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sweet-ann [11.9K]
3 years ago
8

Please help me asap

Mathematics
1 answer:
Sonja [21]3 years ago
6 0

Step-by-step explanation:

4/sin45=

4 \sqrt{2}

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Find the length of the arc of a circle with radius of 20 centimeters intercepted by a central angle of 45 degrees
oksian1 [2.3K]

If the radius is 20cm, the circumference is

C = 2\pi r = 40\pi centimeters.

Now, 45° is one eighth of a whole turn, so the arc intercepted by a 45° angle is one eighth of the whole circumference, so the answer is

\dfrac{40\pi}{8} = 5\pi

8 0
3 years ago
The number of pedestrian fatalities in the United States declined approximately steadily from 4,795 fatalities in 2006 to 4165 f
murzikaleks [220]

Answer:

Average rate of change = 0.1313 or 13.13% (approx.)

Step-by-step explanation:

Given:

Pedestrian fatalities in 2006 = 4,795

Pedestrian fatalities in 2009 = 4,165

Find:

Average rate of change

Computation:

Average rate of change = [4,165-4,795] / 4,795

Average rate of change = [-630] / 4,795

Average rate of change = 0.1313 or 13.13% (approx.)

3 0
3 years ago
A Restaurant hostess is paid $50 plus 10% of the waitstaff's tips for each night she works. If y represents her pay each night a
Natalija [7]

Answer: x-50=10

Step-by-step explanation:

5 0
3 years ago
Katie’s cell phone plan includes 400 peak minutes. Last month Katie used 240 peak minutes. This month Katie used 300 peak minute
umka2103 [35]

Answer:

25%

Step-by-step explanation:

So you subtract the number of peak minutes Katie used last month from the number of peak minutes Katie used this month. Divide the difference by the number of peak minutes Katie used last month. Then multiply by 100 to find the percent increase. Katie used 25% more peak minutes this month than last month.

Hope i helped

6 0
3 years ago
The process of finding the factors of the expression is called
Kruka [31]

Answer:

<h3>The process of finding the factors of given number or expression is called <u>Factorization</u>.</h3>

Step-by-step explanation:

Hope this helps you buddy. Good luck and have a nice day.

6 0
2 years ago
Read 2 more answers
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