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Lunna [17]
3 years ago
11

What is the cosine of angle a? a. 8/17 b. 15/8 c. 15/17 d. 8/15

Mathematics
1 answer:
jolli1 [7]3 years ago
6 0
Check the picture below.

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Which equation represents the partial sum of the geometric series?
kati45 [8]

Answer:

Option 1

Step-by-step explanation:

Given expression representing the partial sum of the geometric series,

\sum_{n=1}^{n=4}(125)(\frac{1}{5})^{n-1}

Expression that represents the sum of a geometric series is,

\sum_{n=1}^{n}(a)(r)^{n-1}

Here, n = number of terms

a = first term

r = common ratio

By comparing both the expressions,

n = 4

a = 125

r = \frac{1}{5}

From the given options,

Option 1

First term 'a' = 125

Common ratio 'r' = \frac{25}{125} = \frac{1}{5}

Number of terms 'n' = 4

Therefore, Option 1 will be the correct option.

8 0
3 years ago
Plz help. Question on the picture
mestny [16]

Answer: There is no picture.

Step-by-step explanation:

7 0
3 years ago
The sum of 10 consecutive integersstarting with 11, equals the sum of 5 consecutive integers, starting with
kaheart [24]

Answer: \large\boxed{29}

Step-by-step explanation:

The sum of 10 consecutive integersstarting with 11

= 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = 155

Lets try 29:

29 + 30 + 31 + 32 + 33 = 155

Therefore our answer is:

\large\boxed{29}

3 0
2 years ago
A has a piece of ribbon that is one fourth long she wants to share the ribbon with 2 friends so that they can each wear a ribbon
Volgvan
How long is the ribbon? Or in other words what is it 1/4 of?
5 0
4 years ago
Question 1
Ray Of Light [21]

Answer:

8, 15, 17

Step-by-step explanation:

That's a triple I remember

6 0
3 years ago
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