Answer:
x = 4
Step-by-step explanation:
110ₓ = 40₅ --------- change all to base ten.
<u>the system called binary</u>
1x²+1x ¹+0x⁰ = 45¹+0*5⁰
x² + x + 0 = 20
x² + x – 20 = 0
solve x using Quadratic equation
-1 ± 
x = ------------------------------------
2 * 1
x = -5; x = 4
therefore, x = 4
12 or 13 times because 14 days is 2 weeks for 2x5=10 so that’s 4 weeks add 1 more week so I think 12
Given:
The given quadratic equation is:

To find:
The solution for the given quadratic equation in simplest form by using the quadratic formula.
Solution:
Consider a quadratic equation is defined as
, then the quadratic formula is:

The given quadratic equation is:

We have,
. Using the quadratic formula, we get



![[\because \sqrt{-a}=i\sqrt{a}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Csqrt%7B-a%7D%3Di%5Csqrt%7Ba%7D%5D)
The solutions of the given equations are
and
.
Hence, the correct option is B.
The answer is NOQ and MLJ