Answer:
<u>Answer</u><u>:</u><u> </u><u>4</u><u>x</u><u>²</u><u> </u><u>-</u><u> </u><u>9</u><u>x</u><u> </u><u>+</u><u> </u><u>2</u><u>0</u><u> </u>
Step-by-step explanation:
• General quadratic equation:

• sum of roots → 4 + 5 = 9
• product of roots → 4 × 5 = 20
• substitute:

Answer:
18 hrs
Step-by-step explanation:
In one hour, the car travels 30 miles. We need to multiply a number with 30 to get 540. This number is 540/30 = 18.
Hope this helps!
Answer:
10
Step-by-step explanation: