Sunday
August 2, 2015

Homework Help: 11th Grade

Calculus grade 12 lines and planes
Find the value of k so that the line [x,y,z] = [2,-2,0]+ t[2,k,-3] is parallel to the plane kx +2y - 4z= 12
Monday, June 10, 2013 by Baljinder

Calculus Grade 12
Determine the value of k such that the points (4,-2,6), B(0,1,0) and C(1,0,-5) and D (1,k,-2) lie on the same plane.
Monday, June 10, 2013 by hanaya

Calculus Grade 12
Find the equation of the plane that passes through the point (3,7,-1) and is perpendicular to the line of intersection of the planes x-y-2z+3=0 and 3x-2y+z+5=0
Monday, June 10, 2013 by Amber

Math
Nicole drew a circle on the chalkboard that had a radius of 15 cm. Which is closest to the circumference in centimeters of the circle she drew on the board? A.30cm B.45cm C.24cm D.90cm D Which statement is not supported by the information in the graph? 6th graders 188 boys 192...
Tuesday, June 4, 2013 by Jerald

English 8R - HW CHECK (PLZZZ READ!)
Please read my essay to see if it's good. PLEASE LET ME KNOW IF THERE ANY OTHER DETAILS I COULD ADD! I REALLY want to get a good grade for assignment and this is my FINAL GRADE! Should the story of Anne Frank and the Holocaust be taught in Middle School? The story of Anne ...
Thursday, May 30, 2013 by Laruen

Math - 8th Grade
Please help: The distance from home plate to second base on a softball diamond is 84.853 feet. This is the same as the distance from first base to third base. What is the area of a softball diamond? Round your answer to the nearest square foot. 1,800 ft.2 3,558 ft.2 7,200 ft.2...
Wednesday, May 29, 2013 by Christopher

7th grade Science
1. The atmosphere of Earth is an example of a ______solution.(1point) liquid-liquid gas-liquid gas-gas** solid-liquid Am I correct?
Monday, May 27, 2013 by Gabby

Grade 11 english
I have to compsre revenge in Wuthering Heights by Emily bronte and the contemporary issue of politics. I am doing a powerpoint presentation and it should be 5 minutes long. So what do you suggest my slides be and howmany. Please help me I really don't know how to compare ...
Saturday, May 25, 2013 by Mercy

6th grade science
The erosive energy of rivers alters landscapes over periods of millions of years. Which of the following increases a river's rate of erosion? A)low gradient B)high discharge C)small load D)decreased speed
Wednesday, May 22, 2013 by sheri

Pre-calculus
As you drive down a mountain, you see a sign that says there is a 6 degree grade over the next 5 miles. What is the change in elevation over that 5 mile stretch?
Wednesday, May 22, 2013 by Natalie

Math 7th Grade
A bag contains 5 red,2 blue,and 4 white marbles. What is the probabiltiy If Sam picked a red marble replaced it and picked a white marble?
Wednesday, May 22, 2013 by Adnan

life orientation grade 12
in 10-15 lines critically discuss 5 ways in which global warming impacts on the community
Tuesday, May 21, 2013 by Anonymous

4 grade math
Find two mixed numbers so that the sum is 15 3/10 and the difference is 8 5/10
Tuesday, May 21, 2013 by alyssa

7th grade math (help!)
Hey! 2y-8y=-4 Do I subtract or do I add?!? Something like that right?!?
Tuesday, May 21, 2013 by Abby

4th grade math
Find two mixed numbers so that the sum is 8 4/8 and the difference is 2 2/8
Tuesday, May 21, 2013 by alyssa

Grade 12 LIFE ORIENTATION
Discribe the lifestyle disease/behaviour.Mention 5 factors that contribute to the disease/behaviour
Tuesday, May 21, 2013 by Nomzamo

Math- 5th grade
Shauna baked bread rolls to sell at a school fair. 2/5 of the rolls were chocolate rolls, 1/3 were raisin rolls, 1/4 of the remainder were strawberry rolls, and the rest were vanilla rolls. What fraction of the rolls were vanilla rolls?
Tuesday, May 21, 2013 by Ashli

7th grade math
Hello there! I am totally confused what does x = 4x+3+2x= 54/9 Thank you ;) & please help me!?!
Monday, May 20, 2013 by Abby

7th grade math help
Hi I need help on how many outcomes are possible for these? For breakfast choices possibilities. I tried, but I feel like I am not getting it. Coffee (c) orange Juice (o) scarmabled (s) hard boiled (h) poached (p) bagel (b) toast (t) Please help??
Monday, May 20, 2013 by Mayla

7TH GRADE MATH
If the radius of a cylinder is 1.8 meters and its height is 7 meters, the volume of the cylinder is approximately 71.2 cubic meters...true or false I say false because shouldn't it be 71.2 cubic 3? Am I correct?
Sunday, May 19, 2013 by Daniel

chemistry
Describe the preparation of 2litre of 0.05molar silver from the primary standard grade solid.
Sunday, May 19, 2013 by Ade otunba naim

chemistry
Describe the preparation of 2litre of 0.05molar silver from the primary standard grade solid.
Thursday, May 16, 2013 by adebimpe

Leadership Quality
Is staying after school to help file papers and grade papers a leadership quality?
Wednesday, May 15, 2013 by Celest

7th Grade Math ~Multiplying Polynomials
1. (2x)(10x) (1point) 20x 12x 20x^2** 5x 2. -3m(m+8) (1point) -3m^2+24 -3m^2-24m** -24m^2 -4m+5 3. 4d(2d-9) (1point) 8d-36d -d -28d^2** 8d^2-36d 4. 5b(6b-10) 11b-10 5b^2+6b-10 -b-10 30b^2-50b** Are these right
Tuesday, May 14, 2013 by Gabby

4th grade math
Hi! This question says Joe is thinking of o function machine.He says that the output is 12 if the input is 4.what are 2 rules that he could be thinking of for his function machine?( I would really be grateful if you helped me) ;)thanks
Tuesday, May 14, 2013 by Lexie

7th grade math
Horses, pigs and cows is really easy I can do it in my head but, my teacher told me I would have to start showing my work. I really have no clue how to do that I have always done it in my head. Can you pretty please help me I would gladly appreciate it. Thank you. :)
Tuesday, May 14, 2013 by Abby

7th grade math
How does functions in math relate to what you put into it is what you get out of it? Can you explain for me? i'm thinking it doesn't really? one example if you can like in sports or goverment? Don't know.
Tuesday, May 14, 2013 by Tina

8need a function rh grade math
a 154 lb person burns 420 calories per hr riding an exercise bike at 15 mph. Need a function rule to represent the total calories burned over time.
Tuesday, May 14, 2013 by Jane

5th grade math (dividing fractions)
Can you check this problem? How many twelfths are in one sixth? work: 1/6 divided by 1/12 = 1/6 * 12/1 = 2 ans= 2
Monday, May 13, 2013 by Alex

Math
I made a 95 on a test of 20 questions, but it took 35 tries. What is my real grade?
Sunday, May 12, 2013 by Jerome

Grade 12 Calculus
solve cosx= (squareroot3)/ 2 where 0 <(with a line underneath) x <(with a line underneath) 2 pie a) how many solutions are possible? b) in which quadrants would you find the solutions? c) determine the related angle for the equation. d) determine all the solutions for ...
Saturday, May 11, 2013 by Maria

Grade 12 Calculus
I need helping in filling in the blanks/ -the angle formed at the centre of the circle by two radii is the _______ angle. -cos delta, sin delta, tan delta are known as the ___________trigonometric ration -cos (pie/2 - x)=sinx is an example of a ________ identity
Saturday, May 11, 2013 by Thomas

Social studies
whats a 7th grade social studies word that begins with Y?
Thursday, May 9, 2013 by Alexia

4th grade english
i need help diagramming subjects,predicates,adjectives adn adverbs
Wednesday, May 8, 2013 by jordyn

grade 12
describe the life style disease/ behaviour and explain 5 factors that contribute to cancer of the gullet.
Wednesday, May 8, 2013 by maponya tshegofatso

stats
It was thought that students who dressed more neatly received better grades. To test this idea, a researcher rated each student on neatness of dress and obtained their grades on a standard school achievement test. The data are presented below. Higher scores indicate higher ...
Wednesday, May 8, 2013 by Anonymous

Math
You estimate there is an 80% chance you will get an A on your math final, and a 75% chance you will get an A for your semester grade. What is the probability that both will happen?
Tuesday, May 7, 2013 by ValeeRo

Technology Skills class???? Grade 9???
So I got accept to this Catholic private high school. So we are required to take "Technology Skills". What am I going to learn in this class??????
Tuesday, May 7, 2013 by Laruen

12th grade goverment
who could vote in elections for colonial legislatures
Tuesday, May 7, 2013 by lindsey

5th grade Language Arts
I was given an assignment to add suffixes ( -ible, -ive, and -ion) to certain root words. I can't seem to find any words for post using the above suffixes. I've tried searching dictionary and roots with post. Are there any words that can be made without changing the ...
Monday, May 6, 2013 by Alex

4th grade math
Bryan is putting fencing around his new rectangular vegetable garden. He uses 140ft of fencing material. How wide is the garden? Ther is a rectangular diagram that shows the bottom number is 40ft
Monday, May 6, 2013 by Charisse

7th Grade Math
What is the measure of an exterior angle of a regular polygon in which the sum of interior angle measures is 5400 degrees? A. 11.25 degrees B. 30 degrees C. 32 degrees D. 168.75 degrees
Sunday, May 5, 2013 by Hilda

6th grade math
How do you do square route i know a little like square route of 9 is 3 but i need more practice with square routes do you know any websites that can help.
Thursday, May 2, 2013 by Annomynus

5th grade Math
How do you add fractions with different denominators? Thanks if you help :)
Wednesday, May 1, 2013 by Kim

6th grade grammar please help
I need a good grade in grammar so please check my answers! Identify the object of the preposition in each of the following sentences. 1. Ashley and her father arrived home from work. a. and b . father c. from d. work 2. Ashley’s bedroom was across the hall. a. bedroom b. ...
Tuesday, April 30, 2013 by Jade

4th grade math
Thank you every much. Have a great night.
Tuesday, April 30, 2013 by marsha

4th grade math
So far John has run 1/4 of the way to school and walked 3/8 of the way. what fraction of the distance to school does John have left.
Tuesday, April 30, 2013 by marsha

3rd grade math
draw a box that has 3 valumes of 12 cubic units in 3 different ways
Tuesday, April 30, 2013 by nikki

7th Grade Math
If a diameter of a circle (which is 18 inches) is tripled, can the expression 9 (254.34 in square) be used to find the new circle? I know the answer is yes but I can't figure out how you work it! I come with 9(1,107.36 in square) but apparently that is not correct.... ...
Tuesday, April 30, 2013 by Daniel

4 grade math
gina ate 1/6 of an apple pie. Greg ate 1/2 of the same apple pie. how much of the apple pie was left
Tuesday, April 30, 2013 by marsha

grade 12 chemistry
explain the concept of a “stock solution” and standard solutions as if you were explaining it to a friend who is not studying chemistry.
Tuesday, April 30, 2013 by michael

5 th grade math
pilar has 4 marbles in a bag .they are green,red,blue,and yellow.she chooses a marble without looking,replaces it,and then chooses another marble.if she wants to get a green marble exactly 1 time out out of the 2 draws,how many favorable outcomes are possible?
Sunday, April 28, 2013 by Pilar

math
jim has grades of 84, 65, 76 on three tests. what grade must he obtain on the next test to have an average of exactly 80% for all four tests?
Saturday, April 27, 2013 by Carolyn

science and english only for ms sue
what the steps to the water cycle and what is the writing process and what the steps for 7th grade and please help me as soon as possible please ms. sue...
Wednesday, April 24, 2013 by lola

statistikc
We want a confidence interval for the mean IQ of all the 7th grade girls in that school district. We do not know the population standard deviation so we use the confidence interval that uses the t. In order to use the t-interval we need to assume that the variable IQ has a ...
Wednesday, April 24, 2013 by moneta

10 grade algebra
In the following system of equations, what does x equal? -10x - 2y = 56 6x - 2y = -40 x = 6 or x = -6 or x = 2 or x = -2
Wednesday, April 24, 2013 by gage

10 grade algebra
15. In the following system of equations, what does x equal? -10x + 4y = -64 -10x - 8y = -112
Wednesday, April 24, 2013 by gage

6th grade Math
I need help on the problem below. The instructions say to "factor the expression" and the expression is: -.2x^2 + 80x -6000. Thanks
Tuesday, April 23, 2013 by Brandi

5th grade math (word problems)
Problem: A receipe for 4 dozen cookies requires 1 1/2 cups of flour. How much flour is needed for 1 dozen? work: 4 divided by 1 1/2 = 4/1 x 3/2 = 4/1 x 2/3 = 8/3 cups of flour Can you explain why i don't need to change 4 dozen to 48 and then divide by 1 1/2?
Tuesday, April 23, 2013 by Alex

Psychology
Dr. Allen is trying to determine the best method by which to draw a comparison between the amount of time his students spend in the library to the grade point average of his students across the spectrum. Which research design should Dr. Allen follow, and why? Answer ...
Tuesday, April 23, 2013 by J.J

Algebra 2
Suppose you are researching the eating habits of people your age. What sampling method could you use to find the percent of students in your grade who eat five servings of fruit and vegetables each day? What is an example of a survey question that does not have bias?
Tuesday, April 23, 2013 by Amy

Science
How do I calculate between the race of two automobiles in kilometer speed this is a 8th grade science question
Monday, April 22, 2013 by Alexsi

english
what are the different kinds of nouns for 7th grade and what do they mean? ms. sue if you can may you help me????
Monday, April 22, 2013 by lola

5th grade math (word problems)
Mrs. Jones bakes pies. She always cuts each pie into 8 slices. Ther are 13 slices left on the counter. How many pies are on the counter? (write as mixed number). work: 13/8 = 1 5/8 pies. Is this correct?
Sunday, April 21, 2013 by Alex

8th grade science
the question is: "The absolute magnitude of a star is -12.. How would you describe its brightness?"
Saturday, April 20, 2013 by Ke

Grade 12 Calculus
Evaluate each of the following. Show all your calculations.  f" (0) if f(x) = 14x^2 + 3x − 6
Friday, April 19, 2013 by PLEASE HELP ME!

Grade 12 Calculus
Evaluate each of the following. Show all your calculations.  f" (1/3) if f(x) = −2x^5 + 2x − 6
Friday, April 19, 2013 by PLEASE HELP ME!

5th grade math
One patern called for 2/3 of a yard of lace, and another pattern called for 5/9 of a yard of lace. In simplest form, how much more lace did the first pattern call for than the second?
Friday, April 19, 2013 by Anonymous

Math Help?! 7th grade.
1. Determine which ordered pair is a solution of y = x*2–2. (5, 21), (–5, 24), (–1, –1), (–2, 6) 2. Without graphing, tell whether the line containing (6, –3) and (0, –8) is horizontal, vertical, or neither.
Friday, April 19, 2013 by Katerina

Grade 12 Calculus
Determine the absolute extrema of each function on the given interval. Illustrate your results by sketching the graph of each function. f(x) = (x − 1)^2 , 0 ≤ x ≤ 2
Thursday, April 18, 2013 by i am dying helppp

Grade 12 Calculus
Determine the absolute extrema of each function on the given interval. Illustrate your results by sketching the graph of each function. a) f(x) = x^2 − 4x + 3 , 0 ≤ x ≤ 3 b) f(x) = (x − 1)^2&#...
Wednesday, April 17, 2013 by i am dying helppp

5th grade reading
Can someone tell me what is the difference between an idiom and a hyperbole?Thanks if you help!:)<3
Wednesday, April 17, 2013 by Kim

7th grade math
How many times larger is a cube than a pyramid with the same base?
Wednesday, April 17, 2013 by Ryan

7th grade math
How many times larger is a cube than a pyramid with the same base?
Wednesday, April 17, 2013 by Ryan

4th grade math
brian cut an extra large round pizza into 12 pieces. 7 of the pieces were eaten. what angle measure of pizza is left?
Tuesday, April 16, 2013 by Jordyn

4th grade math
a circle is divided into 18 equal parts. how many degrees is the angle for each part? how many degrees is the angle for 5 parts?
Tuesday, April 16, 2013 by Anonymous

Math
Umm Im in 5th grade and I do not under stand this at all because I don't know what the brakets are and how do you you use them heres the question 108 + 3[15 - (3 + 9)]=?
Tuesday, April 16, 2013 by Ansley

4th grade Math
What fraction could be used to express 2 parts that equal 15/17?
Tuesday, April 16, 2013 by marsha

Grade 12 Calculus
Determine the absolute extrema of each function on the given interval. Illustrate your results by sketching the graph of each function. a) f(x) = x^2 − 4x + 3 , 0 ≤ x ≤ 3 b) f(x) = (x − 1)^2&#...
Tuesday, April 16, 2013 by samantha

Grade 12 Calculus
State the absolute maximum value and the absolute minimum value of each function, if the function is defined on the interval shown. {I CANNOT POST THE GRAPH SO CAN SOMEONE EMAll ME AT miss.a.parker at hot mail(. com) SO I CAN EMAIL IT TO THEM SO YOU CAN HELP ME? I WOULD LOVE ...
Monday, April 15, 2013 by Alexandra

Grade 12 Calculus
Evaluate each of the following. Show all your calculations. a) f'(3) if f(x)  = x^4 − 3x b) f' (−2) if f(x) = 2x^3 + 4x^2 − 5x + 8 c) f" (&#...
Monday, April 15, 2013 by mandy

Grade 12 Calculus
Determine the maximum and minimum of each function on the given interval. a)  = 2x^3 − 9x^2 ,−2 ≤ x ≤ 4 b)  = 12x − x^3 ,  x∈ [−3,5]
Monday, April 15, 2013 by sam

Grade 12 Calculus
Determine the velocity and acceleration as functions of time, t, for s(t) = 45t − 5t^2, where s(t) represents the distance as a function of time. (Hint: velocity and acceleration correspond to the first and second derivatives of the distance)
Monday, April 15, 2013 by alex

Grade 12 Calculus
Determine the absolute extrema of each function on the given interval. Illustrate your results by sketching the graph of each function. a) f(x) = x^2 − 4x + 3 , 0 ≤ x ≤ 3 b) f(x) = (x − 1)^2&#...
Monday, April 15, 2013 by james

Grade 12 Calculus
Determine the absolute extrema of each function on the given interval. Illustrate your results by sketching the graph of each function. a)  =  − 4 + 3 , 0 ≤  ≤ 3 b)  =  − 1 , 0 ≤ &#...
Monday, April 15, 2013 by jam

science
______________ can prevent some bacterial cells? 7th grade science please help meeeee ms sue help me please thanks
Monday, April 15, 2013 by lola

science
______________ can prevent some bacterial cells? 7th grade science please help me.
Monday, April 15, 2013 by lola

5th grade math
I dont get it! /is 20 times 5/6 greater than or less than 20
Monday, April 15, 2013 by Sky

math
on the test had 50 items gertrude got 34 out of the first 40 correct. if she received a grade of 80% on the test how many of the last 10 did she have correct
Monday, April 15, 2013 by emanuel

physics grade 12.
A spring is extended by 4mm when a load of 2.N was applied. a)What is its spring constant? b)How much would it extend if a losd of 150g was suspended from it?
Sunday, April 14, 2013 by Tangeni.

statstics
construct a 90 confidence interval for the population mean μ. assume the population has a normal distribution. A sample if 15 randomly selected math majors has a grade point average of 2.86 with a standard deviation od 0.78. Round to the nearest ...
Sunday, April 14, 2013 by Anonymous

social studies 8th grade
Can you please help me find an accurate map of The Treaty of Fontainebleau 1762? I am trying to complete a project and want to make sure it is accurate
Saturday, April 13, 2013 by Reed

8th Grade Math
I need help on the following please? A group of clowns performs in a ring with an area of about 2,123 square feet. What is the circumference of the ring? Choose the closest answer. 156 ft. 52 ft. 163 ft. 82 ft. Thank You. Please explain the answer
Friday, April 12, 2013 by Christopher

Math
Jeremy got scores of 93,82,91, and 88 on his first four math test. What score must he get on the fifth test to have an average test grade of 90 for the five test ? Can someone explain step by step. Please
Thursday, April 11, 2013 by Jazmin

10th grade chemistry
How many grams of kno3 can be dissolved in 100g of h2o at 50°c
Thursday, April 11, 2013 by Kimdrick

business
what studies should i take if i pass my business studies with higher marks?...(I'm in grade 12)
Thursday, April 11, 2013 by paballo

6th grade grammar
Put brackets [ ] around the adverb in each of the following sentences. Write how if the adverbs tell how, when if the adverbs tells when, or where if the adverb tell where the action takes place. 1.Her grandmother said, “You cannot wear it now!” Please Help!
Wednesday, April 10, 2013 by Susan

7th grade science
Q: A pair of fruit flies reproduces and has 1000 offspring. All 1000 of the offspring have the alleles Gg. What is the most likely combination of alleles that each parent has, and why are other combinations not likely?
Wednesday, April 10, 2013 by dingbat

physics
Venus is a grade 12 learner and she claims that she can shoot a stone 50m vertically high by using a catapult.She wants to know the relationship between the height reached by the stone and the initial velocity of it.
Wednesday, April 10, 2013 by Fifi

math-7th grade algebra 1
Please show the steps and explain how to do this as well. 3√8 · 2√5
Wednesday, April 10, 2013 by Nina

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