A restaurant bill was $35. If you want to leave a 20% tip, how much would the total bill be?
1 answer:
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You can use the <u>determinant</u><u> (square root)</u> of a quadratic equation to determine the number and type of solutions of the equation.
> 0 → 2 real solutions
- if
is a perfect square, then rational sol'ns
- if
= 0 → 1 real solution (double root)
< 0 → 2 imaginary(complex) solutions
Answer:
Step-by-step explanation:
The given function is
We want to find all values of x for which:
f(x) is greater than or equal to 14.
This implies;
Subtract 13 from both sides;
By definition of the absolute value function,
Divide through the first inequality and and reverse the inequality sign: