Answer:
-15a² -14a+16
Step-by-step explanation:
<h2>(2-3a)(8+5a)</h2>
2×8=16
2×5a=10a
-3a×8=-24a
-3a×5a=-15a²
16+10a-24a-15a² = -15a² -14a+16
<h2>Length of the other leg, expressed in radical form is
</h2>
Step-by-step explanation:
We have Pythagoras theorem,
Hypotenuse² = Base² + Perpendicular²
Here we have
Hypotenuse = 9
Base = 7
Substituting
9² = 7² + Perpendicular²
Perpendicular² = 81 - 49
Perpendicular² = 32
Length of the other leg, expressed in radical form is
Graph 1 is related to table C because the first 3 values are increasing, and the 4th value decreases. Or because at 1PM, 3PM, and 5PM, the temperature was increasing, but at 7PM the temperature decreased. Graph 1 shows the first 3 points increasing, and then decreasing at the 4th point.
Graph 2 is related to table A because as the time increases/goes on, the temperature decreases exponentially/continues to decrease at a higher rate than before. From 1-3PM the temperate decreases by 2°F, from 3-5PM it decreased by 8°F, from 5-7PM the temperature decreased by 17°F.
Graph 3 is related to table B because as the time increases/goes on, the temperature decreases at a steady rate of 1°F every 2 hours.
Answer:
Europeans were so afraid of the Vikings because they raided/ took over parts of their land in Western Europe.