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SOVA2 [1]
3 years ago
6

How would #8 be written out

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
6 0
30-3x^2 

30-3(3)^2  Substitute \ x \ for \ 3 

Use \ Product \ Rule: \ x^ax^b=x^a^+^b 


30-3^3
 
 

30 - 27 

x=3
Alecsey [184]3 years ago
4 0
It would be written out as "number eight".
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Answer:

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Step-by-step explanation:

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What is the difference?<br><br> 52 – 13 =<br><br> 29<br> 39<br> 41<br> 65
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Answer:

52-13 = 39

Step-by-step explanation:

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Roll the number cube to find the observed frequency. Which statements are true? Check all that apply
ch4aika [34]

Answer:

(a) and (c)

Step-by-step explanation:

Given

See attachment for complete question

Required

Select all true statements

First, calculate the total observed frequency;

Total = 11 + 16 + 14 + 20 + 12 + 17

Total = 90

<u>(a): Relative frequency of 4 is 2/9</u>

Relative frequency is calculated by:

RF= \frac{Observed\ Frequency}{Total}

For roll 4

Observed\ frequency = 20

So, the relative frequency is:

RF = \frac{20}{90}

Simplify

RF = \frac{2}{9}

<em>(a) is true</em>

<u>(b): Experimental probability of 3 greater than its theoretical probability</u>

The experimental probability is its relative frequency;

For roll 3

Observed\ frequency = 14

The experimental probability is:

Pr = \frac{14}{90}

Simplify

Pr = \frac{7}{45} = 0.156

To calculate  the theoretical probability, w have:

S = \{1,2,3,4,5,6\} ---- sample space

n(S)= 6

n(3) = 1 --- number of times 3 occur

The theoretical probability is:

Pr = \frac{1}{6} = 0.167

The theoretical probability is greater\ than\ the experimental probability.

<em>(b) is false</em>

<u>(c): Experimental probability of 2 greater than its theoretical probability</u>

Using the explanations in (b), we have:

For roll 2

Observed\ frequency = 16

The experimental probability is:

Pr = \frac{16}{90}

Simplify

Pr = \frac{8}{45} = 0.178

To calculate the theoretical probability, we have:

n(S)= 6

n(2) = 1

The theoretical probability is:

Pr = \frac{1}{6} = 0.167

The experimental probability is greater\ than\ the theoretical probability.

<em>(c) is true</em>

<u>(d): Relative frequency of 5 is 2/13</u>

For roll 5

Observed\ frequency = 12

The relative frequency is:

RF = \frac{12}{90}

Simplify

RF = \frac{2}{15}

<em>(d) is true</em>

7 0
3 years ago
There are 28 student desks in Ms.Johnson's.Each desk measures 26.17 inches long.If you were to line up all the desk end-to-end,h
iragen [17]

Answer:

To find the answer to this question we need to multiply the number of desks by the length of each desk.  

26.17 × 28 = 732.76

So the final answer is 732.76 inches

Step-by-step explanation:

4 0
3 years ago
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