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3 years ago

Find the 7th term of the geometric sequence -2, 6, -18, 54, -162, ...

Mathematics

1 answer:

AlladinOne [14]3 years ago

4 0

Answer:

-1458

Step-by-step explanation:

Let's find the rule of the sequence. It seems that each term is -3 times the previous term.

Let's continue the sequence.

486, -1458

-1458 is the 7th term

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The sum of two numbers is 45 and the difference is 3. What are the numbers?

AVprozaik [17]

Answer:

24 and 21 are the two numbers

Step-by-step explanation:

let n represent the unknown number

let n-3 represent the second unknown number

n+n-3 = 45

2n-3=45

2n=45+3

2n=48

n=48/2

n=24

n-3=21

CHECK: 24+21=45

.˙. the first number is 24 and the second number with a difference of 3 is 21

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2 years ago

I need help ASAP will mark the brainliest

MatroZZZ [7]

Answer:

The second answer

Step-by-step explanation:

Hope this helps dude

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3 years ago

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if the class charges $15 per ticket write an equation that could be used to determine the number of tickets the class would need

OverLord2011 [107]

t = number of tickets

15t ≥ 1500

so....

step 1. 15t ≥ 1500 --> divide both sides by 15 --> 15t/15 ≥ 1500/15

step 2. t ≥ 100

So 100 at the least, ticket should be sold to reach atleast $1500.

I hope this helps. :)

5 0

3 years ago

The ratio of girls to boys in a class is 3:5 what fraction of the class are girls?

Wewaii [24]

Answer:

Hello!!

If the ratio of girls to boys in a class is 3:5, the fraction of the class that are girls is...

$\frac{3}{5}$

Hope this helps!!

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3 years ago

The graphs below have the same shape. what is the equation of the red graph?

Naily [24]

Answer:

Option D. $G(x)=x^{3}-1$

Step-by-step explanation:

we have

$F(x)=x^{3}$ -----> the parent function

The vertex of the function F(x) is the origin (0,0)

The vertex of the function G(x) is the point (0,-1)

The rule of the translation is equal to

(x,y)------> (x,y-1)

That means ------> The translation is 1 unit down

Applying the rule of the translation to F(x)

F(x)-------> G(x)

$G(x)=x^{3}-1$

7 0

3 years ago