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2 years ago

I will give 25 points for each page there’s 3 others just like this pleasee help

Mathematics

1 answer:

pav-90 [236]2 years ago

3 0

Answer:

Step-by-step explanation:

28 28

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The average time an individual reads online national news reports is 49 minutes. Assume the standard deviation is 16 minutes and

Olin [163]

Answer:

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 49 minutes

Standard Deviation, σ = 16 minutes

We are given that the distribution of time an individual reads is a bell shaped distribution that is a normal distribution.

Formula:

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

P(no more than 30 minutes)

$P( x \leq 610) = P( z \leq \displaystyle\frac{30 - 49}{16}) = P(z \leq -1.1875)$

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

$P(x \leq 30) = 0.118 = 11.8\%$

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

3 0

2 years ago

What is the sqaure root of 45n^5? In Radical Form.

laila [671]

45n^(5/2) is the answer

7 0

2 years ago

Read 2 more answers

If f(x) = 9x - 2 and g(x) = 2x², what is the value of f(4) - g(4)

pishuonlain [190]

9514 1404 393

Answer:

f(4) -g(4) = 2

Step-by-step explanation:

Fill in the given values for x and do the arithmetic.

f(4) = 9·4 -2 = 34

g(4) = 2·4^2 = 32

Then ...

f(4) -g(4) = 34 -32

f(4) -g(4) = 2

6 0

2 years ago

Read 2 more answers

Linda's grandmother baked brownies on Saturday for her church's bake sale. She cut each batch of brownies into 9 large pieces. S

LiRa [457]

Answer:

C - 8

Step-by-step explanation:

153 - 81 = 72

72 ÷ 9 = 8

5 0

3 years ago

6. Find JL. 3r + 4 JL= 5.x - 16

barxatty [35]

Answer:

Step-by-step explanation:

3x+4 = 5x-16

-2x+20 = 0

-2x = -20

x = 10

3*10+4 = 5*10-10 = 34

34*2 = 68

JL = 68

8 0

2 years ago