1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
masha68 [24]
3 years ago
5

Find the length of each arc r=13 ft x=90 degrees

Mathematics
1 answer:
VladimirAG [237]3 years ago
6 0

Answer:

13\pi/2

Step-by-step explanation:

The formula of the circumference of a circle is 2\pi r.

The length of an arch can be found by using the ratio of circumference to the arc.

First, find the circumference of the circle:

2\pi *13=26\pi

Then you find the ratio:

The length of the arc is 90/360, which is 1/4, of the circumference.

Finally, find the length of the arc:

26\pi*1/4=(13/2)\pi or 13\pi/2

I hope this helps :)

You might be interested in
Select ALL the correct answers.
hichkok12 [17]

Answer: Jack, To Decide

Step-by-step explanation:

I am almost certain this is right.

The idea that it is random from a stranger especially between two sides, it fits the idea for fairness. Same with the citizens asked to participate and the random generator.

6 0
2 years ago
Read 2 more answers
3(x + 1) - (x-3) = 12<br> I need help I don’t I understand
balandron [24]

Answer:

3

Step-by-step explanation:

3x+3-x+3=12

3x-x=12-3-3

2x=6

x=6/2

x=3

4 0
3 years ago
Read 2 more answers
Question: The meaning of four consecutive even numbers is 15.
nasty-shy [4]
First, a bit of housekeeping:

<span>The meaning of four consecutive even numbers is 15.  Wouldn't that be "mean," not meaning?  Very different concepts!

The greatest of these numbers is _______ a^1

"a^1" means "a to the first power.  There are no powers in this problem statement.  Perhaps you meant just "a" or "a_1" or a(1).


The least of these numbers is ______a^2.
No powers in this problem statement.  Perhaps you meant a_2 or a(2)


In this problem you have four numbers.  All are even, and there's a spacing of 2 units between each pair of numbers (consecutive even).

The mean, or arithmetic average, of these numbers is (a+b+c+d) / 4, where a, b, c and d represent the four consecutive even numbers.  Here this mean is 15.  The mean is most likely positioned between b anc c.


So here's what we have:  a+b+c+d
                                         ------------- = 15
                                                 4

This is equivalent to a+b+c+d = 60.

Since the numbers a, b, c and d are consecutive even integers, let's try this:

a + (a+2) + (a+4) + (a+6) = 60.    Then 4a+2+4+6=60, or 4a = 48, or a=12.

Then a=12, b=14, c=16 and d=18.  Note how (12+14+16+18) / 4 = 15, which is the given mean.

We could also type, "a(1)=12, a(2)=14, a(3) = 16, and a(4) = 18.


</span>
8 0
3 years ago
The table represents a function.
yan [13]

Answer:

The table represents a function.

What is the value of f(-1)?

f(-1) = - 3

f(-1) = -1

f(-1) = 0

f(-1) = 6

Step-by-step explanation:

7 0
3 years ago
The hyperbola with center at (0, 0) opening horizontally, with a = 2, b = 5.
Finger [1]
I dont know if this is what you are looking for but i think this is the answer of the question you are looking for which is the general equation of a horizontal hyperbola: 
<span>(x-h)²/a² - (y-k)²/b² = 1 </span>
<span>with </span>
<span>center (h,k) 
</span>What you need to do is replace the data and do the calculations
8 0
3 years ago
Other questions:
  • Match the monomer to the correct macromolecule<br>​
    8·1 answer
  • A gallon of moo milk cost $5.12 what is the price in dollars of an 8 ounce glass of moo milk there 128 ounces in 1 gallon
    14·2 answers
  • Simplify 3a(- 3a+4)- 4(3-2)
    8·1 answer
  • Jack mixes yellow and blue paint to make green paint that he will use to paint his basement. He uses a ratio of 3 pints of yello
    10·1 answer
  • Slope=4/3 y-intercept=-5
    15·2 answers
  • Anyone know the sqrt(-25) <br> It would be 5i right?
    5·1 answer
  • James is following this recipe to make flapjacks.
    5·2 answers
  • A rectangle has measurements of 2/3 of a foot long and ½ of a foot wide. What is the area of the rectangle. (Remember: Area of a
    9·2 answers
  • 4x + 5y = 20 what is the slope
    14·1 answer
  • how can you fluently add, subtract, mulitply, and divide decimals? how can you multiply and divide fractions?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!