Answer:
-1/5
Step-by-step explanation:
It has a rise of 2 and a run of -10, therefore it is a slope of -2/10 or -1/5
Answer:
B = 1/243
Step-by-step explanation:

We know that, in ∆ABC,
∠A+∠B+∠C = 180°
But the triangle is right angled at C
ie., ∠C = 90°
Therefore, ∠A+∠B+ 90° = 180°
⇒ ∠A + ∠B = 90°
Therefore, <u>cos(A + B) = cos 90º = 0</u>
Answer:
PRQ/3
Step-by-step explanation:
it is done by adding the first two
Answer:
C
Step-by-step explanation: