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kow [346]
3 years ago
13

Sirgeo wants to fence in a circular portion of his backyard for a place space for his dog. Determine the area of the largest por

tion of the yard he can close with 72 feet of fencing use 3.14 for pi
Mathematics
1 answer:
pickupchik [31]3 years ago
4 0

Answer:

  412.7 square feet

Step-by-step explanation:

A circle of circumference 72 ft will have a radius given by ...

  C = 2πr

  (72 ft) = 2(3.14)r

  r = (72 ft)/(6.28) ≈ 11.465 ft

The area of a circle with that radius is ...

  A = πr² = 3.14(11.465 ft)² ≈ 412.7 ft²

Sirgeo can enclose a circular area of about 412.7 square feet with 72 feet of fence.

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Answer:

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Step-by-step explanation:

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3 years ago
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The circumference of one coin is 8.03cm. The circumference of another coin is 0.33cm smaller. A.) what is the first step to find
Burka [1]

Answer:

Diameter of the smaller coin = 2.46 cm

Step-by-step explanation:

Circumference of a coin = 2πr

Circumference of coin A = 8.03 cm

Circumference of coin B = 8.03 cm - 0.33 cm

A.) what is the first step to find the diameter of the smaller coin?

Find the circumference of coin B

Circumference of coin B = 8.03 cm - 0.33 cm

= 7.7 cm

B.) Find the diameter of the smaller coin.

Circumference of a coin = 2πr

7.7 = 2 × 3.14 * r

7.7 = 6.28r

r = 7.7 / 6.28

r = 1.23 cm

Diameter = 2r

= 2 * 1.23 cm

= 2.46 cm

Diameter of the smaller coin = 2.46 cm

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3 years ago
4 x ((-4)= (-2) - (-3) + (-6))
sergij07 [2.7K]

Answer:

x=5/16

Step-by-step explanation:

Let's solve your equation step-by-step.

4x(−4)=−2−(−3)−6

Step 1: Simplify both sides of the equation.

4x(−4)=−2−(−3)−6

−16x=−2+3+−6

−16x=(−2+3+−6)(Combine Like Terms)

−16x=−5

−16x=−5

Step 2: Divide both sides by -16.

−16x

−16

=−5/−16

x=5/16

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3 years ago
What is x2-12x+36 factored
svetoff [14.1K]

How to get answer by Mimiwhatsup:

x^2-12x+36\\Break\:the\:expression\:into\:groups\\=\left(x^2-6x\right)+\left(-6x+36\right)\\\mathrm{Factor\:out\:}x\mathrm{\:from\:}x^2-6x\mathrm{:\quad }x\left(x-6\right)\\\mathrm{Factor\:out\:}-6\mathrm{\:from\:}-6x+36\mathrm{:\quad }-6\left(x-6\right)\\=x\left(x-6\right)-6\left(x-6\right)\\\mathrm{Factor\:out\:common\:term\:}\left(x-6\right)\\=\left(x-6\right)\left(x-6\right)\\Refine\\Answer: \left(x-6\right)^2

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