To determine the range of this function, we must first evaluate the domain. The square root function is a nice, neat function as long as the radicand isn’t negative. In this function, the radicand becomes negative after x gets smaller than -5, so the domain of this function is [-5, infinity).
Now that we know the domain, we can calculate the range. Beginning with the left boundary, we can substitute -5 into the function to see what y equals at this x-value. At -5, y equals 0, so the minimum value for the range is 0; with the right boundary, substituting infinity yields infinity, so the range is any number greater than 0.
D: x>= -5
R: y>=0
The 15th percentile (area below which 15 % of cases lie in a standard normal distribution is, from tables -1.04
<span>z=(x-mean)/sd </span>
<span>-1.04 = (x-100)/15 </span>
<span>x=100+15(-1.04) =84.4</span>
Answer:
16
Step-by-step explanation:
30-14=16