Hello!
To solve this exercise, we must use the formula below:

Knowing these values, let's replace them in the formula to obtain r:

So, the radius of this circle is 10cm.
Hope this helps!
Triangle area is 1/2 bh
So 11.9 is about 12, 7.1 is about 7.
7x12 = about 84 sq, cm
Answer:
2.5 times
Step-by-step explanation:
From the diagram attached below;
let's calculate the volume of each bottle;
SO for bottle X;
we have ;
Volume of X = 
Volume of X = 
Volume of Y = 
Volume of Y = 
The ratio of Y to X can help us to determine how many times more lotion is in Bottle Y than in Bottle X; So taking their ratio ; we have:

= 2.5 times
Thus; Bottle Y has 2.5 times more lotion than Bottle X
Answer: C.) 10^6
Step-by-step explanation: When multiplying same-numbers with exponents, you only need to add the exponents. In this case, that’s 2 and 4.