Answer: x=4.5
not sure if it’s correct if it’s not i’m sorry
Answer:
1
Step-by-step explanation:
3(-2y) +2y = -4
-6y+2y=-4
-4y=-4
y=1
7 were in each pack because orginally he had 28 he gave four away. 7*4=28
Answer:

Step-by-step explanation:
If AB = 5 , then AE = 5 [Radii of the same circle]
So,
AC = AE + EC
AC = 8+5
AC = 13 units
Now, Using Pythagorean theorem to find the missing side i.e. BD because tangent strikes the circle at 90 degrees making the triangle a right angled triangle

Where c = AC , a = BD and b = AB

169 = BD² + 25
Subtracting 25 to both sides
169 - 25 = BD²
BD² = 144
Taking square root on both sides
BD = 12 units
Answer:
C
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosθ =
=
, then
θ =
(
) ≈ 64° ( to the nearest degree )