The point at 0 x on the y axis the y-intercept, so -2
Answer:
4492 years (to the nearest year)
Step-by-step explanation:
The quantity of radium left after a time t can be modeled using the equation below:
Given that:
The amount of radium left after a t years is:
If the quantity left is 10 mg, then:
Changing to logarithm form
In 4492 years, 10 mg of Radium will be left.
Answer:
An equation or an inequality that contains at least one variable is called an open sentence. When you substitute a number for the variable in an open sentence, the resulting statement is either true or false. If the statement is true, the number is a solution to the equation or inequality.
30 because the original ratio would be 16 to 14 but that reduces to 8 to 7 and then you just double the 7 to get 14 and then you add 16 and 14 together to get the total number of horses and elephants.
Answer:
$521.91 after 9 years
Step-by-step explanation:
Initial amount $400
3%=0.03
After 1 year:
A1=400(1+0.03)=400×1.03
After 2 years
A2=A1(1+0.03)=400×1.03²
....
After 9 years
A9=400×1.03⁹
A9=$521.91