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Firdavs [7]
3 years ago
6

The circumference covered by a radar signal can be represented by the expression 400π miles. What is the approximate length of t

he radius of this circumference?
A 20 miles
B 200 miles
C 127 miles
D 40 miles
Mathematics
2 answers:
goldfiish [28.3K]3 years ago
8 0

Answer:

127 if it says to use 3.14, 200 if it does not ask to use 3.14

Step-by-step explanation:

C=2\pi r

Substitute  C for 400

400=2*r

400=2r

divided both sides by 2

Answer is 200

Rus_ich [418]3 years ago
7 0
The answer should be 200
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The U.S. National Highway Traffic Safety Administration gathers data concerning the causes of highway crashes where at least one
ZanzabumX [31]

Answer:

probability of a crash with at least one fatality if a driver drives while legally intoxicated (BAC greater than 0.09) = 0.001932

Step-by-step explanation:

P(BAC=0|Crash with fatality)=0.625

P(BAC is between .01 and .09|Crash with fatality)=0.302

P(BAC is greater than .09|Crash with fatality)=0.069

Let the event of BAC = 0 be X

Let the event of BAC between 0.01 and 0.09 be Y

Let the event of BAC greater than 0.09 be Z

Let the event of a crash with at least one fatality = C

P(X|C) = 0.625

P(Y|C) = 0.302

P(Z|C) = 0.069

P(C) = 0.028

probability of a crash with at least one fatality if a driver drives while legally intoxicated (BAC greater than 0.09) = P(C n Z)

But note that the conditional probability of probability that a driver is intoxicated (BAC greater than 0.09) given that there was a crash that involved at least a fatality is given by

P(Z|C) = P(Z n C)/P(C)

P(Z n C) = P(Z|C) × P(C) = 0.069 × 0.028 = 0.001932

Hope this Helps!!!

8 0
3 years ago
Which two solid figures have the same volume? A. An oblique solid with a base of 4 cm2 and a height of 8 cm B. A cone with a bas
kkurt [141]

In general, Volume is equal to the area of the base multiplied by the height.

Let's check the volume of each.


A.

V=area of base x height, all given, so,

V=4*8=32


B.

Volume of cone is given by,

V= one-third area of base x height, all given, so,

V=\frac{1}{3}*4*8= \frac{32}{3}


C.

Here, the slant height is given, not the altitude (height). The volume is not 32 nor \frac{32}{3}.


D.

Rectangular solid's volume is area of base times height, all given, so,

V=4*8=32


Hence, A and D have same volume.

ANSWER: Option A and Option D have the same volume (32)


8 0
4 years ago
What is another way to represent the ratio 40:1?
Shtirlitz [24]
40/1 is the other way
7 0
4 years ago
What is the value of x?
Tamiku [17]
Actually, the answer is 43.25 because 180-93.5 is 96.5 which is both of the other values combined. x by itself is 43.25.
6 0
4 years ago
-3÷(-2/5) simplify the expression
Vika [28.1K]

Answer:

7.5 is the answer you are looking for

8 0
3 years ago
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