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zalisa [80]
3 years ago
14

Help, I don’t understand

Mathematics
1 answer:
Sedbober [7]3 years ago
6 0

Answer:

A=90°,B=90°,C=90°,D=90°

Step-by-step explanation:

all of the numbers A-D add up to 360°

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<span>Answer by </span>stanbon(75310)   (Show Source):You can put this solution on YOUR website!
<span>s=square root 30df, where d represents the length of the skid marks in feet and "f" represents the drag factor of the road. A vehicle that was involved in an accident on an asphalt road was traveling at a speed of 45 mph when it started skidding. If the drag factor for asphalt is 0.75 find the length of the skid marks made by the car.
S = sqrt(30df) 
45 = sqrt(30*d*0.75)
----
45 = sqrt[(90/4)d]
-----
45 = (3/2)sqrt(10d)
30 = sqrt(10d)
10d = 900
d = 90 ft.
================
</span></span></span></span></span>
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3 years ago
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mrs_skeptik [129]
4*( \frac{1}{4^{-3}} )+12\\=4*4^3+12\\=4^4+12\\=256+12\\=268
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