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3 years ago

I need help please.

Mathematics

1 answer:

jeka57 [31]3 years ago

5 0

We are trying to represent the change in position of a bird flying down 7 ft to the ground.

Often, for the y axis- up is positive and down is negative.

Change in position is displacement- how far it was from the starting point

( different from distance which is how far is traveled

ex. doubling back would have distance they traveled some distance while the displacement is 0 because they are back to where they started).

The bird is going down 7 ft from where it originally was, which can be represented by

Bird's displacement = -7 ft

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There is a pond on my property that Wildlife and Fisheries stocks. From information provided to me, I can expect my fish populat

LenaWriter [7]

An exponential function can either represent growth or decay

The initial value is 200 and the growth factor is 1.190
The number of fish in the pond after 5 years is 436

<u>(a) The initial number of fish and the growth factor</u>

The function is given as:

$P(t) = 200 \times 2^{t/4}$

An exponential function is represented as:

$P(t) = ab^t$

Where

a represents the initial value
b represents the growth factor

So, by comparison: the initial value is 200

The growth factor is then calculated as:

$b = 2^{1/4}$

$b = 1.190$

Hence, the initial value is 200 and the growth factor is 1.190

<u>(b) The number of fish after 5 years</u>

This means that t = 5.

So, we have:

$P(t) = 200 \times 2^{t/4}$

$P(5) = 200 \times 2^{5/4}$

$P(5) = 200 \times 2^{1.125}$

$P(5) = 436$

Hence, the number of fish in the pond after 5 years is 436

Read more about exponential functions at:

brainly.com/question/11464095

8 0

3 years ago

Which shows 4 /5 written as a division expression?

pentagon [3]

Answer:

0.8

Step-by-step explanation:

4/5 is 0.8 as a divison expression.

7 0

3 years ago

Read 2 more answers

Supone que un satélite tarda 86.54 minutos en dar una vuelta alrededor de la tierra

LekaFEV [45]

It assumes that a satellite takes 86.54 minutes to go around the earth

6 0

3 years ago

14. A boy is standing on the top of a tower, observed that the angle of depression of a car on the horizontal ground is 60". On

qaws [65]

The height of the tower is 331.3 meters

The distance from the car to the foot of the tower is 191.3 meters

The situation forms a right angle triangle.

<h3>Right angle triangle:</h3>

Right angle triangle has one of its angles as 90 degrees. Therefore,

The height of the tower is the opposite side of the right angle triangle. The distance from the foot of the tower to the car is the adjacent side of the triangle formed.

Therefore, the following trigonometric can be formed from the relationship.

let

x = adjacent side = distance from the foot of the tower to the car.

Therefore,

$x=\frac{140 + h}{tan60}=\frac{h}{tan45}$

cross multiply,

(140 + h)(tan 45) = h tan 60

140 tan 45 + h tan 45 = h tan 60

140 tan 45 = h tan 60 - h tan 45

140 = h√3 - h

140 = 1.732h - h

140 = 0.732h

h = 140 / 0.732

h = 191.256830601

h = 191.3

Therefore,

height of the tower = 140 + 191.3 = 331.3

The distance from the car to the foot of the tower is as follows;

x = 191.3 / tan 45

x = 191.3 / 1

x = 191.3

Therefore, the distance from the car to the foot of the tower is 191.3 meters

learn more on right triangle here; brainly.com/question/26750565?referrer=searchResults

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3 years ago

Jason takes two centimeters in medicine how many milliliters is it

natali 33 [55]

The answer is 20 millimeters. 1cm equals 10mm, so 2cm would equal 20mm.

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3 years ago