Answer:
90
Step-by-step explanation:
Find total marks needed for a 90.
90 x 4 = 360 marks
Then, add up the marks on the three tests.
83+91+86 = 260 marks
Finally, subtract from the 360 marks needed.
360 - 260 = 100
Thus, the student needs to score 100 marks in order to get a 90.
Pretty sure it's (x-7)^2 - 25.
Answer:
15 feet: 30 divided by 2 is 15
Step-by-step explanation:
Answer:
453.73cm³
Step-by-step explanation:
V
=
π
r
2
h
3
3.14×8.5²×6/3=453.73
