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bearhunter [10]
2 years ago
8

Help me on this one please​

Mathematics
2 answers:
soldi70 [24.7K]2 years ago
7 0

Answer:

615.8

Step-by-step explanation:

Circle area = π * r² = π * 196 [mcm²] ≈ 615.8 [cm²]

Georgia [21]2 years ago
4 0

Answer:

Area is 616 square centimeters.

Step-by-step explanation:

<u>Area of Circle</u>

A = \pi r^2

A ... area

r ... radius

<u>Given</u>

r = 14 cm

Use formula.

A = \pi r^2

A = \pi (14 \text{ cm})^2

A = \pi (196) \text{ cm}^2

Use \frac{22}{7} for \pi, since they tell you to use that in instructions.

A = (\frac{22}{7}) (196)  \text{ cm}^2

A = 616 \text{ cm}^2

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Which of the following is equal to the rational expression when x*-2 or 3?<br> X^2 +5x+6<br> X^2-X-6
trasher [3.6K]

Answer:

Step-by-step explanation:

x=-2, x=3

---------------

x^2+5x+6=(-2)^2+5(-2)+6=(-2)(-2)-10+6=4-10+6=-6+6=0

x^2+5x+6=3^2+5(3)+6=9+15+6=24+6=30

---------------------------------------------------------------

x^2-x-6=(-2)^2-(-2)-6=4+2-6=6-6=0

x^2-x-6=3^2-3-6=9-3-6=6-6=0

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3 years ago
What is the value of the number line ​
allochka39001 [22]

Answer:

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Step-by-step explanation:

if ur greatest number is there

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3 years ago
Is the relation { (5, 2), (-1, 6), (8, -2), (5, 3)} a function? why or why not? list the domain and range
Tasya [4]

Answer:

it is not a function because the input 5 (x) has more than one output (y)

domain (5,-1,8)

range (2,6,-2,3)

Step-by-step explanation:

5 0
3 years ago
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The diameter of a quarter is 2.5 cm. What is it’s circumference?
anastassius [24]

Answer:

7.85 cm

Step-by-step explanation:

The circumference of a circle can be found using the following formula.

c=\pi d

The diameter is 2.5 centimeters. Therefore, we can substitute 2.5 cm in for d.

c=\pi *2.5 cm

Now, find the circumference.

- In terms of pi:

c=\pi *2.5 cm

c= (2.5)\pi  cm

c= 2.5\pi  cm

-Using 3.14 as pi

c=\pi *2.5 cm

c=3.14 *2.5 cm

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