Answer:
D
Step-by-step explanation:
All the other awnsers are across the line which shows that the lines are parallel, by process of elimination D is the only option which stands out.
Answer:
x= 20
Step-by-step explanation:
Answer:
x=8
Step-by-step explanation:
Let's say this mystery number is x.
6 times this x is 16 less than the square of x so we can write this as:

We can then re-arrange this into a quadratic and simplify it so:


x=8, x=-2
And since the question is asking for the positive solution,
x=8
Answer:
0.0392 = 3.92% probability that the test result is positive.
Step-by-step explanation:
Probability of a positive test:
95% of 1%(person has the disease)
100 - 97 = 3% of 100 - 1 = 99%(person does not have the disease).
What is the probability that the test result is positive?

0.0392 = 3.92% probability that the test result is positive.