Answer:
Step-by-step explanation:
Let
x------> amount of baseball cards Isaac had before he sold
we know that
so
Solve for x
So I know that this isn’t the kind of app I should be speaking about my problems but I just want to burst out into tears from ho
w hard school is. I’ve stayed up multiple nights just to get one sheet of math done and in my other classes I’m doing okay but in math I got a f on my report card and I’m not sure what to do since I’ve asked my parents multiple times if their able to switch me to online school or even get me a tutor at least but they said I should use my phone and cheat but I want to learn so I could be ready for next year if we are gonna do the same thing! but even the phone I can’t cheat since I’m getting bad in my math tests so it wouldn’t matter if I even I drop out and do something else. Although I just want my family to be proud of me and I’m just freaking out since I don’t understand a single thing from the stuff we are doing in math and I know I sound dramatic but I just wanted to talk to someone about how I feel I guess.
1 answer:
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Answer: i - j - k
Step-by-step explanation:
Taking the cross product between two vectors will give you a third vector that is orthogonal(perpendicular) to both vectors.
<1,1,0> x <1,0,1>
the determinate of the matrix: <1,-(1),-1>
or: i - j - k