At the beginning of an environmental study, a forest covered an area of 1500km^2. since then, the area has decreased by 6.3% each year. let t be the number of years since the start of the study. let y be the area that the forest covers in km^2. write an exponential function showing the relationship between y and y.

The correct answer is:

Explanation:

An exponential function is of the form

, where a is the initial population, b is 1 plus the amount of yearly change, and x is the number of years.

For our problem, a, the initial population, is 1500.

The yearly change is 6.3%; 6.3% = 6.3/100 = 0.063.  Since it is decreasing, this is negative; 1+(-0.063) = 0.937.

We use t as the number of years.

This gives us

the correct answer is 828.07

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3