Answer:
77.2 milliroentgens per hour
Step-by-step explanation:
The first step is to find the constant of proportionality
I ∝ 1/d²
I = k/d²
62.5 = k/(3)²
k = 562.5
The second step is to calculate the intensity at 2.7 meters:
I = 562.5/d²
I = 562.5/(2.7)²
I = 77.2 milliroentgens per hour
These 20 ages of children on a school bus are in order from least to greatest. 5, 5, 5, 6, 6, 7, 7, 8, 9, 10, 10, 11, 12, 12, 12
umka2103 [35]
Answer:
the interquartile range is the Q3-Q1 where Q3 is 75th percentile and Q1 is the 25th percentile.
so the total count is 20 so 25 percentile is 25% of 20 =5 and 75th percentile is 75% of 20 = 15 and since the number are already arranged in order we just pick the 15th number-5th number thus, our answer is
12-6 = 6
-24+2y-18
-42+2y
hope this helps
The answer would be letter C
From the attached graph, we see that
f(x) is increassing in (- ∞ , -4), and
f(x) is decreasing in ( -4, ∞ )
therefore
The function is increasing for all real values of x where x < –4. TRUE
<span>The function is increasing for all real values of x where –6 < x < –2. (FALSE, f(x) is positive in this range)
</span><span>The function is decreasing for all real values of x where x < –6 and where x > –2. (FALSE, f(x) is negative in this range)
</span><span>The function is decreasing for all real values of x where x < –4. (FALSE, f(x) is decreasing ∀ x>-4</span>