? What do you call the answer of the division problem? Your answer of 50 is correct. The answer in -
## math

find the percent increase in the population between 1950-2000. 965,000,000 in 1950 2251,000,000 in 2000 I tink it is 2251 / 965 = 2.33 = 233% Is ths right or did I do my math wrong -
## 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. -
## MATH!!

~Determine whether each sequence is arithmetic or geometric fund the next three terms~ *Doing a math unit test and stuck on these five* 1.14,19,24,29.... 2.-2,8,-16,32... 3.81,27,9,3... 4.What are the first four terms of an arithmetric sequence if the -
## stats

Katie must take five exams in a math class. If her scores on the first four exams are 77, 79, 95, and 93, what score must Katie get on the fifth exam for her overall mean to be at least 80? The maximum score on an exam is 100 points. If it is not possible -
## math

still can't solve .32x + .20y = 3.92 it's my last math question for the day!!!! What do you mean solve it? suppose you bought some 32 cents stamps and some 20 cents stamps. you spent $3.92 for 16 stamps. how many of each stamp did you buy? i got the -
## Algebra

Need help plz. Don't really get this "reversing the digits" What is this really called in math language? Prob:Find the product of 32 and 46. Now reverse the digits and find the product of 23 an 64. The products are the same. Does this happen with any pair -
## MATH 115

I have math questions I need to check my answers can you please help me 1. 4x4x4x4x4 as a power of 4 answer 4 to the fifth power 2.a bedroom is 10 ft by 11 ft what is the perimeter? answer 42 ft evaluate 72/8-9/3=6 3.Jamal is fencing a rectangular field -
## Math

I am a four digit number, I am between 2,000 and 3,000 the digit in the ones place is four times as much as the digit in the thousands place. Only one of the digits are the same. The digit in the tens place is one more than the digit in the hundreds place. -
## essay

As a immigrant, I know that I have less chance to get into the University of California than other people. But I never give up the thought of getting into UC. As I mentioned before, I have taken as many college prep classes I could to meet the UC's -
## Math

For the equation y = -6x, what is the slope and y intercept? The formula is y = mx + B. I know that m = the slope and B = the y intercept. So in the equation y = -6x, what is the slope and y intercept? Is -6 the y intercept or the slope? Because if it's -
## Math

For the equation y = -6x, what is the slope and y intercept? The formula is y = mx + B. I know that m = the slope and B = the y intercept. So in the equation y = -6x, what is the slope and y intercept? Is -6 the y intercept or the slope? Because if it's -
## Math equation

The Congress of the United States signed the Declaration of Independence in 1776. Find the difference in years between the year that the Congress signed this document and the year that you were born. I was born 2003. Is this right? y - 1776 = 2003 or 2003 -
## Math

I need help on this math problem. The width of a certain painting is 5cm less than twice the length. The length of the diagonal distance across the painting is 107cm. Find the length and width. Round your answer to 2 decimal places. Can you check is my -
## Math vocab

What does distance/time/rate of speed mean?? Its all one word AND IM SOO CONFUSED! Movement? I am confused also. Rate of speed is not a common term. Speed is rate of motion , or rate of change of distance per time. i need help on my math vocab what is a -
## Chemistry

Explain in terms of forces between structural units why H2O2 has a higher melting point than C3H8. Also, which of the following has a lower melting point? NH3 or AsH3 C3H7OH or C2H5OCH3 I know that this has to do with hydrogen bonding. Can you possibly -
## math 118

On a math test a student where the mean is 50 and the standard deviation is 12, a student has a z-score of 0.83. What did the student score on the test? -
## Math

I have a math sheet for homework and most questions are similar to the following: Bob is making treat bags for his daughter's birthday party. he decided to use the recipe below for each bag. 1/3 cup peanuts 3/4 cup pretzels 1/5 cup raisins 2/3 cup popcorn -
## MATH - circles, circles, circles

Happy Friday Math Gang; I can't seem to wrap my head around this one... If two circles have at most 2 places of intersections, 3 circles have at most 6 places of intersection, and so on... How many places of intersection do 100 circles have? Well... I -
## math

What is the mean of the scores for Bob? _____ Team | Bowling Scores Member | Game 1 | Game 2 | Game 3 Bob | 92 | 118 | 105 Craig | 127 | 101 | 96 Kim | 131 | 128 | 122 Nancy | 127 | 109 | 115 Phillip| 113 | 109 | 122 what is mean in math again? -
## Math

Explain a real-world problem that you used math to solve. What mathematical expressions did you use in your problem solving? Define your variables and explain your expression. My real-world situation would be making a cake and converting the cups into oz. -
## Chemistry

A sample of Oxygen has occupies 1.00x10^6mL at 575mm Hg is subjected to a pressure of 1.25atm. What will the final volume of the sample be if the temperature is held constant v2=(p1)(p2)/p2 I'll have to convert 1.25atm to mm first 1.25atm*760mm/1.0atm = -
## math,help

can someone help me with this i am lost now i've been doing math for the past 8 hrs. Problem # 1 solve: 4(x-10)-3x=x-40 Problem # 2 solve for t: a = p + prt Problem#3 translate to an algebraic equation 7 less than the quotient of a number and 3 is twice -
## Math

Groups in math class have 4 green marbles, 6 yellow marbles, and 10 black marbles. Each group pulls out a marble, records it, and then replaces it 50 times. The class complies its data. how many times can you expect to pull out a green marble with 1000 -
## math

Lois got 27 problems right on a math test. If this is 90% of the test, how many problems were on the test? -
## English

Find the student who looks sad. Find a student who looks sad. (Which one is correct and common?) How does Junsu look? He looks sad. Do you know why? Yes, I do. He got 100 points in English. He got 60 points in math. He got the best points in -
## Math

In a golf math Jesse scored 5 over par Neil scored 3 under par, Felipo scored 2 over par and Dawson scored an even par. Order the players from least to greatest score I don't know how to answer this one because I don't know what par is in golf? Is it a -
## Algebra

What is the answer? I came up with C. is this correct? Thanks for the help in advance! f(x)=root sign, and inside that x-2 and g(x)x-7. Which of the following is the domain of the quotient function f/g? A. (-infinity,2] B. (-infinity,7) U (7,infinity) C. -
## @ Angie - math

Angie, I've reposted your question. You've posted this several times on other people's questions. That's called piggy-backing here and we delete posts that interfere with others' questions. Name: Angie Subject: math Message: Chad climbs a 57-foot tower to -
## Geometry

I HAVE A QUESTION. When I post a question and there is now response to it does it means that my answer to my questions are correct? I post two questions yeaterday and received no response .Today I post the same two questions and still got no response. They -
## Stoichiometry

I am taking an online chemistry class and I do not at all understand how on earth how to do stoichiometry. I just don't get it, its not that I don't know how to do the math, but figuring out how to ger the information. PLEASE HELP!! When 11.7 grams of iron -
## statistics

In a recent study on gender differences in education, a sample of 7 boys had a mean score of 18.5 and a standard deviation of 4.1 on a Standardized Math Test. A sample of 11 girls had a mean score of 19.9 and a standard deviation of 3.6 on the same test. -
## Math

Of the coins in Tricia's bank, 5/7 are quarters. If Tricia has 95 quarters in her bank, how many coins does she have in all. Is this correct? 5/7*x = 95 (7/5)(5/7)*x = 95 x= 95*7/5 95x7 = 665 665/5=133 x=133 Thanks from a Grandma helping w/4th grade math -
## Math

A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she notices that it cannot be done with the number of students in her class. However, if the number of students were any larger, the -
## Math

A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she notices that it cannot be done with the number of students in her class. However, if the number of students were any larger, the -
## Math

You have a Spanish club meeting every fourth day and a math club meeting every tenth day. When is the first time they will meet on the same day? My Answer: 4 + 10=14 they would meet on the 14th day Would that be the correct answer? I am confused. -
## Algebra

Tom took five math tests and got an integer score on each of them. He never scored higher than 90, and his lowest score was the fourth test. If his average score, rounded to the nearest integer, was 82, what is the lowest possible score he could have -
## Algebra

Tom took five math tests and got an integer score on each of them. He never scored higher than 90, and his lowest score was the fourth test. If his average score, rounded to the nearest integer, was 82, what is the lowest possible score he could have -
## Hardwork I done already! :)

7th Grade 7th grade Grades (1st quarter to 4th quarter): English 7 - 99 Math 7 - 91 Social Studies 7R - 91 Science 7R – 80 Fine Art 7 (advance art) – 100 Strings 7 – 100 Gym 7 and 8 – A GPA: 1st Quarter – 93.50 2nd Quarter – 3rd Quarter – 4th -
## Somebody answer

answer questions Ask a question. I have been working on the question for at least an hour. The question is: I have to spend 100 dollers and by 100 brains. Cow brains 5.00 Pigs 2.00 sheep 0.10 I have to buy one of each. I am very confused. Are teacher gave -
## Math

10. Nathan got a 30% discount when he bought a new shirt. Tyler purchased the same shirt but received a 70% discount. Which of the following is equivalent to the difference between their percents of discount? A. 2.50 B. .7 C. 2/5 D. 1/4 C 12. 3/8 of the -
## algebra

Find the two consecutive odd integers such that 5 times the first integer is 12 more than 3 times the second. can some explain to me how to get this i was thinking the formula would be ' 5x+12=3x No, that's not it. The second integer is x+2, since it is -
## Calculus

Find the length of the entire perimeter of the region inside r=5sin(theta) but outside r=1. 1=5sin(theta) theta=arcsin(1/5) r'=5cos(theta) I tried the integral between arcsin(1/5) and pi-arcsin(1/5) of (((5sin(theta))^2+(5cos(theta))^2))^1/2 which gives me -
## Math

Please help with this math word problem: Jamal has a 5X7 picture that he took on his summer vaction and he wants to use a photo copier to enlarge it to an 8X10 picture. To enlarge Jamal has to specify a percent between 50% and 200% on the copier. Explain 2 -
## Math Word Problem

Please help with this math word problem: Jamal has a 5X7 picture that he took on his summer vaction and he wants to use a photo copier to enlarge it to an 8X10 picture. To enlarge Jamal has to specify a percent between 50% and 200% on the copier. Explain 2 -
## math

Hello tutors by any chance is there anyone who can assit me with theprevious problems that i posted..dealing with math subject Here is a website explaining how to invert a 3x3 matrix. http://www.everything2.com/index.pl?node_id=1271704 Many steps are -
## chemistry

Oops I left a part of the question out: 2. Mercury poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts with essential enzymes, leading to irreversible inactivity of these enzymes. If the amount of mercury in a -
## Algebra

Word Problem: Jack mows the lawn in 4 hours, mary mows the lawn in 5 hours. how long will it take them if they mowed the lawn together? I have a hard time figuring out which formula to use to solve a problem in a word problem can anyone help and tell me -
## math

I'm having problem understanding this answer. Product A is a 12-ounce bottle of generic popcorn oil that sells for $1.39, Product B is a 24-ounce popcorn oil bottle that costs $2.79, which is the better buy? Is this math problem right or no, 12/1.39=8.633 -
## MATH

1 My Math problem Intergers 2-(-2) = -4 iS -4 CORRECT 2.Between noon and 3pm, temp dropped 9 degrees (f). It increased 4 degrees (f) between 39m & 5pm and dropped 15 degrees(F) between 5om and midnight.If the temperature was -2 degrees (f) at midnight, -
## Statistics

I am doing a stats study and im stuck on what test to perform. Please look at my subject and advise me.. I am testing to see whether a person that is best in math and science will be able remember more numbers than letters and if a person that is better in -
## math, Jay

How do these fractions turn into the following fractions. 1/3=10/30 1/5=6/30 1/10=3/30 There is a fundamental fact of math that says if you multiply anything by one , nothing changes. but 1 = 3/3 = 10/10 etc. So if you have a fraction, and multiply it be -
## Math

The current population of Summerfield is 16,359 people, which is 90% larger than when David moved there. What was the population of Summerfield back then? I need some help, there's this question on IXL (It's a website that has math problems for you to -
## Re: Physics/Math

A can of sardines is made to move along an x axis from x1 = 0.2 m to x2 = 1.2 m by a force given by F = iF0exp(-0.4x), with x in meters and F0 = 4.5 N. (Here exp is the exponential function.) How much work is done on the can by the force? For Further -
## Math Essay

I have to write this paper over the history of math, can you please give me some other websites that I can use? So far I have one website from wikipedia. Also, can you please read my introduction? As of today, there are plenty of new developments in the -
## MATH

I have math questions I need to check my answers can you please help me 1. 4x4x4x4x4 as a power of 4 answer 4 to the fifth power 2.a bedroom is 10 ft by 11 ft what is the perimeter? answer 42 ft evaluate 72/8-9/3=6 3.Jamal is fencing a rectangular field -
## Math

A glass is filled with water and the total weight is 220g. If the glass is halffilled with water, the total weight is 120g. What is the net weight of the glass? There may be a logic way of doing it but the following is the longer "math" way. G = weight of -
## Math (Algebra)

I am having a bit of trouble with the question stated below. I am home-schooled and learning math on your own has proven to be quite the difficult task. If someone could please explain how to do this as thoroughly as possible, I would greatly appreciate -
## Reposted - math - Ashley's other question

http://www.jiskha.com/display.cgi?id=1169164297 Posted by Ashley on Thursday, January 18, 2007 at 6:51pm. px+qy=r 2px-qy=2r find the solution. For Further Reading math - bobpursley, Thursday, January 18, 2007 at 7:09pm There are five unknowns here: p, q, -
## Mathematics

Maria answered all the problems on her math test. She answered 80 percent of the problems correctly. If she answered 6 problems incorrectly, how many problems were on the test? -
## math

I asked sue a question yesterday and don't understand the answer can you explain? Here what it was I think this question has a typo because none of the multiple choice answers fit. The question is which of the following values is in the solution set of -
## Chemistry

three separate questions 1. An empty graduated cylinder weighs 82.450 g. When filled to 50.0 mL, with an unknown liquid it weighs 110.810 g. What is the density of the unknown liquid? 2. It is valuable to know that 1 milliliter (mL) equals 1 cubic -
## COLLEGE CALCULUS. HELP!

i don't know how to start this problem. i don't like cos and sin. im so confuse. 1.f(x)=sin(sin(x)), find f'(x) 2.f(x)= 4sin^4x, find f'(x). this problem i couldn't find it in my math book. i never see it before. because of sin exponent 4 -->sin^4 -
## HELP MATH

Thank you Reiny. I really appreciate the help but I am not really understanding the the exprssions well enough to explain the answer. Also at first I was thinking that the answer has nothing to do with actual money but only how much inventory or merchanise -
## Math

Hi - I'm reposting this thread as there was some encoding issues in previous version that I clarified near bottom. Thanks. Hi - I'm having problems drawing a diagram for the following question. The part I find unclear is "they mark a point A, 120 m along -
## math

i need help! my last math question cant figure out! whats the rule for input 3 output 9 input 4 output 16 input blank output 25 input 6 output blank input 10 output 100, thank you been stuck for over 30 minutes!!!! -
## English

1. I studied math for 10 years, but I'm still not good at it. 2. I have studied for 10 years, but I'm still not good at it. (Which one is grammatical? Do we have to sue the present tense or the present perfect tense here?) -
## pHYSICS

A BALL IS THROWN STRIAGHT UPWARD AND RETURMS TO THE THROWER'S HAND AFTER 3 SECONDS IN THE AIR. A SECOND BALL IS THROWN AT AN ANGLE OF 30 DEGREES WITH THE HORIZONTAL. AT WHAT SPEED MUST THE 2ND BALL BE THROWN SO THAT IT REACHES THE SAME HIEGHT AS THE ONE -
## For <b>marie flore joseph</b>

Please do not add your new question as a response to somebody else's post. click on "Post a New Question" above to post your problem. Here is your question : Math - marie flore joseph, Monday, April 5, 2010 at 10:37pm the difference of the squares of two -
## Math

Hello, I need help with a 5th grade math question. The red train returns to central station every 45 min. The blue train returns to central station every 60 min. If both trains leave the station together, in how many min. will they both be back at the -
## math, inequalties

IT WILL TAKE AT LEST 360 POINTS FOR KIKO'S TEAM TO WIN THE MATH CONTEST. THE SCORES FOR KIKO'S TEAMMATES WERE94, 82, AND 87, BUT ONE OF KIKO'S TEAMATES LOST 2 OF THOSE POINTS FOR AN INCOMPLETE ANSWER. HOW MANY POINTS MUST KIKO EARN FOR HER TEAM TO WIN THE -
## Math

Please help me with this math problem. A woman is given a loan of $20,000. for 1 year. If the instrest charged is $800, the was was the intrest rate on the loan? To get the answer I set the problem up like this: R= 800/20,000= 25(1/100)= 25/100= 25% but I -
## math 116

Will someone please help me slove this problem. A family refers to a group of two or more people related by birth, marriage,or adoption who resides together. In 2,00in Country A, the average family net worth was $460,000, and there were about 9.3 x 10 to -
## Urgent everything

Answer as many possible please! 12X13+167-34X56X47= What does bipartite graph mean? When was Judy Blume born? How is 2 negative 1 equals 0? Is Sheila a german name? Thats some hard questions for a year four like me.PLEASE HELP ME For your Sheila question: -
## Pre Calculus 12

Im on the chapter of permutations/combinations/fundamental counting principle need help with 2 questions 1. emma is arranging her books in piles on her desk. she has 5 math books, 3 english books, and 4 science books. how many ways can she arrange them if -
## math

I have a question in my math class in college. Here is the question, but I just need help on HOW to answer it. My text isn't clear at all. A box contains 2 black balls and 3 gold balls. 2 balls are randomly drawn in succession. a.if there is no -
## Math

I need an expiation on a math concept, because I know the right answer, I just don't know why it is The problem says to find the absolute maximum and minimum of the function f(x)=x^3-12x over the interval [-5, 2] I found the 1st der. 3x^2-12 and set equal -
## chemistry

If you need to prepare 250.0 mL of a pH 5.00 buffer tha t has a total buffer concentration of acetic acid + sodium acetate of 0.050 M, how many moles of each will you need to prepare the solution? Given solutions of acetic acid and sodium acetate with -
## Math

I'm confused about a question on a math test. The question is: Which statement is a true statement? The answer choices are: A. All rectangles are squares B. All squares are rectangles C. Every rhombus is a rectangle D. Every rectangle is a rhombus. I -
## math

What is the mode of the scores for Game 3? _____ Team | Bowling Scores Member | Game 1 | Game 2 | Game 3 Bob | 92 | 118 | 105 Craig | 127 | 101 | 96 Kim | 131 | 128 | 122 Nancy | 127 | 109 | 115 Phillip| 113 | 109 | 122 what is the mode in math again? and -
## math

I asked this question but no one answered it. Can someone please help explain this before I have my math test today. THANKS. A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards the carpenter noticies he has -
## maths

Solve 1.-6b+1+4b= -3b+6 2.8x - 4x = -8 3.the sum of twice a number and 14 less than the number is the same as the difference between -38 and the number. what is the number? 4. some number is six more than eight. what is the number? 5. 3.2x + 5.6x = 3.1 + -
## Algebra

On a math test, k students in the class averaged 80%. The remaining students in the class,q students, averaged 94% on the test. The class average on the test was 88%. Express the ration of k/q in simplest form. -
## Math 7th grade

I have a question on math if I start to look for a object hidden by making the center of a field as (0,0), with coordinates giving distances in yards. Coordinates to the north or east are positive and coordinates to the south or west are negative. And I -
## Statistic Please Check

Check this out please Thanks Lesson 3 Unit 2 Probability Couplements, Disjoint Events and the addition Rule 1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing -
## Math.....

One: plz don't judge the fact that I'm horrible at dividing fractions. Two: Here's the question: A cookie factory uses 1/6 of a barrel of oatmeal in each batch of cookies. The factory used 2/3 of a barrel of oatmeal yesterday. How many batches of cookies -
## English

Read the following sentences from "The High School Step Team." As Karla turned away from Jade and walked down the hall towards the math class, she pictured her cousin shrugging her shoulders. "Okay, do whatever you think is best," Jade said. "I'll see you -
## Algebra 2

Before I go on and give you the problenms let me explain. i am not some lazy kid trin to get people to do my homework over the internet. I am freshman that just recently skippeda garde in math and I need some help. The problems below are from my pop quiz -
## Algebra 2

Before I go on and give you the problenms let me explain. i am not some lazy kid trin to get people to do my homework over the internet. I am freshman that just recently skippeda garde in math and I need some help. The problems below are from my pop quiz -
## Effective Learning Environment

Which would be an important consideration for developing a preschool classroom? A. Unlike kindergarten children, children at this age don't participate in long-term projects, so they don't need storage for longterm work. B. You won't need a science or math -
## MATH

My Math work instructions is place the numbers from least to greatest. 7 squared, 2, 8/2 squared = 2, seven squared, and 8/2 squared. 10 squared, pi, 3.5 = pi, 3.16, 3.5. 220 squared, -10, 100 squared, 11.5 = -10, 220 squared, 100 squared, 11.5. 8 squared, -
## Math 3rd grade

The roadrunner bird can run 14 times miles per hour. That's 7 times faster than an ostrich can walk. How fast does an ostrich walk? 7 X ?= 14 I would write the equation like this. Not sure my 8 year old would be able to do this. She knows that 7x 2 or