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IRISSAK [1]
3 years ago
12

On discovering that her family had a 70% risk of heart attack, Erin took a treadmill test to check her own potential of having a

heart attack. The doctors told her that the reliability of the stress test is 67%. The test predicted that Erin will not have a heart attack. What is the probability after the test was taken that she will have a heart attack? 0.4051 0.5010 0.4653 0.6632 NextReset
Mathematics
1 answer:
andriy [413]3 years ago
7 0
I believe it is <span>0.5010 but sorry if i'm wrong.</span>
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I WILL GIVE 20 POINTS TO WHOEVER HELPS
Roman55 [17]
-4 to-6 is 2 left for x and 4 to -3 is 7 left so g is 2 left of -6 and 7 left of -3 = -8,-10
6 0
3 years ago
A group of tourists spends $156 to rent snorkels and fins. A total of 15 snorkels and 18 pairs of fins are rented. Renting a sno
Bas_tet [7]
You could use many methods to find the answer to this problem, but I am going to use the most efficient one I know.
18f+15(4f)=156
F is for fins. We should now solve the equation.
18f+60f=156
78f=156
156÷78=2
So fins cost 2 dollars. Now, we know snorkels cost four times the amount of fins. Four times 2 is eight. So the snorkels cost $8 to rent. Let's check our math.
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5 0
3 years ago
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This one is a bit hard so i need help with this.
Rainbow [258]

Answer:

1440 ft squared

Step-by-step explanation:

v = lwh (length times with time height)


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- Courtney

3 0
3 years ago
5 and 4 sevenths times negative 2 and 2 fifths
Dimas [21]

Answer:

3/2

Step-by-step explanation:

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6 0
3 years ago
The number 0.4 can be written as 4/10, so it is a rational number?
riadik2000 [5.3K]
Hello, 

               Yes of course 0.4 or 4/10 is a rational number :)
 

                                                                          Have a nice day :)
5 0
3 years ago
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