Answer:
And replacing the value obtained we got:
And if we solve for a we got
Step-by-step explanation:
Let X the random variable that represent the average home prices of a population, and for this case we know the distribution for X is given by:
Where and
For this part we want to find a value a, such that we satisfy this condition:
(a)
(b)
We want to find a value who accumulate 0.10 of the area on the left and 0.90 of the area on the right of the normal standard distributon and for this case it's z=-1.282
And using the distribution for the sample mean we can do this:
And replacing the value obtained we got:
And if we solve for a we got
<h3>
Answer: 1152 </h3>
========================================================
Explanation:
6/150 = 0.04 = 4% of the population are albino.
That leaves 100% - 4% = 96% that aren't albino.
96% of 1200 = 0.96*1200 = 1152
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Another way to look at it:
4% of the population are albino, so there are 0.04*1200 = 48 albino tigers.
This means there are 1200-48 = 1152 non-albino tigers.
Answer:
The y-coordinate of their intersection point is 3
That is y=3
Step-by-step explanation:
Given two lines are y=6x+15 and y=mx+4
Given that the two lines intersect at x=-2
To find the y coordinate of their intersection point :
Equating the two lines
6x+15=mx+4
6x+15-mx-4=0
6x-mx+11=0
(6-m)x+11=0
At x=-2 (6-m)x+11=0
(6-m)(-2)+11=0
(6-m)(-2)=-11
Substitute the value in y=mx+4 we get
At x=-2
Therefore y=3
Therefore the y-coordinate of their intersection point is 3
Answer:
M = 1 and M = -7.5
Step-by-step explanation:
The distance between A and B is 6 - (-1.5) = 7.5
Point 1: M is between AB. Since AM:MB = 1:2 then AM:AB = 1:(1+2) = 1:3
that means AM = 7.5 / 3 = 2.5
So M is at -1.5 + 2.5 = 1
Point 2: A is between MB. Since AM:MB = 1:2 then AM:AB = 1:(2-1) = 1
That means AM = AB = 6
So M is at -1.5 - 6 = -7.5
Yes zero is a rational number. XOXO your welcome ( Mark brainliest)