Answer:
Step-by-step explanation:
Apply the difference of two squares formula.
Drew was earning $14
1 answer:
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Answer:
f(1)=-4
Step-by-step explanation:
f(1) means what is the y in the point on the curve of f so that x=1.
So I go to x=1 on the x-axis.
So I go right one from the origin.
I notice the curve is below the x-axis so I go down to the curve til I get to the curve.
Once I get to the curve, I look at the y-axis to tell what that number is for that ordered pair there at x=1.
That y-value is -4.
A graph/picture is probably worth a lot more to you then my words.
Other examples:
f(2)=-5
f(3)=0
f(-1)=4
f(-2)=5
f(-3)=0
Answer: There are an estimated of 622 trouts in the lake.
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. You know that:
- The conservationist catches 126 trout.
- Then, 158 trout are caught, and 32 of them are tagged.
2. Therefore, you can write the following ratio, where <em>x</em> is the number of trout in the lake. Then, when you solve for <em>x</em>, you obtain the following result: