1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
JulsSmile [24]
3 years ago
12

A)Determine whether the sequence is divergent or convergent. If it is convergent, evaluate its limit. If it diverges to infinity

, state your answer as INF. If it diverges to negative infinity, state your answer as MINF. If it diverges without being infinity or negative infinity, state your answer as DIV.
lim n goes to infinity -6n^6+sin^2(7n)/(n^7+11)
b) Find the length of the curve defined by y=4x^(3/2)+7 at when x=1 to x=6
Mathematics
1 answer:
Colt1911 [192]3 years ago
8 0

Answer:

a) The sequence converges to 0

b) The lenght of the curve is \frac{1}{54}(217^{3/2}-37^{3/2})

Step-by-step explanation:

Consider the sequence a_n = \frac{-6n^6 + \sin^2(7n)}{n^7+11}

a) We will prove it using the sandwich lemma. Note that for all n -1\leq \sin^2(7n)\leq 1, then

\frac{-6n^6 -1}{n^7+11}\leq\frac{-6n^6 + \sin^2(7n)}{n^7+11}\leq \frac{-6n^6 + 1}{n^7+11}

Note that the expressions on the left and the right hand side have a greater degree on the denominator than the one on the numerator. Then, by takint the limit n goes to infinty on both sides, we have that

0 \leq\frac{-6n^6 + \sin^2(7n)}{n^7+11} \leq 0

So, the sequence converges to 0.

b) The function f(x) = 4x^{3/2}+7 the formula of curve lenght is given by

s = \int_a^b \sqrt[]{1+(f'(x))^2}dx

in this case, a=1, b=6

Note that f'(x) =6x^{{1/2}. Then

s=\int_1^6 \sqrt[]{1+36x}dx. Take u  = 1+36x. Then du= 36dx (i.e du/36 = dx). If x = 1, then u = 37 and if x = 6 then u = 217. So,

s=\frac{1}{36}\int_{37}^{217}\sqrt[]{u} du = \frac{2}{36\cdot 3} \left.u^{3/2}\right|_{37}^{217}=\frac{1}{54}(217^{3/2}-37^{3/2})

You might be interested in
What is t if 3/5=2/3t.
Dvinal [7]
<span><span>т = <span><span>9/10

Я сподіваюсь допомогла ^ - ^
</span></span></span><span>
</span></span>
6 0
3 years ago
A pair of shoes cost $22.99 to make, the local store sells them for $36.99. What is the percent markup? (Round to the nearest hu
ASHA 777 [7]

C: 60.9% is the right answer

Step-by-step explanation:

The markup is calculated by using the formula

Mark\ up=Selling\ price-make\ price

Given

Make Price = $22.99

Selling Price = $36.99

So the mark up will be:

Mark\ up=36.99-22.99\\=\$14

Percent mark up will be:

Mark\ up=\frac{Mark\ up}{Make\ price}*100\\=\frac{14}{22.99}*100\\=0.6089*100\\=60.89\%

Rounding off to the nearest hundredth percent

60.9%

Hence,

C: 60.9% is the right answer

Keywords: Markup, Percentage

Learn more about percentage at:

  • brainly.com/question/10435836
  • brainly.com/question/10541435

#LearnwithBrainly

5 0
3 years ago
A store sells $5000 worth of running shoes on Monday. On Tuesday, it sells $6250 worth of running shoes. What is the percent inc
professor190 [17]

Answer:6300

Step-by-step explanation:

6 0
3 years ago
Distrbute (v+3) (v2+4v-5)
seropon [69]
V3+4v2-5v+3v2+12v-15
v3+7v2+7v-15
5 0
2 years ago
Question 9<br><br> .....................................................................
egoroff_w [7]

Answer:

your answer is D (6.72)

Step-by-step explanation:

substitute x by 4

y = 2.76(4) - 4.4

y = 11.12 - 4.4

y = 6.72

Therefore the option D (6.72) is the correct answer

- hope this helps, if it does click the thanks button to let me know :) -

- have a nice day, be safe & healthy -

6 0
2 years ago
Other questions:
  • What do I do plz help
    14·2 answers
  • A 3 by 4 rectangle is inscribed in circle. What is the circumference of the circle?
    11·1 answer
  • Which is the graph of y=2/(x+1)-6
    12·2 answers
  • Collins spent $8 at lunch. He spent $24 on new shoes. His shoeswere how many more times expensive than his lunch
    8·2 answers
  • Which statement be describes the rotation ?
    6·2 answers
  • Help me please. good day
    8·1 answer
  • Riley invested $5,100 in an account paying an interest rate of 7\tfrac{3}{4}7 4 3 ​ % compounded quarterly. Ryan invested $5,100
    8·1 answer
  • Solve the system of inequalities: <br> 3x-10&lt;0<br> 2x&gt;0<br> HELPPP WILL MARK BRAINLIEST
    11·2 answers
  • Megan wants to build a bird feeder she buys 8 1/2 feet long the cost of the wooden board is 2.50$ per foot what is the cost in d
    9·1 answer
  • Using the Histogram below, how many trees are between 150 cm and 200 cm tall?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!