The diameter of a circle is 4 miles. What is the circle's circumference?

Answers

Answer 1

Answer:

C ≈ 12.56 mi

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Geometry

Diameter: d = 2rCircumference: C = 2πr

Step-by-step explanation:

Step 1: Define

d = 4

Step 2: Find Circumference

Rewrite formula:                    C = πdSubstitute:                              C = 4πEvaluate:                                C ≈ 12.56

Related Questions

Let V=ℝ2 and let H be the subset of V of all points on the line 4x+3y=12. Is H a subspace of the vector space V?

Answers

Answer:

No, it isn't.

Step-by-step explanation:

We have [tex]V=IR^{2}[/tex] and let [tex]H[/tex] be the subset of [tex]V[/tex] of all points on the line

[tex]4x+3y=12[/tex]

We need to find if [tex]H[/tex] is a subspace of the vector space [tex]V[/tex].

In [tex]IR^{2}[/tex] all the possibilities for own subspace of the vector space [tex]IR^{2}[/tex] are :

[tex]IR^{2}[/tex] itself.The vector [tex]0_{IR^{2}}=\left[\begin{array}{c}0&0\end{array}\right][/tex]All lines in [tex]IR^{2}[/tex] that passes through the origin  (  [tex]0_{IR^{2}}=\left[\begin{array}{c}0&0\end{array}\right][/tex]  )

We know that [tex]H[/tex] is the subset of [tex]IR^{2}[/tex] of all points on the line [tex]4x+3y=12[/tex]

If we look at the equation, the point [tex]\left[\begin{array}{c}0&0\end{array}\right][/tex] doesn't verify it because :

[tex]4x+3y=12\\4(0)+3(0)=12\\0=12[/tex]

Which is an absurd. Therefore, [tex]H[/tex] doesn't contain the origin (and [tex]H[/tex] is a line in [tex]IR^{2}[/tex]). Finally, it can't be a vector space of [tex]V=IR^{2}[/tex]

You burn 4 Cal/min walking and 10 Cal/min running. You walk 10 to 20 min each day and run 30 to 45 min each day. You never spend more than an hour running and walking together. How much time should you spend on each activity to maximize the number of Calories you burn? Will you have exercised enough to burn off a 500-Calorie meal? A. 50 minutes running, 10 minutes walking; yes. B. 45 minutes running, 15 minutes walking; yes. C. 40 minutes running, 20 minutes walking; no. D. 30 minutes running, 30 minutes walking; no.

Answers

Answer:

I don’t know how to do the explanation but the answer is 15 min waking and 45 running. I got it right on the test

Step-by-step explanation:

I don't know how to solve this.Please help!
3^x=2

Answers

So 3^X= 2 is an exponential equation. The inverse of an exponential in ln. so take ln of both sides to solve.

Another way is to change the exponential into a log equation
So that would be log with base 3 to the power of 2 equals x.

8 less than the length L

Answers

Answer:

L-8=?

Step-by-step explanation:

how many eights are there in three and a quater​

Answers

6 .. hope that answers ur question :)

-4-5(2x -4) = 76
-6
9
-4
7

Answers

9514 1404 393

Answer:

  x = -6

Step-by-step explanation:

-4 -10x +20 = 76 . . . . . eliminate parentheses

-10x = 60 . . . . . . . . . . . subtract 16

x = -6 . . . . . . . . . . . . . . divide by -10

Please help me as soon as possible! :)

1 1/8 + b ≥ 7/16

Answers

Answer: 42

Step-by-step explanation:

Example:

Solve x + 7 < 15

Solution:

x + 7 < 15

x + 7 – 7 < 15 – 7

x < 8

Inequalities Of The Form “x – a < b” or “x – a > b”

Please mark me brainliest if this helped you ! (by clicking the little crown on my answer) it helps a lot thnx! (*≧∀≦*)

The solution of the inequality 1 1/8 + b ≥ 7/16 will be;

⇒ - 11/16 ≤ b

What is Inequality?

A relation by which we can compare two or more mathematical expression is called an inequality.

Given that;

The inequality is,

⇒ 1 1/8 + b ≥ 7/16

Now,

Solve the inequality as;

The inequality is,

⇒ 1 1/8 + b ≥ 7/16

Solve for b as;

⇒ 9/8 + b ≥ 7/16

Subtract 9/8 as,

⇒ 9/8 + b - 9/8  ≥ 7/16 - 9/8

⇒ b ≥ (7 - 18) / 16

⇒ b ≥ - 11/16

⇒ - 11/16 ≤ b

Thus, The solution of the inequality 1 1/8 + b ≥ 7/16 will be;

⇒ - 11/16 ≤ b

Learn more about the inequality visit:

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What is the exact value of sin(75°)?

Answers

Step-by-step explanation:

sin 75°: Now using the formula for the sine of the sum of 2 angles, sin(A + B) = sin A cos B + cos A sin B, we can find the sine of (45° + 30°) to give sine of 75 degrees.

Answer:

D.)

Step-by-step explanation:

Edge

whats the area of a circle if the diameter 6

Answers

Answer:

28.27

Step-by-step explanation:

Answer:

18.84

Step-by-step explanation:

6x3.14 = 18.84. multiply by pi

Is (2, 2) a solution of the inequality y < 3x - 5?

Answers

Answer: it’s not a solution or C

Step-by-step explanation:

the given point is (2,2) there is a x value and a y value

so 2 < 3(2)-5 *we know 3*2 is 6 and 6-5 is 1*

2 does NOT equal to 1

Answer:

Third option, It is not a solution.

Step-by-step explanation:

Graph the greatest integer, f(x) = [x]

Answers

Answer:

Step-by-step explanation:

Help me with this please

Answers

Answer:

The First Table

Step-by-step explanation:

The y-values increase inconsistently, while the other tables are constant.

Can someone help me plz

Answers

Answer:

i think the answer is 7

The answer should be 7

LMC given numbers 60 and 80​

Answers

Question:LCM of 60 and 80

240 is answer

LCM : least common factor
The least common multiple is 240.

What are steps I need to take to find a? Please include working out ❤️❤️

Answers

142-38=104
Это и есть ответ

Use a calculator, spreadsheet, or another tool to solve for the unknown sides of the given right triangle. The length of the hypotenuse is 12. a is the length of the side opposite the 10 degree angle and b is the length of the opposite angle B. Round your answers to four decimal places.

Answers

Answer:

27

Step-by-step explanation:

2 TIMES 3

The length of the side a and b is 2.0837 and 11.8176 respectively.

Length of side a and b to be determine, hypotenuse is 12 and a is the length of the side opposite the 10 degree angle and b is the length of the opposite angle B.

What is trigonometry?

Trigonometry is branch of mathematics that helps in elevation and angle problems.

Let assume that one angle of triangle is right angle.
So in right angles triangle,
hypotenuse = 12
cos10 =  length of b /12
length of b = 12 cos10
length of b = 11.8176

Now,
sin 10 =length of a/ 12
length of a = 12 sin10
length of a = 2.0837

Thus, the length of the side a and b is 2.0837 and 11.8176 respectively.

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Which equation has the solution x=3

Answers

Answer:

6-x=3  4-x=1 96 divided by x = 32

Step-by-step explanation:

Hope this helped! If it did, please mark me as brainilest and give a shot at my 100 points homework/puzzle. Here is the link: https://brainly.com/question/19021808 Thanks!

How many kilometers are in 60 miles? Note: There are 1.609kms in 1mi.

Answers

Answer:

Your answer is 96.5606 Kilometers.

Step-by-step explanation:

1.609 x 60 = 96.5606

Mark as brainliest if it's correct!

Answer:

96.5606kms

Step-by-step explanation:

Mario paid $30 to activate his cellular phone plus $50 per month. Type an equation:_

Answers

Answer:

50x + 30

Step-by-step explanation:

50 is the amount per month and x is how many months he's paying. If he's paying for 5 months then you replace x with 5 so on and so forth. the + 30 is the amount he paid to active his phone

Answer:

pa rompa pero no poden con mi pom pom con pom pom con pom pom

Step-by-step explanation:

Which transformations map the strip patterns onto itself?

Answers

I think it’s b, a horizontal translation and a 180 degree rotation

Answer: D.

A horizontal translation and a glide reflection.

What is the following product?
(5-12-4/5)(512-43
PLEASE HELP ):

Answers

Answer:

-3658.2

Step-by-step explanation:

What is the nth term rule of the linear sequence below?
-9, -5, -1,3,7,...

Answers

Answer:

Step-by-step explanation:

Given sequence

-9, -5, -1,3,7,...

Is A.P(,airthmetic progression)

So

nth term of an A.P =a+(n-1)d

Where a=first term (-9)

D=difference=(-5)-(-9)=4

So nth term=-9+(n-1)4

=4n-13

Answer is 4n-13

Solve for f: (-1/8)f - (3/4) -
(1/4)f = 11

Answers

Answer: The answer is f= –31 1/3.

Step-by-step explanation: To solve for f, you’ll need to simplify the both sides of the equation, and then isolating the variable. Use online advanced calculators to calculate the equation to view all the steps.

If 3x + 7 = 5 for some value of x, then what does the expression 6x +17 equal for the same value of x?

Answers

Answer:

13

Step-by-step explanation:

First, double the first equation.

If 3x+7=5, then 6x+14=10

Since they are asking for 6x+17, the answer is 10+3=13

Hope I helped!

13 hope this helps!!!!

true or false ------- y-intercept is where a point crosses the x-axis

Answers

Answer:

false

Step-by-step explanation:

that would be x-intercept

The y -intercept is the point where the graph crosses the y -axis. So, the statement is true. ANSWER:
True

Find the product. Enter your final answer as a simplified fraction.
-1/8•7•2/5=

Answers

Answer:

-7/20  

Step-by-step explanation:

Answer:

-1/140

Step-by-step explanation:

-1/8*7*2/5

-7/8*2/5

-7/20

In the model for exponential growth or decay, the amount, or size, at t=0 is represented by __ the amount, or size, at time t is represented by __

Answers

1. A0 (small 0)
2.A0^ekt

In the model for exponential growth or decay, the amount, or size, at t=0 is represented by  [tex]N=N_{0}[/tex]. and at time t is represented by [tex]N=N_{0}e^{kt}[/tex]

Let us consider that [tex]N_{0}[/tex]  is the initial amount and N is represent that amount after growth or decay in time t .

Model for exponential growth or decay is,

                                 [tex]N=N_{0}e^{kt}[/tex]

Amount at t=0 is,

                             [tex]N=N_{0}e^{k*0}=N_{0}[/tex]

Learn more:

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Multiply 8674 x 678 is what

Answers

Answer:

5880972

hope it helps..

What would the set notation for the domain and range of the function, (-3, 6), (-2, -3), and (-1, 6)

Answers

Answer:

Domain: {-3, -2, -1}

Range: {-3, 6}

General Formulas and Concepts:

Domain is the set of x-values that can be inputted into function f(x). Range is the set of y-values that are outputted by function f(x).

Step-by-step explanation:

Step 1: Define

(-3, 6)

(-2, -3)

(-1, 6)

Step 2: Identify x-values

x = -3, -2, -1

Step 3: Identify y-values

y = -3, 6, 6

Please answer this question.... You enter a room. 2 dogs, 4 horses, 1 giraffe, and a duck are lying on the bed. 3 chickens are flying over a chair. How many legs are on the ground?​

Answers

Answer:

36 legs

Step-by-step explanation:

Including the chair and yourself

6. You and the legs of the chair.
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