Find the area of the circle:
Area = 3.14 x 12^2 = 3.24x144 = 452.16 cm^2
The sector is 60 degrees.
Multiply the area of the circle by the fraction of the sector:
452.16 x 60/360 = 75.36 cm^2
Answer:
about 5.9%
Step-by-step explanation:
We assume that the original amount of Pb-210 present at death decays at the given rate. The fraction (f) remaining is multiplied by 1/2 every 22 years, so can be modeled by ...
f = (1/2)^(t/22) . . . . . where t is in years after death
Then, for t=90, the remaining fraction is ...
f = (1/2)^(90/22) ≈ 0.05868 ≈ 5.9%
For this case, we must find what amount represents 75% of 96.
Making a rule of three we have:
96 -------------> 100%
x ---------------> 75%
Where the variable "x" establishes the amount that represents 75% of 96.
Thus, 72 represents 75% of 96.
To find equivalent expressions that represent the same value as the 75% of 96, you should look for expressions that result in "72"
Answer:
72
Answer: The answer to the first is -29x-5. The Answer to the second is -5/6a - 5/8
Step-by-step explanation:I took the K12 test I hope this helps.
