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
Fofino [41]
3 years ago
13

What is the 11th partial sum of the arithmetic sequence {1, 7, 13, 19, …}?

Mathematics
2 answers:
Elina [12.6K]3 years ago
6 0

Answer:

341

STEPS:

an = a1 + (n-1) d

a1 is the first number

d = is the difference between each number = 6

a11 = 1 + (11 - 1)6

a11 = 61

Sn = n (a1 + an)/2

S11 = 11 (1 + 61)/ 2

S11 = 682/2

S11 = 341 = answer

NeX [460]3 years ago
4 0

Answer:

B

Step-by-step explanation:

You might be interested in
Please Help! 20 Points! Will Give Brainliest if correct!
Debora [2.8K]

Answer:

eh+gf/fh

Step-by-step explanation:

6 0
3 years ago
Please help i need to get this done asap !
xz_007 [3.2K]

Answer:

Step-by-step explanation:

Equation of line k is   y = (-4/7)x + 1

point (-5,-10); m = -4/7

Line L is perpendicular to k so the perpendicular slope will be 7/4

Equation of line L is  (y - y1) = m(x-x1)

y+10 = (7/4) (x +5)

4y + 40 = 7x + 35

4y = 7x - 5

y = (7/4)x - (5/4)

3 0
3 years ago
(3,4) and (0, 5)<br> write a linear equation
Nina [5.8K]

Answer:

y=-1/3x+5

Step-by-step explanation:

<u>Slope-intercept form</u>

y=mx+b

m => slope

b => y-intercept

<u>Slope</u>

m=(y2-y1)/(x2-x1)=(5-4)/(0-3)=1/(-3)=-1/3

<u>Y-intercept</u>

y=-1/3x+b

5=-1/3(0)+b

5=b

<u>Final equation</u>

y=-1/3x+5

3 0
3 years ago
can you solve the question but tell me how to do it I'm trying to study but don't know how to solve it?
Vedmedyk [2.9K]

Answer:

8x+19=9x+9

Step-by-step explanation:

Simplifying

(8x + 19) = (9x + 9)

Reorder the terms:

(19 + 8x) = (9x + 9)

Remove parenthesis around (19 + 8x)

19 + 8x = (9x + 9)

Reorder the terms:

19 + 8x = (9 + 9x)

Remove parenthesis around (9 + 9x)

19 + 8x = 9 + 9x

Solving

19 + 8x = 9 + 9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9x' to each side of the equation.

19 + 8x + -9x = 9 + 9x + -9x

Combine like terms: 8x + -9x = -1x

19 + -1x = 9 + 9x + -9x

Combine like terms: 9x + -9x = 0

19 + -1x = 9 + 0

19 + -1x = 9

Add '-19' to each side of the equation.

19 + -19 + -1x = 9 + -19

Combine like terms: 19 + -19 = 0

0 + -1x = 9 + -19

-1x = 9 + -19

Combine like terms: 9 + -19 = -10

-1x = -10

Divide each side by '-1'.

x = 10

Simplifying

x = 10

6 0
2 years ago
Read 2 more answers
What is the value of x?
Lesechka [4]

Answer:

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Bob's scores on his first 4 history tests were 55, 85, 58 and 77. To the nearest whole number, what is the mean of these scores?
    15·1 answer
  • Midpoint of (-2.-2)and(2.8)
    6·2 answers
  • The hawks soccer team won 12 out of 14 games.If this rate continues,how many games will they win if they play a total of 21 game
    14·1 answer
  • The symphonic choir and the jazz choir are recording songs for an album. The album can be no more than 72
    7·1 answer
  • Which expression has a value that is less than the Base of that expresion
    11·1 answer
  • What number divided by -7 is equal to -15?
    12·1 answer
  • Which operation results in a binomial? (3y ^ 6 + 4) (9y ^ 12 - 12y ^ 6 + 16)
    7·1 answer
  • Which of the following is the slope of the line passing through each pair of points?
    14·1 answer
  • (2/7×8/4)+2/3÷(2/6×3/6+1/6)​
    12·1 answer
  • Can someone help I don’t understand
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!