20
QuizMultiple Choice

Dot Product and Work — Unit test

Question 20 of 25 • Precalculus

Let r = ⟨7, 1⟩, s = ⟨–6, 2⟩, and t = ⟨–9, –3⟩. What is 10r + s – t?

Answer
A
⟨55, 9⟩
B
⟨55, 15⟩
C
⟨73, 6⟩
D
⟨73, 15⟩
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