N is equal to = 20 which means there were 20 trials. Based on the results, the number of times that the results showed that 1 out of 3 students ride a car going to school, there is 55% probability or 0.55. There are 11 trials out of 20 trials that have exactly 1 student that rides a car going to school.
The vertex is always halfway between the focus and the directrix, and the parabola always curves away from the directrix, so I'll do a quick graph showing the focus, the directrix, and a rough idea of where the parabola.
<span>So the vertex, exactly between the focus and directrix, must be at <span>(h, k) = (1,
–2)</span><span>. The absolute value of </span>p<span> is the distance between the vertex and the focus and the distance between the vertex and the directrix. (The sign on </span>p<span>tells me which way the parabola faces.) Since the focus and directrix are two units apart, then this distance has to be one unit, so </span><span>| p | = 1</span>.<span>Since the focus is to the left of the vertex and directrix, then the parabola faces left (as I'd shown in my picture) and I get a negative value for </span>p<span>: </span><span>p = –1</span><span>. Since this is a "sideway" parabola, then the </span>y<span> part gets squared, rather than the </span>x<span> part. So the conics form of the equation must be:</span>(y<span> – (–2))2 = 4(–1)(x – 1)</span><span>, or </span><span>(y<span> + 2)</span>2<span> = –4(</span>x<span> – 1)</span></span>
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</span></span><span><span>Please give me brainiest! I'm striving for the next rank</span></span> </span>