The diameter of a circle is 18 cm. Find its area in terms of \piπ. (pi)

Answers

Answer 1

Answer:

Diameter of the circle.. = 18cm

Radius of the circle =18/2= 9cm

Area of the circle = pi r^2

= pi 9^2

= pi 81 cm^2


Related Questions

Find the difference (10m+3)-(4m-2)

Answers

Answer:

6m + 5

Step-by-step explanation:

Answer:

6 +5 m

Step-by-step explanation:

Which list shows the integers in ascending order?
A. 5, 4, -5, -4, 0
B. 0, 4, 5, -4, -5
C. -4, -5, 0, 4, 5
D. -5, -4, 0, 4, 5

Answers

Answer:

D

Step-by-step explanation:

Ascending means they are moving upwards.

8. Beatrice has 20 coins in quarters and nickels. The total value of her coins is $2.20. How many mickels and quartiers
does she have?

Answers

Answer:

40

Step-by-step explanation:

Answer:

6 quarters, 14 Nickels.

What is 3 y + 5 x = negative 15 written in slope-intercept form?

Answers

Answer:

The answer would be y=-5/3x-5!

Step-by-step explanation:

You want to make the equation to y=mx+b, so you have to make y by its self. Subtract 5x from both sides and you'll get 3y=-5x-15. Now divide 3 by both sides and you'll get y=-5/3x-5 which would be the answer!

Answer:

y=(-5/3)x-5

Step-by-step explanation:

so the slope intersect form is y=mx+b

3y+5x=-15

subtract 5x from both sides

3y= -5x-15

divide both sides by 3

y= (-5/3)x - 5

1. How do I find the slope of (2,4) (4,7)

Answers

Answer: 3/2

Step-by-step explanation:

Rise over run!!!

Subtract y values, divide that by the subtracted x values.

7-4/4-2= 3/2

Please help this is super important. like actually don't guess because people guess

Answers

Answer:

m=  -2

Step-by-step explanation:

simplify and solve

9m-12-3m=2m-18+m

6m-12=3m-18

3m=-6

m=-2

Answer:

m=-2

Step-by-step explanation:

3(3m-4)-3m=2m-18+m

remove the parentheses and collect like terms

9m-12-3m=3m-18

collect the terms

6m-12=3m-18

move the terms

6m-3m=-18+12

collect like terms and add them

3m=-6

Divide both sides by 3

m=-2

What is the slope of this line

Answers

The slope is zero because the line is not moving

for solve |2x-2|=6 for x
X=



Answers

Answer:

x  =  6 ,  − 6

Step-by-step explanation:

Answer:

x = 4x = -2

Step-by-step explanation:

Solving for x

|2x-2|=6

1. 2x - 2 ≥ 0 ⇒ 2x ≥ 2 ⇒ x ≥ 1

2x - 2 = 62x = 8x = 4

2. 2x - 2 < 0 ⇒ 2x < 2 ⇒ x < 1

2x - 2 = -62x = -4x = -2

Which statements are true about the reflectional
symmetry of a regular heptagon? Select two options.
It has only 1 line of reflectional symmetry.
A line of symmetry will connect 2 vertices.
O A line of symmetry will connect a vertex and a
midpoint of an opposite side.
It has 7-fold symmetry.
A line of symmetry will connect the midpoints of 2
opposite sides. lol

Answers

A line of symmetry will connect a vertex and a midpoint on an opposite side of a regular heptagon  has 7-fold symmetry.

What is symmetry?

" Symmetry is defined as the line which divides the geometrical shape into two equal proportion."

According to the question,

Regular heptagon is a polygon with 7equal sides.

Line of symmetry will connect a vertex and a midpoint of an opposite sides.

There are seven such possibilities.

Number of lines of symmetry in regular polygon is same number of sides of polygon.

Hence, regular heptagon has 7-fold symmetry.

Learn more about symmetry here

https://brainly.com/question/1597409

#SPJ2

Answer:

c. a line of symmetry will connect a vertex and a midpoint of an opposite side

d. it has a 7-fold symmetry

Step-by-step explanation:

Lisa takes a taxi uptown, and the fare is $12.78. She wants to give the driver a 10% tip.
How much would the tip be?
O $1.28
$5.94
$14:06
$18.72

Answers

Answer:14:06

Step-by-step explanation:

Because because 10 percent of 12.78 is 1.28 then 1.28 + 12.78 = 14.06 so 14.06 is your answer

what is - I (-10) I - 2

Answers

Answer:-2

Step-by-step explanation:

What is 2.1 with 1 repeating as a mixed fraction
A 2 1/10

B 2 1/9
C 2 11/10
D 12/100

Answers

Answer:

the answer is B

Step-by-step explanation:

1. convert the mixed number choices to improper fractions

2. type each improper fraction into a calculator

3. see which one comes out as 2.111111111

4. find out that it's B and you'll B happy (see what I did there, it's a pun)

Brady noticed that there were 38 cars in the parking lot. 7 of the cars were blue.

What decimal represents the percent of the cars that were blue? Round your answer to the nearest hundredth.??????!!!! Help! :)

Answers

Answer:

Step-by-step explanation:

7 blue cars out of 38 cars.

To find the percentage you just divide using your calculator and you should get something like this :

[tex]\frac{7}{38}[/tex] = 0.1842105263

Then you just round that to the nearest hundredth.

If you round 0.184 to the nearest hundredth, it will be 0.18 (You have to round down since the number 4 in the thousandth place is smaller than 5)

the endpoints of line GH are G(0,4) and H(-6,2). find the coordinates of the midpoint M

Answers

Answer: The point G is G(18,-9)

Step-by-step explanation:

Midpoint:

Write the formula for midpoint of the A(x_1,y_1) and B(x_2,y_2).

[(x_1+x_2)/2,(y_1+y_2)/2]

G(x,y), H(-2,9)

(8,0) =[(x+(-2))/2,(y+9)/2]

(x+(-2))/2 =8

(x+(-2))=16

x-2 =16

x =18

(y+9)/2=0

y+9=0

y=-9

The point G is G(18,-9)

(answer found from user homeworkhelp on mathskey.com)

Find the distance between the two points in simplest radical form.
(-6,0) and (-3,-4)
Answer:

Answers

Answer:

5

Step-by-step explanation:

Answer:

I beleave the awnser is √74

Please give me brainlyist :)

Step-by-step explanation: Also if I am wrong please tell me

The sum of two numbers is 15
and their quotient is 2.

Answers

Answer:

The answer is 7.5.

Step-by-step explanation:

15 divided by 2 is 7.5.

Enter an expression that represents the following statement, and then solve the expression. 4 less than the product of 7 and -14. The expression is The value of the expression is.....​

Answers

Answer:

(7*-14)-4

Step-by-step explanation:

Answer:

7(-14) - 4 = x

-98-4=x

-102=x

(3^2) + 3^0 + 3^13 • 3^5
Please help me with this, look at the photo because I’ve been stuck in this question for a long time.

Answers

In exact form its
387427294 (over)/ 243
correct me if i’m wrong

A plumber charges a one-time service fee of $20 in addition to his hourly
rate of $25 per hour. If the plumber went to your house to work on your
bathtub and the bill came to $145.00, how many hours did it take him to
complete the job?

Answers

Answer:

Three hundred fifty-five

Answer: 10.5

Step-by-step explanation:

20+25x=282.50

Subtract 20 on both sides

262.50

Divide each side by 25

You get 10.5

Annalise ended the week with $0. What number could you add to
$55.32 that would result in a sum of $0?

Answers

Answer:

-55.32

Step-by-step explanation:

55.32 + (-55.32) = 0

I hope this helps!

Answer:

Well the number would have to be a negative number, because, no positive number can cause a smaller number adding a positive number will always cause a larger number.

So the answer is: $55.32+(-$55.32)

Adding the -55.32 causes it to even out meaning that u basically just added the debt of 55.32. This debt is causing an decrease in the amount of money she has. So really you are subtracting money

- I hope this helps you-

*AC<3*

can someone help me with these 2?​

Answers

Answer:

A. and D.

Step-by-step explanation:

Match the side lengths with each other. For 3), the reflect each other, so RQ would be parallel to RV. For 4), it is upside down, so if you were to flip it around, it would be MK is parallel to RS.

<3

TRUE OR FALSE: A linear equation has ONE solution when the equation makes a false statement

Answers

Answer:

False

Step-by-step explanation: it can have many

What goes in the blanks "Equations: The variables ____ and _____. Are only ____ or ______ together. Are not in _____, ______ or _______ signs."


This is also about linear functions

Answers

Answer:

The variables x and y. Are only positive or negative together. Are not in denominator, exponent, or radical signs.

I believe this is correct if referring to Ax+By=C (standard form linear equation)

What is the relationship between force, mass, and acceleration?

Answers

Step-by-step explanation:

Force = Mass × Acceleration

SI Unit of Force Is NewtonSI Unit of Mass Is Kilograms SI Unit of Acceleration Is Metre per second Square .

Hope it helps :)

Answer :

★ As per newton's second law of motion, force is measured as the product of mass and acceleration[tex].[/tex]

F = m × a

F denotes force

m denotes mass

a denotes acceleration

➤ Force is a polar vector quantity as it has point of application.

It has both magnitude as well as direction.

SI unit of force : N (newton)

Hope It Helps!

Find the slope
5x - 2y = 10

M=_______

Answers

whose equation is 5x – 2y = 10. term. Therefore: the slope is 5/2 and the y intercept is –5.

Please help? It’s a basic time question and I don’t get it. Either I’m really dumb or it’s to complicated

Answers

Answer: D 1 hour 56 minutes

Answer:

D. 1 hour 56 minutes

Step-by-step explanation:

Well, if you add 2 hours to 12:14, it would be 2:14, so you know it's less than 2 hours. B and D are the only choices that have 1 hour. So, if Aaron left at 2:10, you have to subtract 4 minutes from 2 hours. That would be 1 hour and 56 minutes Aaron spent at the mall.

I hope you understood!! (It's ok if you didn't get it...some things can seem complicated at first!) Have an amazing day C:

solve y=-2/5x+1/10 as a standard notation

Answers

Answer:

4

x

+

10

y

=

10

Explanation:

Standard linear form is

XXX

A

x

+

B

y

=

C

with

A

,

B

,

C

Z

and

A

0

Given

XXX

y

=

2

5

x

+

1

10

Multiply both sides by

10

XXX

10

y

=

4

x

+

1

Add

4

x

to both sides

XXX

4

x

+

10

y

=

1

Step-by-step explanation:

Membership to a music club costs $55. Members
pay $10 per music lesson and nonmembers pay
$15 per music lesson. How many music lessons
would have to be taken for the cost to be the
same for members and nonmembers?


Answers

Answer:

Step-by-step explanation:

Members:

[tex]55/10=5.5[/tex]

Nonmembers:

[tex]55/15=3.6[/tex]

Can anybody help pls

Answers

Answer:

4?

Step-by-step explanation:

There's only 5 teams. (I'm not sure tho)

What is the length of one side of the pyramid space?

Answers

Answer:

136 units

Step-by-step explanation:

it would be 116 units because you add up 15 plus 17  and get 32 then subtract 90 from 32 and get 58

then multiply 58 by 2 and get 116 units

90 degrees per side of pyramid

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