Answer:
Step-by-step explanation:
B = { x, y } = { } , { x }, { y }, { x, y }
C = { 1, 2, 8 } = { } , { 1 }, { 2 }, { 8 }, { 1, 2 }, { 1, 8}, { 2, 8}, { 1, 2, 8}
. E = { a } ={ } , { a }
2. { }, {x}, {y}, {x,y}
3. { }, {1}, {2},{8},{1,2},{1,8},{2,8},{1,2,8}
4. { }, {a}, {b}, {c}, {d}, {a,b}, {a,c}, {a,d}, {b,c}, {b,d}, {c,d}, {a,b,c}, {a,c,d}, {a,b,d}, {b,c,d}, {a,b,c,d}
5. { }, {a}
59
1) so you start with the mean being 72x5=360
2)100+42+87+66=295
3) 360-295=65
(you get the 5 from the amount of numbers there are) P.S sorry if I'm wrong or this doesn't help
-18
Essentially the same as (-6) - 12
9/10 in simpliest form is 9/10
In order to simplify a fraction there must be:
1. A number that will divide evenly into both the numerator and denominator so it can be reduced. No such number exists for 9 and 10.
or
2. The numerator must be greater than the denominator, (an improper fraction), so it can be converted to a mixed number. 9 is not greater than 10.
9/10 as a decimal: 0.9
9/10 as a percent: 90%
Answer
well is you know 8+8=16 then....3-11=8
