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sweet [91]
3 years ago
5

What part of the circumference is an arc whose measure is 30°?

Mathematics
1 answer:
Radda [10]3 years ago
7 0
Circumference of a circle:
C = 2 r π;
Length of an arc:
L = r π α / 180°
L = r π · 30° / 180° = r π /6
r π /6   :   2 r π = 1/6 : 2 = 1/12
Answer: A ) 1/12 
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You increase the size of a page by 30% then decrease it by 30% what is the size of the page now?
LiRa [457]
The correct answer is A, smaller than the size you started with. Because you increased the size by 30% of the original page, and then took 30% of the larger page, you're taking more away than you increased it by. For instance, if you had a page that was 60 units², and you increased it by 30% (18 units), you would get 78 units². However, if you took 30% of 78 (23.4) and subtracted it, you would get 54.6 units², which is smaller than 60 units².

Hope this helps!
7 0
4 years ago
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Plz somebody help me <br>what is the measure of abc?<br><br>A. 242<br>B. 118<br>C. 59<br>D.62
Sphinxa [80]
Angle ABC is an inscribed angle and its angle equals one half of the intercepted arc.
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Source:
http://www.1728.org/circangl.htm


3 0
4 years ago
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Please help me! I would appreciate it! :)
Helga [31]

Answer:

v= -2

Step-by-step explanation:

10+2v=−6(3v+5)

Step 1: Simplify both sides of the equation.

10+2v=−6(3v+5)10+2v=(−6)(3v)+(−6)(5)(Distribute)10+2v=−18v+−302v+10=−18v−30Step 2:

Add 18v to both sides.

2v+10+18v=−18v−30+18v20v+10=−30

Step 3:

Subtract 10 from both sides

.20v+10−10=−30−1020v=−40

Step 4:

Divide both sides by 20.20v20=−4020v=−2

Answer:v=−2

4 0
2 years ago
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What is the greatest common factor (gcf) of the numerator and denominator in the rational expression below? 7x+14/2x^2+x-6
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The answer is C. The numerator 7x+14 can be factored as 7(x+2). The denominator 2x^2+2x-6 can be factored as (x+2)(2x-3). The greatest common divisor of 7(x+2) and (x+2)(2x-3) is obviously x+2, which is contained in both of the two expressions.
4 0
4 years ago
plz help... Emily wants to make 1000 cranes. she can make 80 cranes a day. if she has already made 304 cranes,how many dayz are
forsale [732]
She would take about 9 days to make 1000 cranes
1000-304=696
696/80= 8.7
8.7 rounded is 9
3 0
4 years ago
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