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3 years ago

Crystal reads 25 pages in 1 hour. Write an equation to represent the 2

Mathematics

1 answer:

Inessa05 [86]3 years ago

8 0

Answer:

she read 25 pages in 60 minutes

Step-by-step explanation:

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The diameter of a circle is 34 yards. What is the circle's circumference?

podryga [215]

The circumference is 106.76.
C = dπ
Circumference is diameter times pi(pi equals 3.14)
34 x 3.14 = 106.76

4 0

2 years ago

The mean cost of a five pound bag of shrimp is 40 dollars with a standard deviation of 7 dollars. If a sample of 51 bags of shri

eimsori [14]

Answer:

$P(|\bar{x}-40| > 0.6)=0.5404$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 40 dollars

Standard Deviation, σ = 7 dollars

Sample size,n = 51

We are given that the distribution of cost of shrimp is a bell shaped distribution that is a normal distribution.

Formula:

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

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{7}{\sqrt{51}} = 0.9801$

P(sample mean would differ by true mean by more than 0.6)

$P(|\bar{x}-40| > 0.6)\\\Rightarrow = 1-P(39.4$

$P(39.4 \leq x \leq 40.6) \\\\= P(\displaystyle\frac{39.4 - 40}{0.9801} \leq z \leq \displaystyle\frac{40.6-40}{0.9801})\\\\ = P(-0.6121 \leq z \leq 0.6121)\\= P(z \leq 0.6121) - P(z < -0.6121)\\= 0.7298 - 0.2702 =0.4596$

$P(|\bar{x}|-40 > 0.6)\\= 1-0.4596=0.5404$

0.5404 is the required probability.

4 0

2 years ago

Express 60 as the product of its prime factors.

nasty-shy [4]

Answer:

2^2x3x5=60

Step-by-step explanation:

7 0

3 years ago

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Please help me it would be helpful

Vitek1552 [10]

Adam has a greater rate of change, as seen by the larger slope. This means Adam is traveling faster than Katia.

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2 years ago

Rewrite the system of equations in slope-intercept form. y – 5 = –4x, 3y – 9 = –6x

AnnZ [28]

Answer:

y=-4x+5

y=-2x+3

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers