<h2>
Explanation:</h2><h2>
</h2>
Hello! Remember you have to write complete questions in order to get good and exact answers. Anyway, I'll help you either way. A sector is a region of a circle between two radii. Let's assume the sector as:

Then, we can find the central angle by the following equation:

But:

Then:

Answer:
20 + d = 40
Step-by-step explanation:
It gives you 20 so you just say you want to add Donnie's age to equal 40. In math,
and/sum means add +
is means equals =
<span>The common factors of 36 and 48 are 1, 2, 3, 4, 6, and 12
36-</span><span>1,2,3,4,6,9,12,18,36
48-</span><span>1, 2, 3, 4, 6, 8, 12, 16, 24, 48</span>
Answer:
18, 41
Step-by-step explanation:
simultaneous equation
x + y = 59
x - y = 23
subtract both equations
2y = 36
y = 18
x = 41
Answer: 4.5
Step-by-step explanation:
S= ut + 1/2(at)
S= 10(1/2) + 1/2(-2x1/2)
S= 5 + 1/2(-1)
S= 5 + (-.5)
S= 4.5