Answer:
Step-by-step explanation:
14/16 or 7/8
From equation 1 e=23-6f
sub 1 into 2. 2(23-6f)-f=7
46-12f-f=7
46-7-12f-f=0
39-11f=0
39=11f
then u divide both side by 11
therefore f=3.55
subtitude f in 1
6(3.55)+e=23
21.3+e=23
e=23-21.3
e=1.7
Answer:
((1+2)*3+4)*5
Step-by-step explanation:
1+2×3+4×5=65
-----------------------
- ((1+2)×3+4)×5=
- (3×3 + 4)×5 =
- (9 + 4)×5 =
- 13×5 = 65
We know, Volume of rectangular prism = l * b * h
If all dimensions are doubled, then it would be: 2 * 2 * 2 * v
V' = 8V
In Short, Volume will increase to it's 8 times
Hope this helps!
Answer:
Prob.3
Denote r: radius of circle O
Formula for calculating AOB sector:
Area = pi*r^2*angle/360
Area = pi*r^2*45/360 = 18 pi
=> r^2 = 18*360/45 = 144
=> r = 12
For prob.4, give it a try, follow the formula I gave. Good luck !
(answer : r = 6)
