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
vodka [1.7K]
2 years ago
8

Application of Geometric Series

Mathematics
1 answer:
Gnoma [55]2 years ago
6 0

Answer:

  7.2224

Step-by-step explanation:

The value of the summation is given by the formula ...

  Sn = (a1)(1 -r^n)/(1 -r) . . . . . where a1 is the first of n terms, and r is the common ratio.

Your sum has first term and ratio ...

  a1 = 2(0.6) . . . . . summation term for n=1

  r = 0.6

So the sum is ...

  \displaystyle \sum_{n=1}^4{2(0.6^n)}=2(0.6)\dfrac{1-0.6^4}{1-0.6}=\dfrac{1.2}{0.4}(0.8704) = 2.6112

Then the value of the entire given expression is ...

  \displaystyle 2+2\sum_{n=1}^4{}2(0.6^n)=2+2(2.6112)=\boxed{7.2224}

_____

A calculator can help you find the value.

You might be interested in
When you are finding the slope of a line using two points, it doesn't matter which point you choose to be (x1,y1) and which poin
mariarad [96]
Typically if it is a linear function then it doesn't matter. However if it is a quadratic, cubic, and so on and so forth....(x^{2},x^{3},x^{4}) you may want to used the distance formula if you are not given any other points (with the exception of the vertex, asymptote or roots... etc).
4 0
3 years ago
We have 938 employees across the country of which 533 provide customer service and the remaining employees provide sales support
Otrada [13]

Answer:

43%

Step-by-step explanation:

533 of 938 is 56.8 rounding to 57

100-57 is 43

7 0
3 years ago
Choose the simplified form of  the fifth term of 6C4(2x)2(-y2)4.​
Katarina [22]

You didn't give us the choices.   It doesn't matter.  I think you're trying to write

\displaystyle {6 \choose 4} (2x)^2 (-y^2)^4

= \dfrac{6!}{4! 2!} ( 4x^2 y^8)

= \dfrac{6(5)}{2} ( 4x^2 y^8)

=60x^2 y^8

Answer: 60 x² y⁸

4 0
3 years ago
How you answer this??
AleksandrR [38]

Answer:

$298

Step-by-step explanation:

Profit = Income - Cost

2 tires for 35 each, so total cost is 2*35=70.  Sold for 65 each, so income is 2*65=130. Profit is 130 - 70 = $60.

3 rims for 75 each, so total cost is 3*75=225. Sold 136 each, so income is 3*136=408. Profit is 408 - 225 = $183.

5 headlight covers for 4 each, so total cost is 5*4=20. Sold for 15 each, so income is 5*15=75. Profit is 75 - 20 = $55.

Total profit = 60 + 183 + 55 = $298

5 0
3 years ago
Can someone please explain #7 to me
sergeinik [125]

Answer:

$28

Step-by-step explanation:

You subtract $44 from $100 since that is the cast of the jeans. Then get left remaining with $56. Since he wants to buy 2 shirts only you divide 56 by 2 to then equaling $28. So then each shirt is $28.

5 0
3 years ago
Other questions:
  • What is the constant variation k of the of the direct variation y=kx through 5,8
    13·1 answer
  • a board game has a spinner divided into sections of equal size. Each section is labled with a number between 1 and 5. Which numb
    15·1 answer
  • Abc congruent to pqr which of the following congruence statement is correct
    11·1 answer
  • Need help!!!!!!!!!!<br> N<br> e<br> E<br> d<br> H<br> e<br> L<br> P
    9·2 answers
  • (x + 2)4 = x4 + 8x3 +... Use the Binomial Theorem to complete the binomial expansion. Enter only the next three terms; use the ^
    12·1 answer
  • Nancy is running on a trail that is a 5.3 miles long. After 20 minutes she has ran 1.45 miles. Write an addition equation to fin
    13·1 answer
  • The graph shows the amount of money you and a friend are saving for a camping trip. You: 2 weeks 40 dollars. 5 weeks 100 dollars
    8·1 answer
  • I need help on thisss —&gt; 8x4=8(2+_)
    8·1 answer
  • Panget ng update ng brainly​
    7·1 answer
  • What are lines that cross at 90 degrees is called
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!