The answer is 40°
i will tell you how,
Total angle sum of any triangle is 180°
∠A + ∠B + ∠E = 180°
70° + 80° + ∠E = 180°
solve for ∠E
∠E = 30°
Now solve use ∠BDE,
∠B + ∠D + ∠E = 180°
20° + 90° + 30° + x = 180° (in triangle DEB, ∠E = 30 + x ) (∠D is 90°)
solve for x
there fore, x = 40°
Just plug in -1 for x and u should get ur answer
Answer:
Based of the question we can't come to a definite answer as we need the diagram to see the values.
F ( x ) = √( 12 x + 24)
12 x + 24 ≥ 0
12 x ≥ - 24
x ≥ - 24 : 12
x ≥ - 2
Answer:
The domain of the function is:
x ∈ [ - 2, + ∞ )
