Answer:
9.42
Step-by-step explanation:
1800×6.5%×30=b
b-1800=a
a) $1,710
b) $3,510
All possible roots is the attachment
X=-1,-1/4,-4
Factor with the GCF 1
quadratic formula:
x = <u>-b ± √(b² - 4ac)</u>
2a
7x² - x = 7
subtract 7 from both sides:
7x² - x - 7 = 0
plug values into the quadratic formula:
x = <u>-(-1) ± √((-1)²- 4(7)(-7))</u>
2(7)
simplify:
x = <u>1 ± √(197)</u>
14