Answer:
20 and -20
20^2 = 400
(-20)^2=400 since two negative is positive
1) The triangles are congruent by SSS.
The two tick marks indicate two pairs of congruent sides; it is evident that the third side is congruent by the way the diagram is drawn - the bases of the triangles are together and appear to be the same length.
2) The triangles are congruent by SAS.
The two pairs of tick marks indicate congruent sides, and their included angles are congruent because they are vertical angles, and vertical angles are always congruent.
Answer:
It is 6%, as 360 is earned each year.
Step-by-step explanation:
Step-by-step explanation:
sorry i couldn't solve the last and the last second one
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If there is any kind of suspicious mistake
then sorry
Equate whats inside (arguments) 
with base period of sine function 
and solve for x to get period,
So the period of the graph of the given function is precisely 2.
Hope this helps :)
