Answer:
x = 90 , y = 43
Step-by-step explanation:
Since AB and AC are congruent , then Δ ABC is isosceles with base angles congruent , that is
∠ ABD = ∠ ACD = 47°
AD is the perpendicular bisector of BC , so
∠ ADB = x = 90
the sum of the 3 angles in Δ ABD = 180° , then
y = 180° - (90 + 47) = 180 - 137 = 43
The correct answer is y = -1/28x^2
It’s D, 10.7
8 - (4.7 x (-1)) - 2 = 10.7
Answer:
can you elabrate on that please
Step-by-step explanation: