The probability of Erin not having a heart attack according to her family history would be 30%.
The probability of the test predicting correctly is 67%.
Therefore, the probability of the test correctly predicting that Erin will not have a heart attack would be (0.30)(0.67) = 0.201 or 20.1%.
Answer:
About 16 days.
Step-by-step explanation:
The mountain is 3.848 miles high and you climb 0.25 miles a day. So you have to divide 3.848 by 0.25 and you get 15.392. But since you have to round it to the nearest day, you round it up to 16 because if you round down to 15 you still have 0.392 of a day leftover.
Let,
The number be "x"
According to the question,
x² + 5x = 176
x² + 5x - 176 = 0
x² + 16x - 11x - 176 = 0
x (x + 16) - 11 ( x + 16) = 0
(x + 16) (x - 11) = 0
Now,
Using zero product property:
Either,
x + 16 = 0
x = -16
Or,
x - 11 = 0
x = 11
So,
The number is either "-16" or "11".
Answer:
1.2 minutes
Step-by-step explanation:
So its saying it takes 6 mins to do 5 laps. Thats a little over a min per lap so we now its going to be over 1. The first step is to divide 6/5. Then you get 1.2
Answer:
Irrational
Step-by-step explanation:
Because it's π can be represented as 22/7 (not exact value) so it's irrational
