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GuDViN [60]
2 years ago
15

13. Which is an irrational number? A 45 B 9 Clo

Mathematics
2 answers:
hjlf2 years ago
6 0
Both of these are rational, so wHaT arE yoU tAlkIng aBouT
shusha [124]2 years ago
5 0
Both are irrational numbers . Means both of these
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A fire department in a rural county reports that its response time to fires is approximatelyNormally distributed with a mean of
____ [38]

Answer:

Option C) 0.25

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 22 minutes

Standard Deviation, σ = 11.9 minutes

We are given that the distribution of  response time is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(response times is over 30 minutes)

P(x > 30)

P( x > 30) = P( z > \displaystyle\frac{30 - 22}{11.9}) = P(z > 0.6722)

= 1 - P(z \leq 0.6722)

Calculation the value from standard normal z table, we have,  

P(x > 30) = 1 - 0.749= 0.251 = 25.1\%

Thus, the correct answer is

Option C) 0.25

3 0
2 years ago
Read 2 more answers
Naya needed to buy boxes of cupcakes for a party.Naya had $60 to spend on the boxes of cupcakes which were each $12.How many box
ivann1987 [24]
5 boxes .. 12 divided by 60
3 0
3 years ago
Read 2 more answers
Find the number that makes the ratio equivalent to 5:4.<br> :48
Orlov [11]

Answer:

60

Step-by-step explanation:

5:4 = 60:48

5 0
3 years ago
What is 1/144 as an expression using a negative exponent
MrRissso [65]

ANSWER

{12}^{ - 2}

EXPLANATION

The given expression is

\frac{1}{144}

This is the same as:

\frac{1}{12 \times 12}

In index notation, we write this as

\frac{1}{ {12}^{2} }

To write this as a negative index, we use the property:

\frac{1}{ {a}^{m} }  =  {a}^{- m}

This implies that;

\frac{1}{ {12}^{2} }  =  {12}^{ - 2}

3 0
2 years ago
Below are two parallel lines with a third line intersecting them.
Law Incorporation [45]

Answer:

The line intersecting is a transversal and x is 44 degrees.

Hope it helps!!!

7 0
2 years ago
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