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
Verdich [7]
3 years ago
10

Find the sum of the first 39 terms of the following series, to the nearest integer 7,15,23,...

Mathematics
1 answer:
sertanlavr [38]3 years ago
4 0

Answer:

6201

Step-by-step explanation:

formula for series in AP

where n is the nth term and a is first term and d is difference between two terms in series sum = \frac{n}{2} (2a \:  + (n - 1)d)

You might be interested in
Which of the following, while appearing negative, might actually be considered an advantage of filing bankruptcy?
Yuri [45]
<span>Which of the following, while appearing negative, might actually be considered an advantage of filing bankruptcy?
a.
inability to get new credit cards
b.
inability to discharge all debt
c.
inability to get a car loan
d.
inability to stop collections by creditors\

The answer is A</span>
4 0
3 years ago
Read 2 more answers
A $100 pair of headphones is marked down by 10% and you also have a 20% off coupon What is the final price before tax? O A) $90​
dsp73

Answer:

$70.00

Step-by-step explanation:

6 0
3 years ago
AB and CD are parallel. EF is the translation of AB. Is EF parallel to CD? Justify. What does this prove about the effect of tra
sergij07 [2.7K]
Yes, EF is parallel to CD. Translation is the simple slide of a shape, therefore it doesn't have an effect on parallel lines.
8 0
3 years ago
Read 2 more answers
If the perimeter of a square is 68 feet, find the approximate length of its diagonal.A. 17 feet B. 24 feet C. 38 feet D.
Elanso [62]

Find the side length:

Side = 68/4 = 17

Now use Pythagorean theorem:

Diagonal = sqrt(17^2 + 17^2)

Diagonal = sqrt(289 + 289)

Diagonal = sqrt(578)

Diagonal = 24 feet

The answer is B. 24 feet

8 0
2 years ago
F(x) = -2x + 9, find x if f(x) = 23
JulijaS [17]

Answer:

x = -7

Step-by-step explanation:

f(x) = -2x + 9

f(x) = 23

therefore, f(x) =

-2x + 9 = 23

     -2x = 23 - 9

     -2x = 14

       -x = 14 ÷ 2

       -x = 7

        x = -7

7 0
3 years ago
Other questions:
  • 10 more than the width the area is 336 square feet find the length and width of the rectangle
    12·1 answer
  • Not sure about my answers so far... Need ️ig help, homies.
    7·1 answer
  • A bottle contains red beads and white beads.
    7·1 answer
  • Help help help help help
    14·2 answers
  • Please help find the percent of decrease?!
    12·1 answer
  • 16. In the expression a+2a-12c^2, a, 2b, and -12c2 are examples of
    15·1 answer
  • Two identical quarter circles are cut from a rectangle as shown
    10·1 answer
  • Answer quick please I dont really get this
    13·1 answer
  • How do you multiply ​
    12·1 answer
  • Seeta is organising a concert to raise money for a school and for a hospital.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!