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AlekseyPX
2 years ago
14

Can someone pls help for brainlest

Mathematics
2 answers:
nalin [4]2 years ago
8 0

Answer:

Step-by-step explanation:

If the diameter of the semicircle is 6, then its radius is 3. The formula we use for this is the area of a circle divided in half, or:

A=\frac{\pi r^2}{2} using 3.14 for pi, as instructed.

A=\frac{(3.14)(3)^2}{2} and

A=\frac{(3.14)(9)}{2} and

A=\frac{28.26}{2} so

A = 14.13 square cm

FromTheMoon [43]2 years ago
7 0

We know that, Area of circle is given by : π × radius²

Semicircle is exactly half of a circle. So, Area of semicircle should be half of the area of a circle.

\implies \sf{Area \ of \ a \ Semicircle = \dfrac{\pi \times (radius)^2}{2}}

Given : Diameter of the semicircle is 6 cm

We know that, Radius is half of the Diameter

So, Radius of the Semicircle : 3 cm

\implies \sf{Area \ of \ the \ given \ Semicircle = \dfrac{\pi \times (3)^2}{2}}

\implies \sf{Area \ of \ the \ given \ Semicircle = \dfrac{3.14 \times 9}{2}}

\implies \sf{Area \ of \ the \ given \ Semicircle = (3.14 \times 4.5)}

\implies \sf{Area \ of \ the \ given \ Semicircle = 14.13 \ square \ centimeters}

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Step-by-step explanation:


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7 0
3 years ago
Read 2 more answers
Please help me! I'm spending 50 points on this question and my last two questions never even got answered!
Verdich [7]

Answer:

C.

Step-by-step explanation:

Domain is only affected if certain values can make the result something that either doesn't make sense or is an error. In your situation, it wants you to find the domain of f/g, which is a fraction. The only rule we have for fractions regarding domain is that we simply can't divide by zero, to find the domain for any fraction with variables in the denominator, what I do is take the denominator, set it equal to 0, and solve for x.

So, if we're taking f/g, we have:

\frac{3x^2 + x^4 + 2}{4x - 3}

4x - 3 makes up our denominator, the bottom part of the fraction. So

4x - 3 = 0

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(For future problems, the only thing to look out for is if your numerator, the top part of the fraction, factors into something that cancels with the bottom. In that case, it wouldn't affect domain because you aren't actually dividing by anything. For example:

\frac{x^2 - 4}{x-2}

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3 years ago
Find YW. YW = _<br><br> I just need the answer for YW no explanation needed.
KATRIN_1 [288]

Answer:

YW=20\ units

Step-by-step explanation:

we know that

In a parallelogram the diagonals bisect each other

The figure XYZW is a parallelogram

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<em>Find the value of b</em>

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YW=5b+b+8

substitute the value of b

YW=6(2)+8=20\ units

8 0
3 years ago
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