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
Law Incorporation [45]
3 years ago
9

Which series has a sum of 20?

Mathematics
1 answer:
alexandr402 [8]3 years ago
5 0

Answer:

  see below

Step-by-step explanation:

The sum of an infinite series with first term "a" and common ratio "r" is ...

  S = a/(1 -r) . . . . . for |r| < 1

Then the sums for the given answer choices are ...

  A: 5/(1 -3/4) = 20 . . . . . the answer of choice

  B: 4/(1 -5/6) = 24

  C: 4/(1 -1/5) = 5

  D: 10/(1 -1/5) = 12.5

You might be interested in
20 pointsss :)
cluponka [151]
  • Answer:

180-93=87..... Exterior angles of a triangle

6 0
3 years ago
What is the value of x in 34 + 2x = 40
alekssr [168]

Hello from MrBillDoesMath!

Answer:

3

Discussion:

34           + 2x = 40             => subtract 34 from both sides

(34-34)   + 2x = 40 - 34     => as (34-34) = 0 and 40-34 = 6

2x                   = 6               => divide both sides by 2

x = 6/2 = 3

Check the answer:

Does 34 + 2x = 40 if x = 3 ?

Does 34 + 2(3) = 40 ?

Does 34 + 6      = 40 ?  YES! so the answer checks.

Thank you,

MrB

4 0
3 years ago
Read 2 more answers
Jed is an electrician. Jed and his wife are accrual basis taxpayers and file a joint return. Jed wired a new house for Alison an
tankabanditka [31]

Answer:

$3000

Step-by-step explanation:

Assuming that the court didn't charge any legal fee to Jed and Jed also the lawyer for this case didn't charge him anything, Jed had personally planned to get $15,000. Subtracting the amount initially paid, $10,000, Jed still needs $5,000 from Alison. Assuming a fair judgement was made, giving Jed 2,000 and subtracting this from his expectation of $5,000 we remain with $3,000. Therefore, we can conclude that the $3,000 is the loss he should record out of this deal.

6 0
3 years ago
Los Angeles is about 385 miles from San Francisco. How far apart would the cities be on a map with a scale of 1 in. = 25 mi? If
Dmitry_Shevchenko [17]
15.4 should be the answer
8 0
3 years ago
Read 2 more answers
a (1,4) b (-1,2) c (5,-2) are the vertices of triangle abc find the sum of coordinates of the point where the right bisector of
zmey [24]

Answer:

3.

Step-by-step explanation:

Find the midpoint of BC:

midpoint = (-1+5)/2, (2-2)/2 = (2, 0).

The slope of BC = (2 - -2) / (-1-5) = -2/3.

Find the equation of the right bisector of BC:

The slope = -1 / -2/3 = 3/2.

y-y1 = m(x-x1)

y - 0 = 3/2(x - 2)

y = 3/2x - 3.

Now find the equation of the median through C:

The midpoint of AB = (1 - 1)/2, (4+2)/2

= (0, 3).

The equation of the median:

The slope = (-2-3) / (5-0)

= -1.

The equation is:

y - 3 = -1(x - 0)

y -3 = -x.

Now we find the point of intersection by solving the 2 equations:

y - 3 = -x

y = 3/2x - 3

y = -x + 3

So:

3/2x - 3 = -x + 3

3/2x + x = 6

5/2 x = 6

x = 12/5.

y =  -12/5 + 3

= -12/5 + 15/5

= 3/5.

The sum of the coordinates = 12/5 + 3 /5

= 15/5

= 3.

3 0
3 years ago
Other questions:
  • Calculate dy/dx when y = (x2 + 2)e 4x as the derivative of a product, letting u = x2 + 2 and v = e4x . Which of the following is
    5·1 answer
  • What are the steps to this equation?
    6·1 answer
  • The first histogram shows the average life expectancies for women in different countries in Africa in 1998; the second histogram
    13·1 answer
  • Find the decimal equivalent to 4/15
    11·1 answer
  • Solve the system of linear equations below. X + y = 4 2x + 3y = 0 A. X = -6, y = 2 B. X = -1, y = 5 C. X = 11 5 , y = 9 5 D. X =
    9·2 answers
  • 19 Jaime bounces a basketball 30 times in 25 seconds. At that rate,
    6·1 answer
  • 2 The following functions are equivalent.
    8·1 answer
  • Selvi deposited RM8 000 in a fixed deposit
    11·1 answer
  • Is 2.200929 rational
    13·1 answer
  • VERY SMALL PROJECT PLEASE HELP!!! (50 POINTS + BRAINLIEST to first helping answer)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!