You can use permutations when order matters and use combinations when order doesn’t matter.
This is a downward facing parabola, so its range comes in the form
where m is the y coordinate of the vertex of the parabola.
We can find the x coordinate of the vertex using
And if we plug -1 in the equation we get the y coordinate of the vertex:
So, the range is the interval
Answer:ooooooooooooooooooooooooooooooooooooooooooof
Step-by-step explanation:
<span>11:35 - 12:00 = 25 minutes
12:00 - 1:30 = 1 hour and 30 minutes
so </span>25 minutes + 1 hour and 30 minutes = 1 hour and 55 minutes
answer: 1 hour and 55 minutes
Given:
must correctly answer 80% of the questions
correctly answered questions = 26
incorrectly answered questions = 4
unanswered questions = 15
Total questions = 26 + 4 + 15 = 45
45 * 80% = 36 required correctly answered questions.
36 - 26 = 10
Out of 15 remaining questions, 10 questions must be correctly answered for Heidi to advance to the next level.
