Select all the correct answers.
1 answer:
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Answer:
A
Step-by-step explanation:
We require to find ∠ A
Subtract the sum of the given angles from 180
∠ A = 180° - (85 + 53)° = 180° - 138° = 42°
Using the Sine rule in Δ ABC, that is
=
, that is
=
( cross- multiply )
AC × sin42° = 85 × sin85° ( divide both sides by sin42° )
AC = ≈ 126.6
The final score in the video game is 67.
Step-by-step explanation:
Points earned = 50 points, 87 points
Points lost = 40 points, 30 points
Let,
Plus sign (+) represent the points earned.
Negative sign (-) represent the points lost.
Therefore,
Points earned = +50, +70
Points lost = -40, -30
Adding all the points to get final score;
Final score = 50+(-40)+87+(-30)
The final score in the video game is 67.
Keywords: integers, subtraction
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