Friday

July 31, 2015

July 31, 2015

Number of results: 112,577

**Math - PreCalc (12th Grade)**

What is the value of this expression when n approaches infinity? 4−(4/n)+(5/n)+(15/3n^2) A) 20 B) 10 C) 5 D) 4 E) 1
*March 21, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

What is the first natural number that causes the statement:(2+3)^n<=4^n+3^n to fail? A) 1 B) 2 C) 3 D) 4 E) 5
*March 19, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

Use the inverse matrix to solve this system of equations: 4x+3y=7.5 7x+9z=14 4y-z=8.3 4,3,0 7,0,9 0,4,-1
*March 21, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

Which equation represents a hyperbola whose foci lie at (2, 7) and (2, -3)?
*March 24, 2014 by Anonymous*

**Math - PreCalc (12th Grade)**

What is the slope of the tangent line passing through the point (2, 3) of the graph of this function? f(x)=x^2+2x−5 A) 1 B) 2 C) 3 D) 4 E) 6 f(2)=2^2+2(2)-5 f(2)=3 so is it c?
*March 20, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

A fair coin is tossed 3 times in a row. If X is the number of heads counted, what is the mean of the probability distribution of X? A) 1.0 B) 1.5 C) 2.0 D) 2.5 E) 3.0
*March 21, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

What is the left-hand limit of f(x)=|x−3|/x−3 as x approaches 3? A) 1 B) 2 C) 0 D) -1 E) -2
*March 19, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

What is the right-hand limit of this function at x=2? g(x)=x^2−3/x−3 A) -1 B) 0 C) 1 D) 2 E) 3
*March 19, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

How many different basketball teams of 5 players can be created from a group of 7 players?
*March 24, 2014 by Anonymous*

**Math - PreCalc (12th Grade)**

What is the first natural number that causes the statement 1 + 3 + 5 +... + (2n − 1)<=4n − 1 to fail? A) 2 B) 3 C) 4 D) 5 E) 6
*March 19, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

If Sn represents the sum of the squares of the first n natural numbers, use proof by induction to find which of the following expressions for Sn is true? A) Sn = n(n − 1)/3 B) Sn = n(2n − 1)/3 C) Sn = n(n + 1)/3 D) Sn = n(n + 1)(2n + 1)/3
*March 20, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

The function f(x) = 6x + 5 is defined over the interval [-1, 4]. If the interval is divided into n equal parts, what is the value of the right end point of the first rectangle?
*March 21, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

What value must be defined for f(4) to remove the discontinuity of this function at x=4? f(x)=(x^2−16)/(x−4) A) 0 B) 4 C) -4 D) 8 E) -8 f(4)=(4^2−16)/(4−4) f(4)=0/0 you can't divide by zero. I don't understand the question.
*March 20, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

How many 4-digit numbers are possible if the hundreds digit is 8 and if repetition of digits is allowed? A) 100 B) 1,000 C) 9,000 D) 900 E) 1,800
*March 21, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

The function f(x) = 2x + 1 is defined over the interval [2, 5]. If the interval is divided into n equal parts, what is the value of the function at the right endpoint of the kth rectangle? A) 2+3k/n B) 4+3k/n C) 4+6k/n D) 5+6k/n E) 5+3k/n
*March 21, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

What does this function show at x = 5? f(x)=x^2−25/x−5 A) removable discontinuity B) jump discontinuity C) infinite discontinuity D) continuity E) none of the above
*March 19, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

The function f(x) = x2 − 5 is defined over the interval [0, 5]. If the interval is divided into n equal parts, what is the area of the kth rectangle from the right? A) [(2+k(5/n))^2+5](5/n) B) [(k(3/n))^2−5](5/n) C) [(k(5/n))^2+5](5/n) D) [(k(3/n))^2+3](5/n) E) [(k...
*March 21, 2014 by Shawna*

**12th grade**

There are 300 students in 12th grade. What is the total population of the school?
*March 29, 2010 by Anonymous*

**Math - PreCalc (12th Grade)**

If Sn = 1 + 6 + 11 + 16 + 21 + 26...... where an = (5n − 4), what would be the mathematical expression represented by Sk + ak + 1? A) (k(5k − 3)/2)+ 5k + 1 B) (k(5k − 3)/2)+ 5k − 4 C) (k(5k − 3)/2)+ 5k + 2 D) (k(5k − 3)/2)+ 5k − 3 E) (...
*March 20, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

Which rectangular equation corresponds to these parametric equations? x = 0.2sec t and y = -0.25tan t A) 25x^2 − 16y^2 = 1 B) 25x^2 + 16y^2 = 1 C) x^2 − 16y^2 = 25 D) 25y^2 − 16x^2 = 1 E) 4x^2 − 16x^2 = 1
*March 24, 2014 by Anonymous*

**Math - PreCalc (12th Grade)**

If the length of the minor axis of an ellipse is 6 units and the length of the major axis is 10 units, how far from the center are the foci located? A) 4 units B) 2 units C) √4 units D) √8 units E) 5 units
*March 19, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

If the distance covered by an object in time t is given by s(t) = 2t2 + 3t, where s(t) is in meters and t is in seconds, what is the average velocity over the interval from 2 seconds to 4 seconds? A) 15 meters/second B) 14 meters/second C) 13 meters/second D) 12 meters/second ...
*March 21, 2014 by Shawna*

**Math - PreCalc (12th Grade)**

Which statement about a uniform probability distribution defined on a given interval is true? A) The mean is always 0. B) The mean is always 1. C) The standard deviation is always 1. D) The mean is the midpoint of the interval. E) The standard deviation is equal to the width ...
*March 21, 2014 by Shawna*

**12th grade maths**

how to present math in different angles which represents depth of subject,easiness,empowerment,basics,logic,analyze,view of subject from back,view from front.Give multiple e.g.s .(just 11th & 12th)
*August 20, 2010 by R_t*

**12th grade maths**

how to present math in different angles which represents depth of subject,easiness,empowerment,basics,logic,analyze,view of subject from back,view from front.Give multiple e.g.s .(just 11th & 12th)
*August 20, 2010 by R_t*

**math**

Riding on a school bus are 20 students in 9th grade, 10 in 10th grade, 9 in 11th grade, and 7 in 12th grade. Approximately what percentage of the students on the bus are in 9th grade?
*October 6, 2014 by jenna*

**11th grade**

The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?
*November 6, 2009 by stefanie coplin*

**english**

- 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 Grade - 7th Grade - ...
*January 8, 2010 by peter*

**Math - PreCalc (12th Grade)**

Which combination of limit properties is required to evaluate this limit? lim x->((24/x)-2x+2)^3 A) sum, difference, product, root B) sum, difference, product, power C) sum, difference, quotient, power D) sum, difference, quotient, root E) A limit does not exist.
*March 20, 2014 by Shawna*

**12th Grade Math**

How do you graph f(x)= ((x+5)(x-4)^(2))/((x-2)(x^(4))
*October 27, 2009 by plato*

**12th grade - Math**

P(x) = 3x^3 - 7x^2 - 4x + 2 P(1 + √ 3) =
*September 12, 2010 by Jesse*

**12th grade math help!!!!**

Who invented the lightbulb? Thanks
*March 28, 2008 by McKenna*

**12th grade - Math**

1.) Explain why |8-15i| = 17
*September 1, 2010 by Eliza*

**Math - PreCalc (12th Grade)**

Which statement is true for any linear system of two equations in two variables? A) The system is independent if the slopes of the two lines are equal. B) The system is inconsistent if the y-intercepts of the two lines are equal. C) The system is independent if the graphs of ...
*March 20, 2014 by Shawna*

**12th grade math an**

how do u solve this in analysis and funtion 7(b-6)=-12+b
*November 15, 2009 by tierra*

**12th grade**

can you please help me to do my math homework on geometry 7.5
*April 5, 2010 by lachauncia*

**12th grade math**

State the asymptote of the function g(x)=6^x-9
*December 1, 2010 by Chrisy Morris*

**12th Grade Vocabulary Antonyms Practice**

Does anyone know of a good place that I can practice 12th grade vocabulary antonyms?
*February 1, 2014 by Angela*

**12th grade - Math**

Solve by Factoring: 1.) x²- x + 12 = 0 2.) 4x³ + 21x² - 18x = 0 3.) x³- x² - x + 1
*September 1, 2010 by Eliza*

**12th grade math**

Identify the domain and range: 1.) y = x^2 / 4x^2 - 1 2.) y = -3 / (x+2)^2 + 1 3.) y = ³√-x^2
*September 13, 2010 by Nicki*

**12th grade - Math**

Identify the system as consistent, inconsistent or dependent. Explain your choice. 1.) 3x - 2y = 12 6x - 4y = 24 2.) x= -5 y= 4
*August 26, 2010 by Liz*

**math 12th grade**

1. convert polar equation to rectangular coordinates: r^2=4sin2theta 2. find the coefficient of x^5 in the expansion (x+2)(x+1)^8
*January 18, 2012 by Rass*

**12th grade math**

What is the distance between the origin and the point (5, 12)? If necessary, round your answer to two decimal places.
*March 10, 2010 by shelby*

**12th grade**

1/7+3/5
*October 16, 2009 by Anonymous*

**12th grade**

3X+3=3
*July 5, 2010 by Lana*

**12th grade math!!!**

what is the prime power factorizatopn of 554 706 758 514 844 830 788 677
*September 17, 2008 by chris*

**Math (trigonometry)**

MONDAY December 3, 2012 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 ...
*December 3, 2012 by Sammy*

**12th grade**

How far a
*April 20, 2009 by Anonymous*

**12th grade**

what are substitutes
*June 9, 2009 by elizabeth*

**12th grade**

solve: 5/2x+1/4x=9/4+x
*November 28, 2009 by Cassie*

**12th grade**

RS=7a,ST=12a,RS=28
*August 20, 2010 by Julian Lopez*

**12th grade**

2x^2+6x-16 and 14x^2-3x-2
*September 6, 2010 by factorising expressions*

**12th grade**

How many moles are in 8.8*10 to the 34
*December 7, 2010 by yuo*

**senior courses**

this is a reply to Ms.Sue's question yesterday. my college and career goals are to do with Foods. cooking, culinary arts .. but i don't think that i can chose my next year (12th grade) courses according to that, can i? those are my plans for college right now i'm having ...
*April 29, 2009 by y912f*

**12th grade**

Simplify completely: -3(4-9)+6-2(-8+5)
*March 7, 2010 by mary*

**12th grade**

factor completely x^4-16=0
*March 7, 2010 by shawn*

**12th grade**

cos x sin x
*March 31, 2010 by Joseph*

**12th grade**

how do I differentiate y=2sin8(x+(pi/4))-12?
*April 29, 2010 by Belle*

**12th grade**

make the subject (p) p+3=(pq+r)/2
*September 6, 2010 by rearranging formulae*

**12th grade**

solve (24e)^1/3 / (3e)^1/3
*September 13, 2010 by gav*

**12th grade**

deductive reasoning
*October 6, 2010 by kerri*

**12th grade**

the constitution and the changes
*October 18, 2010 by Anonymous*

**12th grade**

if cos Q=5/9, find 5/9
*November 8, 2010 by chris*

**12th grade**

what is genetic engineering?
*November 17, 2010 by marcia*

**10th grade math**

1.548937075 x 10 to the 12th. round the number to 3 significat figures. I thought I would respost this because the other one was getting confusing
*August 19, 2008 by Rebekah*

**12th grade - Math**

Explain. 1.) To solve x(x-5)=0 either factor may be equal to zero. 2.) | 8-15i | = 17 3.) The solution for x^2 = -2 cannot be found graphically. [any help or explanation is greatly appreciated]
*August 26, 2010 by Liz*

**12th grade Math?**

How would you factor 3x^3-4x^2+4x-1? P.S. Factor theorem does not work here.
*October 12, 2008 by BioBabe*

**12th grade - Math**

Justify your answer: 1.) Which line is steeper? y= 4/3x - 5 or y= 6/5x - 1 2.) Does the slope of line AB exist? A (-2,7) B (-2,-1)
*September 9, 2010 by Mark*

**Math 12th grade**

Find the sum of each infinite series, or state that the sum doesn'nt exist 1/7+5/14+25/28+
*December 16, 2012 by Todd*

**12th grade**

How do I find the height of a parallelogram?
*September 25, 2008 by Anonymous*

**12th grade**

the brochure is not very informing
*June 11, 2009 by Anonymous*

**12th grade**

the brochure is not very informative
*June 11, 2009 by Anonymous*

**12th grade**

how do i do linear programming in algebra 2?
*November 22, 2009 by john*

**12th grade**

what is the analogie for abject:miserable
*May 24, 2010 by Kiara*

**12th grade**

At 1p.m. I will be feeding the dogs. At the house.
*September 28, 2010 by Renee*

**12th grade**

How many moles of atom are in 47 atoms Ba?
*November 8, 2010 by stef*

**12th grade**

The trem hierarchy refers to
*November 16, 2010 by Sam*

**statistics**

Measures of Central Tendency,variability, and postion 12th Grade math class. organize the data 78,67,95,85,84,86,82,75,85,94,91,57,78,77,88,90,91,86,84,82,75,58,73,75. Then do 4 columns of Grades,Deviations,Squares,and Z-Scores
*November 30, 2011 by Lisa*

**12th grade**

how do you solve limits that have infinities!?
*September 2, 2008 by Megan*

**12th grade**

What ended the era of dual federalism?
*September 21, 2008 by Casey*

**12th grade**

Indication is to sign as cloud is to weather?
*October 13, 2008 by Jen*

**12th grade**

the product of 7over16, 4over3, and 1over2 is
*February 11, 2009 by tina Johnson*

**12th grade**

please help how to paraprhase the paradise lost
*February 20, 2009 by migdalia*

**12th grade**

maps of top 15 countries that trade with the U.s.
*September 24, 2009 by Anonymous*

**12th grade**

could some help me with my german homework, please?
*September 24, 2009 by uopi*

**12th grade**

the equation y= 6 sin(3x-1)pi+4 has a fundamental period at
*November 15, 2009 by Anonymous*

**12th grade**

which of the following proofread's mark is incorrect
*November 21, 2009 by Anonymous*

**12th grade**

What is answer to 2/3 to second power and how do I calculate
*January 12, 2010 by Dylan*

**12th grade**

solve: sec(1/4)X+"Square Root of 2"=0
*April 19, 2010 by Jamie*

**12th grade**

what tool hellps you create a database
*June 1, 2010 by Joan*

**12th grade**

How did the Revolution affect religion in America?
*June 4, 2010 by corey*

**12th Grade Maths**

simplify (e is positive) (24e)^1/3 / (3e)^1/3
*September 13, 2010 by dave*

**12th Grade Maths**

simplify (e is positive) (24e)^1/3 / (3e)^1/3
*September 14, 2010 by daz*

**12th grade**

how to calculate the mole fraction to hexan. Thanks
*September 27, 2010 by Jan*

**12th grade economics**

what does the process of specialization do for the economy?
*October 2, 2010 by alexis*

**12th grade**

small group that study bills
*November 5, 2010 by samantha *

**12th grade**

C6H8O7 + 3NaOH --> NaC6H5O7 + 3H2O
*December 14, 2010 by ronald*

**12th grade**

C6H8O7 + 3NaOH --> NaC6H5O7 + 3H2O
*December 14, 2010 by ronald*

**12th Grade Calculus **

how will you multiply y = ae^3x + be^-2x with dy/dx = 3ae^3x - 2be^-2x
*January 22, 2012 by Akash*

**12th grade chemistry **

What is the structure for ethyl ethanamide? (Ie. c-c-N-c-c) ??? Thanks
*September 24, 2013 by Michaela*