Answer:
Right
Step-by-step explanation:
For a contrapositive, we switch the hypothesis and conclusion and then negate it.
Switch
If it is a tree, then it is an elm
Negate
If it is not a tree, then it is not an elm.
Not tree belongs inside not elm
Right
The answer is roughly 21.4 copies per minute
an estimate
Answer:
∠5 = 71° & ∠8 = 109°
Step-by-step explanation:
∠1 = ∠5 (corresponding angle)
∠5 = 71°
∠5 + ∠8 = 180° (angles in a striaght line is 180°)
71° + ∠8 = 180°
∠8 = 109°
Answer:

Step-by-step explanation:
Suppose number is x
Following equation can be written from question statement

Simplifying it further




Answer:
i) Because so that we can understand them steps by step
ii)We could enjoy when we study in school