2x + y = 8 x + y = 4 The lines whose equations are given intersect at
1 answer:
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Answer:5
Step-by-step explanation:
3^2+4^2=c^2
9+16=c^2
25=c^2
=c
5=c
Answer:
? = 13.6
Step-by-step explanation:
the angle between a tangent and the diameter = 90°
Then the triangle is right with legs 2 × 6 = 12 and 6.4
using Pythagoras' identity in the right triangle.
the square on the hypotenuse is equal to the sum of the squares on the legs , that is
? ² = 12² + 6.4² = 144 + 40.96 = 184.96 ( take square root of both sides )
? = = 13.6