Answer:
x = - 3 ± 3
Step-by-step explanation:
given the equation x² + 6x - 9 = 0
We can solve for x using the quadratic formula
x = ( - b ±
) / 2a
with a = 1, b = 6 and c = - 9
x = ( - 6 ±
) / 2
= ( - 6 ±
) / 2
= ( - 6 ±
) / 2
= ( - 6 ± 6
) / 2
x = - 3 ± 3
= - 4.2x + 3 + 2.5x - 6
= 2.5x - 4.2x + 3 - 6
= - 1.7x - 3
Answer:
Step-by-step explanation:
<u>Full volume is:</u>
- V = lwh
- V = 3*1.5*7.9 = 35.55 cm³
<u>Volume of tea required:</u>