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4 years ago

Given the arithmetic sequence an = 2 − 3(n − 1), what is the domain for n?

Mathematics

2 answers:

Yuki888 [10]4 years ago

4 0

All integers where n> 1

Lunna [17]4 years ago

4 0

all integers where n is greater than or equal to 1

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How to solve: 3*9^(2n) = (3^(n +1))^3

vova2212 [387]

3×9
n+1
−9×3
2n

=
3×3
2n+3
−(3
2
)
n+1

3×(3
2
)
n+1
−3
2
×3
2n

=
3
1+2n+3
−3
2n+2

3
1+2n+2
−3
2+2n

=
3
4+2n
−3
2n+2

3
3+2n
−3
2+2n

=
3
2n
(3
4
−3
2
)
3
2n
(3
3
−3
2
)

=
81−9
27−9

=
72
18

=
4
1

8 0

3 years ago

Read 2 more answers

Which catergory do both shapes belong to? iready

Wewaii [24]

Sorry but we don't see the shapes

^Have a good day, Hazel^

3 0

3 years ago

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Hey! i’ll give brainliest please help.

marta [7]

Answer:

I think Darius I is the correct answer.

6 0

3 years ago

Please help! acellus

ch4aika [34]

Answer:

The number that belongs in the green box is equal to 909.

General Formulas and Concepts:
Algebra I

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] Pythagorean Theorem:
$\displaystyle a^2 + b^2 = c^2$

a is a leg
b is another leg
c is the hypotenuse

Step-by-step explanation:

Step 1: Define

Identify given variables.

a = 30

b = 3

c = x

Step 2: Find x

Let's solve for the general equation that allows us to find the hypotenuse:

[Pythagorean Theorem] Square root both sides [Equality Property]:
$\displaystyle \begin{aligned}a^2 + b^2 = c^2 \rightarrow c = \sqrt{a^2 + b^2}\end{aligned}$

Now that we have the formula to solve for the hypotenuse, let's figure out what x is equal to:

[Equation] Substitute in variables:
$\displaystyle \begin{aligned}c & = \sqrt{a^2 + b^2} \\x & = \sqrt{30^2 + 3^2}\end{aligned}$
Evaluate:
$\displaystyle \begin{aligned}c & = \sqrt{a^2 + b^2} \\x & = \sqrt{30^2 + 3^2} \\& = \boxed{ \sqrt{909} } \\\end{aligned}$

∴ the hypotenuse length x is equal to √909 and the number under the square root, our answer, is equal to 909.

___

Learn more about Trigonometry: brainly.com/question/27707750

___

Topic: Trigonometry

3 0

2 years ago

What value of x makes the equation below true? −2x=−36 A x=−34 B x=−38 C x=−18 D x=18

ad-work [718]

Answer:

D x = 18

Step-by-step explanation:

Given equation:

−2x = −36

Divide both sides by -2 to find x

−2x / -2 = −36 / -2

x = −36 / -2

x = 18

x = 18 makes the equation −2x = −36 true

3 0

3 years ago