Answer:
The answer to the question is 16
Step-by-step explanation:
To find out the answer all we need to do is:-
Do addition for the first set of 20's. ( Or Multiply The 20's)
20 + 20 + 20 + 20 + 20 (or) Number of 20's = 5
= 40 + 40 + 20 The number = 20
= 80 + 20 Therefore, 20 × 5 = 100
= 100
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Number of tens = 2 Therefore, 10 × 2 = 20
The number = 10
Now, we subtract 100 - 20 = 80.
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We have 80 and now we divide the number by 5
If we do that we get the answer as 16.
I hope this answer helps.
Answer:
a₁₇ = - 3
Step-by-step explanation:
substitute n = 17 into the nth term rule
a₁₇ = 77 + 16 × - 5 = 77 - 80 = - 3
Answer:
1) Angle AOC + Angle COB = Angle AOB
Angle AOC = X
Angle COB = Y
putting in equation, we get
X + Y = AOB
2) Angle X + Y = AOB (proved above)
AOB = 90° ( given)
Angle X + Angle y = 90°
Angle X is the complement of Y
