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qwelly [4]
1 year ago
15

Find the area of the circle. 7 m

Mathematics
2 answers:
Elenna [48]1 year ago
7 0

Answer:

(56)2532 \\  \times \frac{?}{?}

ss7ja [257]1 year ago
6 0

         \rule{50}{1}\large\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}

           <em>Find the area of the circle (radius = 7 inches)</em>

<em />

<em />\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}

  • <em>  </em> We're asked to find the area of the circle, which can be found using the  following formula:-

 

\longmapsto\underline{\boxed{\bold{A=\pi r^2}}}

Where:-

  • A=Area
  • π = pi, 3.14...
  • r = radius

Provided Information:-

  • r=7 m

What to do:-

  • Substitute the required value (r=7) into the formula:-

\longmapsto\sf{A=\pi (7)^2}

\bigstar Squaring the radius,

\longmapsto\sf{A=\pi \times49}

\bigstar On simplification,

\longmapsto\sf{A=3.14\times49}

     - Remember, π=3.14

\bigstar On further simplification,

\longmapsto\sf{A=153.86}

\bigstar Finally, We get

\longmapsto\underline{\boxed{\bold{A=153.86\:m^2}}}

<h3 /><h3>Good luck with your studies.</h3>

#TogetherWeGoFar

\rule{300}{1}

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Multiply.
Nady [450]

\boxed{3\sqrt{22}\sqrt{58}\sqrt{18}=18\sqrt{638}}

<h2>Explanation:</h2>

Here we have the following expression:

3\sqrt{22}\sqrt{58}\sqrt{18}

So we need to simplify that radical expression. By property of radicals we know that:

\sqrt[n]{a}\sqrt[n]{b}=\sqrt[n]{ab}

So:

3\sqrt{22}\sqrt{58}\sqrt{18}=3\sqrt{22\times 58 \times 18}=3\sqrt{22968}

The prime factorization of 22968 is:

22968=2^3\cdot 3^2\cdot11\cdot 29

Hence:

3\sqrt{22968}=3\sqrt{2^3\cdot 3^2\cdot11\cdot 29}=3\sqrt{2^2\cdot 3^2\cdot 2\cdot 11\cdot 29}

By property:

\sqrt[n]{a^n}=a

So:

3\sqrt{2^2\cdot 3^2\cdot 2\cdot 11\cdot 29} \\ \\ 3(2)(3)\sqrt{2\cdot 11\cdot 29}=18\sqrt{638}

Finally:

\boxed{3\sqrt{22}\sqrt{58}\sqrt{18}=18\sqrt{638}}

<h2>Learn more:</h2>

Radical expressions: brainly.com/question/13452541

#LearnWithBrainly

3 0
3 years ago
a company makes $10 000 in 2017. The projection of profit increase is fixed 40% from the previous year. Predict the company prof
cestrela7 [59]

Answer:

19600

Step-by-step explanation:

For every year the profit increases by 40% so to figure out the profit from 2017 to 2018 you do 10,000*1.4 to and get 14,000. To get 2019's profit you do the same process, but use 2018's profit of 14,000 instead of 2017's profit to get 19,600.

6 0
3 years ago
How do to solve this problem? (The answer is 262 Hz) I don't need to know the question that it is asking. I just want to know ho
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Step-by-step explanation:

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3 0
1 year ago
Maya wrote the following matrix equation to represent a system of equations:
Ne4ueva [31]
I am somehow confused with the given matrix. Because usually, when the system of equations is given as:

ax + by = c
dx + ey = f

the matrix would be written in this manner:

\left[\begin{array}{ccc}a&b&c\\d&e&f\end{array}\right]

Let me just assume that the arrangement of the given corresponds to this system of equations:

4x + 8y = 0
2x + 5y = 6

So you write it as 

\left[\begin{array}{ccc}4&8&0\\2&5&6\end{array}\right]

In order to solve this, the matrix should look like this where x and y are the answers

\left[\begin{array}{ccc}1&0&x\\0&1&y\end{array}\right]


So, the first thing to do is apply this pattern: Row 2 = Row 1 - 2*Row 2. The result will be

\left[\begin{array}{ccc}4&8&0\\0&-2&-12\end{array}\right]

Next, Row 1 = (Row 1/4) + R2:

\left[\begin{array}{ccc}1&0&-12\\0&-2&-12\end{array}\right]

Lastly, Row 2 = Row 2 / -2:

\left[\begin{array}{ccc}1&0&-12\\0&1&6\end{array}\right]

Thus, the answer is x=-12 and y=6.
7 0
3 years ago
Which of the following could be the first step in solving the equation below 4+2log_(3)x=17
11Alexandr11 [23.1K]

Answer:

subract 4 from both sides

Step-by-step explanation:

5 0
2 years ago
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