# Will reward brainliest

Answer: The answer is C because 10/x = tan20° and then just rearrange it so that x = 10/tan20°

## Related Questions

Suppose that poaching reduces the population of an endangered animal by 8​% per year. Further suppose that when the population of this animal falls below 70​, its extinction is inevitable​ (owing to the lack of reproductive options without severe​ in-breeding). If the current population of the animal is 1400​, when will it face​ extinction?

Step-by-step explanation:

Here, the current population of the animal is 1400​,

And, the  population of an endangered animal by 8​% per year.

Also, Further suppose that when the population of this animal falls below 70​, its extinction is inevitable​.

Let after x years the population of animal falls below 70,

Therefore,

x>35.9279739462

Thus, after 36 years( Approx) the population of the animal will be fall towards 70.

The Question involves calculating the time it will take for an endangered animal's population to fall to a level that ensures extinction using the concept of Mathematical Exponential decay. Set up the exponential decay formula, substitute the given values, and solve for time.

### Explanation:

The situation described in the question is an example of exponential decay, a concept in mathematics where a quantity decreases at a rate proportional to its current value. In this case, the animal's species population is decreasing by 8​% per year.

To find the time it takes until the endangered animal's population falls below 70 and faces extinction, we need to set up the decay formula:

Where:

P0 is the initial population (1400 in this instance),

r is the rate of decrease (0.08 as 8% in this instance),

P is the predicted population (70 in this instance), and

t is the time in years that we're trying to solve for.

Solving this equation for t, we get:

t = log(P/P0) / log(1 - r)

Substitute the variables with our values, then compute to find the approximate time when the animal's population is expected to fall below 70.

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4. Name the set(s) of numbers for the real number given below. 7 1.irrational 2.rational 3.integer 4.whole numberI NEED HELP ASAP!!

2.rational 3.integer 4.whole number

Step-by-step explanation:

The number 7 is all three of these.

2.Rational 3.Integer

Now Steve, you can tap these into your calculator one by one,
get all the quotients, and mark the ones that are 4.2, all in about
3 minutes.

There are three (3) of them in the list.

One of them is 'C'.          27.3  ÷  6.5  =  4.2

Now pick up your calculator and find the other two.  You can do it !
happy to help if you want tag me for any other questions you may need help on

If y is 12 when x is 5, find x when y is 30

We have no idea how 'x' responds to changes in 'y'.
We don't even know their units, to make a guess with.

-- If 'x' and 'y' are the ages of two people, then when y = 30, 'x' will be  23.

-- If they are the frequency and wavelength of a wave on the lake,
then when y = 30, 'x' will be  2 .

-- If 'x' is the weight of a rock in your front yard and 'y' is the number of pages
in today's newspaper, then 'y' has no effect on 'x'.  No matter what happens
to 'y' . . . 'x' will always be  5 .

With the information given in the question, we just don't know.

We need either an equation, or else one more example.

5) Rolanda scored 20, 15and 16 on hefirst three mathquizzes. Jetta scored 16, 19and17 on her quizzes Usingthe mean to compare, whohas the higher math quizscores so far?

To find mean/average it's fairly simple!! :)

The first thing you should do is add up the first numbers -
* 20 + 15 + 16 = 51 :)
* 16 + 19 + 17 = 52

Now divide each of the scores by the amount of numbers there is -
* 20 (1) 15 (2) 16 (3)
* 16 (1) 19 (2) 17 (3)

51 ÷ 3 = 17 (Rolanda's Average Score)
- Which # is bigger?
52 ÷ 3 = 17.3 (Jetta's Average Score)
First, whats the defintion of mean? Ill tell you:)
Mean: The mean is the average of the numbers; a calculated (central) value of a set of numbers.
How to find it? We add all of the scores together and then divide them by the number of scores.

So first lets work on Rolanda's Mean.
They gave us the numbers 20, 15, and 16

20 + 15 + 16 = 51

2nd. Divide by 3 since their are 3 test scores
51
÷ 3 = 17
So rolanda's mean is 17!

Now lets work on Jetta's mean.
They gave us the numbers 16, 19, and 17

16 + 19 + 17 = 52

2nd. Divide by 3 since their are 3 test scores.
52
÷ 3 = 17.333333333333333
So jetta's mean is 17.333333333333333

Now lets compare:)
Rolanda's mean = 17
Jetta's mean = 17.33333333333333333

Obviously, whos is bigger?
Jetta's Mean is bigger :)

Hope this helps!
and don't forget 2
MARK ME BRAINLIEST!
=)

Ac and bd are perpendicular bisectors of each other. find the perimeter of ADE