I would say B. By multiplying the first equation by -5, you create -5y. If you add that to the second equation, your cancelling out the 5y term, and get a new equation with only z and a constant.
Answer:
2000
Step-by-step explanation:
The distance between any 2 points P(a,b) and
Q(c,d) in the coordinate plane, is given by the formula:<span>
<span>
</span></span>
<span><span>
</span></span>
<span><span>
</span></span>
<span><span>Thus the distance between points t(13, 1.6) and v(5.4, 3.7) is found using the formula as:</span></span>
<span><span>
</span></span>
<span><span>
</span></span>
<span><span>Answer: 7.9</span></span>
C because the highest and lowest Y values are at -7 and 4.