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choli [55]
2 years ago
7

HELP ASAPPP

Mathematics
1 answer:
goldenfox [79]2 years ago
5 0

Answer:

Kai suggested the best way to produce a random sample that is not biased

Step-by-step explanation:

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50 point to the person that can answer this:
ale4655 [162]

Answer:

  • B. The constant in the expression is 1/2

Step-by-step explanation:

<u>Given formula for the area of a triangle</u>

  • A = 1/2bh

<u>Statements to confirm</u>

A. The coefficient of is b.

  • False. b is variable, 1/2 is coefficient

B. The constant in the expression is 1/2

  • True

C. There is one term in the expression.

  • False. There are 3 terms, one constant and two variables

D. There is one variable in the expression.

  • False. There are two variables, b and h

<em>Note. </em>

<em>Assumed 1/2 is given in Option B, otherwise all statements are false</em>.

7 0
3 years ago
What is the inverses​
dlinn [17]

inverse means opposite,

inverse of addition is subtraction

4 0
3 years ago
A construction firm is building a skyscraper, and the height of the skyscraper in yards and feet after certain numbers of days i
maksim [4K]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
Help me answer this question
borishaifa [10]
To find the answer you would need to add 11 to 75 and then that is 86 so then divide that by 1 and the answer is 86
7 0
3 years ago
An analyst from an energy research institute in California wishes to precisely estimate a 99% confidence interval of the average
Lena [83]

Answer:

190

Step-by-step explanation:

Data provided in the question:

Confidence level = 99%

Therefore,

α = 1% = 0.01

[ from standard normal table ]

z-value for z_{\frac{\alpha}{2}}= z_{\frac{0.01}{2}}= = 2.58

Margin of error, E = $0.06

Standard deviation, σ = $0.32

Now,

n = (\frac{z_{0.005}\sigma}{E})^2

Here,

n is the sample size (or the minimum number of gas stations  )

on substituting the respective values, we get

= (\frac{z_{0.005}\sigma}{E})^2

= (\frac{2.58\times0.32}{0.06})^2

= 13.76²

= 189.3376 ≈ 190

Hence,

minimum number of gas stations that she should include in her sample is 190

5 0
3 years ago
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