Solve for x: -3x -3= -3(x+1) A All real numbers B No Solution C 6 D -6
1 answer:
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Answer:
3 + 4
Step-by-step explanation:
If u = < x₁, y₁ > and v = <x₂ , y₂ > , then
u • v = x₁x₂ + y₁y₂
Given
u = < , - 1 > and v = < 3, - 4 >, then
u • v = 3 + (- 1)(- 4) = 3
+ 4