The domain function would be y=3xv because of inverse
Answer:
The year is 1979.
Step-by-step explanation:
Given:
The function relating fish population and number of years since 1972 is:
Now, when the fish population reaches 99 thousand, it means that . Now, plugging in in the above equation and solving for . This gives,
Therefore, the year after 7 years passed since 1972 is given as:
1972 + 7 = 1979.
So, the year when the number of fish reaches 99 thousand is 1979.
W = 2L / 3 and 2W + 2L = 50. Substitute 2L / 3 for W in the second equation to get:
<span>2(2L/3) + 2L = 50 </span>
<span>4L/3 + 6L/3 = 50 </span>
<span>10L/3 = 50 </span>
<span>L = 3 * 50 / 10 = 15. Replace L for 15 in the first equation: </span>
<span>W = 2(15) / 3 </span>
<span>W = 10</span>