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
Anika [276]
3 years ago
11

How many terms of the arithmetic sequence {-4,-2, 0, ....} will give a sum of 500?

Mathematics
1 answer:
IrinaK [193]3 years ago
3 0

Answer:

a. 25

Step-by-step explanation:

Sₙ = n/2 * (2 * a₁ + (n-1) * d)

Sₙ = 500     a₁ = -4    d = 2

500 = n/2 * (-8 + (n-1) * 2) = n/2 * (-8 + 2n - 2) = n/2 * (2n - 10) = n² -5n

n² - 5n -500 = 0

(n - 25) (n + 20) = 0

n > 0

n = 25

You might be interested in
I'm stuck- lol. I'll give brainliest to the first correct answer! :D
polet [3.4K]

Answer:

Its 4:)

Step-by-step explanation:

8 0
3 years ago
-6(2x + 4) = 12 what is the answer <br>​
katrin2010 [14]
The answer to your question is -3 !!
3 0
3 years ago
Read 2 more answers
PLZ HELPP!!!!
Kisachek [45]

Answer: its A

Step-by-step explanation:i did the test

4 0
3 years ago
Chelsea and her friends are going to a movie. If popcorn is $3.99 and drinks are $1.75, what is the cost of two popcorns and thr
Iteru [2.4K]
$5.74 I think :vvvvvvvvvv
6 0
3 years ago
Read 2 more answers
Please can someone help.
Vedmedyk [2.9K]

Answer:

Step-by-step explanation:

Challenge # 1

Line has a negative slope with positive slope.

Therefore, equation will be,

y = 1.5x - 6

Parallel line to the given line will have same slope = 1.5 but with different y-intercept.

Equation of the parallel line → y = 1.5x + 6

Challenge # 2

Line has a negative y-intercept = -1 (Approx.)

Slope of the line = negative

Therefore, equation of the line will be,

y = -3.7x -1

Line parallel to the given line will have same slope but different y-intercept.

Equation of the parallel line → y = -3.7x + 1

Challenge # 3

Line with negative slope and no y-intercept.

y = -0.8x

Parallel line to the given line will have same slope and different y-intercept.

Equation of the parallel line → y = -0.8x + 1

Challenge # 4

Line in the graph has positive slope and negative y-intercept.

y = -5 + 4.2x

Line parallel to the given line will have same slope but different y-intercept.

Equation of the parallel line → y = - 7 + 4.2x

4 0
3 years ago
Other questions:
  • (4+2n^3) + (5n^3+2)
    11·2 answers
  • Write the standard equation of the circle shown.
    10·1 answer
  • Assessment timer and count Assessment items A rectangle has an area of 102 cm2. The length of the rectangle is 17 cm. What is th
    10·1 answer
  • I need the explanation and the answer of 14/40 in simplest form
    5·1 answer
  • Math:<br><br> karl runs 8.73 and linn runs 9.50 how mutch faster does karl run
    5·2 answers
  • Find f(-4) if f(x) = 3x - 6.<br><br> A 6<br> B -6<br> C 18<br> D -18
    14·2 answers
  • Please help me with this question I would really appreciate it!!!
    9·1 answer
  • The cost of renting a truck is $40. An additional $0.79 is charged for each mile, m, the truck is driven.
    7·2 answers
  • What is the length of z? (Round to the nearest tenth)
    10·1 answer
  • Rewrite the following equation into slope intercept form 3x - 4y = 20 and identify the slope and y - intercept.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!