A circle has a radius 5cm. Using area = πr² calculate the area of the circle. Give your answer to 2 decimal places

Answers

Answer 1

Answer:

[tex]Solution,\\Radius(r) = 5cm\\Area of circle = \pi r^2 = \pi (5)^2 = 25\pi =78.54cm^2[/tex]


Related Questions

I just need help on which option

Answers

        The answer is option two    

could someone please help and fast?

Answers

Answer:

141

Step-by-step explanation:

Answer:

141

Step-by-step explanation:

Find the third angle in the triangle and using the rule that all supplementarly angles are 180 degrees, subtract the third angle from 180.

180-87-54=39, 39 is the third angle of the triangle

180-39=141 degrees, x= 141

plz help me and show your work, will give brainliest to who ever answers first and is right.

Answers

Answer:

6

Step-by-step explanation:

2y=12

Divide each term by

2

and simplify.

y

=

6

Answer:

x = -2 and y = 3

Step-by-step explanation:

plug in the x = 3y - 8 into the x for the top equation

so it looks like this...

-3(2y - 8) + 2y = 12

solve

-6y + 24 + 2y = 12

-4y + 24 = 12

      -24   -24

-4y = -12

divide bye -4

y = 3

plug in y = 3 on the second equation

x = 2y - 8

x = 2(3) - 8

x = 6 - 8

x = -2

Help need answers quick (unprofessional behavior and wrong answers will get reported)

Answers

Answer:

step 2 is the answer. when you start the question it's already in pemdas order. 48÷6 equals 8 then multiply it by the other 8 then you can add that quotient to the 10 which is 74 then subtract it by 7 and you get 67. step 2 goes the wrong way and ads the 8 with the 10 before multiplying the 8 by the 8 making everything go in wrong turns.

Can somebody plz help answer these questions correclty (like what each letter equals) thanks :3

WILL MARK BRAINLIEST WHOEVER CAN ANSWER THIS FIRST :DD

Answers

Answer:

X=12

y=34

z=45

m=33

n=27

z=27

Step-by-step explanation:

there u go

Answer:

23) x -3 = 9

x=9+3=12

24) y-11=23

y=23+11=34

25) z-8=37

z=37+8=45

26) m-16=17

m=17+16=33

27) n-9=18

n=18+9=27

28) z-14=13

z=13+14=27

huan's wage is £10.40 per hour l. he receives a 10% pay rise ​

Answers

Answer:

Step-by-step explanation:

10% of 10.40=1.04

10.40+1.04=11.44

What is the value of s?
units

Answers

The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the cesium frequency ΔνCs, the unperturbed ground-state hyperfine transition frequency of the cesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s-1.

PLEASE PLEASE PLEASE HELP!!!!!

Answers

Answer:

5 hours

Step-by-step explanation:

use the variable "h" for number of hours

10+5h=7h

subtract 5h from both sides

2h=10

divide both sides by 2

h=5

WILL GIVE BRAINLIEST AND 20 POINTS!
One side of a square room measures 24 ft. How many square yards of carpet are necessary to carpet the room? Hint: 1 yd2 = 9 ft2.
yd2

Answers

Answer:

2.6

Step-by-step explanation:

24 ft. divided by 9 is 2.6666666666...

Area of the carpet= a^2
= 24^2
=576 ft^2
=576/9
=64 yd^2

The triangle is rotated 90 degrees clockwise. Where will point P' be located?

Answers

Answer:

2

Step-by-step explanation:

thats it

Answer:

(1,2)

Step-by-step explanation:

P is (-2,1) and it says you have to rotate it 90 degrees clockwise so that means you make the X opposite which makes it (2,1) and then you have to switch the x and y so that makes your final answer (1,2)

Tallulah biked 84 miles at a rate of 10.5 miles per hour. Determine how many hours she biked. Use d=rt​

Answers

Answer:

B. 8 hours

Step-by-step explanation:

T=d/r

84/10.5 = 8 hours

4. Answer the question below using complete sentences. * Rae made a table of x and y values. The relationship between the x and the y values in Rae's table is not a function. One of the values of x is missing from Rae's table, as shown. What is a value of x that Rae could use to complete her table to show that the relationship between x and y is not a function? explain your answer ​

Answers

Answer:

Any of x = {-3, 5, -1, 0}

Step-by-step explanation:

Since the relationship in the table is not a function, Rae could put any values for x that is already in the table.

x = -3, 5, -1, 0

This will result in repeat of x-values with different corresponding y-values.

Please help me I just want to know what is wrong with that. PLEASE

Answers

Answer:

---> --->  

WS  DS

Step-by-step explanation:


Resuelve

Ritmo de cambio. Cada uno de los siguientes datos es la pendiente de una recta que representa los ingresos diarios y en términos del tiempo X en días. Utilizar la pendiente para interpretar
la variación en los ingresos correspondiente a un incremento de
un día
a). m =800
b). m =250
c). m = 0​

Answers

Answer:

800m

Step-by-step explanation:

porque incremento de un día

Which expression shows the factored form of 16x + 12y - 4 PLZZZZZZZ HELP I WILL LIST YOU BRIANEST

answers:
4(4x +3y)

4(4x +3y – 1)

16(x +4y – 12)

A.14xy

Answers

Answer:

It is 4(4x + 3y - 1) I just did this quiz

Step-by-step explanation:

I think of a number. I multiply it by 2 and my answer is 24. What was my number?

Need help trying to solve

Answers

Answer:

12

Step-by-step explanation:

Brainliest plz trying to level up

plz answer only if you know ur correct. the best answer gets brainliest

Answers

Answer:

b and e are correct and f maybe

Step-by-step explanation:

(⌐■_■) ( •_•)>⌐■-■
ᕙ(^▿^-ᕙ)

Answers

Answer:

(‿!‿) ԅ(≖‿≖ԅ)

Step-by-step explanation:

Hi if u could help me that'd be great

Answers

Answer:

1 hour and 45 minutes

and 1 hour

Step-by-step explanation:

x= run

y= walk

5x+2.5y = distance

5x+2.5(1.5)=12.5

solve for x

5x=8.75

x=1.75

1.75 in hours is 1 hour and (60*.75)=45

1 hour and 45 minutes

" If the marathon race participant ran for 2 hours, how many hours did the participant walk?"

We use the same equation

5x+2.5y=distance

we'll assume that they till walked 12.5 miles

which means that

5(2)+2.5y=12.5

solve for y

2.5=2.5y

y=1

1 hour

Answer:

Everybody, everybody

Get out on the floor

It can get a little crazy

When the kick hits the floor

Make a scene Make a scene

Nobody can ignore

Don't knock it, til you rock it

We can't take it no more!

Bring the lights up!

Bust the doors down!

Dust yourself off,

Shake it up!

Shake it up!

DJ set it off!

Take it up a notch

All together now!

Shake it up!

Shake it up!

Step-by-step explanation:

A triangle has an area of 72 cm² and a base of 10 cm². What is the height of the triangle?

Answers

Answer:

14.4

Step-by-step explanation:

Area= 72 cm^2

Base= 10 cm

height= ?

Area= base x 1/2 x height

72 = 10 x 1/2 x h

72= 5 x h

72/5 = h

h= 14.4

Which graph represents y = –4x + 4? HURRY PLEASE HELP!!

Answers

y=-4x+4
-4 is the gradient
So it goes downwards
+4 is the y intercept so where it crosses the y axis
Bottom right one

I NEED HELP ASAPPPP
4. Simplify the radical 27. Give the exact answer in simplified radical form. (use the factor tree)
Answer
5.simplify the radical 1800. Give the exact answer in simplified radical form. Use factor tree

Answers

Answer:

4) [tex]3\sqrt{3}[/tex] 5) [tex]10\sqrt{18}[/tex]

Step-by-step explanation:

[tex]27[/tex] can be broken down into [tex]3[/tex] and [tex]9[/tex]

[tex]\sqrt{27}=[/tex][tex]\sqrt{9}[/tex] × [tex]\sqrt{3}[/tex]

However, [tex]\sqrt{9} =3[/tex], so its really just:

[tex]3\sqrt{3}[/tex]

[tex]1800[/tex] can be broken down into [tex]100[/tex] and [tex]18[/tex]

[tex]\sqrt{1800} =[/tex][tex]\sqrt{100}[/tex] × [tex]\sqrt{18}[/tex]

However, [tex]\sqrt{100} =10[/tex], so it is really:

[tex]10\sqrt{18}[/tex]

plz mark me brainliest. :)

(a) Reflect the point (7, -9) across the y-axis:
(b) Reflect the point (7, -9) across the x-axis:

Answers

Answer:

(-7,-9) and (7,9)

Step-by-step explanation:7,-9 so we do across the x so you need a graph for this now x goes left so we plot the coordinates in the third box 7,-9 is in the 4 box so after we plotted that you can see it reflects.Now y coordinate since the y line goes up we plot the coordinates on top of the 4 box where our original coordinates stay now it should be 7,9 the y becomes positive which is 9.

This is not a web answer i answered myself took me some time!

(a) after reflecting (7, -9) across the y-axis you get (-7, -9)
(b) after reflecting (7, -9) across the x-axis you get (7, 9)

True or False: The points (6,13) (21, 33) and (99, 137) all lie on the same line. The equation of the line is y = 4/3x + 5. PLS HELP ASAP

Answers

Answer:

This is true look at picture for clarification

Answer:

True

Step-by-step explanation:

To see if the points all lie on the line y = 4/3x + 5, substitute their x and y values into the equation, solve, and see if the equation is true.

1) First, substitute the x and y values of (6,13) for the x and y in the equation and solve:

[tex]13 = \frac{4}{3} (6) + 5 \\13 = \frac{24}{3} +\frac{15}{3} \\13 = \frac{39}{3}\\13 = 13[/tex]

The result is a true equation. Thus, (6,13) is on the line.

2) Do the same with the point (21,33):

[tex]33 = \frac{4}{3} (21) + 5 \\33 = \frac{84}{3} +\frac{15}{3} \\33 = \frac{99}{3} \\33 = 33[/tex]

The result is a true equation. Thus, (21,33) is on the line.

3) Finally, do the same with (99, 137):

[tex]137 = \frac{4}{3} (99) + 5\\137 = \frac{396}{3}+\frac{15}{3} \\137 = \frac{411}{3} \\137 = 137[/tex]

The result is a true equation. Thus, (99, 137).

All three points are on the line, thus the statement is true.

5.


Identify the mapping diagram that represents the relation and determine whether the relation is a function.

{(–3, –6), (–1, –6), (5, –6), (8, –6)}

Which of the following is true?


A. choice a.


B. choice d.


C. choice c.


D. choice b.

Answers

Answer:

The answer is D. choice B. The coordinate point CAN share the same y point but, CANNOT share the same x point

Step-by-step explanation:

For all values of x, y = - 6

Your function:

y = - 6

Simple math questions pls help me out

Answers

Answer:

True, True, False, True, False for part 1

Step-by-step explanation:

Make me brainliest

Answer:true,true,false,true part one

Step-by-step explanation:

If 0 < z ≤ 90 and sin(9z − 1) = cos(6z + 1), What is the value of z?

Answers

Answer:

6

Step-by-step explanation:

Given the expression sin(9z − 1) = cos(6z + 1), for 0 < z ≤ 90, we are to find z

Note that sin theta = cos(90-thetsa)

sin(9z − 1) = cos(6z + 1)

cos (90 - (9z-1)) = cos(6z + 1)

cos (90 - 9z+1)) = cos(6z + 1)

cos (91-9z) = cos(6z + 1)

Cos will cancel out to have;

91-9z = 6z+1

-9z - 6z = 1-91

-15z = -90

z = 90/15

z = 6

Hence the value of z is 6

Which of the following lists the missing reasons in the respective order?

Alternate Interior Angle Theorem, ASA, CPCTC


Vertical Angle Theorem, ASA, CPCTC


Linear Pair Postulate, SSS, CPCTC


Reflexive Property, CPCTC, AAS

Answers

Answer:Vertical Angle Theorem, ASA, CPCTC

Step-by-step explanation: It's definitely a vertical Angle .

ANOTHER ONE 3 HELP ME AGAIN BEFORE TIME RUNS OUT.

Answers

Answer:

the answer is parallel lines

Another one 3 help me again before time runs out.

The awnser would be Parallel lines.

what is 22

+ 60 is it 87 , 650 , or 82, or 67

Answers

Answer:

82

Step-by-step explanation:

vote brainiest plzz

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