Answer:
True
Step-by-step explanation:
Given that:
M = 27, sample of n = 36 scores, µ = 30 and σ = 18.
The z score is used in statistics to determine by how many standard deviations the raw score is above or below the mean. If the z score is positive, the raw score is greater than the mean and if the z score is negative the raw score is less than the mean. The z score is given as:
Given that M = 27, this means that x = 27. Therefore:
This sample mean corresponds to a z-score of z = –1.00.
Answer:
y=
x+2
Step-by-step explanation:
Use equation M= 
this will give you the slope of the line.
to get b which is the y intercept take the y intercept which is 2
$39.00 + $15.00 + $17.50 = $71.50
$71.50 × 4 = $286
i am a mathematics teacher. if anything to ask please pm me
13x + 5y = 16
2x - 8y = 20
Multiply the equations;
13x + 5y = 16 [x2]
2x - 8y = 20 [x13]
26x + 20y = 32
26x - 104y = 260
Reverse the signs on one equation;
26x + 20y = 32
-26x + 104y = -260
'-26x' gets cancelled, leaving;
20y = 32
104y = -260
20y + 104y = 124y
32 - 260 = -228
124y = -228
y = -228 / 124
y = -1.84
Substitute in one equation and find 'x'.
Hope this helped! :)
48 2 96
—- • —- = —- 96/3 = 32 48-32 = 16
1 3 3
So her hair is 16 inches long now
