The diameter of a circle is 6 cm. Find its area to the nearest tenth.

Answers

Answer 1

Answer: 28.27 cm

Step-by-step explanation: A circle of radius = 3 or diameter = 6 or circumference = 18.85 centimeters has an area of 28.27 square centimeters.

Answer 2

Answer:

[tex]= 28.26 {cm}^{2} \\ \\ [/tex]

Step-by-step explanation:

[tex]d = 2r \\ 6 = 2r \\ \frac{6}{2} = \frac{2r}{2} \\ r = 3 \\ \\ \\ area = \pi {r}^{2} \\ = \pi \times 3 \times 3 \\ = 28.26 {cm}^{2} \\ [/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!


Related Questions

Solve -4-2(3-x)=-2(x+3)

Answers

Answer:

x=1

Step-by-step explanation:

-4-2(3-x)=-2(x+3)

Expand parentheses:

-4-6+2x=-2x-6

Add 2x+6 to both sides:

4x-4=0

Add 4 to both sides:

4x=4

Divide both sides by 4:

x=1

Hope this helps!

Answer:

[tex]x[/tex] = 1

Step-by-step explanation:

-4-6+2[tex]x[/tex] = -2[tex]x[/tex]-6

-10+2[tex]x[/tex] = -2[tex]x[/tex]-6

2[tex]x[/tex]+2[tex]x[/tex]= = -6+10

4[tex]x[/tex] = 4

[tex]x[/tex] = 1

hope this helped and please brainliest!

Emma wrote an equation to represent a proportional relationship between the variables x and y. Which equation might she have written?
A. y = x + 2
B. y = x - 2
C. y = 2x
D. y = x2
will mark BRAINLIEST

Answers

C. y = 2x it make more sence

Answer:

C

Step-by-step explanation:i took test on edge 2020

A parabola can be represented by the equation x2 = 2y. What are the coordinates of the focus and the equation of the directrix? focus: (0,8); directrix: y = –8 focus: (0, one-half); directrix: y = negative one-half focus: (8,0); directrix: x = –8 focus: (one-half, 0); directrix: x = negative one-half

Answers

Answer:

b)

i) Focus ( 0,a) = [tex](0,\frac{1}{2} )[/tex]

ii) The equation of the directrix is

                            [tex]y = -\frac{1}{2} or y +\frac{1}{2} =0[/tex]

Step-by-step explanation:

Step(i):-

  A parabola is the set of all points in a plane that are equidistant from a fixed line and a fixed point (not in a line) in the plane

• The Fixed line is called the directrix of the parabola.

• The Fixed point is called the focus of the parabola.

• A line through the focus and perpendicular to the directrix is called the axis of the parabola.

• The point of intersection of parabola with the axis is called the vertex of the parabola.

Given Parabola x² = 2 y

Comparing  x² = 4 a y

                   4 a = 2

                     [tex]a = \frac{1}{2}[/tex]

  Focus ( 0,a) = [tex](0,\frac{1}{2} )[/tex]

Step(ii)

The equation of the directrix is y = -a or y +a=0

The equation of the directrix is

                            [tex]y = -\frac{1}{2} or y +\frac{1}{2} =0[/tex]

The equation of the directrix is 2 y +1 =0

Answer:

b.

Step-by-step explanation:

edg 2021

Select the inequality that represents the relationship described below.
The sum of three times a number and seven is greater than four times the number.
O A.
3 + 7 x > 4x
OB.
3x + 7 > 4x
O C.
3-7x> 4x
OD.
3x-7> 4x Thing​

Answers

Answer:

B

Step-by-step explanation:

idk how to explain but it iss what it issss

There are 35 animals at the zoo, including lions, crocodiles, monkeys and elephants. There are 6 lions; there are 2 fewer crocodiles than lions; there are 5 times as many monkeys as crocodiles. How many elephants are there?

Answers

Answer:

5 elephants

Step-by-step explanation:

lions = 6

crocs = lions -2 = 6-2 =4

monkeys = 5*crocs = 5*4 = 20

the rest are elephants

35 - 20 -4-6 = 5

5 elephants

Answer:

5

Step-by-step explanation:

6-2=4

4*5=20

35-30=5

What is the value of x in the equation?
(x+b) = -18
-36
-33
-24
-18

Answers

Answer:

C. -24

I HOPE IS RIGHT

hello! i've been having a bit of trouble with my homework! i'd appreciate it if one of you people could help me out! (this is a middle school mathematics homework question)

Answers

Answer:

The ( simplified ) expression is 7x -  8

Step-by-step explanation:

We are given the expression ( 2x + [tex]\frac{ 1 }{ 2 }[/tex] ) + ( 5x - 8 [tex]\frac{ 1 }{ 2 }[/tex] ),

[tex]( 2x + \frac{ 1 }{ 2 } ) + ( 5x - 8 \frac{ 1 }{ 2 } ) - remove ( )\\,\\2x + \frac{ 1 }{ 2 } + 5x - 8 \frac{ 1 }{ 2 } - combine like terms,\\\\2x + 5x + \frac{ 1 }{ 2 } - 8 \frac{ 1 }{ 2 } - add / subtract,\\\\Simplified Expression ; 7x - 8[/tex]

Solution; 7x -  8

the answer to this question is is 7x-8

Roxanne is measuring the diameter and the radius of different-sized circles. There is a proportional
relationship between the radius of the circle in inches, x, and the diameter of the circle in inches, y.
A circle with a 2-inch radius has a diameter of 4 inches. Write the equation for the relationship
between x and y

Answers

Answer: y =2x

Step-by-step explanation:

Hi, to answer this question we have to write an equation with the information given:

Since a circle with a 2-inch radius has a diameter of 4 inches, it means that the diameter of a circle (y) is equal to two times its radius (x).

Mathematically speaking:

y = 2 x

Feel free to ask for more if needed or if you did not understand something  

WILL MARK BRAINILEST IF CORRECT

Express the answer as [tex]a^n[/tex].
[tex](3^2)^6 * (4^2)^4[/tex]

Answers

Answer:

81 x 12^8

Step-by-step explanation:

3^12 x 4^8

Use the properties of exponents

3^4 x 12^8

= 81 x 12^8

Answer:

2.156489996 * 10^21

Step-by-step explanation:

Plz help i will mark u brainiest

Answers

So the answer is 11 units

Look at the attached picture

Hope it will help you

Good luck on your assignment

A mathematical term that does not include an equal or inequality sign is called an _____.

Answers

It’s called an expression

Answer:

A mathematical term that does not include an equal or inequality sign is called an expression.

Step-by-step explanation:

Example:

(2+2)4+8

You do what's in parenthesis first, which is 2+2 = 4

Then, you multiply 4 by 4 because there is no sign between the paratinsees

4 x 4= 16

Then you add 8.

Your answer is 24.

Hoped this helped!

☆*: .。. o(≧▽≦)o .。.:*☆

PLEASE I NEED YOUR HELP IM GIVING U OUT 10 POINTS What is the value of x in the equation 2 (x + 3) = 4 (x minus 1)? A)1 B)2 C)3 D)5

Answers

D) 5

Look at image and I’ll be glad to explain more.

Answer:

D)5

Explanation:

opening the bracket, you get :2x+3 = 4x-4

solving further you ,that is collecting like times you will get 2x-4x = -4-6

Therefore,-2x = -10

Dividing both sides by -2,xis equal to 5.

I hope this helps…

To show that TRK= TUK by the SAS postulate, what additional information is necessary?

Answers

Answer:

RTK = UTK

Step-by-step explanation:

Answer:

RTK =UTK

Step-by-step explanation:

William's typical running speed is 6 mi/h. The difference between his fastest speed and his typical speed is 1.5 mi/h. The
equation f-1.5 - 6 can be used to represent this problem, where fis William's fastest speed. What is William's fastest
speed?
4.5 mi/h
5.5 mi/h
6.5 mi/h
7.5 mi/h

Answers

I think it’s 5.5 mi/h

William's fastest speed given his typical speed and the diffeerence between his fastest speed and his typical speed is 7.5 mi/h.

What is William's fastest speed?

Addition is determining the total value or summing two or more numbers. Addition is one of the four basic operations in mathematics.

Fastest speed = 1.5 + 6 = 7.5

To learn more about addition, please check: https://brainly.com/question/19628082

What is the measure of

Answers

Hey!!!

here's your answer

X+128=180( sum of angle in straight line)

or,X=180-128

X=52 degree.

So the value of X is 52 degree.

Hope it helps...

Good luck on your assignment

Answer:

[tex]x = 52 \: \: degrees[/tex]

Step-by-step explanation:

[tex]x + 128 = 180 \\ x = 180 - 128 \\ x = 52 \: \: degrees[/tex]

(sum of the angles in a straight line = 180 degrees)

hope this helps

brainliest appreciated

good luck! have a nice day!

What is the slope of the line y = 2x + 3 *

Answers

Answer:

2

Step-by-step explanation:

the equation for the line is written in slope intercept form y=mx+b m is the slope and b is the y intercept where the line crosses the y-axis

Hello! :)

This equatio is written in slope-intercept form, which looks like so:

y=mx+b

Here, m is the slope, and b is the y-intercept.

In the given equation, 2 is the slope, and 3 is the y-intercept.

I hope it helps you. Please ask me if you have any questions.

~A forlorn teen

[tex]MagicalNature[/tex]

The stem-and-leaf plot below shows the number of kilometers walked by participants in a benefit walk. Number of Kilometers Walked by Participants 12 0 3 6 7 9 9 13 0 1 4 5 5 14 0 0 2 3 3 8 8 9 15 0 2 2 2 2 3 5 5 7 16 0 5 5 9 9 17 0 4 5 (Key: 12 | 3 means 12.3 km) How many of the walkers traveled more than 16 km? What is the furthest that someone walked?

Answers

Answer:

Would you mind taking a screen shot of it?

Step-by-step explanation:

Please help :( The numbers in the little yellow boxes are the answers. plz help me:( tysm

Answers

Answer:

88,77

34,99

90,11

88,10

65,7

93,1

The shipping box has a length of 30 inches and a height of 6 inches. How wide should the box be to fit the 36-inch bat? Show and explain your work.

Answers

Answer:

width = 18.97 inches

Step-by-step explanation:

To find the smallest width of the box to fit the bat, we need to put the bat in the diagonal of the box.

The diagonal of the box is given by:

diagonal^2 = length^2 + width^2 + height^2

Then, using the diagonal = 36 inches, length = 30 inches and height = 6 inches, we have:

36^2 = 30^2 + width^2 + 6^2

1296 = 900 + width^2 + 36

width^2 = 360

width = 18.97 inches

Plz help i will mark u brainiest

Answers

Answer:15

Step-by-step explanation:

Solve for x 3x +2= y; y=5. X=____

Answers

Answer:

X=1

Step-by-step explanation:

Solve this like any other two step equation.

But first plug in y value.

3x + 2 = 5

Subtract 2 from each side

3x = 3

Now divide each side by 3

X=1

Hope this helps plz mark brainliest!

Answer:

[tex]3x +2= y; y=5. \\3x +2 = 5\\3x =5 -2\\3x = 3\\Divide-both-sides-of-the-equation-by 3\\\frac{3x}{3} =\frac{3}{3} \\x = 1[/tex]

Step-by-step explanation:

x = 1

Step 1 : Substitute 5 for y in 3x +2= y

Step 2 : Collect like terms

Step 3 : Simplify

Divide both sides of the equation by 3

x = 1

Situation:
Holly wants to save money for an
emergency. Holly invests $1,000 in an
account that pays an interest rate of
6.25%.
How many years will it take for the account to reach $5,500? Round to the nearest hundredth.

Answers

5years it would take him to his account

Solve the inequality. g – 6 > –1

Answers

Answer:

g>5

Step-by-step explanation:

Solve system of equations for x + y: 3x + 2y = -18 & 2x + 9y =-12

Answers

Answer:

(- 6, 0 )

Step-by-step explanation:

Given the 2 equations

3x + 2y = - 18 → (1)

2x + 9y = - 12 → (2)

Multiplying (1) by 2 and (2) by - 3 and adding will eliminate the term in x, that is

6x + 4y = - 36 → (3)

- 6x - 27y = 36 → (4)

Add (3) and (4) term by term to eliminate x

- 23y = 0

y = 0

Substitute y = 0 into either of the 2 equations and evaluate for x

Substituting into (1)

3x + 0 = - 18

3x = - 18 ( divide both sides by 3 )

x = - 6

Solution is (- 6, 0 )

determine how many different values can arise by inserting one pair of parentheses into the given expression. 3 − 7 − 9 − 5

Answers

Answer:

Step-by-step explanation:

(3 - 7) - 9 - 5 = -4 - 9 - 5

                   = -18

3 - (7 - 9) - 5 = 3 - (-2) - 5

                    = 3 + 2 - 5

                    = 5 - 5

                    = 0

3 - 7 - (9 - 5) = 3 - 7 - 4

                    =  3 - 11

                    = -8

QUESTION 4 What is the area of the trapezoid?

Answers

Answer:

A =275.88 m^2

Step-by-step explanation:

The area of a parallelogram is found by

A = bh

A = 24.2 * 11.4

A =275.88 m^2

Answer:

275.88

Step-by-step explanation:

Translate ƒ(x) = |x| so that it's translated down by 2 units and to the left 6 units. What's the new function g(x)?

A) g(x) = |x – 6| + 2
B) g(x) = |x – 6| – 2
C) g(x) = |x + 6| + 2
D) g(x) = |x + 6| – 2

Answers

Answer:

  D)  g(x) = |x +6| -2

Step-by-step explanation:

To translate f(x) h units to the right and k units up, you use the transformation ...

  g(x) = f(x -h) +k

You want to translate your function 6 units left and 2 units down, so (h, k) = (-6, -2) and the transformed function is ...

  g(x) = |x +6| -2

D) g(x) = |x + 6| - 2

Please find the VOLUME of this figure... Write the formula and plug in the values... Write your answer with units and box your answer

ALSO

What is this shape called

Answers

Answer:

Cuboid ( rectangular prism)

[tex]v = 140 {cm}^{3} [/tex]

Step-by-step explanation:

[tex]volume = whl \\ = 5 \times 4 \times 7 \\ = 20 \times 7 \\ = 140 {cm}^{3} [/tex]

Which of the four angles marked on the picnic table is obtuse?

Answers

Answer:

Angle 1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

The others are all acute angles, and we can see that 1 seems to be slightly larger than a right angle.

Model the expression as groups of x + 2. There are x tiles. There are + 1 tiles. The equivalent expression is .

Answers

Answer:

x + 2 = 3

Step-by-step explanation:

x is always = to 1

Answer:

3

3

3

3x + 3

Step-by-step explanation:

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