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
Lyrx [107]
3 years ago
13

Use rounding or compatible numbers to estimate the sum

Mathematics
1 answer:
aliya0001 [1]3 years ago
8 0

Need more information please

You might be interested in
Help me to solve this question. ​
dezoksy [38]

Answer:

  n = 133

Step-by-step explanation:

The sum of n terms of an arithmetic sequence is ...

  Sn = n(2·a1 +d(n -1))/2

You want ...

  n(10 +1/2(n -1))/2 > 5000 . . . . . filling in a1=5, d=1/2

  (n^2 +19n)/4 > 5000 . . . . . . . . .simplify

  n^2 +19n -20000 > 0  . . . . . . . write in standard form

We can solve this quadratic using the quadratic formula ...

  n > (-19 +√(19^2 -4(1)(-20000)))/2 = (-19 +√80361)/2 ≈ 132.24

The least value of n such that the sum of n terms exceeds 5000 is ...

  n = 133.

4 0
3 years ago
Find the values of a b and c in the table
oksian1 [2.3K]

Answer: use google calculator It’s reliable

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find c and round. geometry
True [87]

Answer:

69.10738° or 69.1

8 0
3 years ago
Read 2 more answers
A boxer needs to lose 3 1/2 in a month to be able to compete as a flyweight. In three weeks, he lowers his weight from 55.5 kg t
tangare [24]

Answer: 1.8kg

55.5-53.8= 1.7 in the first weeks

3.5- 1.7= 1.8 for final week

6 0
3 years ago
Read 2 more answers
Which of the following graphs could be the graph of the function f(x) = x4 + x3 – x2 – x?
vitfil [10]

<u> Solution-</u>

The given function is,

f(x) = x^4+ x^3-x^2-x

     = x^3(x+1)- x(x+1)

     = (x+1)(x^3-x)

     = (x+1)x(x^2-1)

     = (x+1)x(x+1)(x-1)

     = {(x+1)}^2x(x-1)

Therefore, at x=0, -1, 1 , f(x) will be 0 . Hence, 0, -1 ,1 are the x-intercepts.

Plotting the graph on desmos, the graph will be as in the attachment.

7 0
4 years ago
Read 2 more answers
Other questions:
  • Susan drove 1500 miles to Daytona Beach for spring break.On the way back she averaged 10 miles per hour less, and the drive back
    15·1 answer
  • a bike path is 40 miles in total. mick is 70% of the way to the end. how many miles along is mick on the path?
    13·1 answer
  • How do u write three different ways to decompose 9/10 into a sum
    15·1 answer
  • Brandy jogged 2 1/2 Mile in 30 minutes 3 1/2 miles in 3/4 hour who jogged at a slower rate
    12·1 answer
  • What are the solutions of 3(x-4)(2x-3)=0​
    5·1 answer
  • Graph the following systems of equations.<br> x+y=1<br> x-y&gt;3
    9·1 answer
  • I need help ASAP plsss
    10·1 answer
  • Graph triangle JKL and its image after a reflection in the line x=2 J(1,-1), K(3,0), L(0,-4)
    8·1 answer
  • The list shows the ages of cats at a local shelter.
    15·2 answers
  • The product of two positive odd consecutive integers is 1599. What is the larger integer?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!