Please help me find the circumference of the circle!

Please Help Me Find The Circumference Of The Circle!

Answers

Answer 1

Answer:

[tex]C=59.6902604182[/tex]

Step-by-step explanation:

The formula to calculate the circumference of a circle given the diameter is:

[tex]C=\pi d[/tex]

Substitute and solve:

[tex]C=\pi \times19=59.6902604182[/tex]
[tex]C=59.6902604182[/tex]

Since the question doesn't say to round your answer is "59.6902604182."

Hope this helps.


Related Questions

????????? help ?????????? please

Answers

Answer:

(y-x=1.75)×2

2y-2x=3.5

2y-2x+4x-2y=3.5+4

2x. =7.5

X=3.75

y-x=1.75,

y. =1.75+3.75

y=5.5

The quadratic functions shown are written in factored form. The roots of a quadratic function will make the factors equal to 0.

Drag each function to show whether it has roots at x=−1 and x=5, roots at x=1 and x=−5, or neither.

Answers

Answer:

Roots x = -1 and x =5

k(x) = (x + 1)(x - 5)

m(x) = 1/2(x + 1 )(2x - 10)

Roots x = 1 and x = -5

n(x) = (3x + 15)(x - 1)

f(x) = (x - 1)(x + 5)

q(x) = (2x - 2)(3x + 15)

Neither

h(x) = 1/2(x + 1)(2x - 20)

Step-by-step explanation:

The function k(x) and m(x) has root x=-5 and x=5 The function n(x),q(x) and f(x) has roots x=1 and x=-5.h(x) has no roots from roots at x=−1 and x=5, and x=1 and x=−5.

We have given that ,the quadratic functions shown are written in factored form. The roots of a quadratic function will make the factors equal to 0.

What are the step for finding the polynomial from its root?

1. Write root as factor changing the sign and put each factor in paranthesis

2.Multiply paire of roots together using box to find the multiplication

3.Make sure that each factor multiplied by every other factor.

The function has roots x = -1 and x =5

[tex]k(x) = (x + 1)(x - 5)\\\\k(x)=x^2-5x+x-5\\k(x)=x^2-4x-5\\[/tex]

[tex]m(x) = 1/2(x + 1 )(2x - 10)\\m(x)=1/2(2x^2-10x+2x-10)\\m(x)=1/2(2x^2-8x-10)\\m(x)=x^2-4x-5[/tex]

The function k(x) and m(x) has root x=-5 and x=5

The function has roots x = 1 and x = -5

[tex]n(x) = (3x + 15)(x - 1)\\n(x)=3x^2-3x+15x-15\\n(x)=3x^2+12x-15\\n(x)=1/3(x^2+4x-5)[/tex]

[tex]f(x) = (x - 1)(x + 5)\\f(x)=x^2+5x-x-5\\f(x)=x^2+4x-5[/tex]

[tex]q(x) = (2x - 2)(3x + 15)\\q(x)=6x^2+30x-6x-30\\q(x)=6x^2+24x-30\\q(x)=1/6(x^2+4x-5)[/tex]

The function n(x),q(x) and f(x) has roots x=1 and x=-5

h(x) = 1/2(x + 1)(2x - 20)

h(x) has no roots from roots at x=−1 and x=5, and x=1 and x=−5.

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x - (-3) + 8 - 2x - 6 =

Answers

Answer:

-x + 5

Step-by-step explanation:

x - (-3) + 8 - 2x - 6 = x - 2x + 3 + 8 - 6 = -x + 5

Answer:

[tex] \sf \: -x + 5 [/tex]

Step-by-step explanation:

Given expression,

→ x - (-3) + 8 - 2x - 6

Let's simplify the expression,

→ x - (-3) + 8 - 2x - 6

→ x + 3 + 8 - 2x - 6

→ (x - 2x) + (3 + 8 - 6)

→ (-x) + (5)

→ -x + 5

Hence, the answer is -x + 5.

i need help with this math question HELP

Answers

i can’t see anything

The two smaller angles of a right triangle have equal measures. find the measure of all three angles.

Answers

Answer:

Step-by-step explanation: Because all three angles of the triangle must equal to 180 degrees, the two smaller angles of the right triangle must be 45 degrees. This is because a right angle always is 90 degrees and because you know that the other two angles are the same, and it must all equal to 180, the angles must be 45 degrees, 45 degrees, and 90 degrees.

Angle 1: (right angle) 90 degrees

Angle 2: 45 degrees

Angle 3: 45 degrees

There are 12 girls and 16 boys in Mr jonsons 3rd period class of these students 3 girls and 4 boys wear glasses what percentage of the Stu in Mr jonsons class wear glasses

Answers

Answer:

  25%

Step-by-step explanation:

Of the 12 girls and 16 boys in Mr. Johnson's class, 3 girls and 4 boys wear glasses. You want to know the percentage of students in the class who wear glasses.

Percentage

The percentage is the fraction multiplied by 100%. The fraction is the ratio of glasses-wearers to total students.

  percentage = (girls w/ glasses + boys w/ glasses)/(girls + boys)×100%

  percentage = (3 +4)/(12+16) × 100% = 7/28 × 100% = 25%

25% of the students in Mr. Johnson's class wear glasses.

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3. Tell whether the set of ordered pairs {(3, 2), (4, 3), (5, 4), (6, 5)} satisfies a linear function. Explain.
a. No; there is no constant change in x that corresponds to a constant change in y.
b.
No; there is a constant change in x that corresponds to a constant change in y.
Yes; there is a constant change in x that corresponds to a constant change in y.dd T
Yes; there is no constant change in x that corresponds to a constant change in y.
d.
Find the x and
conto

Answers

The given set of ordered pairs does not satisfy a linear function.

What is a linear function?

A linear function is one that, when plotted, forms a straight line. Therefore, non-linear functions are all non-linear functions. We can discern if a function is linear or non-linear from its input/output table or equation, but graphing may be the quickest way to do it.

Given:

The given set of ordered pairs is:

{(3, 2), (4, 3), (5, 4), (6, 5)}

To find:

Whether the given set of ordered pairs satisfies a linear function or not.

Explanation:

The slope of a linear function is:

m = (y₂ - y₁)/ (x₂ -x₁)

The slope of the linear function passes through the points  and  is:

m₁ = (3-1)/(3-1)

m₁ = 2/2

m₁ = 1

The slope of the linear function passes through the points  and  is:

m₂ = (9-3)/(5-3)

m₂ = 6/2

m₂ = 3

Therefore m₁ ≠ m₂ therefore the given set of ordered pairs does not satisfy a linear function.

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Matthew's total points scored in basketball this season were 168 points. He scored 147 of those points in the regular season and the rest were scored in his only playoff game. What percent of his total points did he score in the playoff game?

Answers

Answer:

12.5%

Step-by-step explanation:

He scored [tex]168-147=21[/tex] points in the playoff game.

This is equal to [tex]\frac{21}{168}(100)=12.5\%[/tex].

Circles centered at $A$ and $B$ each have radius 2, as shown. Point $O$ is the midpoint of $\overline{AB}$, and $OA

Answers

The distance between the two circles is 5.

The distance between two circles is the difference between the sum of their radii and the distance between their centers. In the given diagram, the radius of the circles centered at $A$ and $B$ is 2, and the distance between their centers is the length of $\overline{AB}$, which is 5. Therefore, the distance between the two circles is 5 - (2 + 2) = 5.

The distance between the two circles is 5.

The distance between two circles is the difference between the sum of their radii and the distance between their centers.

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Pls help due in 5 mins

Answers

The given algebraic equation can be written in many ways as shown.

What is algebraic equation?

The term "algebraic equation" refers to a formulation of the equality of two expressions using the algebraic operations of addition, subtraction, multiplication, division, raising to a power, and extraction of a root on a set of variables.

Solution:-

-5x-15+25x-30

it can be written as

-5(x+3-5x+6)

20x-45

5(4x-9)

and also

-5(9-4x)

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Find the equation that is equivalent to [tex]-5x-15+25x-30[/tex].

First, complete arithmetic operations on linear equations [tex]-5x-15+25x-30[/tex]

*Remember : how to complete arithmetic operations on linear equations, grouping terms with the same variable and then adding them up

[tex]-5x-15+25x-30 = -5x+25x-15-30=20x-45[/tex]

Then, find the common factors of [tex]20x[/tex] and [tex]-45[/tex].

Both have the same factor is [tex]-5[/tex].

Use the distributive property to find the equation that is equivalent.

[tex]20x-45=-5(\frac{20x}{-5}-\frac{45}{-5} )=-5(-4x-(-9))=-5(-4x+9)[/tex]

So, [tex]-5x-15+25x-30[/tex] equivalent to [tex]-5(-4x+9)[/tex]

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how do you say 250.611 in words please do not lie

Answers

Two hundred fifty point six hundred eleven

Answer:

two hundred fifty and six hundred elensths (i dont remember the end)

Step-by-step explanation:

Tell whether the system has one solution, infinitely many solutions, or no solution.
25y = - 30x + 35
6x + 5y = 7
Choose the correct answer below.
O A. The system has infinitely many solutions.
O B. The system has one solution.
O C. The system has no solution.

Answers

C. The system has no solution.

Is 2x 3 a linear function?

Answers

Answer:

yes

Step-by-step explanation:

The word linear is used for a straight line. A linear function is a function of a straight line, which means that the degree of a linear function must be 0 or 1 . In this case, The degree of f(x)=2x−3 f ( x ) = 2 x - 3 is 1 , which makes the function a linear function.

Need help with this! Due in 10 mins please

Answers

True for some cases

Answer:

I think the third option

Step-by-step explanation:

Have a nice day! Hope this helps! Owa Owa!!!!

how to solve the Quadratic formul​

Answers

Answer:

The answer is x=-6, x=8

Step-by-step explanation:

I recommend using the quadratic formula to solve this problem.

x^2=a

-2x=b

-48=c

Plug it into the quadratic formula.

New equation:[tex]\frac{2+-\sqrt{(-2)^2-4(1)(-48)}}{2(1)}[/tex]

Simplify

Equation: [tex]\frac{2+-\sqrt{4+192}}{2}[/tex]

Add 4 and 192.

Equation: [tex]\frac{2+-\sqrt{196}}{2}[/tex]

Do the square root of 196.

Equation: [tex]\frac{2+-14}{2}[/tex]

Make into two different equations.

Equation 1: [tex]\frac{2+14}{2}[/tex]

Equation 2: [tex]\frac{2-14}{2}[/tex]

Solve the two equations and you will get -6 and 8.  Hope this helps!

[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]

Solve using the quadratic formula ⇨ x² - 2x - 48 = 0.

[tex] \large \boxed{\mathbb{ANSWER \: WITH \: EXPLANATION} \downarrow}[/tex]

[tex] \sf \: x ^ { 2 } - 2 x - 48 = 0[/tex]

All equations of the form ax² + bx + c = 0 can be solved using the quadratic formula: [tex]\sf \frac{-b±\sqrt{b^{2}-4ac}}{2a}[/tex]. The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction.

[tex] \sf \: x^{2}-2x-48=0 [/tex]

This equation is in standard form: ax² + bx + c = 0 Substitute 1 for a, -2 for b and -48 for c in the quadratic formula.

[tex] \sf \: x=\frac{-\left(-2\right)±\sqrt{\left(-2\right)^{2}-4\left(-48\right)}}{2} \\ [/tex]

Square -2.

[tex] \sf \: x=\frac{-\left(-2\right)±\sqrt{4-4\left(-48\right)}}{2} \\ [/tex]

Multiply -4 times -48.

[tex] \sf \: x=\frac{-\left(-2\right)±\sqrt{4+192}}{2} \\ [/tex]

Add 4 to 192.

[tex] \sf \: x=\frac{-\left(-2\right)±\sqrt{196}}{2} \\ [/tex]

Take the square root of 196.

[tex] \sf \: x=\frac{-\left(-2\right)±14}{2} \\ [/tex]

The opposite of -2 is 2.

[tex] \sf \: x=\frac{2±14}{2} \\ [/tex]

Now solve the equation [tex]\sf\:x=\frac{2±14}{2}[/tex] when ± is plus. Add 2 to 14.

[tex] \sf \: x=\frac{16}{2} \\ [/tex]

Divide 16 by 2.

[tex] \boxed{ \boxed{ \bf \: x=8 }}[/tex]

Now solve the equation [tex]\sf\:x=\frac{2±14}{2} [/tex] when ± is minus. Subtract 14 from 2.

[tex] \sf \: x=\frac{-12}{2} \\ [/tex]

Divide -12 by 2.

[tex] \boxed{\boxed{ \bf \: x=-6 }}[/tex]

The equation is now solved.

[tex] \underline{ \bf \: x=8 }\\ \underline{ \bf \: x=-6 }[/tex]

find the equation of the line passes through the point (-1,2) and making an angle of 45° with the line x-y+1=0​

Answers

Answer:

Step-by-step explanation:

line given is x-y+1= 0

you can rewrite it in slope intercept y=mx+b where m is the slope, and b is the y-intercept where the line meets the y-axis

x-y+1 =0 subtract x and 1 from both sides of the equation

-y = -x-1 multiply both sides by -1

y = x+1 so the slope of this line is 1 and the y-intercept is 1

If you draw this line you can see that there are actually 2 lines that form 45° angles with y=x+1 and pass through (-1, 2), one is vertical x= -1 and one horizontal y =2

Convert the number into standard form, please!

Answers

Convert from number format to standard form as a decimal multiplied by a power of 10.

What is standard form?Standard form is a way of writing a number so it is easier to read. It is often used for very large or very small numbers. Standard form is like scientific notation and is typically used in science and engineering.A number is written in standard form when it is represented as a decimal number times a power of 10.As an example, consider the speed of light which travels at about 671,000,000 miles per hour. Written in standard form this number is equivalent to 6.71 x 108.

step 1

convert 1.5806*10rais to 4

Convert to decimal notation

1.5806*10^4

The exponent is 4, making it 10 to the power of 4. As the exponent is positive, the solution is a number greater than the origin or base number. To find our answer, we move the decimal to the right 4 time(s)

1.5806 ->15806

step 2

final result

15806

Simplify the expression

1.581*10^4

Simplify exponents and square roots

1.581*10^4

10 ^4 = 10 × 10 × 10 × 10 = 10,000

1.581*10000

Perform any multiplication or division, from left to right:

1.581*10000

15806

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some helppp me plzzz

Answers

Answer:

-2, 4

-1, -2

0, 0

1, 2

2, 4

Step-by-step explanation:

X. Y

-2 = 4

-1 = 2

0 = 0

1 = -2

2 = -4

The sum of -3 times x +6.3 what are all the possible values of x

Answers

So x = 2.1 is the only possible value of x that makes the equation true.

Define Equation.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

Define Algebraic expression.

An algebraic expression in mathematics is an expression created using variables, constant algebraic numbers, and algebraic operations. A good example of an algebraic expression is 3x2 2xy + c.

The equation is given as follows:

-3x + 6.3 = 0

To find the value of x, we need to isolate x on one side of the equation. We can do this by adding 3x to both sides:

-3x + 3x + 6.3 = 0 + 3x

6.3 = 3x

Now we can divide both sides by 3:

x = 6.3/3

x = 2.1

So x = 2.1 is the only possible value of x that makes the equation true.

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In ΔSTU, the measure of ∠U=90°, TU = 28 feet, and ST = 39 feet. Find the measure of ∠T to the nearest tenth of a degree?

Answers

Answer:

∠T≈44.1

Step-by-step explanation:

Please see the attached image.

Relative to ∠T, we know the adjacent side and the hypotenuse, 28 and 39 respectively.

We can use a trig function to solve for ∠T. When given the adjacent side and hypotenuse, we can use cosine.

The cosine of an angle is the adjacent side to that angle over the hypotenuse.

cos(T)=28/39

T=[tex]cos^-1[/tex](28/39)

T≈44.1

Solve for x using what you know about interior angles of the shape

Answers

Answer:

117

Step-by-step explanation:

The figure is five sided, therefore the sum of the angles = (5-2)180

                                                                                             = 3*180

                                                                                             = 540

113 + 123+97+90(since its right angles)+y(unknown) = 540

423 + y = 540

y = 540 - 423

y = 117

Let the angle vertically opposite to y be z

y = z (vertically opposite angles)

z = 117

x = 117 (Corresponding angles are equal)

Hope u understand.

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What is the sign of -4 divided by -8?
Choose 1 answer:
Positive
B
Negative
Zero

Answers

Answer:

Positive

Step-by-step explanation:

Positive / positive = positive

positive / negative = negative

negative / negative = positive

negative/ positive = negative

Sign of -4 divided by -8 we get positive expression.

Here we have to find the sing of expression,

When -4 divided by -8

Since we know that,

Dividing two fractions is equivalent to multiplying the first fraction by its reciprocal. The first step in splitting fractions is to get the reciprocal of the second fraction (reverse the numerator and denominator). Then, multiply the numerators.

We can write it,

-4 divided by -8  = -4/-8

                            = (4/8)x(-1/-1)

                            =  1/2    its a positive number.

Hence,

-4 divided by -8  = 1/2

Hence we get positive expression.  

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Did I do the transformation correctly?

Answers

Answer:

I believe you're using a tool that I'm not gonna say because Brainly doesn't allow such sins, haha. I bet the name of the tool you're using starts with a K, correct?

Anyways, I don't think you can add values such as a, h, k. The only values you're allowed to add are x and y :(

Step-by-step explanation:

Yes you have answered it correctly

Which graph represents the equation y equals one half times x minus 1?

graph of a line passing through the points negative 2 comma negative 2 and 0 comma negative 1

graph of a line passing through the points negative 2 comma 0 and 0 comma 1

graph of a line passing through the points negative 2 comma negative 3 and 0 comma negative 2

graph of a line passing through the points negative 4 comma 0 and 0 comma 2

Answers

The correct graph which represents the equation y = 1/2x - 1 is,

⇒ Graph of a line passing through the points negative 2 comma negative 2 and 0 comma negative 1.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The equation is,

⇒ y = 1/2x - 1

Now, After draw the equation we get;

Graph of a line passing through the points (-2, - 2) and (0, - 1).

Thus, The correct statement is,

⇒ Graph of a line passing through the points negative 2 comma negative 2 and 0 comma negative 1.

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need this rn
solving system of linear equation in two variables. Show your COMPLETE SOLUTION
1) 4x + 8y = 24 2) 2x + y = 19 3) 3x + y = 15
4x + 2y = 12 x + y = 11 x + 2y = 10

Answers

The solution to the system of equations is x = 4 and y = 2.

Calculations

We would use the elimination method to solve the system of equations:

4x + 8y = 242x + y = 193x + y = 154x + 2y = 12x + y = 11x + 2y = 10

Let's eliminate the variable y by adding equations 1 and 2:

4x + 8y = 24

2x + y = 19

.

.

.,

6x + 9y = 43

Now we can eliminate the variable x by subtracting equation 3 from the above equation:

6x + 9y = 43

3x + y = 15

.

.

.

3x + 8y = 28

We now have an equation with one variable: 3x + 8y = 28. We can solve for x by dividing both sides by 3:

x = (28 - 8y) / 3

Now we can substitute this expression for x into one of the original equations and solve for y. Let's use equation 4:

4x + 2y = 12

Substituting x = (28 - 8y) / 3:

4((28 - 8y) / 3) + 2y = 12

If we simplify:

28 - 8y + 2y = 128y = 16y = 2

Finally, we can use this value of y to find x by plugging it into the expression we found earlier:

x = (28 - 8(2)) / 3

x = (28 - 16) / 3

x = 12 / 3

x = 4.

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what is the slope intercept form of this equation: -12x + 3y = 3*

Answers

Answer:

y=4x+1

Step-by-step explanation:

i hope this helps :)

The scale drawing of a building has a height of 10 centimeters. The actual building is 20 feet high. How many centimeters in the scale drawing represent one foot on the actual building?

a. 1/2
b. 30
c. 10
d. 2​

Answers

Answer: 1/2

Step-by-step explanation:

The question is asking you to find how many centimeters in the scale drawing equal 1 foot on the actual building. The answer will be 1/2 because 1 centimeter is equal to 2 feet in reality. But since we want to know the answer of how many centimeters is in 1 foot, we will divide that in half, to get an answer of 1/2 centimeter, or A.

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DeAndre is 18 miles into a 54-mile backpacking trip in the wilderness.
DeAndre can hike 12 miles per day. How many more days does DeAnd
need to finish?
DeAndre needs
more days.

Answers

3 days
Explanation below

20 points, pls help, its angles​

Answers

The angles are acute and obtuse angles and and it would be Q=4 if you need Q

Someone help me with this please

Answers

Answer:

A

Step-by-step explanation:

A triangular prism has two rectangles on each side, then two triangles on the other sides. I hope this helps! :)

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