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
Papessa [141]
3 years ago
7

Find the sum of the following ap .1) 1/15, 1/12, 1/10,....,to 11 terms​

Mathematics
1 answer:
sertanlavr [38]3 years ago
8 0

Answer:

33/20

Step-by-step explanation:

1/12 - 1/15 = 5/60 - 4/60 = 1/60

d = 1/60

a_n = a_1 + d(n - 1)

a_11 = 1/15 + (1/60)(11 - 1)

a_11 = 1/15 + 1/6

a_11 = 4/60 + 10/60

a_11 = 14/60

a_11 = 7/30

a_12 = 14/60 + 1/60

a_12 = 15/60

a_12 = 1/4

s_n = n(a_1 + a_n)/2

s_11 = 11(1/15 + 7/30)/2

s_11 = 11(2/30 + 7/30)/2

s_11 = 11(9/30)/2

s_11 = 99/60

s_11 = 33/20

You might be interested in
What expressions represents "eight more than the product of some number cubed and two"?
IRISSAK [1]
It is C. Because it says that 8+ the product of 2 and a number to the third power, what it means 2×m cubed. So it is 8+2m (cubed)
4 0
3 years ago
Read 2 more answers
What is the product of -3xy^2 and (2x^2 - 4y)
ICE Princess25 [194]

Answer:

 2 • (x2 - 2y)

Step-by-step explanation:

Step  1  :

Equation at the end of step  1  :

 2x2 -  4y

Step  2  :  See below

Step  3  :  See below

Pulling out like terms :

3.1     Pull out like factors :

Answer:  2 • (x2 - 2y)

<em><u>Hope this helps.</u></em>

6 0
2 years ago
I need help to locate the dots please
Serggg [28]
For 2 2/3 it’s the 6th line from 2

For 1 5/9 it’s the 5th line from 1

Hope this helps!
3 0
3 years ago
Read 2 more answers
Dennis has a maximum of $80 that he can spend on books. He wants to buy a combination of nonfiction books which cost $12 each an
horsena [70]

Answer:

( 2, 7 )

2 Nonfiction , 7 Fiction

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Oooooooooooooooooooooooooooooooooooooooooooo
victus00 [196]
44 O’s are shown typed by the person asking the question
7 0
2 years ago
Other questions:
  • A plant grew 1/8 inch last week and 3/8 inch this week. How many inches did the plant grow in the last two weeks
    5·2 answers
  • The leaning tower of Pisa currently "leans" at a 4 degree angle and has a vertical height of 55.86 meters. How tall was the lean
    9·1 answer
  • Why is the percent of change from 145 pounds to 132 pounds
    11·1 answer
  • What is the value of x
    15·2 answers
  • A process of inserting points between actual plotted data points or extending an actual line of data is called:
    9·1 answer
  • Solve for x write the exact answer using either base -10 or base-e logarithms
    8·1 answer
  • A teacher randomly selects one student from a group of students. 12 students are wearing a black shirt, 8 are wearing a red shir
    15·2 answers
  • Solve for X <br><br>Could you show me what steps to do that leads to the answer​
    14·2 answers
  • Solve for n.<br> n+ 1 = 4(n-8)<br> n = 1<br> n = 8<br> n = 11<br> C n = 16<br><br> Help? ;-;
    5·1 answer
  • What are the factors of 2x2 3x – 54? Select two options. 2x – 9 2x – 6 2x 6 x – 6 x 6.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!