Answer:
D. variables
Step-by-step explanation:
Answer:
The probability is 0.245
Step-by-step explanation:
Call B the event: Nathan is allergic to penicillin.
We know from your family history that

So the probability that Nathan is not allergic to penicillin is

Then, the test has 98% accuracy, that is: The probability that the test result is correct is 0.98.
So the probability that the test predicts that Nathan is not allergic and is not really allergic is:

There is a 24.5% chance that Nathan is not allergic and the test predicts it
Answer:
A and B.
Step-by-step explanation:
4x^2 - 4x - 3 = 0
4x^2 + 2x - 6x - 3 = 0
2x(2x + 1) - 3(2x + 1) = 0
(2x - 3)(2x + 1) = 0
x = 3/2, -1/2.
The Tenths place because it's the first
My teachers taught me a trick make a C from the top to bottom
so 5 1/2 would be
5 times 1 + 2 so denominator stays the same so it 7/2.
bottom one is 22/4
make a C from top to bottom and multiply outer number to top add the bottom to that then keep denominator the same.
Hope i helped.