Answer:
i. A = 6
ii. B = 32 + 32 = 64
iii. C = 3
iv. D = 36 ÷ (6 + 5 + 2) = 2.8
v. E = (148 × 2) + (36 × 6) = 512
Step-by-step explanation:
From the given quadratic expression;
-24x +7 = 3
-24x +7 - 3 = 0
-24x + 4 = 0
Applying the quadratic formula,
x = (-b ± ) ÷ 2a
We have; a = 4, b = -24 and c = 4.
So that,
x = (- (-24) ± ) ÷ 2(4)
= (24 ± ) ÷8
= (24 ± ) ÷8
= (24 ± 22.63) ÷8
x = (24 + 22.63) ÷8 or (24 - 22.63) ÷8
= or
x = 5.8 or 0.2
Therefore, x = 5.8 or x = 0.2.
From these steps and solution, A = 6, B = 64, C = 3, D = 2.8 and E = 512.