Answer:
a.) 33.51
b.) 8.38

The formula for finding the area of a sector is (angle)/360 • area of circle, so A is 33.51
As for the length of the sector, we need the circumference of the circle (which is 50.27). Then, we can do 360/60 to get 6. Now, we divide 50.27/6 to get the length of the sector. So, B is 8.38.

8 0

3 years ago

The mean of four numbers is 43. What are those four numbers?

Andrej [43]

Answer:

42,43,43,44

Step-by-step explanation:

If there are four numbers in a list then the middle 2 numbers should be added up and divided up to give the mean. If we are given the mean we can now work backwards to give us:

$\frac{x+y}{2}$ (where x and y are the 2 middle numbers)

We can also see that x and y must be equal as the mean is an integer.

So:

$43=\frac{2x}{2}$

So x=43 and that is the middle 2 numbers.

I don't exactly know how to explain how i got the other 2 numbers.

7 0

3 years ago

Mathias and his brother divided 2,030 marbles equally use compatible numbers to estimate how many marbles each brother received

umka2103 [35]

Answer:

each brother received 1,015 marbles cus 2,030 divided by 2 is 1,015.

6 0

4 years ago