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4 years ago

11

A regular regular pentagon has an apothem measuring 3 cm and a perimeter of 21.8 cm. What is the area of the pentagon, rounded t

o the nearest tenth?

2 answers:

Vika [28.1K]4 years ago

5 0

Answer:

32.7

Step-by-step explanation:

lana [24]4 years ago

3 0

Answer:

The area of the pentagon is 32.7 cm.

Step-by-step explanation:

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Giving/rewarding brainly for correct answer

devlian [24]

Answer:

8516 meters

Step-by-step explanation:

8 0

3 years ago

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A container holds 8 gallons of water. It begins leaking at a constant rate. After 16 minutes the container has 6 gallons of wate

tangare [24]

In that 16 minutes, the amount that leaks out is (8 - 6) = 2 gallons.

The average unit rate of the leak is

(2 gal)/(16 min) = (2/16) (gal/min) = 1/8 gal/min

= 16 fluid ounce per min

= 4/15 fl oz per second

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3 years ago

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PLZ HELP ALGEBRA 2 WILL GIVE BRAINLIEST 20 POINTS

galben [10]

Question 1

It won't be completely simplified, because 8 can be factored further, so I would say the answer is "no"

A much better factorization would be
sqrt(72) = sqrt(36*2)
since 36 is the largest perfect square factor of 72

If you're curious how it simplifies, then it would do so like this
sqrt(72) = sqrt(36*2)
sqrt(72) = sqrt(36)*sqrt(2)
sqrt(72) = 6*sqrt(2)

Note: "sqrt" is shorthand for "square root"

==============================================

Question 2

For monomials like this, we simply cut the exponent in half, or we divide by 2.

28/2 = 14

Therefore, sqrt(x^28) = x^14

The given expression simplifies to x^14

3 0

3 years ago

The sum of two numbers is 20

Otrada [13]

Answer:

larger number: 13

smaller number: 7

Step-by-step explanation:

hope this helps! :)

3 0

3 years ago

Someone just answer this math question thingie lol. you’ll get 33 points G

Stels [109]

1) $(-2x+4)+(x-6)$ is simplified into $=-x-2$

2) $(uv-3)+(4uv+1)$ is simplified into $5uv-2\\$

3) $(11x-8)-(2x+3)$ is simplified into $-9x-11$

4) $(x^2-4)-(x-2)$ is simplified into $x^2-x-2$

5) $(12-3t-7t^2)+(1+3t-t^2)$ is simplified into $-8t^2+13$

Step-by-step explanation:

We need to solve the polynomials.

1) $(-2x+4)+(x-6)$

Solving:

$(-2x+4)+(x-6)\\=-2x+4+x-6\\Combining\,\,like\,\,terms:\\=-2x+x+4-6\\=-x-2$

So, $(-2x+4)+(x-6)$ is simplified into $=-x-2$

2) $(uv-3)+(4uv+1)$

Solving:

$(uv-3)+(4uv+1)$

Expanding:

$=uv-3+4uv+1\\Combining\,\,like\,\,terms:\\=uv+4uv-3+1\\=5uv-2\\$

So, $(uv-3)+(4uv+1)$ is simplified into $5uv-2\\$

3) $(11x-8)-(2x+3)$

Solving:

$(11x-8)-(2x+3)$

Expanding:

$=11x-8-2x-3\\Combining\,\,like\,\,terms:\,\,\\=11x-2x-8-3\\=-9x-11$

So, $(11x-8)-(2x+3)$ is simplified into $-9x-11$

4) $(x^2-4)-(x-2)$

Solving:

$(x^2-4)-(x-2)$

Expanding:

$=x^2-4-x+2\\Combining\,\,like\,\,terms:\\=x^2-x-4+2\\=x^2-x-2$

SO, $(x^2-4)-(x-2)$ is simplified into $x^2-x-2$

5) $(12-3t-7t^2)+(1+3t-t^2)$

Solving:

$(12-3t-7t^2)+(1+3t-t^2)$

Expanding:

$=12-3t-7t^2+1+3t-t^2\\Combining\,\,like\,\,terms:\\=12+1-3t+3t-7t^2-t^2\\=13+0t-8t^2\\=-8t^2+13$

So, $(12-3t-7t^2)+(1+3t-t^2)$ is simplified into $-8t^2+13$

Keywords: Solving Polynomials

Learn more about solving Polynomials at:

#learnwithBrainly

5 0

3 years ago

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