Which types of dilation are the given scale factors? select expansion or contraction to correctly describe the type of dilation for each given scale factor. scale factors: -5 (expansion or contraction? ) -1/4 (expansion or contraction? ) 3.5 (expansion or contraction? ) 6/7 (expansion or contraction? )

-5=Expansion

-1/4=Contraction

3.5 =Expansion

6/7 =Contraction

Step-by-step explanation:

A dilation is a transformation which produces an image that is the same shape as the original, but of a different size.

Thus for scale factor -5 and 3.5 there is expansion and for scale factor -1/4 (-0.25) and 6/7 (0.857) there is contraction.

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.