Halp pl ! the speed of an object falling is directly proportional to the time it has fallen. after an object falls for 3 seconds, its speed is 16.5 m/s. what is the object's speed after it has fallen for 7 seconds? a) 27.5 m/s b) 30.7 m/s c) 33.9 m/s d) 38.5 m/s thx

It should be the fourth option or the letter "D"

Step-by-step explanation:

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.

114 plus 113 times 2 and 114 times 3