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Digiron [165]
2 years ago
6

Acellus

Mathematics
2 answers:
givi [52]2 years ago
6 0

Answer:

3/10

Step-by-step explanation:

antoniya [11.8K]2 years ago
6 0

Answer:

\frac{3}{10}

Step-by-step explanation:

the bag contains <u>10</u> marbles in total

the problem tells us that the bag contains <u>3</u> blue marbles

the probablity that a blue marble is drawn is 3/10

You might be interested in
The population standard deviation for the temperature of beers found in Scooter's Tavern is 0.26 degrees. If we want to be 90% c
siniylev [52]

Answer:

19 beers must be sampled.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.9}{2} = 0.05

Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.05 = 0.95, so Z = 1.645.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

The population standard deviation for the temperature of beers found in Scooter's Tavern is 0.26 degrees.

This means that \sigma = 0.26

If we want to be 90% confident that the sample mean beer temperature is within 0.1 degrees of the true mean temperature, how many beers must we sample?

This is n for which M = 0.1. So

M = z\frac{\sigma}{\sqrt{n}}

0.1 = 1.645\frac{0.26}{\sqrt{n}}

0.1\sqrt{n} = 1.645*0.26

\sqrt{n} = \frac{1.645*0.26}{0.1}

(\sqrt{n})^2 = (\frac{1.645*0.26}{0.1})^2

n = 18.3

Rounding up:

19 beers must be sampled.

7 0
2 years ago
Plzzzzzz help...will give BRAINLIEST to right answer!!<br><br><br><br><br> -4/5÷(-7/6)=?
lubasha [3.4K]

The answer is 24/35.

7 0
3 years ago
Read 2 more answers
82. Subtract 12x? + 6y - 3 and 3x? - 9y + 12
balu736 [363]

Answer:

-x^2+15y-15

Answer if it is a ^2

Step-by-step explanation:

2x^2 + 6y - 3 -(3x^2 - 9y + 12)=

2x^2+6y-3-3x^2+9y-12=

-x^2+15y-15

is it a ^2 or a question mark

3 0
3 years ago
What does these expression represent? 12f+24
Otrada [13]

Answer: the expression 12f + 24 represents 12 times a quantity, added to 24.


Expplanation.


The <em>expression 12f + 24</em> is an algebraic <em>expression</em>, especifically a first degree binomial; this is, a polynomial of two terms, whose maximum power is 1.


The algebraic expressions are used to <em>represent</em> word statements in mathematical language.


You can analyze each term of the expression and then tell what the total expresssion represents:


  • The first term <em>12f</em>, where f is a variable with degree 1 (the exponent of the variable), <em>represents</em> the multiplication of a quantity (represented by the variable f) by 12.
  • 24 is the constant term, it <em>represents</em> an constand addend.
  • Hence, the total <em>expression represents</em> the multiplication of a quantity  by 12,  and, after the multplication is done, added with 24.


5 0
2 years ago
Expanded form for 41.32
Anna35 [415]
It is:

40+1+0.3+0.02=41.32



4 0
3 years ago
Read 2 more answers
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