Solution
The z-score, also referred to as standard score, z-value, and normal score, among other things, is a dimensionless quantity that is used to indicate the signed, fractional, number of standard deviations by which an event is above the mean value being measured. Values above the mean have positive z-scores, while values below the mean have negative z-scores.
Mean is $650
Standard deviation = $50



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Therefore the estimated percent of apartment residents = 81.86%
Answer:
2.) slope: 1/4 y-intercept: -7
3.) slope: -2 y-intercept: 5
Step-by-step explanation:
Your equations are in the form of y = mx +b.
m = slope b = y-intercept
2.) m = 1/4 b = -7
3.) m = -2 b = 5
A number that that is divisible by 5 and 9
A. 4,545
Answer:
(4, -4)
Step-by-step explanation:
Using the midpoint formula;
M(X,Y) = {(ax1+bx2)/a+b, (ay1+by2)/a+b}
X = (ax1+bx2)/a+b
Y = (ay1+by2)/a+b
Substitute
X = 4(2)+2(8)/4+2
X = 8+16/6
X = 24/6
X = 4
Also
Y = 4(-3)+2(-6)/6
Y = -12-12/6
Y = -24/6
Y = -4
Hence the required partition is (4, -4)
Third piece = 6 feet />l=large
(3l+3) +(1/3l)+2 +l =15
multiply everything by 3
3l-3 +l+6+3l = 45
7l = 42
l = 6 (3rd piece) All pieces =6 + 5 +4 = 15