Digital ACT Math Practice Question #2082
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
u · v = 7*2 + (1)*-9 = 5.
The dot product is u · v = (u_1)(v_1) + (u_2)(v_2) = (7)(2) + (1)(-9) = 5....
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