The amount of time engineering majors spend studying each day is normally distributed with a mean of 210 minutes and a standard deviation of 30 minutes. Approximately of the engineering students spend between 150 and 270 minutes studying each day.

sas (side angle side)

aa(angle angle)

sss(side side side)

sas you have to find two sides with an angle in between

aa you find two angles because it will always add up to 180

sss find all sides

step-by-step explanation:

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: