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Svetlanka [38]
3 years ago
11

Help!!!! 100 POINTS (FIRST CORRECT ANSWER GETS BRAINLIEST)

Mathematics
1 answer:
sashaice [31]3 years ago
8 0

Answer:

14x+4

Step-by-step explanation:

5x+5x+2x+2x+3+3-1-1

5x+5x+2x+2x=14x

3+3-1-1=4

14x+4

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Answer:lololo

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What is two plus four
Vika [28.1K]

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3 years ago
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What is the circumference of a circle with a radius of 0.8 m? A. 0.64*pi m B. 0.8*pim C. 1.6*pi m D. 2.56*pi m
Paraphin [41]
C = 2πr
C = 2(3.14)(0.8)
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7 0
3 years ago
What is the sum of the first seven terms of the geometric series 2 - 10 +50 -...?
Umnica [9.8K]

Answer:

26042.

Step-by-step explanation:

What's the first term of this geometric series?

2.

What's the common ratio of this geometric series?

Divide one of the terms with the previous term. For example, divide the second term -10 with the first term 2.

\displaystyle r = \frac{-10}{2} = -5.

What's the sum of this series to the seventh term?

The sum of the first n terms of a geometric series is:

\displaystyle a_1 \cdot \frac{1-r^{n}}{1-r},

where

  • a_1 is the first term of the series,
  • r is the common ratio of the series, and
  • n is the number of terms in this series.

\displaystyle 2 \times\frac{1- (-5)^{7}}{1- (-5)}=26,042.

3 0
3 years ago
PLEASE HELP ME ASAP!!!!!!
attashe74 [19]

Answer:

they are vertical angles

Step-by-step explanation:

just learned about this

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