Answer:
a) -7 & b) -6
Step-by-step explanation:
Here,
a) x = 0
Solution ↦

b) x = -1
Solution ↦

<h3>
Answer:</h3>
sin(Y) = 4/5
<h3>
Step-by-step explanation:</h3>
The sine of one of a pair of complementary angles is equal to the cosine of the other. Given that ∠X and ∠Y are complementary, sin(Y) = cos(X) = 4/5.
_____
You can figure this from SOH CAH TOA, the mnemonic that reminds you of the definitions of the trig functions. The adjacent leg for one of the acute angles in the right triangle is the opposite leg for the other angle.
... Sin = Opposite/Hypotenuse
... Cos = Adjacent/Hypotenuse
Answer:
its 45
Step-by-step explanation:
From my research, the image supports the question. The exterior angle 5 can have up to 2 remote interior angles. Remote interior angles are the two angles inside the triangle that do not share a vertex with the external angle. From the choices, the two remote interior angles are 1 and 3. Among the choices, the correct answers are D and F.