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
Licemer1 [7]
3 years ago
6

A circle has an arc of length 20π that is intercepted by a central angle of 180°. What is the radius of the circle?

Mathematics
1 answer:
Bond [772]3 years ago
8 0

Answer:

10π

Step-by-step explanation:

RULE:  The angle measure of the central angle is congruent to the measure of the intercepted arc.  

RULE:  Central Angle = Arc length

Given:  

Arc length (20 π) = central angle (180)

we know 180 degrees is a straight line, thus a semi-circle is created.  This would be the diameter.  

1/2 diameter is the radius.  20π/2 is the radius.  

10π

You might be interested in
2d+7/6-d-5/3=0 Tell me the answer ​
Inessa [10]

Answer:

d=1/2

Step-by-step explanation:

2d +  \frac{7}{6}  - d -  \frac{5}{3}  = 0 \\ 2d - d =  \frac{5}{3}  -  \frac{7}{6}  \\ d =  \frac{10}{6}  -  \frac{7}{6}  \\ d =  \frac{3}{6}  \\ d =  \frac{1}{2}

3 0
3 years ago
Simplify<br><br>Square root of 50 over 2 times -4 + square root of 121
kobusy [5.1K]

Answer:

  -9

Step-by-step explanation:

  \sqrt{\dfrac{50}{2}}\cdot(-4)+\sqrt{121}=-4\sqrt{25}+11=-4\cdot5+11\\\\=-20+11=\boxed{-9}

Your calculator can help with this.

4 0
2 years ago
The sum of two consecutive integers is 77. Find the integers.
SIZIF [17.4K]

Answer:

38 and 39

Step-by-step explanation:

Since the two integers are consecutive, then one is one larger than the other. Therefore, lets call them x and x+1. We can now set up the following equation:

x+(x+1)=77

2x+1=77

2x=76

x=38

x+1=39

Hope this helps!

5 0
3 years ago
Read 2 more answers
How to find the inverse of each function <br> for example like this one: <br> h(x)=5/4x
Anton [14]
First rewrite it like this
1. y=5/4x
Then, make X the subject
2.4x=5/y
x=(5/y)÷4
3. Once done, simply replace x with h(x)^-1 and y with x
h(x)^-1= (5/x)÷4
Sorry I'm not very good at rearranging formula but hope this helps :)
4 0
3 years ago
Read 2 more answers
For f(x) = x3-x2, which gives an output of 48?<br> A. f(-8)<br> B. f(-4)<br> C. f(4)<br> D. f(8)
Butoxors [25]

Answer:

The input is x−2, therefore

Step-by-step explanation:

f(x−2)=(x−2)2−3(x−2)+1

7 0
3 years ago
Other questions:
  • If the circumference of a circle is 8 pi what is the area of the circle
    7·2 answers
  • What is the square root of four hundred fifty six
    15·2 answers
  • Help again please lol<br> I suck at math
    8·1 answer
  • Malika charges $7.20 per hour for babysitting.she babysits 4 hours each week.she spends $10 per week and puts the rest of her ea
    8·2 answers
  • kendra is 3 times her duahters age plus 7myears kendra is 49 years old. write an equation to find her duaters age
    7·1 answer
  • After traveling for 4 hours and 1800 miles, an airplane begins a steady descent. When it begins descending, its altitude (height
    8·2 answers
  • You're buying the karaoke machine for $79.00 with 6% tax. How much will you<br> pay all together?*
    5·1 answer
  • Pls help- REEEEEEEE ;-; just please help me I have one more question left
    8·2 answers
  • A cleaning solution uses 2 cups of vinegar for every 3 quarts of water. How many cups of vinegar are needed to make a cleaning s
    14·1 answer
  • Pls help !!!<br> find the rate of change on [-1, 4]
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!