∠1∠1 and ∠2∠2 are a linear pair, and ∠2∠2 and ∠3∠3 are vertical angles. m∠2=(5+4y)∘m∠2=(5+4y)∘ and m∠3=(6y−25)∘m∠3=(6y−25)∘ . what is m∠1m∠1 ?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

12 3 4 5 6 7 8 9 10time remaining01: 24: 54which graph represents this system? y=1/2x + 3 y= 3/2x -1

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?