Find the area of a circle with a radius of 2.
Either enter an exact answer in terms of ar or use 3.14 for and enter your answer as a decimal.

Answers

Answer 1

Answer

12.5663706

Step-by-step explanation:

if r=2

the equation for area of circle is 2pier

plug in r and you get 2pi2

mulitply it is 12.5663706 or 4pi.


Related Questions

ITS AN EMERGENCY PLEASE!
Identify the power of the radicand below. 7 sq root 3 to the 4th power

A. 3
B. 4
C. 7
D. The radical above does not have a power ​

Answers

I’m pretty sure the power is 4

Determine the time 2 hours and 7 minutes after 22:57

Answers

Answer:

01:04

Step-by-step explanation:

add 7 minutes to 22:57 to get 23:04. then add 2 hours to get to 01:04.

PLEASE HURRY I NEED MY WORK TO BE SHOWN!!!!! 15 POINTS!!! CORRECT ANSWERS ONLY PLEASE!!!

Answers

Answer:

f(-4) = 72, f(x + 5) = 3x² + 23x + 36

Step-by-step explanation:

f(-4) = 3(-4)² - 7(-4) - 4

      = 48 - (-28) - 4

f(-4) = 72

f(x + 5) = 3(x + 5)² - 7(x + 5) - 4

           = 3(x + 5)(x + 5) - 7(x + 5) - 4

           = 3(x² + 10x + 25) - 7(x + 5) - 4

           = 3x² + 30x + 75 - 7x - 35 - 4

f(x + 5) = 3x² + 23x + 36


Which statements about the figure must be true? Select
three options.

Answers

Answer:

Picture?

Step-by-step explanation:

You gave us nothing to work with

Help me please! I really really need it :|

Answers

Answer:

20-n1.75

you would put the n there because it is how many cards you are purchasing, and it would need to be multiplied by how much the cards cost

Answer:

1.75n=20

N=11

1.75x11=19.25

1.75 times what ever n equals can't go over 20

Graph a line with a slope of 3/4 that contains the point (2,-3)

Answers

Answer:

[tex]y=\frac{3}{4} x-\frac{9}{2}[/tex]

Step-by-step explanation:

Y=mx+c

Y=-3, X=2, m=3/4

(2)(3/4)=6/4=3/2

-3-3/2=-9/2

SO,

c=-9/2

Order of Operations
1) (35 - 5) - 5 - 22
6 ) (53 - 5) + 12 + 2?
I need help ASAP please due tomorrow

Answers

Answer:

answers are 3 and 62

Step-by-step explanation:

the answers were give above. If further instruction needed lmk :)

The sum of 15 and Rhonda's age is 62.

Answers

Answer:

I guess the que is wrong

........

Answer:

Step-by-step explanation:

let the rhonda's age be r

according to the question the euqation is

15+r=62

r=62-15

r=47

PLEASE HELP ME WITH THIS PLSSSSSSSSSSSSSSSSSSSSs

Answers

Answer:

1/12

Step-by-step explanation:

Take the amount of corn bread and divide by the number of family members

1/3 ÷ 4

Copy dot flip

1/3 * 1/4

1/12

To rent an instrument from the school it costs a $50 insurance fee and then $350 per day of use. If Sally rents her instrument for 25 days before she buys her own, how much did she have to pay to rent one?

Answers

Answer:

$2,500

Step-by-step explanation:

$350 per day for 25 days

350*25=2450

Add the 50 for insurance and that makes it 2500

If its wrong im sorry

Answer:

8800 is the amount before she buys her own instrument

Step-by-step explanation:

350 x 25 = 8750

8750 + 50 = 8800

Plz help answer algebra2

Answers

Answer:

x=55°, y=35°, z=145°

Step-by-step explanation:

y is vertically opposite to 35, meaning they share the same value.

We can see that x and y add to 90, as together they take up the space as the angle with the box (a symbol for 90°). This means x+y=90, and x=90-y, which can be written as x=90-35 when subbing y with its known value. This solves to x=55.

z and 35 together form a straight line, meaning z+35=180, or z=180-35. This can be solved to z=145.

**This content involves working out values of angles, which you may wish to revise. I'm always happy to help!

Answer:

(x,y,z) = (55,35,145)

Step-by-step explanation:

the angle of a straight line is 180 degrees. We can see that we have a right angle (90 degrees) and 35 degrees. So x must be 180-35-90=55

since the line on the the left if perpandicular with the line going up x and y must add to form a right angle (90 degrees). therefore y = 90-x=35.

finally, z is in a similar situation to x where the angle of the line is 180. We know y so z = 180-y =145

Use Pythagorean theorem to find the missing side of the triangle write the exact answer no decimals
Last two options: 300
2/10

Answers

Big man pyth said a^2 + b^2 = c^2. He also said c has dat big ting. So x^2 + 10^2 = 20^2. Than just convert them and rearrange. 400 - 100 = x^2

So [tex]\sqrt{300}[/tex] is the answer. Than simplify the surd.   10 [tex]\sqrt{3}[/tex]

shush

help with khan academy problem, law of sines

Answers

Answer:

104°

Step-by-step explanation:

[tex]\frac{sin~B}{18} =\frac{sin~29}{9} \\sin~B=\frac{18}{9} \times sin~29\\sin~B=2~sin~29\\B=sin^{-1}(2 ~sin~29)\\=104^\circ[/tex]

Find the area of each figure. (Or as much as u can)

Answers

9514 1404 393

Answer:

  7. 91 m²

  8. 56 in²

  9. 105 in²

  10. 135 m²

Step-by-step explanation:

The formula for the area of a triangle is ...

  A = 1/2bh

where b is the base length, and h is the height perpendicular to the base.

The formula for the area of a trapezoid is ...

  A= 1/2(b1 +b2)h

where b1 and b2 are the lengths of the parallel bases, and h is the perpendicular distance between them. Note that this formula is virtually identical to the triangle formula, with the triangle 'b' being replaced by (b1+b2).

__

Fill in the numbers and do the arithmetic. The result is shown in the attachment. (We have used the triangle formula for all, with b1+b2 being used for 'b' to find the area of the trapezoids.)

  7. A = 1/2(14 m)(13 m) = 91 m²

  8. 56 in²

  9. A = 1/2(14 +16 in)(7 in) = 105 in²

  10. 135 m²

in this sum, each letter stands for one of the digits 0 to 9
F O U R
+ O N E
= F I V E
can you replace the letters by digits to get s correct sum.( the first digit of a number cannot be zero so neither F nor O is zero)​

Answers

Answer:

7 4 5 0

F O U R

+

4 8 1

O N E

=7 9 3 1

F I V E

Hope this is correct:)

Slope of a line joining —-

Answers

Answer:

?????????

Step-by-step explanation:

di ko po alam yan god bless po

Can someone please help me with this question they are 2 different questions, separate them please I need them right now ):

Answers

Answer:
7.- BC = 22
8.- EF= 8

Explanation

I don’t really now how to explain this in English but I’ll try.
Since both triangles are congruent, you just have to take the similar segments. For question 7, BC and EF are similar, so you write it down as a division, then you have to equally to the adjacent segments, in this case will be AB/ DE

BC/EF = AB/DE

Then you only have to multiply them in cross, so it would be

BC*DE = EF*AB

U will have function and now u have to find x (cabin this case represents the length of the BC segment)

x*5 = 10*11

Now u clear the x, and it gonna look like

x= 10*11/5

U solve that and the answer is 22

I’ll attach some images in case u don’t understand

Answer:

7. [tex]BC=22[/tex]

8. [tex]EF=8[/tex]

Step-by-step explanation:

7.

It is given that triangle (ABC) is similar to triangle (DEF). This means that triangle (DEF) is a scaled version of the triangle (ABC). Between these two triangles, there is a ratio. This ratio referred to as the ratio of similitude, is a factor that one multiplies a side of the triangle by, to get the length of the corresponding side in the other triangle. This number can be found by dividing the corresponding sides in the triangle.

As per the given picture, side (AB) corresponds to side (DE). Therefore divide side (AB) by (DE) to find the ratio of similitude,

[tex]\frac{AB}{DE}=\frac{10}{5}=2[/tex]

Multiply side (EF) by the ratio of similitude to find the length of its corresponding side (BC).

[tex]2(EF) = 2(11) = 22[/tex]

[tex]BC=22[/tex]

8.

The triangles (ABC) and (DEF) are similar. One can use the same logic applied to the last problem to solve this problem. For further reference, read the intro written to explain the process used to solve the problem (7).

One can see that sides (AB) and (DE) are corresponding sides, divide (DE) by (AB) to find the ratio of similitude;

[tex]\frac{DE}{AB}=\frac{4}{6}=\frac{2}{3}[/tex]

Now multiply this number by side (BC) to find the length of the corresponding side (EF);

[tex](BC)*\frac{2}{3}=EF\\12*\frac{2}{3}=EF\\8=EF[/tex]

SHOW YOUR WORK 20 Pointssss

2126 divided by 4758
pls help

Answers

Answer:0.44682639764

Step-by-step explanation:

SOMEBODY HELP ME ASAP​

Answers

Answer:

B.   3x = 90

Step-by-step explanation:

m<QPS + m<RPS = m<QPR

Let m<RPS = x

Then m<QPS = 2x

2x + x = 90

3x = 90

Answer: B.   3x = 90

Find the distance between the two points. Round to the nearest tenth if necessary. (0, 7), (–12, –2)

Answers

Answer:

Distance = 15 units

Step-by-step explanation:

[tex]Let \ (x_1 , y_ 1 ) = ( 0 , 7 ) \ , \ (x _ 2 , y _ 2 ) \ = ( -12 , -2 ) \\\\Dsitance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1 )^2} \\\\[/tex]

             [tex]= \sqrt{(-12 - 0)^2 + ( -2 - 7)^2} \\\\=\sqrt{12^2 + 9^2 }\\\\=\sqrt{144 + 8 1} \\\\= \sqrt {225 } \\\\= 15[/tex]

Answer:

( 12 , - 10 )

Step-by-step explanation:

Difference between the x points : 0 - ( - 12 ) = 12

Difference between the y points : - 12 - ( - 2 ) = -10

There fore the difference ( 12 , - 10 )

Hopefully this is what you mean

Have a nice day !

A culture started with 3,000 bacteria. After 6
hours, it grew to 3,600 bacteria. Predict how
many bacteria will be present after 13 hours.
Round your answer to the nearest whole
to four
number,
P - Aekt

Answers

After 13 hours it will grow to 4,900 rounded to the nearest whole would be 5,000

You should mark me brainliest

Hope this helps :D

Wally has a coupon to get 28% off a ticket to a Red Sox game. If the original price for his ticket is $160, how much will he pay for the ticket? Show/explain how you know!​

Answers

Answer:

28% off 160.00 is 115.20

The difference is 44.80

Step-by-step explanation:

One way is to multiply 160 by 28 percent, and then divide the answer by one hundred, then deduct that result from the original price.

Purchase Price:

$160

Discount:

(160 x 28)/100 = $44.80

Final Price:

160 - 44.80 = $115.20

Thus, a product that normally costs $160 with a 28 percent discount will cost you $115.20, and you saved $44.80.

You can also calculate how much you save by simply moving the period in 28.00 percent two spaces to the left, and then multiply the result by $160 as follows: $160 x .28 = $44.80 savings.

Furthermore, you can get the final price by simply deducting .28 from 1 and multiplying it by $160 as follows: (1 - .28) x $160 = $115.20 final price.

Answer:

160-44.8=115.2

Step-by-step explanation:

160 would be 100%

28%=x

[tex]\frac{160}{x} = \frac{100}{28}[/tex]

[tex]\frac{x}{160} =\frac{28}{100}[/tex]      x=44.8

28% of 160 would be 44.8

160-44.8=115.2

can someone help??....







Answers

The equation parallel to the given equation is y = x + 3

Work:

Trình bày một số ứng dụng của công thức cộng , công thức nhân trong ghép nối các thiết bị để tăng độ tin cậy trong hệ thống

Answers

Answer:

ano po pakitagalog Po pls Hindi ko po kasi maintindihan

Trong không gian với hệ tọa độ Oxyz cho điểm A( 1;2;1)  , mặt phẳng ( ) : 4 0  x y z     và
mặt cầu ( ) : 1 1 4 36 S x y z             2 2 2 . Gọi (P) là mặt phẳng đi qua A , vuông góc với ( )  và
đồng thời (P) cắt mặt cầu (S) theo giao tuyến là một đường tròn có bán kính nhỏ nhất. Biết rằng phương
trình của mặt phẳng (P) khi đó là ax by cz a b c      1 0 ( , , ) . Tính giá trị biểu thức T a b c    2 .
A. T  5
.
B. T  3
.
C. T 10
.
D. T 1
.

Answers

Answer:

lỗi text rồi. ko đọc dc :))

Volume of a number cube that has side lengths of 1 1/4 inches

Answers

1 61/64

Explanation:
The volume of a cube is the side length to the power of 3:
1 1/4^3 = 1 61/64

A brainliest would be nice if i got it correct!
-SpaceMarsg

Find the value of x.
16
24

Answers

X^2+24^2 = (x+ 16)^2
X^2+576 = (x + 16)^2
I just use guess and check
10^2+576=(10+16)^2
100+576=26^2
676=676
So x=10

Hank is running sprints on a football field and likes to challenge himself, so instead of running straight down the field, he runs on the diagonal. Of the field is 50 yards wide and 100 yards long, how far does he run on the diagonal? Round your answer to the nearest yard.

Answers

Answer:

112 yards

Step-by-step explanation:

Applying Pythagoras theorem,

Pythagoras theorem states that, in a right angle triangle, the square of the hypotenuse is equal to the sum of the square of the two other sides.

Mathematically, it is expressed as

a² = b²+c²................. Equation 1

Where a = Length of the diagonal, b and c = lenght of the two other sides

From the question,

Given: b = 50 yards, c = 100  yards.

Substitute these values into equation 1

a² = 50²+100²

a² = 2500+10000

a² = 12500

a = √12500

a = 111.8

a = 112 yards

how to help learners realize that 2×+3=5 is not a correct answer​

Answers

Step-by-step explanation:

2x+3=5 is not a COMPLETE answer, however it is an answer

Submitting 2x+3=5 instead of doing the work yourself will result in a fail.

Doing work for equations but refusing to the do the final step is absolutely unnaceptable.

I hope that we can improve our learning and answering style soon, as I do not want to repeat myself.

Given the equation of a circle below, determine the center and radius of the circle.
(x+5)^2+y^2=36

Answers

9514 1404 393

Answer:

center: (-5, 0)radius: 6

Step-by-step explanation:

Compare the given equation to the standard form equation for a circle with center (h, k) and radius r.

 (x -h)^2 +(y -k)^2 = r^2

You see that ...

 -h = +5   ⇒   h = -5

 -k = 0   ⇒   k = 0

  r^2 = 36   ⇒   r = √36 = 6

The center is (h, k) = (-5, 0), and the radius is r = 6.

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