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
weqwewe [10]
3 years ago
8

What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4?

Mathematics
1 answer:
Nesterboy [21]3 years ago
4 0
We know that

[the length of a circumference]=2*pi*r
for r= 4 units
[the length of a circumference]=2*pi*4--------------> 25.12 units

if a  full circle (360°) has a length---------------------> 25.12 units
 arc for an angle of 72 °---------------------------> X
X=72*25.12/360------------> 5.024 units

the answer is 
<span>the length of the subtending arc for an angle of 72</span>° is 5.024 units
You might be interested in
1. The sum of x and -45 is at most 35
Lorico [155]

Answer:

The given set of equation are:   x+ (-45) ≤  35  ,  x - (-45) ≥  35

For the given equality to be true, x  ≤ 35

Step-by-step explanation:

Here, given the first number = x

Second number  = -45

Now, Sum of x  and - 45 is at most 35.

⇒ x+ (-45) ≤  35

Also,  The difference of x and -45 is at least 35.

⇒ x - (-45) ≥  35

Now, simplifying the given set of equations:

x  - 45  ≤  35  ⇒    -x - (-45) >   - 35   ( as 3  <  4  ⇒ -3  > -4)

or, -x  + 45  >  - 35

and second equation is x  + 45 ≥  35

Now, solving both the equations by not taking sign of inequality in to the consideration, we get

x - 45  = 35

x + 45 = 35  

Adding both equations,we get:   ⇒ 2x = 70

                                                          or x = 35

Hence for the given equality to be true, x  ≤ 35

5 0
3 years ago
Find the value of x:
slega [8]

Answer:

x = 20

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Using ΔAHC , then

∠ACH = 180 - (2x + 100) = 180 - 2x - 100 = 80 - 2x

∠ECD = ∠ACB ( vertical angles are congruent ), thus

∠ECD = ∠ACH + ∠HCB, that is

3x = 80 - 2x + x

3x = 80 - x ( add x to both sides )

4x = 80 ( divide both sides by 4 )

x = 20

7 0
3 years ago
Given the line below.
Roman55 [17]

Answer:

The equation of the line in point slope form is equal to

y+2=(x+2)

Step-by-step explanation:

The picture of the question in the attached figure

step 1

Find the slope

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

(-2,-2) and (2,2)

substitute the values

m=\frac{2+2}{2+2}=1

step 2

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=1\\(x1,y1)=(-2,-2)

substitute the values in the formula

y-(-2)=(1)(x-(-2))\\y+2=(x+2)

5 0
3 years ago
QUICK!!!!!!!!help help help
Luba_88 [7]
I think its "Yes it can because -3.5 lies to the left of -1.5"
5 0
3 years ago
A local park is in the shape of a square. A map of the local park is made with the scale 1 inch to 200 feet. If a straight path
kkurt [141]

Answer:

600 ft per side

Step-by-step explanation:

1 in = 200 feet

12 in = 1 foot

12 in * 200 ft= 2400 ft

2400/4 = 600 ft per side

5 0
3 years ago
Other questions:
  • Ross drives 210 miles in 3 hours. If Ross continues to drive at the same rate, how many miles can he drive in 9 hours?
    8·2 answers
  • What is the largest number that can be rounded to 2500 when rounded to the nearest ten
    14·2 answers
  • (−7−3)·(9+(−7))÷(5·(−2))
    5·1 answer
  • Determine the distance between -7 and 7
    12·1 answer
  • 2.5 milliliters of ammonia requires blank milliliters of distilled water ?please help
    9·1 answer
  • Evaluate.<br><br> 52+7⋅3+4<br><br><br> 40<br><br> 50<br><br> 55<br><br> 224
    8·2 answers
  • Plz help me i need the answers ASAP
    5·1 answer
  • A salesperson earns $200 a week plus a 4% commission on her sales. Which equation models the relationship between her sales in a
    7·2 answers
  • Which expression is equivalent to (3a)-2​
    10·2 answers
  • SOMEONE PLEASE HELP ITS WORTH 20 POINTS
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!