The integer factor pairs of the first number can be written as ...
... -9 = -1×9 = -3×3 = -9×1
The sums of the factors in these factor pairs are, respectively, ...
... 8, 0, -8
The factor pair (-9, 1) meets your requirement.
12 + 3x = 30 // what is x?
3x = 18
x = 6
Answer:
3. x = y - 3
Step-by-step explanation:
You want to move all numbers on the same side of x to the other side with y. Whenever doing this, we have to reverse the operation. In this problem, we have + 3 with x. So we will need to subtract 3 from both sides.
x + 3 = y
x = y - 3
The answer i believe is C
Cos²(x) + sin²(x)
¹/₂[1 - cos(2x)] + ¹/₂[1 + cos(2x)]
[¹/₂ - ¹/₂cos(2x)] + [¹/₂ + ¹/₂cos(2x)]
¹/₂ + ¹/₂ - ¹/₂cos(2x) + ¹/₂cos(2x)
1
