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2 years ago

I need help on this question

Mathematics

2 answers:

Marizza181 [45]2 years ago

4 0

Hexagon is the answer because it has six sides

nikklg [1K]2 years ago

3 0

Since this shape has six sides, the name of a 6-gon would be a hexagon, and I think another answer would be regular polygon.

The answers for your questions would be

Hexagon and Regular Polygon

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You randomly select a card from a 52-card deck. Find the probability of selecting a 7 or an Ace.

erik [133]

Answer:

15.38%

Step-by-step explanation:

There are 4 7's in a deck of 52 cards.

There are 4 Aces in a deck of 52 cards.

4+4 = 8

8/52, or 15.38%

6 0

3 years ago

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Estimate the answer to:<br> 341 ÷ 0.28

Snezhnost [94]

Answer:

341 ÷ 0.28=1217,85714286

Step-by-step explanation:

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2 years ago

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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

A top view sink is in the shape of a semicircle. (it's 50 inches)

lys-0071 [83]

Answer:

we are not able to answer this because you did not put answers nor a question

8 0

2 years ago

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What's the answer ????????

Sindrei [870]

No, because people who have the same age can have different zip codes.

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3 years ago