A circle has an area of 616 square meters. Which measurement is closest to the radius of the circle, in meters?

Mathematics

1 answer:

olganol [36]4 years ago

4 0

Answer:

C is the answer.

Step-by-step explanation:

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For argument's sake let's say that the odds of seeing a black cat are 25% every day. You've not seen one for the past three days

vovikov84 [41]

<h2>Answer:</h2><h2>The chance is 100 % since we have not seen it in the past three days.</h2>

Step-by-step explanation:

The odds of seeing a black cat are 25% every day.

It also means that the possibility of seeing a black cat is once in 4 days, since 25%

Given, we have not seen one black cat in 3 days.

The chance of seeing a black cat on the 4th day = ?

= 100 % since we have not seen it in the past three days.

3 0

4 years ago

How do I use the following cosine equation to get the Sinusoid Max & Min Times (x values), and Sinusoid Max and Min Values (

Paraphin [41]

9514 1404 393

Answer:

maximum: (x, y) = (12.4n+3.2, 186.322)
minimum: (x, y) = (12.4n+9.4, 163.498)

Step-by-step explanation:

You know that cos(α) is a maximum at α=0, 2π, 4π, and all even multiples of π. You know cos(α) is a minimum for α=π, 3π, 5π, and all odd multiples of π.

You can find your value of x at which y will be a maximum by setting the argument of the cosine function equal to zero (and/or 2nπ). If we use α=2nπ, then we have ...

α = (5π/31)(x -3.2) = 2nπ

(x -3.2) = (31/5)(2n) = 12.4n

Tidal maxima will occur at ...

x = 12.4n +3.2 . . . . . for integer values of n

Without bothering to go through the solution for α being odd multiples of π, we can see from this that the period is 12.4 hours. We know the tidal minimum will be half a period later, or 6.2 hours later than this.

Tidal minima will occur at ...

x = 12.4n +9.4 . . . . for integers n

Of course, cos(α) has extremes of ±1, so your tidal maximum will be ...

y = 11.412 +174.91 = 186.322

and your tidal minimum will be ...

y = -11.412 +174.91 = 163.498