Answer:
2%
Step-by-step explanation:
20% takes 10 years to decay
To find per year decay, we divide the percentage by the number of years, so we get unit rate of years {per year]. Thus we have:
20%/10 = 2% per year
It's that simple.
Hence, the percentage by which the substance decays each year is 2%
Answer:
B (2,-3) A (7,-8)
Step-by-step explanation:
they are just the same points but in the negative side of the x-axis
Answer: f-(x)=6x-6
Step-by-step explanation: Negative times a positive is negative. Negative times a negative is a positive. Works the same with f(x) representation.
Answer:
12π
Step-by-step explanation:
The circumference is the distance you need to walk to do 1 full rotation of a shape. The formula to calculate the circumference of a circle will be
circumference =2πr
where π is a constant that equal to 3.14 or 22/7 and r is the radius of the circle (radius = 6 feet).
The circumference of this circle will be:
circumference =2πr
circumference =2π(6)
circumference =12π
Answer:
u take the 3.0 and then x it by 3 that should be the answer
Step-by-step explanation:
