The formula for area of a circle is Area = PI x r^2
The radius (r) is given as 9 meters.
The value of PI is given as 3.14
Area = 3.14 x 9^2
Area = 3.14 x 81
Area = 254.34 m²
Answer:
i believe you just add them, so $11,450.
Step-by-step explanation:
2900+5250+1100+2200=11,450
Answer:
C. 30,000
Step-by-step explanation:
We know that, the exponential function for decay is,
where,
y = the amount after time t,
a = initial amount,
r = rate of decay.
The half-life of a unstable isotope is 10,000 years, so
Now the function becomes,
Now, only 1/8 of the radioactive parent remains, so
Answer:
25%
Step-by-step explanation:
1 white car + 3 black cars
4 cars in total
1 out of 4
1/4 = 0.25
25%
Answer: The missing digit is 2.
Step-by-step explanation:
4,912*22= 108,064