7x30 is 210. 7x3 is 21, just add a 0
The axis of symmetry of h(x) = 5x2 + 40x + 64 = -4
The formula for calculating the axis of symmetry is expressed as:
Axis of symmetry x = -b/2a
h(x) = 5x^2 + 40x + 64
a = 5 and b = 40
Answer:
20
Step-by-step explanation:
16 ÷ 80% = 20
80% of 20 is 16
8.11 x 10^-3
435
34 x 10^2
1.2 x 10^7