Which problems result in a positive number?

choose all answers that are correct.

a.
–4.2 – 3.1

b.
3 + (–5.4)

c. 7 1/2- (-3 1/4)

d.
–2 – (–3.6)

when studying polynomials, you often hear the terms zeros, roots, factors and x x the multiplicity of a zero is important because it tells us how the graph of the let's look at the graph of a function that has the same zeros

step-by-step explanation:

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.