Since lines a and c are parallel and we are given that c is perpendicular to b, we can infer that b is also perpendicular to a.
So, a and b are perpendicular, the angle formed by these lines should be 90.
Hence, angle 2 is 90.
Hope this helps :)
Answer: 0 ≤ t ≤ 40
Step-by-step explanation:
0 and 40 are included in all 3 number lines.
a. A' means the complement with respect to Z? If so, then
To know A' you need to write all the elements in Z that are not in A.
b. All the subsets of B, is knowed as P(B),
c. 
(Add to A the elements of B, or equivalently add to B the elements of A)
d. 
express informally speaking the elements that have in common, but there is no element in common, so
Answer: I'm pretty sure the correct answer is (B) Let me know if i'm correct!
Step-by-step explanation:
Answer:
times 3
Step-by-step explanation:
So this is like integers because it is negative numbers and positive numbers when it is positive and odd numbers that means you could use a number line because numberlines have positive and negative numbers.
