A circle has an area of 153.86 square inches. Using 3.14 for pi, find the radius and circumference of the circle. Round your answer to the nearest hundredth when necessary.

Answers

Answer 1
Final answer:

To determine the radius and circumference of a circle with an area of 153.86 square inches, one must first divide the area by 3.14 to solve for r², then take the square root to find the radius, and finally use the radius to calculate the circumference. The radius is approximately 7.00 inches, and the circumference is approximately 43.96 inches.

Explanation:

To find the radius and circumference of a circle with an area of 153.86 square inches, we first use the formula for the area of a circle, which is A = πr². Given that A is 153.86 and π is approximately 3.14, we can rearrange the formula to solve for the radius (r) as follows:

Divide the area by π:  r² = A / π = 153.86 / 3.14.Take the square root of the result to find the radius: r = √(r²).Use the radius to calculate the circumference using the formula C = 2πr.

Performing the calculations, we get:

r² = 153.86 / 3.14 = 48.99r = √(48.99) ≈ 7.00 inches (rounded to the nearest hundredth)C = 2 * 3.14 * 7.00 ≈ 43.96 inches (rounded to the nearest hundredth)

Therefore, the radius of the circle is approximately 7.00 inches, and the circumference is approximately 43.96 inches.

Answer 2
Final answer:

To find the radius from the area of a circle, use the formula r = sqrt(A/pi), with A = 153.86 sq inches and pi as 3.14. Once the radius is determined, calculate the circumference with the formula C = 2*pi*r. Both values should respect the significant figures.

Explanation:

The student is asking for help finding the radius and circumference of a circle given its area using 3.14 for pi. To find the radius, we start with the area formula for a circle, which is A = πr². Given the area A as 153.86 square inches, and using 3.14 for π, the radius r can be found by rearranging the formula to r = √(A/π). Plugging the numbers in, we get r = √(153.86/3.14), which we then calculate.

Once we have the radius, we can find the circumference C of the circle using the formula C = 2πr. Now that we know the radius, we plug the value into this formula to get the circumference.

Both radius and circumference should be calculated carefully, keeping in mind significant figures. The radius should then be used to calculate the circumference, which will be limited by the same degree of precision.


Related Questions

John concludes that, since (x - 5) is a factor of the polynomial x2 - 25, if he performed the long division (x2 - 25) ÷ (x - 5), the remainder would be zero. This is an example of ___________ reasoning(x2 - 25)

Answers

John concludes that, since (x - 5) is a factor of the polynomial x2 - 25, if he performed the long division (x2 - 25) ÷ (x - 5), the remainder would be zero. This is an example of deductive reasoning(x2 - 25).

Answer:

Deductive reasoning

Step-by-step explanation:

Given : John concludes that, since (x-5) is a factor of the polynomial [tex]x^2-25[/tex], if he performed the long division [tex](x^2-25)\div (x-5)[/tex], the remainder would be zero.  

To find : This is an example of ___________ reasoning [tex]x^2-25[/tex]?

Solution :

The above situation make conclusion when we know the fact that (x-5)

is the factor as the factor of polynomial divide it completely.

Therefore, This is the example of deductive reasoning.

Deductive reasoning is the process by which a person makes conclusions based on previously known facts.

The set of possible values of m is {5,7,9}. What is the set of possible values of k if 2k=m+3

Answers

when m = 5:

2k = 5+3

2k = 8

k = 8/2

k=4


when m = 7

2k = 7+3

2k =10

k = 10/2

k = 5


when m = 9

2k = 9+3

2k = 12

k = 12/2

k = 6

k = {4,5,6}

How to know whether to use sin or cos in physics?

Answers

Sine and cosine (and trigonometric functions in general) are used extensively in physics, and neither really has priority - it depends on the particular problem you're working on. Is there a particular problem that prompted your question?

Together, teammates pedro and ricky got 2671 base hits last season. pedro had 277 more hits than ricky. how many hits did each player​ have?

Answers

Final answer:

To find out how many hits each player had, we set up a system of equations and solve for the variables. Pedro had 2474 hits and Ricky had 1197 hits.

Explanation:

To solve this problem, we need to set up a system of equations. Let's represent the number of hits Pedro had as x and the number of hits Ricky had as y. We are given that their combined hits is 2671, so we can write the equation:

x + y = 2671

Additionally, we are given that Pedro had 277 more hits than Ricky. This can be represented as:

x = y + 277

We can now substitute the second equation into the first and solve for y:

y + 277 + y = 2671

2y = 2394

y = 1197

Now we can substitute the value of y back into the first equation to solve for x:

x + 1197 = 2671

x = 2474

Therefore, Pedro had 2474 hits and Ricky had 1197 hits.

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In which quadrant is θ located if cscθ is negative and tanθ is positive?

Answers

If cos is negative and tan is positive it's located in third quadrant (3)

Answer:

[tex]\theta[/tex] is located in 3rd Quadrant.

Step-by-step explanation:

We are given that [tex]cos\,\theta[/tex]  is negative  and [tex]tan\,\theta[/tex]  is positive

We have to find Quadrant in which [tex]\theta[/tex] is located.

We have 4 Quadrants.

In 1st Quadrant , All trigonometric ratios are positive.

In 2st Quadrant , sin and cosec are positive while others are negative.

In 3rd Quadrant , tan and cot are positive while others are negative.

In 4th Quadrant , cos and sec are positive while others are negative.

Therefore, According to given information [tex]\theta[/tex] located in 3rd Quadrant.

Match the inequality to the graph of its solution.
a. n/4 ≤ -1
b. -10 ≥ -100
c. 5x ≥ 20

Answers

B. -10x>= -100 is for the first graph.
A. n/4<= -1 is for the second song
Hope this helps

Answer:

its B

Step-by-step explanation:

6% of 124 =
7.44
0.744
74.4
744
If you could explain would be great

Answers

To turn a percentage into a decimal, divide it by a hundred. So, 6% --> 6/100 which is 0.06.  To find a percentage of a number, multiply the number by the percent in decimal form. In this case, 124 x 0.06. The answer is 7.44. So 6% of 124 is 7.44

A student rolls a standard number cube. What is the probability the student rolled a 4, given that the number rolled was greater than or equal to 2?

Answers

<><> answer: B. 1/5 <><>

The amount of paint needed to cover the walls of a room varies jointly as the perimeter of the room and the height of the wall. if a room with a perimeter of 70 feet and 8-foot walls requires 5.6 quarts of paint, find the amount of paint needed to cover the walls of a room with a perimeter of 65 feet and 10-foot walls

Answers

the answer to the question is 6.5 quarts because according to this 1 quart will cover 1600 square feet

Find the value of x for the rectangle

perimeter=26 meters
rectangle one the bottom is (x+3) m
on the right side of the rectangle (2x-6)m

Answers

(x+3)(2x-6)=26

2x(to the second power)-18=26

2x(to the second power) -18-26=26-26

2x(to the second power)-44 = 0

x=square root of 22,x= negative square root of 22

decimal form : x = 4.69042,x= -4.69042

what is the difference between 506 and 233

Answers

273 is the answer.
Hope it helps!
506 - 233 = 273
answer
the difference between 506 and 233 is 273

Study the Proof Given.

List the reasons for Items 2,3, & 4.

Right the number and then the answer.

Question 1 options:

Answers

2. Definition of midpoint
3. Given
4. Transitive property

The united states exports over 200 billion pounds of coal how many tons does the united states export

Answers

I think that would be 100 million pounds of coal.

Answer:100,000,000 tons

word form: one hundred million tons

Step-by-step explanation:

How long will it take you to bike a distance of 108 miles at a speed of 24 miles per hour ?

Answers

Just divide 108 by 24 and you'll figure out how many hours.



(Also, if you don't want to do it the answer is 4.5 (4 hours and 30 minutes)

:D
4 and a half hours (4 hours & 30 minutes)

Solve:
r/5 - 6 = -1

A) r = 1
B) r = 5
C) r = 10
D) r = 25

Answers

r/5 - 6 = -1

add 6 to both sides

r/5 = 5

multiply both sides by 5

r = 5 *5 = 25

r = 25

i believe its c?????

Chloe draws three parallelograms. In each figure, she measures a pair of angles, as shown. What is a reasonable conjecture for Chloe to make by recognizing a pattern and using inductive reasoning?

a) In a parallelogram, consecutive angles are supplementary.
b) In a parallelogram, all angles are congruent.
c) In a parallelogram, all angles are supplementary.
d) In a parallelogram, consecutive angles are congruent.

Answers

The best answer is A) In a parallelogram, consecutive angles are supplementary.
Final answer:

The conjecture Chloe can make based on the given information is that in a parallelogram, consecutive angles are congruent.

Explanation:

Chloe's conjecture, based on the pattern she observed, would be that in a parallelogram, consecutive angles are congruent. To support this conjecture, we can explain that a parallelogram has opposite sides that are parallel, and therefore, the opposite angles are congruent. Since the consecutive angles are adjacent to these opposite angles, they must also be congruent.

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A woman 5 ft tall walks at the rate of 3.5 ft/sec away from a streetlight that is 12 ft above the ground. at what rate is the tip of her shadow moving? at what rate is her shadow lengthening? ⇒

Answers

Refer to the diagram shown below.

The woman walks at a rate of 3.5 ft/s away from the streetlight. Therefore
[tex] \frac{da}{dt} =3.5 \, ft/s[/tex]

The length of the shadow changes at the rate
[tex] \frac{dx}{dt} [/tex]

Because triangles ACE and BCD are similar  (AAA), therefore
[tex] \frac{AC}{BC}= \frac{AE}{BD} \\\\ \frac{a+x}{x} = \frac{12}{5} [/tex]
12x = 5a + 5x
7x = 5a

Therefore
[tex] \frac{dx}{dt} = \frac{5}{7} \frac{da}{dt} = \frac{5}{7} (3.5 \, ft/s) = 2.5 \, ft/s[/tex]

Answer: 2.5 ft/s

The rate at which her shadow is lengthening is 2.5ft/sec

Triangular altitude theorem:

To get the rate of her shadow lengthening, we will use the similarity theorem of a triangle.

Find the triangle attached. From the triangle;

[tex]\frac{EA}{AC} =\frac{DB}{BC}[/tex]

Substitute the sides as given in the diagram:

[tex]\frac{12}{x+a} =\frac{5}{x}\\12x = 5(x+a)\\ 12x=5x+5a\\7x = 5a[/tex]

Differentiate both sides with respect to t

[tex]7\frac{dx}{dt} = 5\frac{da}{dt} \\7\frac{dx}{dt}=5(3.5)\\7\frac{dx}{dt}=17.5\\\frac{dx}{dt} = 2.5ft/sec[/tex]

The rate at which her shadow is lengthening is 2.5ft/sec

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I need help with proofs

Answers

Proofs are often over-complicated in math class. They are basically a step by step way of doing an assignment. There can be ones that are done using only math equations, but there are also ones that you write out as you would an essay, and those are my personal favorite. In those, you basically write out moment by moment how you find out the answer to a given problem.

3xy=27 linear or not

Answers

Yes it is linear, because the final one is y=1/3x+9

The given function 3xy = 27 is not a linear function.

What are functions?

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

What is a linear function?

A linear function is defined as when the function has the highest degree of expression is 1, such as y = mx + c.

here,
Given function,
3xy = 27,


Simplifying the function,
3xy = 27
xy = 27/3
y = 9/x

Since, from the definition of the function, the given function is 9 reciprocal of x and is said to be a reciprocal function.

Thus, the given function 3xy = 27 is not a linear function.

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five times the sum of a number and 27 is greater than or equal to six times the sum of the number and 26 what is the solution to set of the problem

Answers

5(n + 27) >= 6(n + 26)

5n + 135 >= 6n + 156

-n >= 21

n <= -21

Are Abel Fields’s actions protected by the First Amendment?

Answers

According to a 2012 decision by the US Supreme Court, Abel Fields's actions are protected by the First Amendment.


In the fictitious case study scenario of Abel Fields, he claimed to have received a Purple Heart for wounds suffered in combat, when in fact he had never served in the military. He asserted his claim as a freedom of speech issue.


In a real-life decision by the US Supreme Court, United States v. Alvarez, the the Court struck down the Stolen Valor Act of 2005 (signed into law by President G.W. Bush in 2006). The law had criminalized false statements about having a military medal. By a 6-3 majority, the Supreme Court determined that the Stolen Valor Act was unconstitutional under the First Amendment's protection of free speech.

According to a 2012 decision by the US Supreme Court, Abel Fields's actions are protected by the First Amendment.

p(5)=-3+4(5) solve please

Answers

20+-3 is 17
First you do pemdas and multiply 4 and 5 first.
Then you add -3

The point (1, −1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of θ? plz show me how u got the answer

Answers

We can model the problem using a right angle triangle. 

The two sides, AB and BC are equal
By Pythagoras, we find the length of AC = [tex] \sqrt{1^+1^} [/tex] = [tex] \sqrt{2} [/tex]

Using the sin ratio ⇒ sin θ = opposite/hypotenuse, we have
[tex]sin(45)= \frac{1}{ \sqrt{2} }= \frac{ \sqrt{2} }{2} [/tex]

Using the cos ratio ⇒ cos θ = adjective/hypotenuse, we have
[tex]cos(45)= \frac{1}{ \sqrt{2} }= \frac{ \sqrt{2} }{2} [/tex]

Using the tan ratio ⇒ tan θ = opposite/adjective, we have
[tex]tan(45)= \frac{1}{1}=1 [/tex]

The values of sine, cosine, and tangent for angle θ, where (1, -1) is on its terminal side, are sin(θ) = -1, cos(θ) = 1, and tan(θ) = -1, knowing that the point lies in the fourth quadrant.

To find the values of the sine, cosine, and tangent of an angle θ where the point (1, -1) is on its terminal side, we first recognize that this point lies in the fourth quadrant of the coordinate system. In this quadrant, cosine is positive, and sine and tangent are negative.

The point (1, -1) gives us the x and y coordinates on the Cartesian plane, which correspond to the lengths of the adjacent side and the opposite side of the right-angle triangle formed by the radius (hypotenuse) from the origin to the point, and the axes. Assuming we're dealing with a unit circle (which has a radius of 1), we can directly use the coordinates (1, -1) to find the cosine and sine:

cos(θ) = x = 1sin(θ) = y = -1tangent (θ) =  y/x = -1/1 = -1

Hence, for angle θ, cos(θ) is 1, sin(θ) is -1, and tan(θ) is -1.

Given triangle JKL, sin 38 degree equals

Answers

Right triangle
sin(38) = cos(52)

answer
 cos(52)

hope it helps

Answer:

B. [tex]\text{cos}(52^{\circ})[/tex].

Step-by-step explanation:

We have been given a right triangle. We are asked to complete our given statement.

[tex]\text{sin}(38^{\circ})[/tex] equals ___.

We will use identity [tex]\text{sin}(x)=\text{cos}(90-x)[/tex] to solve our given problem.

[tex]\text{sin}(38^{\circ})=\text{cos}(90^{\circ}-38^{\circ})[/tex]

[tex]\text{sin}(38^{\circ})=\text{cos}(52^{\circ})[/tex]

Therefore, [tex]\text{sin}(38^{\circ})[/tex] equals [tex]\text{cos}(52^{\circ})[/tex].

Add the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers of x. Find the sum of 4x3 + 2x2 - 4x + 3 and 7x3 -4x2 + 7x + 8.

Answers

4x^3 + 2x^2 - 4x + 3 + 7x^3 - 4x^2 + 7x + 8 =
11x^3 - 2x^2 + 3x + 11 <==

** its just a matter of combining like terms

Answer:

11x^3 - 2x^2 + 3x + 11

Step-by-step explanation:

we need to find the sum of 4x^3 + 2x^2 - 4x + 3 and 7x^3 -4x^2 + 7x + 8

To find the sum we add both the polynomials

4x^3 + 2x^2 - 4x + 3 + 7x^3 -4x^2 + 7x + 8

To add the polynomials we combine like terms

4x^3 + 7x^3 = 11x^3

2x^2 - 4x^2 = -2x^2

-4x+7x= 3x

3+8 = 11

So final expression is 11x^3 -2x^2 +3x+11

What is the value of x?

A. 25 cm

B. 7 cm

C. 29 cm

D. 35 cm

Answers

Answer:

  29 cm

Step-by-step explanation:

The central triangle is isosceles, so the length if its right side (x) is the same as the length of its left side (29 cm).

  x = 29 cm

If a television is $117.00 and was marked down by 10% then what was the original price

Answers

$117.00(10%) = $117.00(0.10) = $11.70
$117.00 + $11.70 = $128.70

Thus, the original price for the television is: $128.70

Each of the 25 students in Mr. McDonald's class sold 16 raffle tickets. If each ticket costs $15, how much money did Mr. McDonald's students raise?

Answers

25 x 16=400
400 x 15 = 6000$
Answer is 6000
240 dollars I think as 16*15 is 240

9. Simplify the expression. 8 – 5(12x + 8) A) 36x + 24 B) –60x – 32 C) –60x + 16 D) –60x + 48

Answers

8 - 5(12x + 8)

8 - 60x - 40 

-60x + (8 - 40)

-60x - 32

hope that helps, God bless!

Please explain this math question to me!


6(4) ÷ 2 − 1 + 5

Answers

6 times 4 is 24, divided by 2 is 12, minus 1 is 11, plus 5 is 16.
Use your order of operations. Parentheses first. You don't have any exponents so you do multiplication and division next from left to right just don't do addition or subtraction yet. After the multiplying and dividing is complete add and subtract from left to right!!!
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