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
Anna007 [38]
3 years ago
5

Find the sum: 2 + 9 + 16 + ... + 37

Mathematics
1 answer:
iris [78.8K]3 years ago
7 0

Step-by-step explanation:

Sum of arithmetic terms = n/2 × [2a + (n - 1)×d], where 'a' is the first term, 'd' is the common difference between two numbers, and 'n' is the number of terms.

this is the same as n/2 × (a1 + an), because

an = a1 + (n-1)×d

so, for the series above :

a or a1 = 2

d = 7, as every new term is the previous term plus 7.

for n

37 = a1 + (n-1)×d = 2 + (n-1)×7

and now solve for n

35 = 7n - 7

42 = 7n

n = 6

so, the sum of all terms is

6/2 × (2+37) = 3×39 = 117

You might be interested in
The choices are
Artemon [7]

Answer:

The answer is Perpendicular

7 0
3 years ago
of the students in your class, 12% are left-handed. What fraction of the students are left-handed? Are there more right-handed o
Ksivusya [100]

Answer:

<em><u>The answer here is 3/25, more left handed students.</u></em>

Step-by-step explanation:

12/100 are left handed, which reduces to 3/25. This means that there are only 3 left handed kids for every 22 right handed kids, showing that there are more right handed students than left handed.

7 0
3 years ago
I suck at math can someone help please??
Zielflug [23.3K]
6/7 × 4 would be the correct answer. This is because 6/7 × 4= 3 3/7 which is equal to 4/7 × 6= 3 3/7. No other expression would equal 4/7 × 6
7 0
3 years ago
Is this figure an example of a line
ivann1987 [24]

Answer:

No , It has two endpoints.

Explanation: A line segment has two end points with a definite length.

A straight line has neither starting nor end point and is of infinite length.

5 0
3 years ago
Read 2 more answers
Which ordered pair is in the solution set of the system of linear inequalities? y &gt; x – 1 y &lt; x – 1
suter [353]
There are no possible answers to this. 
3 0
3 years ago
Read 2 more answers
Other questions:
  • a store received 500 containers of milk to be sold by Febuary 1. Each container the store sold $0.83 and sold for $1.67. The sto
    14·1 answer
  • One hundred people were asked, "do you favor stronger laws on gun control?" of the 33 that answered "yes" to the question, 14 we
    8·1 answer
  • If x+y=2 and x-y=1 then:
    9·1 answer
  • Please tell explain what the right answer is
    10·2 answers
  • 13. Find a cubic function with the given zeros. 7, -3, 2
    7·1 answer
  • Show that if the point with coordinates (x,y) is equidistant from the point (2,0) and the line y=−4, then y=1/8(x-2)²-2.
    7·1 answer
  • Can u help me plz ?
    13·1 answer
  • I am stumped on Question 2
    6·2 answers
  • I need the anwers to both question A and B
    15·1 answer
  • 2. Samantha's mom has a koi fish pond at the corner of her backyard. Samantha wanted to install a brick walkwa on two sides of t
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!