Step-by-step explanation:
Discriminant = 16k² - 4(2)(-5k)
Since 16k² + 40k < 0, 2k² + 5k < 0, k(2k + 5) < 0.
Therefore -5/2 < k < 0.
Answer: <em>x=9,-1</em>
Step-by-step explanation:
<em>First, we are gonna start out with finding two numbers that multiply to equal -9 and add up to equal -8</em>
<em>Those numbers would be -9 & 1</em>
<em>-9+1=-8</em>
<em>-9x1=-9</em>
<em>Now we have </em>
<em>(x-9)(x+1)</em>
<em>x-9=0 x+1=0</em>
<em> +9 +9 -1 -1</em>
<em>x=9 x=-1</em>
Step-by-step explanation:
s+u
Add t: You will need to introduce brackets
(s+u) + t
Add v: Introduce another v
((s/u) + t) + v
Answer:
what is the question?
do you have to find how much she is investing?
