It's going to be a 3x2. Im assuming its [ 5 10 on the first row, second row would be -2, -4, then the bottom row would be 1, 2] Hope I helped!
Answer:
108.41
Step-by-step explanation:
Answer:
There are no like terms.
so its -7a+2b
Step-by-step explanation:
The mean of a frequency distribution is given by
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