# Math - PreCalc (12th Grade)

140,027 results

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

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

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

Which equation represents a hyperbola whose foci lie at (2, 7) and (2, -3)?

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?

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

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

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

How many different basketball teams of 5 players can be created from a group of 7 players?

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

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

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?

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.

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

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

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

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...

There are 300 students in 12th grade. What is the total population of the school?

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) (...

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

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

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 ...

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 ...

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)

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)

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?

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?

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 - ...

How do you graph f(x)= ((x+5)(x-4)^(2))/((x-2)(x^(4))

P(x) = 3x^3 - 7x^2 - 4x + 2 P(1 + √ 3) =

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.

Who invented the lightbulb? Thanks

1.) Explain why |8-15i| = 17

Does anyone know of a good place that I can practice 12th grade vocabulary antonyms?

how do u solve this in analysis and funtion 7(b-6)=-12+b

State the asymptote of the function g(x)=6^x-9

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 ...

Identify the domain and range: 1.) y = x^2 / 4x^2 - 1 2.) y = -3 / (x+2)^2 + 1 3.) y = ³√-x^2

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

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

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

1/7+3/5

3X+3=3

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

How far a

what are substitutes

solve: 5/2x+1/4x=9/4+x

RS=7a,ST=12a,RS=28

2x^2+6x-16 and 14x^2-3x-2

How many moles are in 8.8*10 to the 34

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 ...

what is the prime power factorizatopn of 554 706 758 514 844 830 788 677

Math
As most of you are teahers,I would like to know what topics 12th grade admission exams take into account. Thanks in advance.

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 ...

Simplify completely: -3(4-9)+6-2(-8+5)

factor completely x^4-16=0

cos x sin x

how do I differentiate y=2sin8(x+(pi/4))-12?

make the subject (p) p+3=(pq+r)/2

solve (24e)^1/3 / (3e)^1/3

deductive reasoning

the constitution and the changes

if cos Q=5/9, find 5/9

what is genetic engineering?

How do I find the height of a parallelogram?

the brochure is not very informing

the brochure is not very informative

how do i do linear programming in algebra 2?

what is the analogie for abject:miserable

At 1p.m. I will be feeding the dogs. At the house.

How many moles of atom are in 47 atoms Ba?

The trem hierarchy refers to

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

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]

How would you factor 3x^3-4x^2+4x-1? P.S. Factor theorem does not work here.

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)

Find the sum of each infinite series, or state that the sum doesn'nt exist 1/7+5/14+25/28+

how do you solve limits that have infinities!?

What ended the era of dual federalism?

Indication is to sign as cloud is to weather?

the product of 7over16, 4over3, and 1over2 is

maps of top 15 countries that trade with the U.s.

could some help me with my german homework, please?

the equation y= 6 sin(3x-1)pi+4 has a fundamental period at

which of the following proofread's mark is incorrect

What is answer to 2/3 to second power and how do I calculate

solve: sec(1/4)X+"Square Root of 2"=0

what tool hellps you create a database

How did the Revolution affect religion in America?

simplify (e is positive) (24e)^1/3 / (3e)^1/3

simplify (e is positive) (24e)^1/3 / (3e)^1/3

how to calculate the mole fraction to hexan. Thanks

what does the process of specialization do for the economy?

small group that study bills

C6H8O7 + 3NaOH --> NaC6H5O7 + 3H2O

C6H8O7 + 3NaOH --> NaC6H5O7 + 3H2O

how will you multiply y = ae^3x + be^-2x with dy/dx = 3ae^3x - 2be^-2x

What is the structure for ethyl ethanamide? (Ie. c-c-N-c-c) ??? Thanks

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