Answer:
31,827 ways
Step-by-step explanation:
Total number of books, n = 18
Number of books to be selected, r = 7
Since, the order of arrangement doesn't matter ;
We use the combination formula :
nCr = n! ÷ (n-r)! r!
18C7 = 18! ÷ 11!7!
18C7 = (18*17*16*15*14*13*12) ÷ (7*6*5*4*3*2*1)
18C7 = 160392960 / 5040
18C7 = 31,827 ways
Answer:
Absolute Error = 0.7kg
Percent Error = 94.2%
Explanation:
12 - 11.3 = 0.7
11.3/12 = 94.166666666666666...
94.166... rounded to nearest tenth is 94.2
Stevie can swim 4 laps each minute.
16/4=4
X+y=12
8x+10y=102
8x+8y=96
8x+10y=102 _
-2y= -6
y=3
x+y=12
x=12- 3
x=9
or
8x+10y=102
8x+30=102
8x=102-30
8x=72
x=9
Answer:
I am pretty sure one
Step-by-step explanation:
x is being multiplied by 2
x is being cubed