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B

Step-by-step explanation:

(B) 10 is a composite number.

Because she was able to arrange the tiles in 2 ways, its prooved that there are more factors than 1 and 10 for the number 10 so its a composite number

(x+3)(x+7)

step-by-step explanation:

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.