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kondaur [170]
2 years ago
15

Assume the radius of a circle is

Mathematics
1 answer:
Lisa [10]2 years ago
7 0

Answer:

Step-by-step explanation:

They want you to see how radius is important.  Just remember that one radian is one radius,  that should help  you see why radius is important.

They ask for the unit circle ,  that is a circle of one unit for the radius,  which makes it super easy to calculate things for it,  they ask what is the area, which is that famous formula, πr^{2} ,  then they ask what's its circumference.  which is that other famous formula  2πr

so to go all the way around a circle of one unit radius,  it's  2π  exactly or about 6.28..... units,   call it meters, or feet or inches, it doesn't mater here.

the size of the circle doesn't matter here either,  b/c we are using the radius ,  that relaationship doesn't change ,  all circles,  what ever size , have this same relationship between the radius and radians.    :P  this is handy.  

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What is 1+1 need help fast :0
Allushta [10]

Answer:

2

Step-by-step explanation:

add 1 plus 1 if you have 1 gummy and you add one you will have 2 gummies

3 0
3 years ago
The graph shows the ratio of goals attempted to goals made for two soccer players, Andres and Deyvi. Which player has a better r
anygoal [31]

Answer: Andres

Explanation:

y = goals made

x = goals attempted

For Andres, his ratio is y/x = 4/8 = 1/2 = 0.50 meaning that he made 50% of his attempts

For Deyvi, the ratio is y/x = 9/20 = 0.45 = 45%

Andres has the better record.

4 0
2 years ago
A corporate attorney has weekends off and has 30 paid vacation days per year, including holidays that fall on weekdays. If his s
snow_tiger [21]

It's slightly ambiguous because the year isn't an even number of weeks, so sometimes that extra day falls on a weekend and sometimes on a weekday.  We'll assume a weekend; that makes the numbers come out nice.

Total working days, 52 five day weeks minus 30 days vacation

d = 52 \times 5 - 30 = 230

So his daily rate is

119600/230 = 520  dollars per day

Answer: A

It's closer to $518 when we count the extra day as a weekday.



3 0
2 years ago
Which of the following are solutions to the equation below? Check all that apply. 15x2 - 44x + 32 = 0
krek1111 [17]
If you want to find the solutions for this you have to factor it.  Since it's a second degree polynomial, you'll have 2 solutions.  Factoring this using the quadratic formula, you'll get factors of (5x-8)(3x-4).  Solving these for x you get x = 8/5 and x = 4/3.
6 0
3 years ago
Eliminate the double signs in the expression -18-(+1)+(+16)+(-2)
Savatey [412]

Answer:

-5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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