ANSWER
EXPLANATION
From the given triangle;
Side AC and side AC are equal;
Hence;
Add 7 to both sides;
Subtract 12x from both sides;
Divide both sides by 4;
Therefore, x is 2
Step-by-step explanation:
y = -6x + 10 (1)
-5x + y = -1 (2)
Sub (1) into (2)
-5x + (-6x + 10) = -1
-5x - 6x + 10 = -1
-11x = -11
-11x/-11 = -11/-11
x = 1
Sub x = 1 into (1)
y = -6(1) + 10
y = -6 + 10
y = 4
its the second one my dude
4(2x +5) = (8x + 20)
8x =20 is an equivalent expression
In a kite, the diagonals intersect normally. Hence, we also know that XV= 4cm, half of XZ. This is because the triangle XVY and XVW are equal, but it is a general property of kitest. XVY is the right angle in this. We can use then trigonometry to calculate VY.
We have that tan30= opposite site of angle XYV/adjacent leg by the definition of the tangent. Hence tan30= XV/YV. Thus, substituting the value of the tangent: