An accident investigator measured the skid marks of one of the vehicles involved in an accident. The length of the skid marks was 175ft. Use the formula s=24d‾‾‾‾√ to find the speed of the vehicle before the brakes were applied. Round your answer to the nearest tenth.

9514 1404 393

  64.8 mph

Step-by-step explanation:

We assume your formula is intended to be ...

(In plain text, this could be written √(24d), with parentheses indicating the contents of the radical.)

Filling in the given value of d, we find s to be ...

  s = √(24·175) = √4200 ≈ 64.8

The speed of the vehicle was about 64.8 miles per hour.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

m∠a is 90°

m∠b is 40°