Geometry identify the reflection rule on a coordinate plane that verifies that triangle a(-1,7), b(6,5), c(-2,2) and a'(-1,-7), b'(6,-5), c'(-2,-2) triangle are congruent when reflected over the x-axis. a) (x, y) → (-x, -y) b) (x, y) → (x, -y) c) (x, y) → (-x, y) d) the triangles are not congruent

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.

What is the difference between the predicted value and the actual value

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days