First set up the equation (sum of the angles is 180)
2x + 2(x-1) + (5x +2) = 180
distribute:
2x + 2x -2 + 5x +2 = 180
combine like terms:
9x = 180
solve for x:
x = 20
SO:
2x° = 2(20) = 40 degrees
2(x-1)° = 2(20) - 2 = 40 - 2 = 38 degrees
5x + 2°= 5(20) + 2 = 100 + 2=102 degrees
check: 40 + 38 + 102 = 180
Answer:
2x+3
Step-by-step explanation:
if we need to find any polynomial factor you need to do
2x^2 +5x +3 is divided by the known factor x+1
if you have cas calculator
go to menu- algebra- factor -type the 2x^2 +5x +3
the answer will be 2x+3
Answer: a = 2,84
Step-by-step explanation:
34(4a + 12) = 21 a =
136a + 408 = 21
136a = -408 + 21
136a = - 387
a = <u>- 387 </u>
136
a = - 2,84
Answer:about 31 miles per hour
Step-by-step explanation: when u dive 184 by 6 you get 30.6666 which rounds to 31 miles per hour. Have a great day!
