Answer:
85
Step-by-step explanation:
5×9=45
8×5=40
add it
85
Y=2x+1
2x-y=2
2x-(2x+1)=2
-1=2
-1+1=2+1
0=3
No solution
Well we can make one of those t charts, so start with 23 and 9, then add 4 to the 23 and 6 to the 9 until they match. In this case it would be 5 Months, I am assuming it is D and that instead of 51 it should be 5
the maximum height is the y-value of the vertex.
h(x) = -2x² + 20x + 48
<em> a=-2, b=20, c=48</em>
h(5) = -2(5)² + 20(5) + 48
= -50 + 100 + 48
= 50 + 48
= 98
Answer: 98 meters