Answer:
B.) 20 degrees
Step-by-step explanation:
We know that the sum of angles in a triangle is equal to 180, so we can say that 80 + 4x + x is equal to 180. This means that 5x is 100 degrees, meaning that x = 20 degrees. The option with this answer is B.).
Answer: 10
Step-by-step explanation:
Any number in between absolute value bars is always going to be positive. So it becomes:
1 + 9 = 10
Answer:
x1= -4/3 x2= -6/5
Step-by-step explanation:
y= (3x+4)(-5x-6)
now first we replace y with a zero 0
0=(3x+4)(-5x-6)
now we put the 0 to the right
(3x+4)(-5x-6)=0
when the product of factors 0, at least one of the factors is 0 so we do this:
3x+4=0
-5x-6=0
now we solve 3x+4=0 and it leads to:
x=-4/3
after that we do the same for -5x-6=0:
x2=-6/5
sorry if you dont understand it too good, im not really good at explaining, and its also my first time answering in this app, but i hope you understand and it solves your problem!