Answer:

Step-by-step explanation:
Surface area for a sphere is
π
,
Diameter is 10, so radius is 5. Radius is half of diameter.
A=4×π×
=
Nearest tenth: 
Therefore, it is 
Good luck!
Answer:
0.5885
Step-by-step explanation:
The possible ways for a test to be positive are:
- Woman is pregnant & true positive
- Woman is not pregnant & false positive
The probability of a positive is:

Therefore, the probability that a woman is actually pregnant given that she tested positive is:

The probability is 0.5885
Answer: B
Step-by-step explanation:
She was 3.8 minutes faster, so you take Stephanie's time and subtract the 3.8 minutes.
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