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2 years ago

If the circumference of a circle measures 3/2TT cm, what is the area of the circle in terms of TT?

Mathematics

2 answers:

diamong [38]2 years ago

7 0

Answer:

A = pi 9/16 cm^2

Step-by-step explanation:

The circumference is 3/2 pi

The circumference is given by

C = 2 * pi *r

3/2 pi = 2 * pi *r

Divide each side by 2 *pi

3/2 pi / 2 pi = 2 pi r /2pi

3/4 cm = r

Now we can find the area

A = pi r^2

A = pi ( 3/4) ^2

A = pi 9/16 cm^2

Rufina [12.5K]2 years ago

4 0

Answer:

d) 9/16π cm²

Step-by-step explanation:

Circumference = 3/2π cm

diameter = 3/2 cm

radius = 3/2 ÷ 2 = 3/4 cm

area = π(3/4)² = 9/16 π cm²

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2 years ago

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gladu [14]

Answer:

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Step-by-step explanation:

Given

$P(A) = \frac{1}{4}$

$P(B) = \frac{3}{5}$

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Mutually exclusive are defined by:

$P(A\ or\ B) = P(A) + P(B)$

So, we have:

$P(A\ or\ B) = \frac{1}{4} + \frac{3}{5}$

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$P(A\ or\ B) = \frac{5+12}{20}$

$P(A\ or\ B) = \frac{17}{20}$

By comparing:

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$\frac{17}{20} \ne \frac{7}{10}$

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2 years ago

Y is directly related to x and y is 81 when x is 27 the constant of.variation is

suter [353]

Answer:

The constant of variation is 3

Step-by-step explanation:

Given.

$y=81$

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And y is directly related to x

$y$ ∝ $x$

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$y=kx$

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Put the $y$ and $x$ value in equation 1.

$k=\frac{81}{27}$

$k=3$

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