1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anon25 [30]
2 years ago
8

PLEASE HELP !!! CORRECT ANSWER GETS BRAINLIEST!!!!​

Mathematics
2 answers:
shtirl [24]2 years ago
8 0

Answer:

area of this circle: 490.6 inch²

Step-by-step explanation:

area of circle: π(radius)²

Here the diameter is given 25 inch, so the radius will be half: 25/2 → 12.5 in

using the formula:

3.14(12.5)²

490.625 inch²

490.6 inch²____rounded to nearest tenth.

Arte-miy333 [17]2 years ago
5 0
<h3>Given:</h3>

\\

  • Diameter of circle = 25in.

\\

<h3>To find:</h3>

\\

  • Area of circle.

\\

<h3>Explanation:</h3>

\\

So as Diameter is given , let's covert it into radius.

We know:

\\

\bigstar \boxed{ \rm Diameter \: of \: circle \:  = 2 \times radius}

\\ \\

\hookrightarrow \sf Diameter \: of \: circle \:  = 2 \times radius \\

\\  \\

\hookrightarrow \sf 25 = 2 \times radius \\

\\  \\

\hookrightarrow \sf radius \:  =  \dfrac{25}{2}

\\  \\

\hookrightarrow \bf radius \:  = 12.5 in.

Now Let's find circumference of circle:

we know:-

\\  \\

\bigstar \boxed{ \rm Circumference \: of \: circle \:  =  \pi radius^2}

\\

So:-

\\  \\

\dashrightarrow \sf Circumference \: of \: circle \:  =  \pi radius^2\\

\\  \\

\dashrightarrow \sf Circumference \: of \: circle \:  = 3.14\times (12.5)^2\\

\\  \\

\dashrightarrow \sf Circumference \: of \: circle \:  = 3.14 \times 156.25\\

\\  \\

\dashrightarrow \bf Circumference \: of \: circle \:  = 490.63\\

\\  \\

\bf\dag \underline {\blue{\frak{ Circumference \: of \: circle \:  = 490.63 in(approx)}}}

You might be interested in
PLEASE HELP WILL MARK BRAINLIEST
Ivanshal [37]
First one pretty obvious
8 0
3 years ago
I really don't get it plz help
marshall27 [118]

Answer:

Step-by-step explanation:

Change g(n) to y

y = 2n - 2

2y - 2 = n

2y = n + 2

y = (n + 2)/2

g^-1(n) = 1/2n + 1

solution is B

7 0
3 years ago
I know this but my brains not working
Masja [62]

Answer:you just find the answer from the 2 fractions you have

Step-by-step explanation:

8 0
3 years ago
Need help pls<br>thank you in advance ​
ira [324]

Answer:

<h3><u>Mean</u></h3>

<u />

\textsf{Mean}\:\overline{X}=\sf \dfrac{\textsf{sum of all the data values}}{\textsf{total number of data values}}

\implies \sf Mean\:(Nilo)=\dfrac{5+6+14+15}{4}=\dfrac{40}{4}=10

\implies \sf Mean\:(Lisa)=\dfrac{8+9+11+12}{4}=\dfrac{40}{4}=10

<h3><u>Standard Deviation</u></h3>

\displaystyle \textsf{Standard Deviation }s=\sqrt{\dfrac{\sum X^2-\dfrac{(\sum X)^2}{n}}{n-1}}

\begin{aligned}\displaystyle \textsf{Standard Deviation (Nilo)} & =\sqrt{\dfrac{(5^2+6^2+14^2+15^2)-\dfrac{(5+6+14+15)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{482-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{82}{3}}\\\\& = 5.23\end{aligned}

\begin{aligned}\displaystyle \textsf{Standard Deviation (Lisa)} & =\sqrt{\dfrac{(8^2+9^2+11^2+12^2)-\dfrac{(8+9+11+12)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{410-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{10}{3}}\\\\& = 1.83\end{aligned}

<h3><u>Summary</u></h3>

Nilo has a mean score of 10 and a standard deviation of 5.23.

Lisa has a mean score of 10 and a standard deviation of 1.83.

The <u>mean</u> scores are the <u>same</u>.

Nilo's standard deviation is higher than Lisa's.  Therefore, Nilo's test scores are more <u>spread out</u> that Lisa's, which means Lisa's test scores are more <u>consistent</u>.

5 0
2 years ago
Choose the correct word that completes each statement about inscribing a square in a circle.
Anna11 [10]

Answer:

1. Perpendicular

2. Isosceles

3. Never

Step-by-step explanation:

1. AC ⊥ BD because diameter of a square are perpendicular bisector of each other.

2. In Δ AOB , By using pythagoras : AB² = OA² + OB² .......( 1 )

In Δ COB , By using pythagoras : BC² = OC² + OB²  ..........( 2 )

But, OA = OC because both are radius of same circle

So, by using equations ( 1 ) and ( 2 ), We get AB = BC ≠ AC

⇒ ABC is a triangle having two equal sides so ABC is an isosceles triangle.

3. The side can never be equal to radius of circle because the side of the square will be chord for the circle and in a circle chord can never be equal to its radius


7 0
3 years ago
Other questions:
  • angie puts 1 stamp on each envelopes. she puts stamps on 7 envelopes. how many stamps does angie use?
    8·2 answers
  • 2. The Axis powers included _.
    15·1 answer
  • The diagram below shows the percentages
    13·1 answer
  • P=2a+2b, solve for b
    8·1 answer
  • How do you solve a ratio problem?
    12·2 answers
  • Having trouble with this one can someone teach me how to find the slope in this question. Try to help me learn it aswell. Its in
    11·1 answer
  • The area of a rectangular fountain is x2 + 9x + 20 square feet. A 5-foot walkway is built around the fountain. Find the dimensio
    6·1 answer
  • What are the potential solutions to the equation?
    6·1 answer
  • A piece of property lies between two parallel streets as shown. m&lt;1=(2x+6)°,and m&lt;2=(3x+9)°. What is the relationship betw
    5·1 answer
  • in baseball the home plate is shaped like the one shown it has three right angles and two other congruent angles A and B find me
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!