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Anettt [7]
2 years ago
12

What is ∑n=15[5(−2)n−1] equal to?

Mathematics
1 answer:
kicyunya [14]2 years ago
6 0

Answer:

Although the notation is sloppy, I will assume based on former questions of the same that "∑n=15[5(−2)^n−1]" translates mathematically to . Please correct me, though, if this in incorrect.

Anyway, there is neat formula that will deal with question very quickly. It is the following:

Sn is the sum of the geometric series

a1 is the first term in the series

r is the common ratio

n is the number of terms in the finite geometric series

Let's use this formula to our advantage! However, there are two variables that we do not know: a1 and n. Let's start with a1.The first term in the series is when n=1, so let's determine what that is.

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What is 6 divided by 7/9
Hunter-Best [27]

Answer:

54/7

Step-by-step explanation:

  1. Use the KCF method - Keep, Change, Flip
  2. 6 divided by 7/9 is just 6/1 divided by 7/9
  3. You can keep 6/1 as the way it is
  4. Next, you change the sign from division to multiplication
  5. Lastly, you flip 7/9 to 9/7
  6. It will now change from 6 divided by 7/9 to 6/1 x 9/7
  7. You now multiple 9 x 6 which is 54 and divide by 7
  8. You cannot simplify further so the answer is 54/7

PLEASE PICK ME AS THE BRAINLIEST

6 0
3 years ago
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Erin received the following scores on her last four spelling tests. 2125, 82%, 0.8, 1720 2125, 82%, 0.8, 1720 Which of these is
AveGali [126]

the highest score is obviously going to be 2125 because that is 100%


6 0
3 years ago
Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.
scoray [572]

Answer:

8(15-m)

Step-by-step explanation:

just took the test

4 0
3 years ago
what steps of the equation of the line using point slope formula then using slope intercept form (1,2) with slope of -4/5
aleksandrvk [35]

Answer:

  • the way its set up its kind of confusing

Step-by-step explanation:

8 0
3 years ago
In Kite KLMN, find the measure of
Degger [83]

Answer:

M = K =

<h3>101°</h3>

Step-by-step explanation:

M = K, because it's a kite.

  • Kite has 2 angles on the left and right, each with the same size,
  • The kite also has different angles at the other angle points.

(Addition of kite angles result in 360°)

Therefore

360 = 63 + 95 + 2M

2M = 360-63-95

2M = 202

M = 202÷2

M = K = 101°

The size of each angle M and angle K = 101 degrees.

____________________

#IndonesianPride - kexcvi

#MerdekaMerdeka

3 0
3 years ago
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