Answer:
20
Step-by-step explanation:
Answer: 0.0001
Step-by-step explanation:
Given : For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean of 114.8 and a standard deviation of 13.1.
i.e.
Sample size =4
Let x be the sample mean systolic blood pressure.
Then the probability that their mean systolic blood pressure is greater than 140 will be
Hence, the required probability = 0.0001
There are 60 minutes in an hour. From 3:36 to 4 is 24 minutes, and from 4 to 4:12 is 12 minutes. Altogether, the student spends 36 minutes on the test.
Answer:
D 1331
Step-by-step explanation:
since it already gave you the length for the bottom line it's also going to be 11cm for the other 3 lines
The answer is 74,000 years.
It can be calculated using the equation:
<span><span>
<span>
<span>
<span>
<span>
<span>
<span>
<span>
<span>
<span>
<span>
<span>
<span>
<span>
</span></span></span></span></span></span></span></span></span></span></span></span>
<span>
</span></span></span><span>
</span></span> = decimal
amount remaining, where n is a number of half-lives.
<span>Decimal amount remaining is 0.00012 (= 0.012%). Let's calculate number
of half-lives.</span>
<span>
</span>
⇒
⇒
⇒ n ≈ 13
<span>
Now we know that number of half-lives is 13.</span>
Number of half-lives is quotient of total time elapsed and length of
half-life.<span>
<span>So, total time elapsed is a product of length of
half-life (5,730 years) and number of half-lives (13). Since 5,730 years × 13 =
74,490 years, then the person died 74,000 years ago (rounded to the nearest thousand).</span></span>