Number 1 is a positive change
Number 2 is a negative change. So is the rest. I took this assessment today while at the k12 school and these are the right answers. Hopes this helps!
Answer:
6m + 2n
Step-by-step explanation:
we have to added up the like therms
like therms are therms that have the same literal part
6m + 2n
Average speed is ALWAYS calculated as total distance / total time
<span>total distance is 100mi </span>
<span>total time is (50mi / 33) + (50mi / 80) </span>
<span>total time is = 1.52 + 0.625 = 2.145 </span>
<span>so average speed going to grandmothers house is 100mi / 2.145 hrs = 46.62 mph </span>
<span>on her return trip </span>
<span>x = V1 x t/2 + V2x t/2 </span>
<span>100 = 33t/2 + 80t/2 </span>
<span>100 = 113t/2 </span>
<span>t = 100x2/113 = 1.7699hrs </span>
<span>average speed = 100mi/1.7699hrs = 56.60mph</span>
Answer:
(-1,2)
Step-by-step explanation:
The solution to the system graphed is where both of the lines intersect. That's because the intersecting point means that when you substitute x into both of the equations, you'll get the same y value.
If you look on the graph, the intersecting point is (-1,2)
Answer:
x to the 2 power-9x+14
Step-by-step explanation:
