Answer:
41.0, θ = 77.3°
This is the answer Edge 2020
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C. 41.0, θ = 77.3°
Step-by-step explanation:
The sum is ...
5(8, 4) -3(-3, -4) +8(-5, 1) = (5·8-3(-3)+8(-5), 5·4-3(-4)+8·1)
= (40+9-40, 20+12+8) = (9, 40)
The magnitude is ...
√(9² +40²) = √1681 = 41
The angle is ...
arctan(40/9) ≈ 77.3°
The resultant magnitude and direction is 41∠77.3°.
Answer: A
Step-by-step explanation: with my calculation, and the information you have give i have to say it is A.
The 63 is the err in her explanation here.
Answer 3 cans of tennis balls unless there is tax