Barbara used the distributive property to write an expression that is equivalent to 7 d + 63. Her work is shown below. The greatest common factor is 7 so 7 d + 63 = 7 (d + 63)

What was Barbara’s error?
Barbara wrote (d + 63) instead of 63 d).
Barbara wrote (d + 63) instead of (d + 9).
Barbara wrote (d + 63) instead of (d + 56).
Barbara wrote (d + 63) instead of (10 d).

4. find the geometric mean of 4 and 12. 24 8

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.