Answer:
total question =90
she obtained 75% of first 40 questions
- No. of question she got correct in first 40 = 75% * 40 = 30
2. in order to get 80% out of 90,
the no. of questions got correct by Ama = 80% * 90 = 72
3. As she already got 30 c0rrect in first 40 questions, the number of question she needs correct for remaining 50 = (72-30) = 42
percentage = 42/50*100% = 84%
Answer:
See below ~
Step-by-step explanation:
<u>Details of the graph of the quadratic equation</u>
- Minimum value = <u>-1</u>
- Domain : <u>all real numbers</u>
- Range : <u>y ≥ -1</u>
15x=180
x=12
hope this helps
