The average, median and mode of a list of numbers will be the same when the middle (or mean of the two middle numbers) is equal to the most common number in the list, and that number is also the mean.
Answer:
21x
Step-by-step explanation:
In the parentheses, 3 * x is the same thing as 3x. Distribute 7 into 3x to get 21x as your final answer.
Which sequence is ARITHMETIC? A) {0, 1, 4, 9,...} B) {0, 4, 7, 11,...} C) {-3, 2, 7, 12,...} D) {2, 1, 0.5, 0.25, ...}
Igoryamba
The answer is C. -3,2,7,12
I hope this helps!!!!!!!!
40% u just add the 2 decimals together
Answer:
Step-by-step explanation:
If you plot the focus and the directrix you see that the focus is above the directrix. Since a parabola always wraps itself around the focus, this parabola opens upwards and has the standard form equation:
where h and k are the coordinates of the vertex and p is the number of units between the vertex and the focus, or the vertex and the directrix. This number of units will be the same for both since the vertex is smack dab inbetween the focus and the directrix. The focus is also on the axis of symmetry, which means that it shares the x coordinate with the vertex (which is actually the h coordinate) of -5. Halfway between the y value of 5 and the y value of -1 is 2. So the vertex is located at (-5, 2). The number of units between the vertex and the focus is 3, so the equation is:
and simplify a bit to
I'm not sure how far down you need to simplify that. Taking it a few steps further gives you:
and then to
It all depends upon the form you're being asked for.
