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3 years ago

7

How are improper fractions and mixed numbers different from proper fractions?

1 answer:

madreJ [45]3 years ago

4 0

Improper fractions and mixed numbers are always greater than or equal to 1, while proper fractions are less than 1 and greater than 0. Improper fractions have a numerator that's bigger than it's denominator, while proper fractions have a numerator that's smaller than it's denominator.

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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

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3 years ago

Joan’s uncle has promised her $20,000 when she graduates college 4 years from now. What is the equivalent amount stated in today

MaRussiya [10]

Answer:

2:10

Step-by-step explanation:

pow pow

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3 years ago

Please help I’m confused?!?

olga2289 [7]

It is just asking you to reorder the number so that the smallest number is first and the largest number is last.

The answer is: 8, 8.261, 8.4, 8.634

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3 years ago

Read 2 more answers

Approximately how many inches are in 6 meters? A) 72 inches B) 144 inches C) 216 inches D) 234 inches

Blababa [14]

The answer would be D

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3 years ago

Hello please help me<br>(this is 6th grade math) <br>

user100 [1]

1:4
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5:20 then just graph it according to the x and y coordinates

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3 years ago