3 years ago

Please help. I’ll mark you as brainliest if correct

Mathematics

1 answer:

Alona [7]3 years ago

3 0

Answer:

32 20 17 -57 13

-24 15 -31 31 -28

27 10 -7 18 22

Step-by-step explanation:

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The sum of an infinite geometric series is three times the first term. Find the common ratio of this series.

adelina 88 [10]

Answer:

$\frac{2}{3}$

Step-by-step explanation:

The sum of an infinite geometric series is expressed according to the formula;

$S_\infty = \dfrac{a}{1-r}$ where;

a is the first term of the series

r is the common ratio

If the sum of an infinite geometric series is three times the first term, this is expressed as $S_\infty = 3a$

Substitute $S_\infty = 3a$ into the formula above to get the common ratio r;

$3a = \dfrac{a}{1-r} \\\\$

$cross \ multiply\\\\3a(1-r) = a\\\\3(1-r) = 1\\$

open the parenthesis

$3 - 3r = 1\\\\$

subtract 3 from both sides

$3 - 3r -3= 1-3\\\\-3r = -2\\\\r = \frac{2}{3}$

Hence the common ratio of this series is $\frac{2}{3}$

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3 years ago

Five friends buy tickets to a carnival. They each also spend $4 on a funnel cake. They spent a total of $60. How much does one t

Butoxors [25]

Answer:

$8 for each tickets

Step-by-step explanation: 60/5 equals 12

Each friends have $12

12-4=8

Each ticked cost 8 dollars.

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3 years ago

A student concluded that has infinitely many solutions. Which statement BEST describes the student’s conclusion?

Nastasia [14]

What's the equation?

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3 years ago

Find the GCF of the following monomials. -50m⁴ n⁷ and 40m² n¹⁰

babunello [35]

Greetings!

We can factor this expression/ the GCF is:
$-10m^2n^7$

$(-10m^2n^7)(5m^2-4n^3)$

Hope this helps.
-Benjamin

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3 years ago

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Can someone help me understand this? Because I really don’t understand this at all

Otrada [13]

Answer: I believe it is A OR B

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THEN ¬A⇒C I THINK ITS A THO

OR ¬A⇒¬C

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3 years ago