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forsale [732]
3 years ago
6

Please answer my question correctly.Nonsense/Plagiarized = Report​

Mathematics
2 answers:
timurjin [86]3 years ago
6 0
So the circumference of a circle is C=2 times pi times the radius. in this case it would be C= 2(pi)(4) which is 25.1 :)
GrogVix [38]3 years ago
3 0
<h2><u>Problem</u>:-</h2>

Find the perimeter or circumference and area of each figure. Round to the nearest tenth.

<h2><u>Solution</u>:-</h2>

The circumference of a circle with radius r is given by C = 2πr. The radius of the circle is 4 in.

Substitute 4 for r.

\sf{C=2πr}

\sf{ \:  \:  \:  \: =2π(4)}

\sf{ \:  \:  \:  \: ≈{\color{darkviolet}{25.1}}}

<h3><u>Answer</u>:-</h3>

The circumference of the circle is about 25.1 in.

<h2>======================</h2>

The area of a circle with radius r is given by A = πr².

Substitute 4 for r.

\sf{A = πr²}

\sf{ \:  \:  \:  \: = π(4)²}

\sf{ \:  \:  \:  \: ≈{\color{magenta}{50.3}}}

<h3><u>Answer</u>:-</h3>

The area of the circle is about 50.3 in².

<h2>======================</h2>

#Hope it helps!

(ノ^_^)ノ

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Basile [38]

Answer:

2y(-2y3 + 3y2 + 4y - 1)

Step-by-step explanation:

They all have 2y

2y(-2y3 + 3y2 + 4y - 1)

3 0
2 years ago
What is the domain and range? Is the relation a function? Explain why or why not.
S_A_V [24]

Answer:

Domain={{\bf 8.4 , 6.5 , -3}} and Range={{\bf 3.8 , -2.6 , 6}}

Step-by-step explanation:

Let f(x) be the given function

Function:

Function can be defined as "A special relationship where each input has a single output".

It is often written as "f(x)" where x is the input value.

Domain:

The domain of a function is the complete set of possible values of the independent variable.

Range:

The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain.

Function is the set of all ordered pairs of   domain and range. It can be written as

f(x)={{(a,b),(c,d),...}} where {a,b,...} are domain and {b,d,...} are range

Given the ordered pairs of domain and range {(8.4,3.8),(6.5,-2.6),(-3,6)} where {8.4,6.5,-3} are domain and {3.8,-2.6,6} are range.

ie, Domain ={8.4 , 6.5 , -3} and Range ={3.8 , -2.6 , 6}

8 0
4 years ago
Solve the following problem. Round the one decimal place if necssary.
dmitriy555 [2]

Cosθ = adjacent / hypotenuse

\cos(47)  =  \frac{28}{x}  \\ 0.68 =  \frac{28}{x}  \\ x =  \frac{28}{0.68}  \\ x = 41.1 \\ x = 41

I hope I helped you^_^

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3 years ago
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Answer:

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# be careful#

3 0
2 years ago
Read 2 more answers
Y is inversely proportional to the cube of x. If Y = 3 when x = 2, find Y, when x is 3. Write a proportion. Solve for y. Show wo
Wittaler [7]
<span>"Y is inversely proportional to the cube of x" translates to Y = kx</span>³ where k is unknown constant. We need to solve for k.

So we have Y = 3 and x = 2. Plug in and we get 3 = k2³ = 8k

So k = 3/8

Now we can solve for Y when x = 3

Y = (3/8)3³ = (3/8)27 = 81 / 8

Final answer: 81 / 8
8 0
3 years ago
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