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elena-s [515]
3 years ago
13

Calculo el area del búmeran tomando en cuenta que su diámetro es 20 cm

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:

50π cm²

Step-by-step explanation:

In this case we have that the area of the boomerang has been the area of the largest semicircle minus the area of the smaller semicircles.

We know that the radius is half the diameter:

r = d / 2 = 20/2

r = 10

Now we have to:

Alargest = π · r²

Alargest = π · (10 cm) ²

Alargest = 100π cm²

Asmaller = π · r²

Asmaller = π · (5 cm) ²

Asmaller = 25π cm²

Finally, the boomerang area has been:

Aboomerang = 100π cm² - 2 · (25π cm²)

Aboomerang = 50π cm²

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mihalych1998 [28]

Answer:

1.8 represents the initial number of the club members in hundreds.

Step-by-step explanation:

* Lets revise the exponential grows

- If a quantity grows by a fixed percent at regular intervals,

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- The function of the exponential growth is:

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# a = initial value (the amount before measuring growth)

# r = growth rate (most often represented as a percentage and

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* Now Lets study the problem to solve it

- The club's total number of members will grow exponentially

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- The expression to model the number of club members, in

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# a = 1.8 ⇒ initial number of members in hundreds

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# x = 12t ⇒ number of time intervals

* 1.8 represents the initial number of the club members in hundreds.

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3 years ago
Help fast!! What is the exact volume of the cylinder? <br> 36 <br> 324<br> 54<br> 18 in
xxMikexx [17]

Answer:

V = 54 pi in ^3

Step-by-step explanation:

The volume of a cylinder is given by

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V = pi (3)^2 * 6

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If 3t=5t-8 evaluate -4t+5
Sergio [31]

3t = 5t - 8

-2t = -8

t = 4

Now put that into -4t + 5:

-4t + 5

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3 years ago
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sladkih [1.3K]

Step-by-step explanation:

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  • Now let us plug in the value of x=-3
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1 year ago
2. Making sure your calculator is in DEGREE MODE, evaluate each of the following an
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Answer:

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