Answer:
a) {15}
b) { }
c) D or {5, 7, 8, 12, 13, 15}
d) no
e) yes
Step-by-step explanation:
a) AUB: even or prime
D - (AUB) = {15}
b) AUC: even or odd; basically all integers
D - (AUC) = { }
c) A∩B : even and prime, that's only 2
D - (A∩B) = {5, 7, 8, 12, 13, 15} = D
d) A and B, both contain 2
Not disjoint
e) A and C are disjoint because no number can be both, even and odd
3x -7 = 5x + 19
-7 = 2x + 19
-26 = 2x
x= -13
Answer : 1/2 gallon
Explanation:
There were a total of 5 gallons collected, as the question states.
There are 3 x's above 1/4, 2 x's above 3/8, 4 x's above 5/8 and 1 x above 1. This is a total of
3+2+4+1 = 10 x's. This means there were 10 trees.
If 5 gallons is evenly distributed among 10 trees, this would give us the ratio 5/10, which simplifies to 1/2 gallon per tree.
....this answer is not from me. The same question was asked on brainy and I've copy pated it, it is the right answer tho. Credit goes to "MsEHolt" for answering.
The scale factor is obviously 7, because the 28 divided by 4 equals 7.
This means that the larger octagon's perimeter will be 7 times the smaller octagon's perimeter.
So 34 * 7 = 238.
Answer: B
Step-by-step explanation:
