Ms. Kendrick plans to buy a laptop for $1,345 in 12 weeks. She has already saved $145. How much should she save each week so she
1 answer:
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Answer:
The inverse of x² +1 is:
Step-by-step explanation:
Given
y = x² + 1, x>0
We know that A function g is the inverse of a function f if for y = f(x), x = g(y)
y = x² +1
Replace x with y
x = y² + 1
solve for y
y² = x - 1
Taking square root
Thus, the inverse of x² +1 is:
To solve this problem you must apply the proccedure shown below:
1. Let's call the games won and the games lost
.
2. Then, based on the information give in the problem, you can make the following system of equations:
3. You can use the Substitution method. You must substitute into the second equation and solve for
:
3. Now substitute this values obtained into the first equation and solve for :
The answer is: The team won 40 games and lost 42 games.