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Lemur [1.5K]
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:
skad [1K]3 years ago
3 0
Use a portion of the circumference: pi x 2 x r x angle at centre =8xpix72/360 =8pi/5
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I need question a and b done pls help
FrozenT [24]

Answer:

A. 5

B. 12

Step-by-step explanation:

What you do is you substitute -2 into the a and the 3 into the b.

a. 3(-2)^2-5(3)+8                       b. 2/3(3)-5(-2)

3(4)-15+8                                   2-(-10)

12-15+8                                      12 is your answer.

-3+8

5 is your answer.

8 0
3 years ago
Read 2 more answers
I've already posted this but no one was able to help, please do so, I am timed on this
Daniel [21]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
Hello! Happy Tuesday! I have a math test today in 30 min and i'm studying. I know I will fail but I will try. I am really nervou
Yuri [45]
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4 0
3 years ago
PLEASE help me identify what type of quadrilateral this is please help ASAP
Musya8 [376]

Answer:

its c)

Step-by-step explanation:

just looked it up

7 0
3 years ago
Asssesmenttt lasttt......
ratelena [41]

Answer:

<em>( About ) 1.77 seconds; Option B</em>

Step-by-step explanation:

We are given the equation h ( t ) = - 16t^2 + 50, so in order to determine the time let us determine the x - intercept for y ⇒ 0;

- 16t^2 + 50 = 0,

- 16t^2 = - 50,

t^2 = 25 / 8,

Thus t ⇒ √ ( 25 / 8 ), and t ⇒ - √ ( 25 / 8 ),

t ⇒ ( 5√2 )/ 4, and - ( 5√2 )/ 4,

But time is represented only by a positive value, thus

t ⇒ ( 5√2 )/ 4 = 1.767766953......., ( About ) 1.77 seconds

<em>Answer; ( About ) 1.77 seconds; Option B</em>

7 0
3 years ago
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