Add all of them up and then divide by how many numbers you have and you get
78.5
Answer: A, B, D
Explanation:
40/ 160 = 0.25
1/4 = 0.25
22/88 = 0.25
80/330 = 0.2424...
16/64 = 0.25
<span><span>1. </span></span>Draw a line segment of length s. Label its endpoints PPP and QQQ.<span><span>
</span><span>2. </span></span>Extend the line segment past QQQ.<span><span>
</span><span>3. </span></span>Erect the perpendicular to PQ−→−normal-→PQ {PQ} at QQQ
<span><span>4. </span></span>Using the line drawn in the previous step, mark off a line segment of length sss such that one of its endpoints is QQQ. Label the other endpoint as RRR.<span><span>
</span><span>5. </span></span>Draw an arc of the circle with center PPP and radius PQ normal PQ\ {PQ}.<span><span>
</span><span>6. </span></span>Draw an arc of the circle with center RRR and radius QR normal QR\overline{QR} to find the point SSS where itintersects the arc from the previous step such that S≠QSQS\neq Q.<span><span>
</span><span>7. </span></span>Draw the square PQRSPQRSPQRS.
ANSWER
The vertex form is

EXPLANATION
We want to write

in the vertex form which of the form

We achieve this BG completing the square.
We proceed as follows,

We add and subtract half the coefficient of x multiplied by a factor of 3 which is

This gives us,

We still factor 3 out of the first two terms to get,

We now got a perfect square, which factors to,

The equation is now in the vertex form.