Step-by-step explanation:
By Descrates' Rule of Signs,
x² + 99x + 127 changes sign 0 times.
Hence it has 0 positive roots.
Since the discriminant b² - 4ac is also positive, there are 2 real distinct roots.
Hence both the roots are negative. (B)
Answer:
1/4
Step-by-step explanation:
To get the answer, multiple 20 by 0.45= $9 than subtract 9$ from $10 which equals $1.
Answer:
3
Step-by-step explanation:
