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:

Step-by-step explanation:
we know that


Let
x ------> new battery life
The equation that represent this situation is

convert to mixed number

Answer:
138
Step-by-step explanation:
as 92÷4 = 23 and 23x6 = 148
Answer:
44,000
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
Triangle=180 degrees
96+34=130
180-130= 50
50 degrees is the third angle