Answer:
Step-by-step explanation:
The standard form of this exponential function is
where a is the initial value and b is the growth rate. Our initial value is 490 and our growth rate is .2 so the equation is

Spinner has three colors: red, green and yellow; coin has two sides: head or tail.
The sample space: {red - head; red - tail; green - head; green - tail; yellow - head; yellow - tail}. In total there are 6 ways to combine different colors with coin sides.
The probability that the result is green - tail is 1/6.
Answer:
The other rational number in the operation given is:
Step-by-step explanation:
To obtain the number in the operation given, we're gonna represent the operation:
Where:
- r = the other rational number.
Now we are going to solve r to identify its value in numbers:
(We pass a number that is multiplying to the left of the equal, to divide to the right of the equal symbol)
As you can see, when we operate, <u>the result is 6/5</u>, and we can prove this multiplying as we had in the original equation, replacing r by 6/5:
- r * 15/14 = 9/7
- 6/5 * 15/14 = 9/7
- 9/7 = 9/7
In this form, we know the result is correct.