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
Marysya12 [62]
3 years ago
14

Show all work and reasoning

Mathematics
1 answer:
Natalija [7]3 years ago
8 0
Split up the interval [2, 5] into n equally spaced subintervals, then consider the value of f(x) at the right endpoint of each subinterval.

The length of the interval is 5-2=3, so the length of each subinterval would be \dfrac3n. This means the first rectangle's height would be taken to be x^2 when x=2+\dfrac3n, so that the height is \left(2+\dfrac3n\right)^2, and its base would have length \dfrac{3k}n. So the area under x^2 over the first subinterval is \left(2+\dfrac3n\right)^2\dfrac3n.

Continuing in this fashion, the area under x^2 over the kth subinterval is approximated by \left(2+\dfrac{3k}n\right)^2\dfrac{3k}n, and so the Riemann approximation to the definite integral is

\displaystyle\sum_{k=1}^n\left(2+\frac{3k}n\right)^2\frac{3k}n

and its value is given exactly by taking n\to\infty. So the answer is D (and the value of the integral is exactly 39).
You might be interested in
Please help it’s very cunning
gregori [183]
The answer to you question is B
7 0
3 years ago
A teacher is making multiple copies of a 1−page homework assignment. The time it takes her in seconds based on the number of cop
avanturin [10]

Answer: I'm on it give me just a minute!!

6 0
3 years ago
A flyer is spread by people
Vikki [24]

Answer:

A flyer is spread by people at a large conference. Within one hour, the first person gives a stack of - Brainly.in Find an answer to your question A flyer is spread by people at a large conference. Within one hour, the first person gives a stack of flyers to six people. there you go buuuuuudy

Step-by-step explanation:

7 0
3 years ago
The temperature has been dropping 2 1/2 degrees every hour and the current temperature is -15°f. How many hours ago was it 0°f?
beks73 [17]

Answer:

6 hours ago

Step-by-step explanation:

6 hrs x 2.5 degrees = 15 degrees

5 0
2 years ago
Can someone please help me. I will give brainliest
d1i1m1o1n [39]

Answer:

B or C hope it helps :)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • Find the length of an arc of 40° in a circle with an 8 inch radius.
    8·2 answers
  • Please help again!! ASAP
    13·1 answer
  • Zoey needs at least $30 to buy a gift. She has $12. Which inequality could Zoey use to find out how much more money (m) she need
    7·1 answer
  • Someone please help :rewrite 2.267 repeating 67 as a simplifed answer
    13·2 answers
  • What is the result when the number 12 is increased by 25%?
    13·2 answers
  • What is another way to name Plane P?
    10·1 answer
  • Raymond works in an electronics store and gets a 12 percent employee discount. The original cost of a video game system is $175.
    12·2 answers
  • Multiple Choice.
    15·1 answer
  • Martin ran 6.5 miles in one hour. At that speed, how many miles will he<br> three hours?
    10·2 answers
  • IF ONE THIRD OF THE SCHOOL STUDENTS LIKE MATHEMATICS AND 400 STUDENTS DO NOT LIKE MATHEMATICS , THEN HOW MANY STUDENTS DOES THE
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!