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elena55 [62]
2 years ago
7

Pleaseeeeeeeee helpppppppppppp

Mathematics
1 answer:
Rainbow [258]2 years ago
5 0

Answer:

I believe your have to find the linear lines in order to find the answer.

Step-by-step explanation:

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Find the sum of the first 8 terms of the following sequence. Round to the nearest hundredth if necessary
AlexFokin [52]

The sum of the first 8 terms is 2.51 to the nearest hundredth

Step-by-step explanation:

In the geometric sequence there is a constant ratio between each two consecutive terms

The formula of the sum of n terms of a geometric sequence is:

S_{n}=\frac{a(1-r^{n})}{1-r} , where

  • a is the first term
  • r is the constant ratio between the consecutive terms

∵ The sequence is 6 , -5 , 25/6 , .............

∵ -5 ÷ 6 = \frac{-5}{6}

∵ \frac{25}{6} ÷ -5 = \frac{-5}{6}

- There is a constant ratio between the consecutive terms

∴ The sequence is a geometric sequence

∵ The first term is 6

∴ a = 6

∵ The constant ratio is \frac{-5}{6}

∴ r =  \frac{-5}{6}

∵ We need to find the sum of 8 terms

∴ n = 8

- Substitute the values of a, r and n in the rule above

∴ S_{8}=\frac{6[1-(\frac{-5}{6})^{8}]}{1-(\frac{-5}{6})}

∴ S_{8}=2.511595508

- Round it to the nearest hundredth

∴ S_{8}=2.51

The sum of the first 8 terms is 2.51 to the nearest hundredth

Learn more:

You can learn more about the sequences in brainly.com/question/7221312

#LearnwithBrainly

3 0
3 years ago
What is the radius of a sphere with a volume of 623.3cm? Round to the nearest<br> tenth ?
sergiy2304 [10]

Answer:

5.3

Step-by-step explanation:

r = (3V/4pi)^1/3

7 0
3 years ago
Can someone solve for x??
miskamm [114]

Sum of interior angle of polygon: S = (n-2) * 180°,

where n is number of sides and where S is total degrees.

With 6 sides, n = (6-2)*180 = 720°

Then set all of the interior equations equal to the sum, or

720 = 5x + 4x+2 + 5x+6 + 2x-2 + 3x+5 + x-10

720 = 20x + 1

719 = 20x

x = \frac{719}{20} = 35.95

7 0
3 years ago
What is the answer a b c d
Pavel [41]
I believe that the answer would be D but I’m not an expert soooooo
3 0
3 years ago
Read 2 more answers
Lucy has a game that uses yellow cards and red cards the ratio of yellow card to red card is 4 to 7 which statement is another w
vlabodo [156]

Answer: The ratio of yellow card to red card is 4:7.

Step-by-step explanation:

We can describe the rate of A to B as A:B.

Given: Lucy has a game that uses yellow cards and red cards the ratio of yellow card to red card is 4 to 7.

Then, the statement is another way to describe this ratio would be 4:7.

Required statement:  The ratio of yellow card to red card is 4:7.

3 0
2 years ago
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