Question

Solve for x:
a) x = 6
b) x = 10
c) x = 8/6
d) x = 5/10

Answer 1

To solve for x, we can use the given equations and the quadratic formula.

Step-by-step explanation:

Solving for x using the given equations

For equation b, we have (x + 1s) = 10.53 + (1)(0.72) = 11.25. Similarly, for equation c, (x - 2s) = 10.53 - (2)(0.72) = 9.09. For equation d, (x - 1.5s) = 10.53 – (1.5)(0.72) = 9.45, and (x + 1.5s) = 10.53 + (1.5)(0.72) = 11.61.

Solving the equation x^2 + 1.2x - 0.006 = 0

The quadratic equation x^2 + 1.2x - 0.006 = 0 can be solved using the quadratic formula. The solution gives us two roots, one positive and one negative. Since concentration can't be negative, the positive root is the correct solution, which is x = 7.2 × 10^-2.