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3 years ago

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find the distance traveled by a train on a circular track road with radius of 78.8 m which will cause the train to change direct

ion by 21.3 degrees. Round to desiml place.

1 answer:

dangina [55]3 years ago

3 0

Check the picture below.

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Let A and B be two events in a sample space S such that

klasskru [66]

P(A|B)<span>P(A intersect B) = 0.2 = P( B intersect A)

</span>A) P(A intersect B) = <span>P(A|B)*P(B)
Replacing the known vallues:
0.2=</span><span>P(A|B)*0.5
Solving for </span><span>P(A|B):
0.2/0.5=</span><span>P(A|B)*0.5/0.5
0.4=</span><span>P(A|B)
</span><span>P(A|B)=0.4
</span>
B) P(B intersect A) = P(B|A)*P(A)
Replacing the known vallues:
0.2=P(B|A)*0.6
Solving for P(B|A):
0.2/0.6=P(B|A)*0.6/0.6
2/6=P(B|A)
1/3=P(B|A)
P(B|A)=1/3

5 0

3 years ago

Solve for x. 4−(2x+4)=5

WITCHER [35]

$4-(2x+4)=5\\-2x-4=1\\-2x=5\\x=-2.5$

Put it back into the equation,

$4-(2x+4)=5\\4-(2(-2.5)+4)=5\\4-(-5+4)=5\\4-(-1)=5\\5=5$

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✉️ If any further questions, inbox me! ✉️

3 0

3 years ago

Expand the expression 8(x-7)

Minchanka [31]

Answer:

ig it Will be 8x-56 becoz 8 multiplies x and 7 and we get 8x-56

7 0

3 years ago

Read 2 more answers

A vector quantity always contains two components: ___________ and _____________.

PSYCHO15rus [73]

Magnitude and direction

4 0

3 years ago

What is the greatest common factor of 8b^2 and 10b

Mariulka [41]

Answer:

2b

Step-by-step explanation:

The greatest common factor is the largest factor shared by the set of terms.

In this case, you will divide 2b from both terms:

$\frac{8b^2}{2b} = 4b\\ \frac{10b}{2b} = 5 \\\\GCF: 2b$

4 0

3 years ago