Answer:
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Answer:
Axis of symmetry is x = -4
Step-by-step explanation:
h(x)= 5x^2+40x+ 64
Use the formula for axis of symmetry: x = -b/(2a)
Here, a = 5, b = 40, c = 64
so
x = -40/(2*5) = -40/10 = -4
Axis of symmetry is x = -4
7/50 = 0.14
0.14 x 100 = 14
14%
18/20 = 0.9
0.9 x 100 = 90
90%