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3 years ago

Given the geometric sequence where a1 = 3 and the common ratio is −1, what is the domain for n?

Mathematics

2 answers:

frozen [14]3 years ago

7 0

Answer:

The domain for n is:

All integers where n ≥ 1

Step-by-step explanation:

We are given a geometric sequence where the first term of the sequence is:

$a_1=3$ and the common ratio(r) is −1.

We are asked to find the domain for n.

We know that the domain of the geometric sequence whose terms are given by $a_n$ are all the natural numbers since by putting the n we get the corresponding term.

Hence, the domain is:

All integers where n ≥ 1

liubo4ka [24]3 years ago

4 0

All integres n >= 1

Its D

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Answer:

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Step-by-step explanation:

Recall the form of the difference of squares.

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Now let's apply it to your numbers:

$85^2 - 15^2 = (85 + 15)(85 - 15)$

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3 years ago

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3 years ago

Given area of a rectangle: 7x^2+57x+8 <br> Find Perimeter:

Sever21 [200]

Answer:

Perimeter of the rectangle is 16x+18 units.

Step-by-step explanation:

The area of rectangle is

$7x^2+57x+8$

First we have to find the factor form of above expression.

Splitting the middle term, we get

$7x^2+56x+x+8$

$7x(x+8)+1(x+8)$

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Area of a rectangle is the product of its dimensions. It means dimensions of the rectangle are (x+8) and (7x+1).

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$Perimeter=2(l+b)$

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4 years ago

ABCD is a rectangle. What is the value of x?

kvv77 [185]

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3 years ago

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Which of the following is radical equation<br> algebra II engenuity

Amanda [17]

Answer:

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Step-by-step explanation:

The equation is √x+3=13 is radical because the unknown, x appears under a radical sign √.

To solve the equation, the unknown is left on one side of the equal sign and then both sides of the equal sign are raised to an equal power which would remove the radical sign.

For example,

√x+3=13

√x=13-3

√x=10

Removing radical.

(√x)²=10²

x=100

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3 years ago