Answer: the first one is a matrix. the second one is functional.
Step-by-step explanation:
Answer: [C]: "<span>numbers which cannot be expressed as a ratio of integers."
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It doesn’t let me get in the link
Answer:
x=6
Step-by-step explanation:
Since y=7 when x=2, we can from here simplify and see that y=3.5 when x=1. If y=21, then we multiply 7 by 3 which is 21, and since we must keep a proportion, we must multiply 2 by 3 and get 6 as the answer.
If the only thing we know about x is that it is negative, we only know that -x will always be positive.
