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ArbitrLikvidat [17]
3 years ago
11

Find the area of the semicircle. Round your answer to the nearest hundredth. YEAH IVE BEEN STUCK ON THIS help please I need the

steps if possible:(

Mathematics
2 answers:
guapka [62]3 years ago
8 0

Answer:

=127.23

Step-by-step explanation:

we can start of by finding the area of a <em>CIRCLE</em>

18/2=9

9=radius

area of circle= pi*r squared

9 squared=81*pi=254.4690

<em>Now we can half the area of the circle to find out the area of the semi circle as a semi circle is just half a circle therefore half the area of a circle</em>

254.469/2=127.2345

127.2345=127.23

=127.23

Hope this helped

aivan3 [116]3 years ago
7 0

Answer:

your answer will be 127.17 sq in

Step-by-step explanation:

hope it helps you

have a wonderful day!!!

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aliina [53]

Answer:

b^4 / a

Step-by-step explanation:

I have attached the explanation above. hopefully this will help

3 0
2 years ago
Find the derivative of the function f(x) = (x3 - 2x + 1)(x – 3) using the product rule.
julsineya [31]

Answer:

Step-by-step explanation:

Hello, first, let's use the product rule.

Derivative of uv is u'v + u v', so it gives:

f(x)=(x^3-2x+1)(x-3)=u(x) \cdot v(x)\\\\f'(x)=u'(x)v(x)+u(x)v'(x)\\\\ \text{ **** } u(x)=x^3-2x+1 \ \ \ so \ \ \ u'(x)=3x^2-2\\\\\text{ **** } v(x)=x-3 \ \ \ so \ \ \ v'(x)=1\\\\f'(x)=(3x^2-2)(x-3)+(x^3-2x+1)(1)\\\\f'(x)=3x^3-9x^2-2x+6 + x^3-2x+1\\\\\boxed{f'(x)=4x^3-9x^2-4x+7}

Now, we distribute the expression of f(x) and find the derivative afterwards.

f(x)=(x^3-2x+1)(x-3)\\\\=x^4-2x^2+x-3x^3+6x-4\\\\=x^4-3x^3-2x^2+7x-4 \ \ \ so\\ \\\boxed{f'(x)=4x^3-9x^2-4x+7}

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

6 0
3 years ago
What is the domain and range of f(x)=2x-5
Mrrafil [7]

f(x) is a linear function with no restrictions

Domain: x = All real numbers

Range: y = All real numbers

8 0
3 years ago
I need the side of length x and the answer should be the nearest hundredth
Firdavs [7]

Answer:

x = 15.49

Step-by-step explanation:

a2+b2=c2

11^2+x^2=19^2

121 =x^2 = 361

x^2 = 240

x = 15.49

7 0
2 years ago
Hannah purchased three items at the store for $7.05, $8.12, and $3.97. She paid for
vichka [17]

Answer:

She should receive $30.86

Step-by-step explanation:

$7.05 + $8.12 + $3.97 =19.14

50 - 19.14 = 30.86

6 0
2 years ago
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