Answer:
-8 + x ≥ 9
Step-by-step explanation:
Let's look at your sentence:
The <u>sum of -8 and a number</u> is <u>at least 9 </u>what is the equation look like
Sum is the result of adding
At least 9 means that the number is 9 or greater.
So what you have here is an inequality expression:
Sum of -8 and a number
-8 + x
x here is the "number" since we do not know the value we will use "x" to represent that number.
At least 9
At least means that it is equal or greater, so we use this expression ≥
and so we use put that all together
-8 + x ≥ 9
Take the complex zero 1+i. There must be another zero 1-i to balance it, so we have the factors (x-1-i)(x-1+i)=x²-2x+1+1=x²-2x+2.
So the polynomial is (x+3)(x²-2x+2)=x³-2x²+2x+3x²-6x+6=x³+x²-4x+6, option D.
<h2><u>Anѕwєr :</u></h2>
64
<h2><u>Explαnαtion :</u></h2>
→ √x = 8
Now, squaring both sides in order to calculate the value of x.
→ (√x)² = (8)²
→ <u>x = 64</u>
Therefore, the value of x is 64.
The answer should be 25.64$
You multiple that by 8% and then what you get out of it you add on to what you got as the total .