Twice 2 times
that is 100% correct
A semi circle is half of a circle, and since a circle is (pi)r^2, it would be 1/2 (pi) r^2. Since the radius is half the diameter, we would turn the 36 inches into 18 inches. So 18in is your radius. Plug it in and you've got it. :)
Answer:D because you divide it bu a common factor
Step-by-step explanation:
Sally wants to buy some groceries. She wants to buy 2 kg of potatoes and 1 kg of onions. 1 kg of onions cost $5 but the paper that shows price of potatoes got lost. However, Sally remembers that few weeks ago she bought 3 kg of potatoes for $12. How much did Sally spent buying groceries?
Part 1:
First we need to find how much 1 kg of potatoes cost.
3*x = 12
x = 4
1 kg of potatoes cost $4
Part 2:
Now we need to find how much did she spent.
M = 4*2 + 1*5 = $13.