What is the surface area of a cube with a side length of 5 inches? 25 square inches
100 square inches
125 square inches
150 square inches

150

Step-by-step explanation:

you multiply 5×5 which is 25

then you multiply 25 by 6 because there are 6 sides to a cube which is 150

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have