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3 years ago

10

I give a medal if you can figure this out fast! A certain forest covers an area of 4200 km2 . Suppose that each year this area d

ecreases by 8.5% . What will the area be after 8 years?

2 answers:

Mars2501 [29]3 years ago

8 0

The answer would be 525 kilometers2

oee [108]3 years ago

7 0

<span>1541.213 square km would be correct

</span>

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The speed of radio waves can be approximated to be 299,790,000 meters per second. The wavelength of a particular radio station’s

azamat

Answer:

$f = \frac{299790000 \frac{m}{s}}{3.03 m}= 9890594.06 Hz$

And if we convert to megahertz we got:

$9890594.06 Hz *\frac{1MHz}{10^6 Hz}= 98.9 MHz$

Step-by-step explanation:

For any mechanical wave we have the following general relationship:

$v = \lambda f$

where:

v represent the speed of the wave = 299790000 m/s

$\lambda = 3.03m$ represent the wavelength for the radio station

f represent the frequency of interest

If we solve for the frequency we got:

$f = \frac{v}{\lambda}$

And replacing the values we got:

$f = \frac{299790000 \frac{m}{s}}{3.03 m}= 9890594.06 Hz$

And if we convert to megahertz we got:

$9890594.06 Hz *\frac{1MHz}{10^6 Hz}= 98.9 MHz$

6 0

3 years ago

Whats the second smallest number that has 1,2,3,4,5 as factors and its special name for it?

denis23 [38]

12345 factor is 120

hope its work

8 0

3 years ago

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Caroline bought movie tickets for three Children and a bucket of popcorn for $9.50. If she spent a total of $35.75, how much was

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Answer:

$8.08

Step-by-step explanation:

First subtract 9.50 from 35.75 to get

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Then divide 24.25 by 3 to get

Approx $8.08

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3 years ago

What is the range of the function {(0, 15), (4, 6), (6, 4), (8, 0)}?

lana66690 [7]

The range of a function is the set of output values of the function

The range of the function is: {15, 6, 4, 0}

<h3>How to determine the range</h3>

The function is defined as:

(x,y) = {(0, 15), (4, 6), (6, 4), (8, 0)}

The range is the y-values.

So, we have:

y = {15, 6, 4, 0}

Hence, the range of the function is: {15, 6, 4, 0}

Read more about range at:

brainly.com/question/1770447

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2 years ago

Suppose you buy a CD for $300 that earns 3% APR and is compounded quarterly. The CD matures in 3 years. How much will this CD be

andrew-mc [135]

Given: Principal Amount (P) = $300

The rate of interest (r) = (3/4) compounded quarterly.

No. quarters in 3 years (n) = 3×4 = 12

To find: The amount for the CD on maturity. Let it will be (A)

Formula: Compound Amount (A) = P [ 1 + (r ÷100)]ⁿ

Now, (A) = P [ 1 + (r ÷100)]ⁿ

or, = $300 [ 1 + (3 ÷400)]¹²

or, = $300 × [ 403 ÷ 400]¹²

or, = $300 × 1.0938069

or, = $ 328.14

Hence, the correct option will be C. $328.14

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3 years ago

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