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3 years ago

If the radius of a circle is 16 units, what is its area? (Use pie for it)

Mathematics

2 answers:

kobusy [5.1K]3 years ago

7 0

So the right answer is 804.57 units^2.

Look at the attached picture

Hope it will help you

Good luck on your assignment

krok68 [10]3 years ago

3 0

Answer:

$804.25unit^2$

Step-by-step explanation:

$A=\pi r^2\\=\pi 16^2\\=804.25unit^2$

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A boat sails 20 miles wast of the port and then 15 miles south to an island how far is the boat from the port if you measure thr

sweet-ann [11.9K]

Answer:

25 miles

Step-by-step explanation:

Given: A boat sail 20 miles west of the port and then 15 miles south to an island.

Picture attached.

The distance from port to island could be measured in a straight line. It will form a hypotenous.

∴ we can use Pythogorean theorem to find the distance.

$h^{2} = a^{2} +b^{2}$

Where, "a" is adjacent= 20 miles and "b" is opposite= 15 miles.

$h^{2} = 20^{2} +15^{2}$

⇒ $h^{2} = 400+225= 625$

⇒ $h^{2} = 625$

⇒ $h= \sqrt{625}= \sqrt{25^{2} }$

We know $\sqrt{x^{2} } = x$ .

∴ $h= 25\ miles$

∴ Distance of Port from the Island is 25 miles.

6 0

4 years ago

Are these two functions inverse of each other? 3 g(x) + = 4x + 3 and f(x) = -x f(x) = -~- 4 Ο Νο O Yes

Art [367]

Answer:

Yes!

Step-by-step explanation:

3 0

4 years ago

Solve the system of equations y=5x-1 y=9x-9

Leto [7]

Answer:

Look at the equations:

−

and

Because both equations equal (y), they both equal the same.

If an equations says "

−

" , that means we can replace (y) with

−

Therefore when i take the equation:

, we can replace (y) to get:

−

Now isolate (x):

−

⇔

−

⇔

−

⇔

−

7 0

2 years ago

$32 earrings marked up 20% ,,, I need explanation on how to figure out??

Ludmilka [50]

32*1.2=38.4 (.2 is the 20%, and the 1 adds the percent to the original cost making it a mark up)

5 0

3 years ago

Can anyone help me please? It’s urgent. Worth 20 points!

Arturiano [62]

6% chance he is certified
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60% chance

If you do them out of 100%

6 0

4 years ago