5 pts Question 4 Daniah deposits $4,000 in a savings account at New York State Bank that pays 5.4% interest, compounded monthly. What is the amount of interest at the end of the year?
2. Critical Thinking: Rhoda is saving up money for a down payment on a condominium. She currently has $2571 but knows she can get a loan at a lower interest rate if she can put down $3308. If she invests the $2571 in an account that earns 4.9% annually, compounded monthly, how long will it take Rhoda to accumulate the $3308 ?
Round your answer to two decimal places, if necessary.
Given the following functions:
f(x)=3x2+3x−6g(x)=3x+6 Find each of the values below. Give exact answers.
a. (f+g)(−2)=□
b. (f−g)(3)=□ 15
c. (f⋅g)(2)=□ 120
d. (gf)(4)=□
5 pts Daniah deposits $4,000 in a savings account at New York State Bank that pays 5.4% interest, compounded monthly. What is the APY for this account to the nearest hundredth of a percent?
15 one Dicit DivisoRs
The teacher worked a total of 68 hours one school week (five days). She worked the same amount of time every day except for Thursday when she worked extra (your remainder). How many hours did she work each day? How many hours did she work Thursday?
In Exercises 8-10, graph the function. Compare the graph to the graph of the parent function. Identify the y-intercepts and asymptotes of the graph. Find the domain and range of f. 8. f(x)=5(41)x
Question 24 Suppose that $6500 is placed in an account that pays 17% interest compounded each year. Assume that no withdrawals are made from the account. Follow the instructions below. Do not do any rounding.
(a) Find the amount in the account at the end of 1 year.
\\square(b)Findtheamountintheaccountattheendof2years.$\square$
Select the correct answer.
How will the graph of logx compare to the graph of lnx ?
A. The logx graph will grow slower than the lnx graph.
B. The logx graph will grow faster than the lnx graph.
C. They are inverses of one another.
D. The graphs will be the same.
Manuel deposit \5,300intoabankaccountforsevenandahalfyears.Hecomparestwodifferentoptions.Option1willpay6.4 \%interest,compoundedsemiannually.Option2willpay6.4 \%interest,compoundedcontinuously.Manueldeposita\5.300 dólares en una cuenta bancaria durante siete años y medio. Compara dos opciones diferentes. La opción 1 pagará un interés del 6.4%, compuesto semestralmente. La opción 2 pagará un interés del 6.4%, compuesto continuamente. What is the ending balance of Option 1?
¿Cuál es el saldo final de la Opción 1? □
What is the ending balance of Option 2?
¿Cuál es el saldo final de la Opción 2? □
How much interest does Option 1 pay?
¿Cuánto interés paga la opción 1? □
How much interest does Option 2 pay?
Cost, Revenue, and Profit
You decide to begin selling bags of peanuts at the local star wars convention. Your cost for each bag of peanuts is $0.90 plus you have to pay a fee of $120 each week for the booth. Your plan is to sell each bag of peanuts for \$2.83. Note that in business, costs are any money you pay out. Revenue is any money you receive through sales. Profit is total revenues minus total costs. 1. Write a function, C(n), to represent your total costs for the week if you sell n bags of peanuts. C(n)=□ 2. Revenue is the amount of money you earn from selling bags of peanuts. Write a function, R(n), to represent the revenue from the sale of n bags of peanuts during the week.
R(n)=□ 3. Write a function, P(n), that represents the profits for selling n bags of peanuts in a given week. Recall that profit is found by subtracting costs from revenue, i.e., P(n)=R(n)−C(n).
P(n)=□ 1. What is the x-coordinate of the break even point? Write your answer as a whole number.
□ 2. Complete the following sentence to explain the meaning of your previous answer: In order not to lose money, I need to sell at least □ bags of peanuts
Submit Question
Factor the trinomial completely.
x2−10x+9 Select the correct choice below and, if necessary, fill in the answer box to complete your choice
A. x2−10x+9=□ (Type your answer in factored form:)
B. The polynomial is prime.
You go to the doctor and he gives you 15 milligrams of radioactive dye. After 12 minutes, 8 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a radiation detector without sounding the alarm. If the detector will sound the alarm if more than 2 milligrams of the dye are in your system, how long will your visit to the doctor take, assuming you were given the dye as soon as you arrived? Give your answer to the nearest minute. You will spend □ minutes at the doctor's office.
1. Katherine works no more than 20 hours each week. Babysitting earns her $8 an hour anc working as a hostess earns her $10 per hour. She needs to earn at least $180 each week to save for the car she wants. Write and solve a system of linear inequalities that displays all possible combinations of hours she could work at each job to reach her goal.
x= number of babysitting hours
y= number of hostessing hours
5−4
Standardized Test Prep Point-Slope Form
Multiple Choice
For Exercises 1-5, choose the correct letter. 1. Which equation is equivalent to y−6=−12(x+4) ?
A. y=−6x−48
C. y=−12x−42
B. y=6x−48
D. y=−12x−54 2. Which point is located on the line represented by the equation y+4=−5(x−3)?
F. (−4,−5)
G. (−5,−4)
H. (3,−4)
I. (−3,4) 3. Which equation represents the line that passes through the points (6,−3) and (−4,−9) ?
A. y+4=−53(x+9)
C. y−3=53(x+6)
B. y+4=35(x+9)
D. y+3=53(x−6) 4. Which equation represents the line shown in the graph?
F. y=−3x−2
G. y=3x+2
H. y+4=−3(x−2)
l. y+8=−3(x−2) 5. The population of a city increases by 4000 people each year. In 2025 , the population is projected to be 450,000 people. What is an equation that gives the city's population p (in thousands of
people) x years after 2010?
A. p=4x+450
C. p−15=4(x−450)
B. p−450=4(x−15)
D. p=4x+15 Short Response 6. The table shows the cost of a large cheese pizza with additional toppings on it.
a. What is an equation in point-slope form that represents the relationship between the number of toppings and the cost of the pizza?
\begin{tabular}{|c|c|}
\hline Toppings & Cost (\$) \\
\hline 2 & 10.50 \\
\hline 3 & 11.75 \\
\hline 5 & 14.25 \\
\hline
\end{tabular}
b. What is the graph of the equation?
Write the expression log5(x83y13) as a sum of logarithms with no exponents or radicals.
\begin{tabular}{|c|c|c|c|c|c|c|c|}
\hline Basic & Funcs & Tri & & & & & × \\
\hline x & B & x & x□ & & n & ↑ & ↓ \\
\hline y & ( □ & |ㅁ| & π & ∞ & DNE & ← & ⟶ \\
\hline \multicolumn{6}{|l|}{Enter an algebraic expression [more.]} & \multicolumn{2}{|c|}{Q} \\
\hline
\end{tabular}
Submit Answer 14. [0/1 Points] DETAILS
MY NOTES
LARPCALC11 8.2.019.
Evaluate the expression.
5([−200312]−[521−8−20])□□□□□⇒⇀
Need Help?
Read It
Submit Answer
Determine if the graph can represent a polynomial function. If so, assume that the end behavior and all turning points are represented in the graph.
(a) Determine the minimum degree of the polynomial.
(b) Determine whether the leading coefficient is positive or negative based on the end behavior and whether the degree of the polynomial is odd or even.
(c) Approximate the real zeros of the function, and determine if their multiplicities are even or odd.
A cylinder with a movable piston contains gas at a temperature of 24.3∘C, a volume of 2.09m3, and an absolute pressure of 13700 Pa . What will be its final temperature if the gas is compressed to 0.34m3 and the absolute pressure increases to 63350 Pa ? Answer in units of ∘C.
For f(x)=x+26 and g(x)=x3, find
a. (f∘g)(x);
b. the domain of f∘g
a. (f∘g)(x)=□
(Simplify your answer.)
b. What is the domain of f∘g ? The domain is □
(Simplify your answer. Type your answer in interval notation. Use integers or
15. Solve the equation in the real number system.
x4−2x3+6x2−18x−27=0 Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The solution set is □ ß.
(Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed. Type each answer only once.)
B. The solution set is ∅.
Problem Value: 1 point(s). Problem Score: 0\%. Attempts Remaining: 6 attempts.
(1 point) Find all zeros and vertical asymptotes of the rational function
f(x)=x2+25x2−25 If there is more than one answer, enter your answers as a comma separated list. If there is no solution, enter NONE. Do not leave a blank empty.
(a) Find the x-intercept(s). Enter x-intercepts as points, if there is more than one answer enter them separated by commas. If there is no x-intercept type in none .
□ Help on points.
(b) Find the y-intercept(s). Enter y-intercepts as points, if there is more than one answer enter them separated by commas. If there is no y-intercept type in none .
□ Help on points.
(c) Enter the equations of the vertical asymptotes (e.g., x=20,x=−7 ).
□ Help on equations.
An 80.0 kg man stands on a scale inside an elevator. What is the weight in Newtons that the scale reads when the elevator is:
a. At rest
b. Moving upward at a constant speed of 5.00m/s
c. Moving downward at a constant speed of 5.00m/s
d. Moving with an upward acceleration of 3.00m/s/s
e. Moving with a downward acceleration of 4.00m/s/s
Solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the
log4(x+11)−log4(x−4)=2 Rewrite the given equation without logarithms. Do not solve for x.
x−4x+11=16 Solve the equation. Select the correct choice below and, if necessary, fill in the answer box to cor
A. The solution set is □
(Simplify your answer. Use a comma to separate answers as needed.)
B. There are infinitely many solutions.
C. There is no solution.
Solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the original logarithmic expressions. Give the exact
ln(x−5)+ln(x+2)=ln(x−14) Rewrite the given equation without logarithms. Do not solve for x.
(x−5)(x+2)=x−14 Solve the equation to find the solution set. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The solution set is □ 3.
(Simplify your answer. Use a comma to separate answers as needed.)
B. There are infinitely many solutions.
C. There is no solution.
A computer assembly firm purchases computer parts at $245 per computer. The operating expenses are 28% on cost and rate of markup is 50% on cost.
a. What is the selling price of each computer?
□
Round to the nearest cent
b. What is the operating profit per computer?
□
Round to the nearest cent
3. In 2017 Rickard Rakell scored 26 goals after playing the first 53 games for the Anaheim Ducks. If the NHL season is 82 games long, and his scoring rate stayed consistent, how many goals can you expect Rakell to have scored by the end of the season? 4. In the year 2000 , there were approximately 500 million computers in use and it was projected that the amount of computers would increase at a rate of 10% each year. Based on this model, how many computers were in use in the year 2005? Round to the nearest millions of computers.
Solve the following inequality.
3x+7<31 Select the correct choice below and fill in the answer box to complete your choice.
A. The solution set is {x∣x⟩□ \}.
B. The solution set is {x∣x<□ \}.
C. The solution set is {x∣x≤□ \}.
D. The solution set is {x∣x≥□ \}.
Carlton holds undeveloped land for investment. His adjusted basis in the land is $114,600, and the FMV is $191,000. On November 1 . 2023, he exchanges this land for land owned by his son, who is 31 years old. The appraised value of his son's land is $184,000 with a basis of $170,000. Required:
a. Calculate Carlton's realized and recognized gain or loss from the exchange with his son and on Carlton's subsequent sale of the land to a real estate agent on July 19, 2024, for \$231,500.
b1. Calculate Carlton's realized and recognized gain or loss from the exchange with his son if Carlton does not sell the land received from his son, but his son sells the land received from Carlton on July 19, 2024.
b2. Calculate Carlton's basis for the land on November 1, 2023, and July 19, 2024 if Carlton does not sell the land received from his son, but his son sells the land received from Carlton on July 19, 2024.
c. What could Carlton do to avoid any recognition of gain associated with the first exchange prior to his sale of the land? Complete this question by entering your answers in the tabs below.
\begin{tabular}{|l|l|l|l|}
\hline ReqA & Req B1 & Req B2 & Req C \\
\hline
\end{tabular} Calculate Carlton's realized and recognized gain or loss from the exchange with his son and on Carlton's subsequent sale of the land to a real estate agent on July 19, 2024, for \$231,500.
Note: If no gain or loss is recognized, select "No gain or loss.
\begin{tabular}{|l|l|l|}
\hline \\
\hline & Amount \\
\hline
\end{tabular}
12. The table shows values for the function f(x), while the graph shows values for the function h(x). Which function has the greater slope? Explain your answer.
\begin{tabular}{|c|c|}
\hlinex & f(x) \\
\hline 1 & 7 \\
\hline 3 & 11 \\
\hline 5 & 15 \\
\hline 7 & 19 \\
\hline
\end{tabular}
Question 10 (1 point)
Find g∘f and the domain of the composite function.
f(x)=x2+4,g(x)=x
a (x−4)4
Domain of g∘f : all real numbers x
b (x−4)4
Domain of g∘f : all real numbers x
c x2+4
Domain of g∘f : all real numbers x
d (x+4)4
Domain of g∘f : all real numbers x
e (x+4)4
Domain of g∘f : all real numbers x
Question 15 (1 point)
Find (f/g)(x).
f(x)=x2−4xg(x)=7−x
a (f/g)(x)=7−xx2−4x,x=−7
b (f/g)(x)=7x2+4,x=0
c (f/g)(x)=7x−4,x=0
d (f/g)(x)=7−xx2−4x,x=7
e (f/g)(x)=7−xx2−4x,x=0
What is the basis of the new property in each of the following situations? What is the recognized gain or loss?
Required:
a. Rental house with an adjusted basis of $121,500 exchanged for a personal-use river cottage with an FMV of $155,750.
b. General Motors common stock with an adjusted basis of $26,000 exchanged for Quaker Oats common stock with an FMV of \19,000.c.Landandbuildingwithanadjustedbasisof\27,350 used as a furniture repair shop exchanged for land and a building with an FMV of $57,900 used as a car dealership.
d. An office building with an adjusted basis of $23,800 exchanged for a heavy-duty truck with an FMV of $29,950. Both properties are held for 100\% business purposes.
e. A residential rental property held for investment with an adjusted basis of $265,150 exchanged for a warehouse to be held for investment with an FMV of \$214,000.
Note: For all requirements, if no gain or loss is recognized, select "No gain or loss".
\begin{tabular}{|l|l|l|}
\hline & & Amount \\
\hline a. & Basis of the new property & \\
\hline a. & & \\
\hline b. & Basis of the new property & \\
\hline b. & & \\
\hline c. & Basis of the new property & \\
\hline c. & & \\
\hline d. & Basis of the new property & \\
\hline d. & \\
\hline e. & Basis of the new property & \\
\hline e. & & \\
\hline
\end{tabular}
11) 0.7515 moles of nitrogen gas and 0.1135 moles of methane gas are placed in a 171.6 ml container at 20.8∘C. What is the partial pressure (atm) of nitrogen gas?
A) 1.14
B) 0.473
C) 16.0
D) 106
E) 226
Use the vertex and intercepts to sketch the graph of the quadratic function. Give the equation for the parabola's axis of symmetry. Use the graph to determine the function's domain and range.
f(x)=x2+6x+3 What is the vertex?
□ (Type an ordered pair.)
Determine whether the relation in the mapping diagram is a function. Use the drop-down arrows to complete the sentences. The relation in the mapping diagram □ a function because □
Cheese production in a country is currently growing at a rate of 4% per year. The equation y=8.3(1.04)x models the cheese production in the country from 2003 to 2009. In this equation, y is the amount of cheese produced, in billions of pounds, and x represents the number of years after 2003.
a. Estimate the total cheese production in the country in 2007.
b. Assuming this equation continues to be valid in the future, use the equation to predict the total amount of cheese produced in the country in 2016.
a. The total cheese production in the country in 2007 was about 9.7 billions of pounds.
(Round to the nearest tenth as needed.)
b. The total cheese production in the country in 2016 will be about □ billions of pounds.
(Round to the nearest tenth as needed.)
Linear Functions
Use the given information to write a function. 9. A line passes through the points (5,4) and (−3,3). 10. A line passes through the points (−4,2) and (1,−3). 11. A line passes through the points (1,5) and (−5,3). Equations (Math 7/8 Review)
Solve each equation and properly check your solution, if possible. 12. −4(3x+7)−6x=−19 13. (3x)2−10=134 14. 5x−9−(x+7)=21x+19
Solve the following system of equations by the elimination method. Check the solution(s).
{7x−y=34x+y=6 Select the correct choice below and, if necessary, fill in any answer boxes within your choice. (Type an ordered pair.)
- The system has a single solution. The graphs intersect at the point □
The system is inconsistent and has no solutions.
There are infinitely many solutions and the equations are dependent.
Solve the following system of equations by the elimination method. Check the solution(s).
{2x−y=3x+9y=68 Select the correct choice below and, if necessary, fill in any answer boxes within your choice. (Type an ordered pair.)
- The system has a single solution. The graphs intersect at the point □
The system is inconsistent and has no solutions.
There are infinitely many solutions and the equations are dependent.
Use transformations of the graph of f(x)=3x to graph the given function. Be sure to graph and give the equation of the asymptote. Use the graph to determine the function's domain and range. If applicable, use a graphing utility to confirm your hand-drawn graphs.
g(x)=3x−2 Graph g(x)=3x−2 and its asymptote. Use the graphing tool to graph the function as a solid curve and the asymptote as a dashed line.
A 2.00 L container is filled with Ar(g) at 752 mmHg and 35∘C. A 0.728 g sample of C6H6 vapor is then added.
a) What is the total pressure in the container?
(b) What is the partial pressure of Ar and of C6H6 ?
11.6 Homework: Systems of Nonlinear Equations
Score: 2.75/10
Answered: 2/10
Question 4 Solve the system by the substitution method.
{xy=303x−y=9 Select the correct cheice below and, if necessary, fill in the answer box to complete your choice. Type an ordered pair and use a comma to separate answers as needed.
- The solution(s) is/are □
There is no solution.
The number of bacteria P(h) in a certain population increases according to the following function, where time h is measured in hours.
P(h)=2700e0.09h How many hours will it take for the number of bacteria to reach 3200 ?
Round your answer to the nearest tenth, and do not round any intermediate computations.
hours
Solve the system. Use any method you wish.
{y=−x(x−17.5)2+y2=81.25 What is the solution?
Select the correct choice below and, if necessary, fill in the answer box to complete your choice. Type an ordered pair and use a comma to separate answers as needed. Type an exact answer, using radicals as needed.
- The solution(s) is/are □
There are no solutions.
Question Help: □ Video
Solve the system by the method of your choice.
Hint: Let u=x21 and v=y21.
{x23−y21=−1x24+y25=24 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. Type an ordered pair and use a comma to separate answers as needed. Type an exact answer, using fractions as needed.
- The solution(s) is/are □
There is no solution.
Cesimplfy
Q(P⇒P)⇒¬(Q⇒(Q)T⇒¬(¬6⇒Q)T⇒¬(¬T)T⇒¬FT⇒I always true
(2) (7P∧φ)∨(¬P∧Q) Q/Find the converse and contrapositive "If Muna is studing for the mid-term exam then it is not hoilday time
Avery and Collin were trying to challenge each other with equations for sequences. Avery was looking at an explicit equation that Collin wrote.
t(n)=4.5n−8
a. Write the first 4 terms for the sequence.
b. What would Avery do to write the 15th term of this sequence?
c. Write a recursive equation for this sequence.
Given that I0=10−12 watts/meter 2, what is the intensity of a sound for which the decibel level of the sound measures 99 ? Round off your answer to three decimal places. Answer
How to enter your answer (opens in new window)
Keyboard Sh
□ watts/meter 2
Anwendungsbezogene Kurvendiskussion
2 Die Gesamtkosten K (in 100,00 EUR) eines Herstellers von Massenartikeln in einem Jahr kann man beschreiben durch die Funktion K mit K(x)=x3−8x2+24x+100. Dabei ist x der Output in 1000Stu¨ck/Jahr. Die Kapazitätsgrenze liegt bei 12000 Stück/Jahr. Diskutieren Sie die Funktion und interpretieren Sie die Ergebnisse.
Самостоятельная работа по теме: «Свойства степеней» ВАРИАНТ 2
o 1. Представьте в виде степени произведение:
1) x9x2;
2) 711⋅73
3) (a+b)(a+b)7
4) aa7;
5) m4m5m11
Exercice 1
(C) -35 min
07 pt On considère les polynômes P et Q définis par:
P(x)=−x3−6x2+9x+14 et Q(x)=x4−5x2+4 1. a) Vérifier que (−1) est une racine de P.
b) Factoriser alors P(x).
c) Résoudre dans R l'équation P(x)=0 En déduire l'ensemble des solutions dans IR de l'équation xx−6x−9x+14=0
b) a) Factoriser le trinôme T(x)=x2−5x+4.
c) En déduire une factorisation du polynôme Q(x).
b) Résoudre dans R l'équation Q(x)=2
d) Soit f(x)=x2+2x+5P(x)−Q(x)
a/ Déterminer le domaine de définition de f.
b/ Montrer que f(x)=−x2+x+2 et vérifier que f(x)−f(x+1)=2x
c/ En déduire la somme Sn=1+2+3+⋯+n où n est un entier naturel supérieur à 2 .
Date:
Name:
RECOGNIZING STRUCTURE TO SOLVE TWO STEP EQUATIONS
N-GEN MATH (8) 7 HOMEWORK Fluency 1. Which of the following is the solution to: 5(x+7)=50 ?
(1) x=1
(3) x=3
(2) x=8
(4) x=11 2. Which value below solves the equation: 2n−6=4 ?
(1) n=10
(3) n=8
(2) n=14
(4) n=7 3. Solve each of the following equations in two different ways: (1) by reversing the order of operations and (2) by using the distributive property to simplify the left-hand side.
(a) 5(x+3)=45 Method (1)
Method (2)
(b) 3(n−7)=27 Method (1)
Method (2)
N-Gen Matis 7, Unit 6-Linear Equations and Inequalties - Lesson 5
eMATHinstruction, RED HooK, NY 12571, 02020
TICE TEST 21
Mark for Review In the xy-plane, line ℓ passes through the point (0,0) and is parallel to the line represented by the equation y=8x+2. If line ℓ also passes through the point (3,d), what is the value of d ?
□ Answer Preview:
□ Show Keypad
9. Find the zeros of
f(x)=x(x+2)3. List them in order of least to greatest, separated by commas. If the multiplicity is more than one, only list the zero once.
Вариант 2
1) Выполните умножение одночленов
a) 43xy2⋅16y
б) 1,6a2c⋅(−2ac2)
в) −x3y4⋅1,4x6y5
2) Возведите одночлен в указанную степень
a) (−10x2y6)3
б) (−31xy)4
в) −(3a2b)3
3) Выполните действия
a) 35a⋅(2a)2
в) (−81x2y3)⋅(2x6y)4
Вариант 1
1) Выполните умножение одночленов
a) 32a⋅12ab2
б) 0,5x2y⋅(−xy)
в) −0,4x4y2⋅2,5x2y4
2) Возведите одночлен в указанную степен
а) (−21ab)3
б) −(2kx2)2
B) (−10s3b2)4
3) Выполните действия
a) 20a3⋅(5a)2
б) −0,4x5(2x3)4
в) (3x6y3)4⋅(−811xy2)
EXERCICE 2
(04 points)
Un jeune agriculteur décide de pratiquer de la culture sous serre dans son champ. A cet effet, il choisit dans son plan de représentation un repère orthonormal (O;u,v). Il place dans ce repère deux points A et B dont les affixes respectives zA et zB sont des racines du polynôme P défini par:
P(z)=2z3−3(1+i)z2+4iz+1−i, ouˋz∈C. Son objectif est de pratiquer sa culture sous serre dans l'ensemble ( E ) des points M de son plan de représentation tels que ∥MA+MB+2MO∥≤2, qui contient un point du segment [AB].
1) Vérifier que 1 et i sont des racines de P.
2) Déterminer le polynôme g tel que P(z)=(z−1)(z−i)g(z).
3) Résoudre dans C l'équation P(z)=0.
(0,5 pt)
(0,5 pt)
(0,5 pt)
4) On pose zA=1,zB=i et zC=21+21i.
a) Placer les points A,B et C d'affixes respectives zA,zB et zC dans le repère orthonormal (O;u,v) en choisissant comme unite graphique 4 cm .
( 0,75pt )
b) Démontrer que C est le milieu de [AB], puis que C appartient à l'ensemble (E)., ( 0,5pt )
c) Déterminer l'affixe zG du point G barycentre du système {(A,1);(B,1);(0,2)}, puis placer G. ( 0,5pt )
5) Déterminer puis construire l'ensemble ( E ) des points M du plan tels que
∥MA+MB+2MO∥≤2
( 0,5pt )
6) Le jeune agriculteur atteindra-t-il son objectif?
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On considère la suite (Un)n∈INU0=3,Un+1=Un+23Un+2
1) Montrer que ∀n∈INUn>2
2) Montrer que (Un) est décroissante. En déduire que (Un) est convergente
3) a-Montrer ∀n∈INUn+1−2≤41(Un−2)b - En déduire ∀n∈INUn−2≤(41)n
c - Calculer limx→+∞Un