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
eimsori [14]
3 years ago
12

What is the sum of the arithmetic sequence 6, 14, 22, if there are 26 terms

Mathematics
1 answer:
Arisa [49]3 years ago
3 0
Sum of nth term of arithmetic sequence is given by Sn = n/2[2a + (n - 1)d]
Here, a = 6, n = 26 and d = 14 - 6 = 8
S26 = 26/2[2(6) + (26 - 1)8] = 13[12 + 25(8)] = 2,756
You might be interested in
A group of 2 adults and 4 children spent $38 on tickets to a museum. A group of 3 adults and 3 children spent $40.50 on tickets
Paraphin [41]

Answer:

Divide the 1st equation by 2

a + 2c = 19

Divide the 2nd equation by 3

a + c = 13.5

Subtract the 1st equation and the 2nd equation

c = 5.5

Substituting back into the 2nd equation will give:

a + 5.5 = 13.5

a = 8

Step-by-step explanation:

8 0
3 years ago
I need help with pythagoras’ theorem
fomenos

Answer:

Pythagoras’ theorem  is a way to find a side or hypothesis when you have 2 sides.  

The formula is:  a^2 + b^2 = c^2

a and b are sides

c is the hypothesis

<u>Ex:  A triangle has a leg that is 5 inches and a leg that is 7 inches.  Find the hypothesis using Pythagoras' theorem.  </u>

A leg is another way of saying a side.

5^2 + 7^2 = c^2

25 + 49 = x^2

sqrt(74) = sqrt(x^2)

sqrt(74) inches = hypothesis

<u>Ex:  A triangle has a leg that is 9 feet and a hypothesis that is 25 feet.  Find the other leg using Pythagoras' theorem. </u>

9^2 + b^2 = 25^2

81 + b^2 - 81 = 625 - 81

sqrt(b^2) = sqrt(544)

b = sqrt(554)

Do you understand more?

4 0
3 years ago
What is the perpendicular distance from the line y= 2x-3 to the point (8,3)
Liula [17]
Find the perpendicular line then find the intersection then find the point

perpendicular lines have slopes that are perpendicular
the slopes multiply bo -1

y=mx+b
m=slope
y=2x-3
2 is slope

2 times what=-1
what=-1/2


the equation is
y-3=-1/2(x-8) or
y=(-1/2)x+7

find intersection
at (4,5)
distance bwetweeen (8,3) and (4,5)
D=\sqrt{(8-4)^2+(3-5)^2}
D=\sqrt{(4)^2+(-2)^2}
D=\sqrt{16+4}
D=\sqrt{20}
D=2√5
distance= 2√5
7 0
3 years ago
The cost of movie tickets for a group of friends is $24. They buy 3 snacks. The cost of each snack us the same. The group spends
Bond [772]

Answer:

Answer is 6.5 dollars.

Step-by-step explanation:

Cost of movie tickets and snacks in total = 43.50

Cost of tickets = $24

Cost of Snacks = 43.50-24 =19.5$

number of snacks = 3

Cost of one snack = 19.5 ÷ 3 = 6.5$

4 0
2 years ago
The value of the correlation coefficient is always in the range<br> a. 0 to 1 b. 1 to 1 c. 1 to 0
dlinn [17]

Answer:

-1 to 1

Step-by-step explanation:

The correlation Coefficient gives the degree of relationship between two variables while also giving an hint about the type of relationship between them, (positive or negative). Correlation Coefficient could take any value bwuqwen - 1 and 1. With values closer to - 1 or 1 indicating a strong relationship between the variables, Coefficient of 0 means no relationship and a negative value means negative relationship while a positive value plies a positive relationship.

7 0
3 years ago
Other questions:
  • For a certain instant lottery game comma the odds in favor of a win instant lottery game, the odds in favor of a win are given a
    5·2 answers
  • Correct answer gets brainliest
    13·2 answers
  • Rafael counted a total of 40 white cars and yellow.There were 9 times as many white cars as yellow cars how many white cars did
    5·1 answer
  • Yeah so 5mi/h =?km/h​
    15·1 answer
  • Find the missing side of the triangle
    10·1 answer
  • In triangle ABC, the length of side AB is 19 inches and the length of side BC is 25 inches. Which of the following could be the
    11·1 answer
  • Billy’s grandfather gave him $1,200 when he turned 16 towards buying a new car that he wanted, which cost $25,000. He saved $500
    15·1 answer
  • The graph of the linear function is shown on the coordinate grid. What is the equation of this line?​
    13·1 answer
  • F(x) = 4 (2.5)^x-1<br> How do i find the 5th term of the sequence?
    9·1 answer
  • Answer this please !
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!