Answer:
Step-by-step explanation:
property of equality for multiplication, property of equality for multiplication says that if a=b then axc=bxc. If you multiply the same number to both sides of an equation, the equation is still true.
As you see this is a right angle, so the sum of the two angles = 90°
So,
(x + 42) + 3x = 90°
Remove the parentheses:
x + 42 + 3x = 90
Combine like terms:
4x + 42 = 90
Subtract 42 on both sides:
4x = 48
Divide 4 on both sides:
x = 12
~
3(k-2)² -2
3(k²-4k+4) -2
3k²-12k+12-2
3k² -12k +10
First, we add the numbers. This gives us 715.
Then, we divide it by the amount of numbers. This gives us. 715 divided by 11.
This simplifies to 65.
Ggggggggggggggggggg 51,359
