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3 years ago

The circumference of a circle is approximately 39.25 mm. What is the length of the diameter?

Mathematics

1 answer:

melomori [17]3 years ago

6 0

Answer:

<h2>12.5 millimeters (mm).</h2>

Step-by-step explanation:

Explain/define:

CIRCUMFERENCE: THE DISTANCE AROUND A CIRCLE.

DIAMETER: THE LENGTH OF A STRAIGHT LINE THROUGH THE CENTER OF A CIRCLE.

Mathematics: Formula

$d=c/3.14$

$d-diameter$

$c-circumference$

Mathematics: Solve

To find the length of the diameter from the circumference, divide the circumference by pi. The quotient is the diameter.

3.14 is often used for pi.

$39.25/3.14=12.5.$

Conclude:

Therefore, the length of the diameter of the circle is 12.5 millimeters (mm).

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Step-by-step explanation:

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2 years ago

Simplify the polynomial. Then find its value for the given value of the variable.

vekshin1

Answer:

Step-by-step explanation:

Simplified expression:

$3x^3 -x^3 +5x^3-9x^3$

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If x = -1, the value of the expression is:

$-2x^3$

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Hope this helps!

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3 years ago

Determine the surface area of this cone if the radius is 4 cm and the height is 12 cm . Round your answer to the nearest tenth .

maria [59]

Base Surface Area = π×42
= 50.265482457437 inches2
Lateral Surface Area = π×4×√42 + 4.72440944881892
= 77.789838023204 inches2
Total Surface Area = 128.05532048064 inches2

Or in square centimeters:

Base Surface Area = π×10.162
= 324.2927866224 centimeters2
Lateral Surface Area = π×10.16×√10.162 + 122
= 501.8689189905 centimeters2
Total Surface Area = 826.1617056129 centimeters2

8 0

3 years ago

What decimal is equivalent to 15 198/200?

IrinaK [193]

It's equivalent to 75.99

8 0

4 years ago

Help. Will give brainliest :)

aleksandrvk [35]

Answer:

18 inches!

Step-by-step explanation:

Since you are multiplying the original size by 3 times (4 in. originally • 3 = 12 inches) you just multiple the original height by 3 (6•3=18)

hope this helped!

7 0

3 years ago