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3 years ago

Select the correct answer.

Mathematics

2 answers:

Zigmanuir [339]3 years ago

4 0

Answer:

E. 6

Step-by-step explanation:

docker41 [41]3 years ago

3 0

Answer:

E.6, mark the guy above me brainliest, they got it right and answered first.

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hafizah harvested 49 mangoes from her farm. The weights of the mangoes, w in grams, are shown on the following frequency table

sergejj [24]

To get the answer for this problem your going to have to show us the frequency table

5 0

3 years ago

The square of a number is 12 less than 7 times the number. What is the number?

hjlf

Answer:

The number is either 3 or 4

Explanation:

Assume that the number we are looking for is x

The square of the number would be x²

7 times the number would be 7x

We are given that:

square of the number (x²) is 12 less than 7 times the number (7x)

Translating this into an equation, we would have:

x² = 7x - 12

Rearranging the quadratic equation:

x² - 7x + 12 = 0

Now, we factor the equation:

(x-4)(x-3) = 0

This means that:

either x-4 = 0 ..................> x = 4

or x-3 = 0 ........................> x = 3

Let's check if any of the solutions is an extrovert:

For x = 3 .............> (3)² = 7(3) - 12 .........> 9 = 21 - 12 .......> 9 = 9 .......> not extrovert

For x = 4 .............> (4)² = 7(4) - 12 .........> 16 = 28 - 12 .....> 16 = 16 ....> not extrovert

Since we have no restrictions on the number, therefore, both solutions would be accepted

Hope this helps :)

7 0

3 years ago

Suppose we have a population that does not follow the normal distribution. What minimum sample size we should select in order to

Pepsi [2]

Answer:

D. 30

Step-by-step explanation:

Having a population that doesn't follow normal distribution (skewed) can still have sampling distribution that is completely normal. This fact is presented in the Central Limit Theorem.

Central Limit Theorem: states that we can have a normal distribution of sample means even if the original population doesn't follow normal distribution, we just need to take a large sample.

So how much sample size do we need?

There is no straight forward answer to this rather we have to analyse the situation closely!

1. If the population distribution is already normal then a smaller sample size would be enough to ensure normal distribution.

2. If the population distribution is very skewed than a larger number of sample size is needed to ensure normal distribution. The rule of thumb is to take sample size equal to or more than 30 to be on safer side. This is the case in this problem hence option D fits the best.

5 0

4 years ago

How would I graph this 8x-5y=15?

FromTheMoon [43]

This is linear. 8x-5y=15
-5y=15-8x
Divide -5
Y=8/5x-3.
Start at -3 on y axis and go down 8 points and right 3.

8 0

3 years ago

Read 2 more answers

Was quarantined and missed this whole lesson can anyone help me?

photoshop1234 [79]

I was quarantined tooooo

4 0

3 years ago