When you're looking to simplfy a number, the best thing to do is to list all of the factors of that number;
21- 1,3,7
8- 1,2,4,8
The only common factor between these is one, and this is what they're currently in, therefore, it cannot be simplified.
Hope this helps :)
Answer:
mx+b+a= x-12x=0.88x
Step-by-step explanation:
Answer:
x=-7
Step-by-step explanation:
-2(x+5)=4
-2x-10=4
-2x=14
2x=-14
x=-7
Answer:
y = 8
x = 21
Step-by-step explanation:
Find x first. Since there is a straight line, we can conclude it's equal to 180 degrees.
11x + 10 -61 = 180
Add 10 to negative 61.
11x - 51 = 180
Add 51 to both sides.
11x = 231
Divide 11 both sides
x = 21.
Now put x in the equations to solve.
This is for the small angle on the right side.
(21+10) = 31
This is for the big angle on the right side.
(10(21) - 61)
210 - 61 = 149.
Now for the other side, we know the degree for the smaller side on the left side since it's a vertical angle.
31 degrees for top left angle. Since we know this side is 180 just subtract 31 from 180 and you'll get 149.
18y + 5 = 149
Subtract 5 both sides.
18y = 144
y = 8.
Answer- A-16
Because when doing completing the square, you divide the coefficient of x by 2, which is 4, and the square it which is 16
