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3 years ago

Can someone help me out pls

Mathematics

1 answer:

lozanna [386]3 years ago

6 0

Answer:

Step-by-step explanation:

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A circular plate has circumference 21.4 inches. What is the area of this plate? Use 3.14 for pi.

Brut [27]

Answer:

The area of this plate is $36.31\ \text{inches}^2$ .

Step-by-step explanation:

We have,

Circumference of a circular plate, C = 21.4 inches

The circumference of a circular shape is given by :

$C=2\pi r$

r is radius of circular shape

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{21.4}{2\times 3.14}\\\\r=3.4\ \text{inches}$

Area of this plate is given by :

$A=\pi r^2\\\\A=\pi (3.4)^2\\\\A=36.31\ \text{inches}^2$

So, the area of this plate is $36.31\ \text{inches}^2$ .

8 0

3 years ago

How many derangements of {1, 2, 3, 4, 5, 6} begin with the integers 1, 2, and 3, in some order?

iragen [17]

Answer:

Total derangement = 4

Step-by-step explanation:

To find - How many derangement of {1, 2, 3, 4, 5, 6} begin with the integers 1, 2, and 3, in some order?

Solution -

Given that,

The first three numbers are 1, 2, 3

The only derangement possible are - 231 and 312

Now,

The remaining elements 4, 5, 6 are the 4th, 5th and 6th number in the derangement

Now,

In order for the permutation of the derangement, the only possibility for 123 are 564 and 645

∴ we get

The Total derangement are -

231564

231645

312564

312645

So,

Total derangement = 4

8 0

3 years ago

Which statement describes the graph of f(x)=Lx]-2 on [0, 3)?

lakkis [162]

I think it’s the second one I’m not sure :/

5 0

3 years ago

Read 2 more answers

60% of the votes are counted, candidate A is leading by

OLEGan [10]

Answer:

B must have (at most) 40% of the votes. (if more are counted that are for A this will not be true

Step-by-step explanation:

4 0

3 years ago

We measure the strength of the link between two statistical variables using the correlation coefficient. Here are the values of

ira [324]

Answer:

B) 0.9, 0.45, -0.77, -0.95

Explanation:

The correlation coefficient is a statistical measure that indicates the strength of the relationship between two variables. The value usually ranges from -1 to 1 where:

• 1 indicates a strong positive relationship.

• -1 indicates a strong negative relationship.

• A result of 0 indicates no relationship at all.

Therefore, the given correlation coefficients classified from the strongest to the weakest is:

$0.9,0.45,-0.77\text{ and -0.95}$

The correct choice is B.

5 0

2 years ago