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4 years ago

7

Find the mean for the set of number? please help me with the problem 10.7,10.8,4.511.2

2 answers:

liberstina [14]4 years ago

8 0

To find the mean for a set of numbers you add all of the numbers to get a total.
<span>10.7+10.8+4.5+11.2= </span>37.2
37.2 is the total of all the numbers
You have 4 numbers that you added together
take your total which is 37.2 and divide it by 4
37.2÷4= 9.3
Your answer would be 9.3

erica [24]4 years ago

6 0

1) add all the numbers together.
10.7 + 10 + 8 + 4.5112 = 26.0112

2) divide the result by how many numbers you have.
26.0112÷4 = 6.5028

Answer = 6.5028

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3 years ago

64, –48, 36, –27, ...<br><br> Which formula can be used to describe the sequence?

nordsb [41]

Answer:

$\boxed{a_n \: = \: 64 \: \times \: ( - \frac{3}{4} ) ^{n \: - \: 1} }$

Step-by-step explanation:

We first compute the ratio of this geometric sequence.

$r \: = \: \frac{ - 48}{64} \\ \\ r \: = \: \frac{36}{ - 48} \\ \\ r \: = \: \frac{ - 27}{36}$

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$r \: = \: - \frac{3 }{4} \\ \\ r \: = \: - \frac{3 }{4} \\ \\ r \: = \: - \frac{3 }{4}$

We deduce that it is the common ratio because it is the same between each pair.

$r \: = \: - \frac{3 }{4}$

We use the first term and the common ratio to describe the equation:

$a_1 \: = \: 64; \: r \: = \: - \frac{3 }{4}$

<h3>We apply the data in this formula:</h3>

$\boxed{a_n \: = \: a_1 \: \times \: {r}^{ n \: - \: 1} }$

_______________________

<h3>We apply:</h3>

$\boxed {\bold{a_n \: = \: 64 \: \times \: {( - \frac{3}{4} )}^{ n \: - \: 1} }}$

<u>Data</u>: The unknown "n" is the term you want

<h3><em><u>MissSpanish</u></em></h3>

4 0

2 years ago

Find the volume of a pyramid with a square base, where the area of the base is 7.9 m^2

Fofino [41]

The pyramid formula:
$\frac{1}{3} \times base \times height$

The volume in this case would be:

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3 years ago

Use the distributive property to simplify this expression: negative 2 (3 x + x minus 5). 1. Using order of operations, combine l

sashaice [31]

Answer:

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Step-by-step explanation:

2x3x=6x, 2 x x=2x, 2x-5=-10 so 6x+2x-10= 8x-10

5 0

3 years ago

Read 2 more answers

What is , x + 4 + 5x =34

galina1969 [7]

X+4+5x=6x+4
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4 0

3 years ago

Read 2 more answers