Answer:
-7
Step-by-step explanation:
Given
Required
The first difference
To do this, we simply calculate the difference between the consecutive y-values.
i.e.
So, we have:
<em>Hence, the first differences are -7 (all through)</em>
Answer:
yes
Step-by-step explanation:
In an isosceles triangle, one perpendicular bisector is also an angle bisector.
Answer:25
Step-by-step explanation:
Consider this:
If a test gives a positive result for an infected person 98% of the time, that means that 2% of the time, it gives a negative result for an infected person, which would be a false negative.
Then,
if the test is 97& accurate (not precise) for non-infected people, that means that it gives a negative result 97& of the time. So a positive result will be given 3% of the time for non-infected people, which is considered a false positive.
Im not sure about the second one, but for the first one, Alex’s height is 167.64 cm. :)
