An arc of length 8 in. is intersected by a central angle in a circle with a radius of 3 in. What is the measure of the angle? Round your answer to the nearest tenth.

Answers

Answer 1
Radius r = 3inches
Arc A = 8 inches

We need formula that connects lenght of arc with central angle. That one is fallowing one:

A = 2*r*pi*α/360   where α is central angle. we can see that if α=360, A = 2*r*pi which is exactly the formula for parimeter of circle.

Further more we can express 360 in radians which is 2* pi and get

A = r*α as simpler formula

α = A/r = 8/3 = 2.66666667 ≈ 2.7

Related Questions

Kevin sold 2 unicycles and 1 bicycle for a total of $110. Greg sold 4 unicycles and 3 bicycles for a total cost of $268. What is the cost of 1 bicycle?
Answer

$27

$31

$48

$79
Kevin sold 2 unicycles and 1 bicycle for a total of $110. Greg sold 4 unicycles and 3 bicycles for a total cost of $268. What is the cost of 1 bicycle?
Answer

$27

$31

$48

$79

Answers

The cost of 1 bicycle is $48 by using the system of equations.

What are word problems?

Word problems are a mathematical interpretation by using variables, numbers, and arithmetic operations to solve real-life problems.

From the given information:

kevin: 2U + 3B = 110 --- (1)Greg: 4U + 3B =268 ---- (2)

We have a system of equations, and we can solve for the cost of1 bicycle

Using the Elimination method:

4U + 3B = 268

-2U + 3B = 110

2U + 0    = 158

U = 158/2

U = 79

The cost of 1 bicycle = 4(U) - 268

= 4(79) - 268

= 316 - 268

= $48

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Answer:

$48

Step-by-step explanation:

Got it right on flvs

Bruce reads 3fourths hour each night.how long will he read in 4 nights

Answers

3 fourths of an hour is : (3/4)
(3/4)*4=3 hours

hope this helps!

The distance from the library to the park is 0.7 kilometers how much meters is this

Answers

The distance from the library to the park is 700 meters.

jeremy mowed several lawns to earn money for camp. after he paid $17 for gas, he had $75 leftover to pay towards camp. write and solve and solve an equation to find how much money jeremy earned mowing lawns.

Answers

money earned = e=75+17=92

To find the total amount Jeremy earned from mowing lawns, we set up the equation x - $17 = $75 where x is the total earnings. Solving the equation, we find that Jeremy earned a total of $92.

The amount of money Jeremy earned mowing lawns can be found by setting up a simple algebraic equation. We know that after paying $17 for gas, he had $75 leftover for camp. Therefore, we can write the equation as:

Total Earnings - Gas Cost = Money for Camp

Let x represent the total amount Jeremy earned. The equation will then be:

x - 17 = 75

Now, we solve for x:

x = 75 + 17

x = 92

Jeremy earned a total of $92 from mowing lawns.

A traffic light near a museum is green for 30 seconds, yellow for 5 seconds, and red for 15 seconds.
If 8 vehicles approach the signal, the probability that 3 of them are stopped by the red light is

Answers

The answer I think maybe 8/3 this answer is a fraction of you are looking for one
Answer:

If 8 vehicles approach the signal, the probability that 3 of them are stopped by the red light is:

                                  0.25412184

Step-by-step explanation:

Here we need to use the binomial theorem.

i.e. the probability of k successes out of total n experiments is calculated by the formula:

         [tex]P(X=k)=n_C_kp^k(1-p)^{n-k}[/tex]

where p is the probability of successes.

Here we have p=Probability that signal is red.

i.e. p=15/50=3/10=0.3

Hence, 1-p=0.7

Also we have: n=8

and k=3

Hence,

[tex]P(X=3)=8_C_3\times (0.3)^3(0.7)^{8-3}\\\\\\P(X=3)=\dfrac{8!}{3!\times (8-3)!}\times (0.3)^3\times (0.7)^5\\\\\\P(X=3)=\dfrac{8!}{3!\times 5!}\times 0.00453789\\\\\\P(X=3)=0.25412184[/tex]

                  Hence, the probability is:

                       0.25412184

Find the area of a rectangular garden box if the length is square root of 6ft. and the width is square root of 21 ft. Write the answer in simplest radical form.

2. There is a threshold on a person's weight that tells doctors when a person is at a greater risk of death. In men, ages 40 - 49, that threshold weight is represented by h=12.3 squared 3 square root of T, where h is height in inches and T is the threshold weight. If a doctor told a 43 year old man that his threshold weight was 218 lbs what would that man's height be (in the form of feet -inches: Ex: 5 ft 9 in)?

Answers

1. A = LW

[tex]A = \sqrt{6} \sqrt{21} [/tex]

[tex]A = \sqrt{6 \times 21}

A = \sqrt{2 \times 3 \times 3 \times 7}

A = \sqrt{3^2 \times 14} A = 3\sqrt{14} ~ft^2[/tex]

SOLVE. Show step-by-step solution. 3.2 - 4d = 2.3d + 3

Answers

3.2-4d=2.3d+3 Subtract from both sides 3: 0.2-4d=2.3d Add to both sides 4d: 6.3d=0.2 Dived both sides by 6.3: d=31.5

The solution to the equation 3.2 - 4d = 2.3d + 3 is d = 0.0317.

The given equation is,

3.2 - 4d = 2.3d + 3

Combine like terms by adding 4d to both sides of the equation:

3.2 - 4d + 4d = 2.3d + 3 + 4d

3.2 = 6.3d + 3

Move the constant term (3) to the other side of the equation by subtracting 3 from both sides:

3.2 - 3 = 6.3d + 3 - 3

0.2 = 6.3d

Divide both sides of the equation by 6.3 to isolate the variable d:

0.2/6.3 = 6.3d/6.3  

d = 0.0317

So, the solution to the equation 3.2 - 4d = 2.3d + 3 is d = 0.0317.

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factorise 12y+16y

need help with maths homework

Answers

the answer is    28y hope this helps

4y(3 + 4), because they both have 4y in common, and if you multiply 4y by 3 you get 12y, and multiplied by 4 you get 16y. Hope this helps!

Factor the expression:
x3 - 2x2 - 9x + 18 ...?

Answers

Final answer:

To factor the expression x³ - 2x² - 9x + 18, use the grouping method to factor out a common binomial factor.

Explanation:

To factor the expression x³ - 2x² - 9x + 18, we can first look for any common factors. Since there are no common factors among all the terms, we will use the grouping method to factor the expression.

Step 1: Group the terms in pairs.
(x³ - 2x²) - (9x - 18)
Step 2: Factor out the greatest common factor from each pair.
x²(x - 2) - 9(x - 2)
Step 3: Notice that we now have a common binomial factor of (x - 2).
(x² - 9)(x - 2)

Therefore, the factored form of the expression x³ - 2x² - 9x + 18 is (x² - 9)(x - 2).

Final answer:

The student is looking to factor the polynomial expression x^3 - 2x^2 - 9x + 18. This process typically involves finding whether factors like binomials divide the polynomial without a remainder, using methods like grouping, trial and error, or the Rational Root Theorem, followed by long or synthetic division.

Explanation:

The student has asked to factor the expression x^3 - 2x^2 - 9x + 18.

To factor this expression, we can follow a systematic approach, which often starts with looking for common factors or applying techniques such as grouping, trial and error, or the use of the Rational Root Theorem. In this case, we may not see an immediate common factor, so we might try to group terms or apply synthetic division or the Rational Root Theorem to identify potential roots of the polynomial.

A factor of a polynomial is a binomial (or another polynomial) that divides the original polynomial without leaving a remainder. If we find such a factor, we can then divide the original polynomial by this factor to simplify the expression further. For example, if we discover that (x - 3) is a factor, then we can divide the polynomial by (x - 3) to find the other factors.

Unfortunately, without performing the actual factoring process or having additional information, we cannot factor this specific expression purely based on the question provided. If we had one root or factor given, we could use long division or synthetic division to further factor the expression, and then possibly factorize it completely into the product of binomials or another polynomial.

if f(x)={(3,5),(2,4),(1,7)} and g(x)=square root(x-3) what do i do to determine (f+g)(1) ...?

Answers

( f + g ) ( 1 ) = f ( 1 ) + g ( 1 ) 
f ( 1 ) = 7
g ( 1 ) = √( 1- 3 ) = √( - 2 ) = √ 2 · √(-1 ) = i √ 2     ( we know that √(- 1 ) = i , or irrational number )
Answer:
( f + g ) ( 1 ) = 7 + i √ 2

A triangle with a base of 1/4 meter has an area of 8 square meters. What is the height, in meters, of the triangle?

Answers

The area of a triangle is equal half times base times height ([tex]A= \frac{1}{2} *b*h[/tex]). As we need height in this situation, we can solve for height. To do this, multiply both sides by 2, 2A=bh, then divide both sides by b, (2A)/b=h. Now, plug in your known values and solve. [tex]h= \frac{2*8}{1/4} =16*4=64[/tex]. This means you have a height of 64 meters.
divide 1/4 from 8 then convert whatever you get into meters by...well...converting it..GOOD LUCK DUUUUDE!!![

Does a plane have a definite beginning and end?

Answers

Final answer:

In mathematics, a plane is a two-dimensional surface with no definite beginning or end, extending infinitely in all directions. The properties of a plane, such as the loss of the usual 1/² dependence, are abstract and not physically tangible. Examples of motion, like an airplane passenger's movement or the effect of wind on a plane's trajectory, can help visualize concepts related to planes.

Explanation:

When considering the concept of a plane in mathematics, it is important to understand its properties. A plane is a flat, two-dimensional surface that extends infinitely in all directions. It does not have a definite beginning or end, meaning there is no bounded border that marks where it starts or stops. This idea can be difficult to conceptualize because it is abstract and not something we encounter in the physical world. In terms of geometry, we often approach problems involving planes by considering a portion of the plane that is relevant to the problem. For example, the concept of an infinite plane becomes intriguing as it affects the mathematical properties, such as the loss of the usual 1/² dependence encountered in finite plane calculations. To illustrate motion in a plane, one might analyze the average velocity of an object, such as an airplane passenger moving from the front to the back of an airplane or the influence of wind on a plane's trajectory relative to the ground. These scenarios involve physical planes and motions, but they help to visualize the movements within the mathematical context of planes.

expand 4(x+3)+6(x+2)

Answers

Expanded=4x+12+6x+12 Simplified=10x+24
4 × x = 4x
4 × 3 = 12
4(x + 3) = 4x + 12
-
6 × x = 6x
6 × 2 = 12
6(x + 2) = 6x + 12
-
The expression expanded is 4x + 12 + 6x + 12
If you wanted to simplify it, you would add like terms (6x + 4x, 12 + 12) to get 10x + 24
Hope this helps!

simplify 7j-6k-5j+4k which explanation please:)

Answers

Step 1. Gather like terms

[tex](7j-5j)+(-6k+4k)[/tex]

Step 2. Simplify

[tex]2j-2k[/tex]

Done! Hope this helps :)
The answer for 7j-6k-5j+4K is 2j-2k

How to solve inequaities?

Answers

Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own.
But these things will change direction of the inequality:
Don't multiply or divide by a variable (unless you know it is always positive or always negative)

What is the answer for -0.04 times -0.1?

Answers

The answer is 0.004. You are aware you could have just used a calculator or used google (Since you're posting on here you have access to the internet)
just remember that a negative times a negative is a positive -0.04*-o.1=.004 

Five years ago, William bought a twelve-room apartment complex for $340,000, and he plans to sell it today. The real estate market caused William’s complex to increase in value by 1.8% every year. William charges $525 per month to rent a room, and pays $36,500 in building upkeep every year. If William has kept all of his apartments continually rented out since he bought the building, to the nearest hundred dollars, how much profit will he realize once he sells it?
a.
$195,500
b.
$227,200
c.
$226,100
d.
$245,500

Answers

Answer:

THE ANSWER IS B ON EGDE

Step-by-step explanation:

Answer:

Edging b

Step-by-step explanation:

The measure of two sides of a triangle are 3.1 feet and 4.6 feet. What is the LEAST possible measure to the nearest tenth for the third side?
a- 1.6
b- 4.6
c- 7.5
d- 8 ...?

Answers

i BELIVE IN YOU!!! THE ANSWER IS D
Because:
 
3.1 + 1.6 =4.7 
4.7>4.6

Therefore, the answer should be letter A. 1.6

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!


the graph shows the changes in population of black bears in rural michigan during a single year. competition for food among the black bear population was most likely the greatest during the

Answers

As logic says, the competition for food would be highest when number of bears is at peak. From the graph we can see that the peaks are in months 2,4,5 and 6. If the question was at what season it was, the answer is in spring because at that season there are 3 months with high competition for food.

Answer:

C)  

late spring.

Step-by-step explanation:

just did the test on usatestprep

A furniture maker is building a bookshelf she needs to cut rectangular pieces of wood to a length of 5/12 foot and a width of 2/3 foot what is the area of a piece of wood that size

Answers

We Know, Area = Length * Width
Here, L = 5/12
W = 2/3

Substitute it into the expression,
A = 5/12 * 2/3
A = 10/36
A = 5/18 ft²

So, the area of the wood would be 5/18 ft²

Hope this helps!

The area of a piece of wood with a length of  [tex]\( \frac{5}{12} \)[/tex]  foot and a width of  [tex]\( \frac{2}{3} \)[/tex]  foot is [tex]\( \frac{5}{18} \)[/tex] square feet.

To find the area of a rectangular piece of wood with a length of [tex]\( \frac{5}{12} \)[/tex] foot and a width of [tex]\( \frac{2}{3} \)[/tex] foot, we use the formula for the area of a rectangle

[tex]\[ \text{Area} = \text{length} \times \text{width} \][/tex]

Given that the length is  [tex]\( \frac{5}{12} \)[/tex]  foot and the width is  [tex]\( \frac{2}{3} \)[/tex]  foot, we plug these values into the formula:

[tex]\[ \text{Area} = \frac{5}{12} \times \frac{2}{3} \][/tex]

To multiply fractions, we multiply the numerators together and the denominators together:

[tex]\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \[ \text{Area} = \frac{5 \times 2}{12 \times 3} \]\[ \text{Area} = \frac{10}{36} \][/tex]

To simplify the fraction, we can divide both the numerator and the denominator by their greatest common divisor, which is 2:

[tex]\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \[ \text{Area} = \frac{10 \div 2}{36 \div 2} \]\[ \text{Area} = \frac{5}{18} \][/tex]

So, the area of a piece of wood with a length of  [tex]\( \frac{5}{12} \)[/tex]  foot and a width of  [tex]\( \frac{2}{3} \)[/tex]  foot is [tex]\( \frac{5}{18} \)[/tex] square feet.

what is the answer of x − 62,500 = 0.25y

Answers

 y = 125,000 
x − 62,500 = y/4 

x − 62,500 = 125,000/4 

x = 31,250 + 62,500 

 x = 93,750 votes 
X - 62 would be the correct answer.

Find the area of the striped sector if ∠ A = 45° and the circle has a radius of 10 inches.

A)25π
B)5π over 4
C)5π over 2
D)25π over 2 ...?

Answers

Answer: D) 25π

Step-by-step explanation:

Got this right on USA test prep

Based on the figure, Jordan says that 2/3 RW=RU. Kendra disagrees. Is either of them correct? ...?

Answers

Based on the given figure, Jordan's statement is incorrect, so that would make Kendra right for disagreeing to what he said. Here is the explanation. RU is bigger than RW. This can only be true in order instances which is for example, when the given triangle is equilateral. But going back to the given figure, it is not what is presented. So, i hope this answers your question.

what is the answer to 4m+7=-3m+49

Answers

4m + 7 = -3m + 49
4m + 3m = 49 - 7
7m = 42
m = 42/7
m = 6

So, your final answer is 6

Hope this helps!

What is the value of the expression when a = 6, b = 4,and c = 8?

2a/3b−c

A. 1

B. 3

C. 8

D. 12

Answers

The answer is: [B]: 3.
______________________________________________
Let us assume that the problem is meant to be written as:
_______________________________________________
  2a / (3b - c) ;

Explanation:
___________________
we are given the values for "a", "b", "c" ; and we are asked to solve the problem when the given values: 
      a = 6, b = 4; and c = 8 .
________________________
Note:
________________________
We have a "numerator" , " 2a " ; and a "denominator" , (3b - c).
_______________________
Let us start by finding the numerator: 
_________________________________
Numerator: 2a = 2*a = 2 * 6 = 12.
_______________________________________
Denominator: 3b - c  = (3*4) - 8 = 12 - 8 = 4
_______________________________________
To solve: Numerator ÷ Denominator = 12 ÷ 4 = 3.
_______________________________________
The answer is: [B]: 3.
_______________________________________

What is 60% of 33...................................................?

Answers

60% of 33 is 19.8 is the answer

To find 60% of 33, first write 60% as a decimal by moving the decimal point two places to the left to get .60.

Next, the word "of" means multiply, so we are are going to multiply.

(.60) (33) = 19.8

Therefore, 60% of 33 is 19.8.

a line segment can grow from which of the following ?
a. zero dimensional objects
b.one dimensional objects
c three dimensional objects ?
...?

Answers

Final answer:

In mathematics, a line segment can grow from a) zero-dimensional points or b) one-dimensional line segments but cannot grow from a three-dimensional object due to differences in properties such as volume.

Explanation:

In the field of mathematics, a line segment can grow from a zero-dimensional point and a one-dimensional line segment. The process of a line segment growing from a point involves extending out in a certain direction from the zero-dimensional point. When we say a line segment can grow from a one-dimensional object, it means an existing line segment can be extended to become a longer line segment.

A line segment cannot 'grow' from a three-dimensional object because a line segment is a one-dimensional entity, and dimensional objects have 'volume,' a property which a line segment does not possess.

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The temperature was -3 c last night. it is now -4
c. what was the change in temperature?

Answers

Change = Final value - Initial Value
= -4 - (-3) = -1
the change was -1 c

Find the simple interest to the nearest cent for each principal, interest rate, and time. $1,200, 3.9%, 8 months.

Answers

The answer to that equation is 3 cents

Which line is a line of symmetry for this regular polygon?
A. Line g
B.line h
C.line i

Answers

A. line g is th line of symmetry
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