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3 years ago

Expand the exponents, simplify, then write the rule.

Mathematics

1 answer:

worty [1.4K]3 years ago

5 0

3) if base are same power are added

4) power is multiplied

5) in division, if base are equal power is subtracted

6) we can write whole power if two bases have same power

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I would like to know the cost of c

Evgen [1.6K]

Answer:

1..75c

Step-by-step explanation:

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2 years ago

Find the distance between points P(4,6) and Q(8,9) to the nearest tenth

Minchanka [31]

take square root and subtract y2 from y1 and x2 from x1

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3 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

3 years ago

Solve pls brainliest

Serhud [2]

Answer:

1:none

2:c

3:b

4:a

Step-by-step explanation:

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2 years ago

Read 2 more answers

Which fraction is not equivalent to 5/6? A-15/18 B-20/30 C-10/12 D-30/36

ss7ja [257]

Answer: B. 20/30

Step-by-step explanation: 20/30 simplified to 2/3. Multiply each number by 2 to get 4/6. 4/6 is not the same number as 5/6.

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3 years ago