Which pairs of expressions give a positive result?
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-8 x-9 and 9 x 8
8 * -9 and 9 x-8
-10 * -5 and -5 *-10
-10
-5 and 5 x 10
10 x 5 and 5 % -10
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Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis