Answer:
( a ) Probability that the test comes back negative for all four people = .9723
( b ) Probability that t he test comes back positive for at least one of the four people = .0277
Step-by-step explanation:
Given
The probability of the test will accurately come back negative if the antibody is not present = 99.1 = .991
The probability of the test will accurately come back positive if the antibody is not present = .009
Suppose the test is given to four randomly selected people who do not have the antibody .
( a ) Probability that the test comes back negative for all four people =
= = .9723
If we say E = P( all 4 test are negative) or we say E = P( not of the all 4 test are positive)
P( at least one of the 4 test are positive) = 1 - P( not of the all 4 test are positive) = 1 - P( all 4 test are negative)
( b ) Probability that t he test comes back positive for at least one of the four people = 1 - P( all 4 test are negative)
= 1 - .9723
= .0277
Answer:
1 1/10 is the answer
Step-by-step explanation:
12\10= 1 1/1
It would be greater as 67 rounded up is 70 and 36 rounded up is 40 thus, you are multiplying two larger numbers than in your original equation which will result in a larger product.
When the ball hit the ground, the height will be equal to "0".
h=0
Then:
-16t²+30t+6=0
we have to solve this square equation:
t=[-30⁺₋√(900+384)] / (-32)
t=(-30⁺₋√1284)/(-32)
we have two solutions:
t₁=(-30-√1284)/(-32)=2.06
t₂=(-30+√1284)/(-32)=-0.18 This solution is not valid.
Answer: 2.06 seconds.
t
<span>2,093 divided by 10 to the 3 power
= (2.093 x 10^3) / 10^3
=2.093</span>