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3 years ago

ASAP please help me I need this quick The question and answers are in the picture

Mathematics

1 answer:

7nadin3 [17]3 years ago

5 0

Thé correct answer is the third one

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What equals -9 + 6 please help me pleassssssse

AURORKA [14]

Answer:

-3

Step-by-step explanation:

since the 9 in negative you subtract 9 by 6 and you get 3 then you put the negative sign in front of the 3 making it -3

3 0

2 years ago

Read 2 more answers

Represent the geometric series using the explicit formula.

Dennis_Churaev [7]

The correct answer is:

b.) f(n) = 3 • (-2)^(n-1)

Further explanation:

Given sequence is:

3, -6, 12, -24, ...

We have to find the common ratio first.

Common ratio is the ratio between two consecutive terms of a geometric sequence.

It is denoted by r.

So,

$Here,\\a_1=3\\a_2=-6\\a_3=12\\a_4=-24\\r=\frac{a_2}{a_1}=\frac{-6}{3}=-2\\\frac{a_3}{a_2}=\frac{12}{-6}=-2$

General formula for geometric sequence is:

$a_n=a_1r^{n-1}\\Here\\a_n\ is\ the\ nth\ term\\a_1\ is\ the\ first\ term\\and\\r\ is\ common\ ratio$

Putting the values of a1 and r

$a_n=3.(-2)^{n-1}\\f(n)=3.(-2)^{n-1}$

Hence,

The correct answer is:

b.) f(n) = 3 • (-2)^(n-1)

Keywords: Geometric Sequence, Explicit formula

Learn more about geometric sequence at:

#LearnwithBrainly

7 0

3 years ago

I need find volumen i need help

ValentinkaMS [17]

Answer:

it's 512

Step-by-step explanation:

5 0

2 years ago

What is the greatest common factor of 18&28

mestny [16]

List the GCF of 18 and 28
18: 1, 2, 3, 6, 9, 18
28: 1, 2, 4, 7, 14, 28
So 2 is the GCF because it is the greatest number that can divide by both numbers

4 0

3 years ago

The area of a rectangle with base b and height h is bh. A rectangular sports goal is 10ft wide and 8 ft high. Find the area of t

bogdanovich [222]

A = bh

A = 10(5)

A = 50 ft2

8 0

3 years ago

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