Answer:
x= 1/2 and x= -3
Step-by-step explanation:
Let's solve your equation step-by-step.
2x2+5x−3=0
Step 1: Factor left side of equation.
(2x−1)(x+3)=0
Step 2: Set factors equal to 0.
2x−1=0 or x+3=0
x=
1
2
or x=−3
Answer:
61,56
Step-by-step explanation:
1 = 3,24 so 3,24 x 19 = 61,56
To figure out the interior angles you multiply the number of sides minus 2 by 180 so for a triangle there are 3 sides so you minus 2 to get 1 multiply it by 180 and you get 180 which is the interior angles of a triangle so to do this one you minus 2 from 6 to get 4 multiply it by 180 and you get 720 degrees
From the information given, 4 added to the unknown number is equal to 2 times the unknown number when it is subtracted from 19.
Let the number be x
x + 4 = 19 - 2 (x)
We now expand and simplify the equation by placing unknown on one side and the known on the other side
x + 4 = 19 - 2x
x + 2x = 19 - 4
3x = 15
x = 15 /3
x = 5
